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Diffstat (limited to 'fs/f2fs/file.c')
-rw-r--r--fs/f2fs/file.c2025
1 files changed, 1545 insertions, 480 deletions
diff --git a/fs/f2fs/file.c b/fs/f2fs/file.c
index 09185ce2493c..eadd80ca1f27 100644
--- a/fs/f2fs/file.c
+++ b/fs/f2fs/file.c
@@ -21,6 +21,9 @@
#include <linux/mount.h>
#include <linux/pagevec.h>
#include <linux/random.h>
+#include <linux/uio.h>
+#include <linux/uuid.h>
+#include <linux/file.h>
#include "f2fs.h"
#include "node.h"
@@ -31,6 +34,19 @@
#include "trace.h"
#include <trace/events/f2fs.h>
+static int f2fs_filemap_fault(struct vm_area_struct *vma,
+ struct vm_fault *vmf)
+{
+ struct inode *inode = file_inode(vma->vm_file);
+ int err;
+
+ down_read(&F2FS_I(inode)->i_mmap_sem);
+ err = filemap_fault(vma, vmf);
+ up_read(&F2FS_I(inode)->i_mmap_sem);
+
+ return err;
+}
+
static int f2fs_vm_page_mkwrite(struct vm_area_struct *vma,
struct vm_fault *vmf)
{
@@ -40,7 +56,10 @@ static int f2fs_vm_page_mkwrite(struct vm_area_struct *vma,
struct dnode_of_data dn;
int err;
- f2fs_balance_fs(sbi);
+ if (unlikely(f2fs_cp_error(sbi))) {
+ err = -EIO;
+ goto err;
+ }
sb_start_pagefault(inode->i_sb);
@@ -57,14 +76,17 @@ static int f2fs_vm_page_mkwrite(struct vm_area_struct *vma,
f2fs_put_dnode(&dn);
f2fs_unlock_op(sbi);
+ f2fs_balance_fs(sbi, dn.node_changed);
+
file_update_time(vma->vm_file);
+ down_read(&F2FS_I(inode)->i_mmap_sem);
lock_page(page);
if (unlikely(page->mapping != inode->i_mapping ||
page_offset(page) > i_size_read(inode) ||
!PageUptodate(page))) {
unlock_page(page);
err = -EFAULT;
- goto out;
+ goto out_sem;
}
/*
@@ -74,33 +96,38 @@ static int f2fs_vm_page_mkwrite(struct vm_area_struct *vma,
goto mapped;
/* page is wholly or partially inside EOF */
- if (((loff_t)(page->index + 1) << PAGE_CACHE_SHIFT) >
+ if (((loff_t)(page->index + 1) << PAGE_SHIFT) >
i_size_read(inode)) {
unsigned offset;
- offset = i_size_read(inode) & ~PAGE_CACHE_MASK;
- zero_user_segment(page, offset, PAGE_CACHE_SIZE);
+ offset = i_size_read(inode) & ~PAGE_MASK;
+ zero_user_segment(page, offset, PAGE_SIZE);
}
set_page_dirty(page);
- SetPageUptodate(page);
+ if (!PageUptodate(page))
+ SetPageUptodate(page);
+
+ f2fs_update_iostat(sbi, APP_MAPPED_IO, F2FS_BLKSIZE);
trace_f2fs_vm_page_mkwrite(page, DATA);
mapped:
/* fill the page */
- f2fs_wait_on_page_writeback(page, DATA);
+ f2fs_wait_on_page_writeback(page, DATA, false);
- /* wait for GCed encrypted page writeback */
- if (f2fs_encrypted_inode(inode) && S_ISREG(inode->i_mode))
- f2fs_wait_on_encrypted_page_writeback(sbi, dn.data_blkaddr);
+ /* wait for GCed page writeback via META_MAPPING */
+ if (f2fs_post_read_required(inode))
+ f2fs_wait_on_block_writeback(sbi, dn.data_blkaddr);
- /* if gced page is attached, don't write to cold segment */
- clear_cold_data(page);
+out_sem:
+ up_read(&F2FS_I(inode)->i_mmap_sem);
out:
sb_end_pagefault(inode->i_sb);
+ f2fs_update_time(sbi, REQ_TIME);
+err:
return block_page_mkwrite_return(err);
}
static const struct vm_operations_struct f2fs_file_vm_ops = {
- .fault = filemap_fault,
+ .fault = f2fs_filemap_fault,
.map_pages = filemap_map_pages,
.page_mkwrite = f2fs_vm_page_mkwrite,
};
@@ -115,39 +142,38 @@ static int get_parent_ino(struct inode *inode, nid_t *pino)
if (!dentry)
return 0;
- if (update_dent_inode(inode, inode, &dentry->d_name)) {
- dput(dentry);
- return 0;
- }
-
*pino = parent_ino(dentry);
dput(dentry);
return 1;
}
-static inline bool need_do_checkpoint(struct inode *inode)
+static inline enum cp_reason_type need_do_checkpoint(struct inode *inode)
{
struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
- bool need_cp = false;
+ enum cp_reason_type cp_reason = CP_NO_NEEDED;
- if (!S_ISREG(inode->i_mode) || inode->i_nlink != 1)
- need_cp = true;
- else if (file_enc_name(inode) && need_dentry_mark(sbi, inode->i_ino))
- need_cp = true;
+ if (!S_ISREG(inode->i_mode))
+ cp_reason = CP_NON_REGULAR;
+ else if (inode->i_nlink != 1)
+ cp_reason = CP_HARDLINK;
+ else if (is_sbi_flag_set(sbi, SBI_NEED_CP))
+ cp_reason = CP_SB_NEED_CP;
else if (file_wrong_pino(inode))
- need_cp = true;
+ cp_reason = CP_WRONG_PINO;
else if (!space_for_roll_forward(sbi))
- need_cp = true;
+ cp_reason = CP_NO_SPC_ROLL;
else if (!is_checkpointed_node(sbi, F2FS_I(inode)->i_pino))
- need_cp = true;
- else if (F2FS_I(inode)->xattr_ver == cur_cp_version(F2FS_CKPT(sbi)))
- need_cp = true;
+ cp_reason = CP_NODE_NEED_CP;
else if (test_opt(sbi, FASTBOOT))
- need_cp = true;
- else if (sbi->active_logs == 2)
- need_cp = true;
-
- return need_cp;
+ cp_reason = CP_FASTBOOT_MODE;
+ else if (F2FS_OPTION(sbi).active_logs == 2)
+ cp_reason = CP_SPEC_LOG_NUM;
+ else if (F2FS_OPTION(sbi).fsync_mode == FSYNC_MODE_STRICT &&
+ need_dentry_mark(sbi, inode->i_ino) &&
+ exist_written_data(sbi, F2FS_I(inode)->i_pino, TRANS_DIR_INO))
+ cp_reason = CP_RECOVER_DIR;
+
+ return cp_reason;
}
static bool need_inode_page_update(struct f2fs_sb_info *sbi, nid_t ino)
@@ -167,28 +193,22 @@ static void try_to_fix_pino(struct inode *inode)
nid_t pino;
down_write(&fi->i_sem);
- fi->xattr_ver = 0;
if (file_wrong_pino(inode) && inode->i_nlink == 1 &&
get_parent_ino(inode, &pino)) {
- fi->i_pino = pino;
+ f2fs_i_pino_write(inode, pino);
file_got_pino(inode);
- up_write(&fi->i_sem);
-
- mark_inode_dirty_sync(inode);
- f2fs_write_inode(inode, NULL);
- } else {
- up_write(&fi->i_sem);
}
+ up_write(&fi->i_sem);
}
-int f2fs_sync_file(struct file *file, loff_t start, loff_t end, int datasync)
+static int f2fs_do_sync_file(struct file *file, loff_t start, loff_t end,
+ int datasync, bool atomic)
{
struct inode *inode = file->f_mapping->host;
- struct f2fs_inode_info *fi = F2FS_I(inode);
struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
nid_t ino = inode->i_ino;
int ret = 0;
- bool need_cp = false;
+ enum cp_reason_type cp_reason = 0;
struct writeback_control wbc = {
.sync_mode = WB_SYNC_ALL,
.nr_to_write = LONG_MAX,
@@ -204,18 +224,18 @@ int f2fs_sync_file(struct file *file, loff_t start, loff_t end, int datasync)
goto go_write;
/* if fdatasync is triggered, let's do in-place-update */
- if (get_dirty_pages(inode) <= SM_I(sbi)->min_fsync_blocks)
- set_inode_flag(fi, FI_NEED_IPU);
+ if (datasync || get_dirty_pages(inode) <= SM_I(sbi)->min_fsync_blocks)
+ set_inode_flag(inode, FI_NEED_IPU);
ret = filemap_write_and_wait_range(inode->i_mapping, start, end);
- clear_inode_flag(fi, FI_NEED_IPU);
+ clear_inode_flag(inode, FI_NEED_IPU);
if (ret) {
- trace_f2fs_sync_file_exit(inode, need_cp, datasync, ret);
+ trace_f2fs_sync_file_exit(inode, cp_reason, datasync, ret);
return ret;
}
/* if the inode is dirty, let's recover all the time */
- if (!datasync) {
+ if (!f2fs_skip_inode_update(inode, datasync)) {
f2fs_write_inode(inode, NULL);
goto go_write;
}
@@ -223,31 +243,28 @@ int f2fs_sync_file(struct file *file, loff_t start, loff_t end, int datasync)
/*
* if there is no written data, don't waste time to write recovery info.
*/
- if (!is_inode_flag_set(fi, FI_APPEND_WRITE) &&
+ if (!is_inode_flag_set(inode, FI_APPEND_WRITE) &&
!exist_written_data(sbi, ino, APPEND_INO)) {
/* it may call write_inode just prior to fsync */
if (need_inode_page_update(sbi, ino))
goto go_write;
- if (is_inode_flag_set(fi, FI_UPDATE_WRITE) ||
+ if (is_inode_flag_set(inode, FI_UPDATE_WRITE) ||
exist_written_data(sbi, ino, UPDATE_INO))
goto flush_out;
goto out;
}
go_write:
- /* guarantee free sections for fsync */
- f2fs_balance_fs(sbi);
-
/*
* Both of fdatasync() and fsync() are able to be recovered from
* sudden-power-off.
*/
- down_read(&fi->i_sem);
- need_cp = need_do_checkpoint(inode);
- up_read(&fi->i_sem);
+ down_read(&F2FS_I(inode)->i_sem);
+ cp_reason = need_do_checkpoint(inode);
+ up_read(&F2FS_I(inode)->i_sem);
- if (need_cp) {
+ if (cp_reason) {
/* all the dirty node pages should be flushed for POR */
ret = f2fs_sync_fs(inode->i_sb, 1);
@@ -256,40 +273,66 @@ go_write:
* will be used only for fsynced inodes after checkpoint.
*/
try_to_fix_pino(inode);
- clear_inode_flag(fi, FI_APPEND_WRITE);
- clear_inode_flag(fi, FI_UPDATE_WRITE);
+ clear_inode_flag(inode, FI_APPEND_WRITE);
+ clear_inode_flag(inode, FI_UPDATE_WRITE);
goto out;
}
sync_nodes:
- sync_node_pages(sbi, ino, &wbc);
+ ret = fsync_node_pages(sbi, inode, &wbc, atomic);
+ if (ret)
+ goto out;
/* if cp_error was enabled, we should avoid infinite loop */
- if (unlikely(f2fs_cp_error(sbi)))
+ if (unlikely(f2fs_cp_error(sbi))) {
+ ret = -EIO;
goto out;
+ }
if (need_inode_block_update(sbi, ino)) {
- mark_inode_dirty_sync(inode);
+ f2fs_mark_inode_dirty_sync(inode, true);
f2fs_write_inode(inode, NULL);
goto sync_nodes;
}
- ret = wait_on_node_pages_writeback(sbi, ino);
- if (ret)
- goto out;
+ /*
+ * If it's atomic_write, it's just fine to keep write ordering. So
+ * here we don't need to wait for node write completion, since we use
+ * node chain which serializes node blocks. If one of node writes are
+ * reordered, we can see simply broken chain, resulting in stopping
+ * roll-forward recovery. It means we'll recover all or none node blocks
+ * given fsync mark.
+ */
+ if (!atomic) {
+ ret = wait_on_node_pages_writeback(sbi, ino);
+ if (ret)
+ goto out;
+ }
/* once recovery info is written, don't need to tack this */
- remove_dirty_inode(sbi, ino, APPEND_INO);
- clear_inode_flag(fi, FI_APPEND_WRITE);
+ remove_ino_entry(sbi, ino, APPEND_INO);
+ clear_inode_flag(inode, FI_APPEND_WRITE);
flush_out:
- remove_dirty_inode(sbi, ino, UPDATE_INO);
- clear_inode_flag(fi, FI_UPDATE_WRITE);
- ret = f2fs_issue_flush(sbi);
+ if (!atomic && F2FS_OPTION(sbi).fsync_mode != FSYNC_MODE_NOBARRIER)
+ ret = f2fs_issue_flush(sbi, inode->i_ino);
+ if (!ret) {
+ remove_ino_entry(sbi, ino, UPDATE_INO);
+ clear_inode_flag(inode, FI_UPDATE_WRITE);
+ remove_ino_entry(sbi, ino, FLUSH_INO);
+ }
+ f2fs_update_time(sbi, REQ_TIME);
out:
- trace_f2fs_sync_file_exit(inode, need_cp, datasync, ret);
+ trace_f2fs_sync_file_exit(inode, cp_reason, datasync, ret);
f2fs_trace_ios(NULL, 1);
return ret;
}
+int f2fs_sync_file(struct file *file, loff_t start, loff_t end, int datasync)
+{
+ if (unlikely(f2fs_cp_error(F2FS_I_SB(file_inode(file)))))
+ return -EIO;
+ return f2fs_do_sync_file(file, start, end, datasync, false);
+}
+
static pgoff_t __get_first_dirty_index(struct address_space *mapping,
pgoff_t pgofs, int whence)
{
@@ -303,18 +346,18 @@ static pgoff_t __get_first_dirty_index(struct address_space *mapping,
pagevec_init(&pvec, 0);
nr_pages = pagevec_lookup_tag(&pvec, mapping, &pgofs,
PAGECACHE_TAG_DIRTY, 1);
- pgofs = nr_pages ? pvec.pages[0]->index : LONG_MAX;
+ pgofs = nr_pages ? pvec.pages[0]->index : ULONG_MAX;
pagevec_release(&pvec);
return pgofs;
}
-static bool __found_offset(struct f2fs_sb_info *sbi, block_t blkaddr,
- pgoff_t dirty, pgoff_t pgofs, int whence)
+static bool __found_offset(block_t blkaddr, pgoff_t dirty, pgoff_t pgofs,
+ int whence)
{
switch (whence) {
case SEEK_DATA:
if ((blkaddr == NEW_ADDR && dirty == pgofs) ||
- is_valid_data_blkaddr(sbi, blkaddr))
+ (blkaddr != NEW_ADDR && blkaddr != NULL_ADDR))
return true;
break;
case SEEK_HOLE:
@@ -335,7 +378,7 @@ static loff_t f2fs_seek_block(struct file *file, loff_t offset, int whence)
loff_t isize;
int err = 0;
- mutex_lock(&inode->i_mutex);
+ inode_lock(inode);
isize = i_size_read(inode);
if (offset >= isize)
@@ -348,44 +391,36 @@ static loff_t f2fs_seek_block(struct file *file, loff_t offset, int whence)
goto found;
}
- pgofs = (pgoff_t)(offset >> PAGE_CACHE_SHIFT);
+ pgofs = (pgoff_t)(offset >> PAGE_SHIFT);
dirty = __get_first_dirty_index(inode->i_mapping, pgofs, whence);
- for (; data_ofs < isize; data_ofs = (loff_t)pgofs << PAGE_CACHE_SHIFT) {
+ for (; data_ofs < isize; data_ofs = (loff_t)pgofs << PAGE_SHIFT) {
set_new_dnode(&dn, inode, NULL, NULL, 0);
- err = get_dnode_of_data(&dn, pgofs, LOOKUP_NODE_RA);
+ err = get_dnode_of_data(&dn, pgofs, LOOKUP_NODE);
if (err && err != -ENOENT) {
goto fail;
} else if (err == -ENOENT) {
/* direct node does not exists */
if (whence == SEEK_DATA) {
- pgofs = PGOFS_OF_NEXT_DNODE(pgofs,
- F2FS_I(inode));
+ pgofs = get_next_page_offset(&dn, pgofs);
continue;
} else {
goto found;
}
}
- end_offset = ADDRS_PER_PAGE(dn.node_page, F2FS_I(inode));
+ end_offset = ADDRS_PER_PAGE(dn.node_page, inode);
/* find data/hole in dnode block */
for (; dn.ofs_in_node < end_offset;
dn.ofs_in_node++, pgofs++,
- data_ofs = (loff_t)pgofs << PAGE_CACHE_SHIFT) {
+ data_ofs = (loff_t)pgofs << PAGE_SHIFT) {
block_t blkaddr;
- blkaddr = datablock_addr(dn.node_page, dn.ofs_in_node);
-
- if (__is_valid_data_blkaddr(blkaddr) &&
- !f2fs_is_valid_blkaddr(F2FS_I_SB(inode),
- blkaddr, DATA_GENERIC)) {
- f2fs_put_dnode(&dn);
- goto fail;
- }
+ blkaddr = datablock_addr(dn.inode,
+ dn.node_page, dn.ofs_in_node);
- if (__found_offset(F2FS_I_SB(inode), blkaddr, dirty,
- pgofs, whence)) {
+ if (__found_offset(blkaddr, dirty, pgofs, whence)) {
f2fs_put_dnode(&dn);
goto found;
}
@@ -398,10 +433,10 @@ static loff_t f2fs_seek_block(struct file *file, loff_t offset, int whence)
found:
if (whence == SEEK_HOLE && data_ofs > isize)
data_ofs = isize;
- mutex_unlock(&inode->i_mutex);
+ inode_unlock(inode);
return vfs_setpos(file, data_ofs, maxbytes);
fail:
- mutex_unlock(&inode->i_mutex);
+ inode_unlock(inode);
return -ENXIO;
}
@@ -429,19 +464,15 @@ static loff_t f2fs_llseek(struct file *file, loff_t offset, int whence)
static int f2fs_file_mmap(struct file *file, struct vm_area_struct *vma)
{
struct inode *inode = file_inode(file);
+ int err;
- if (f2fs_encrypted_inode(inode)) {
- int err = f2fs_get_encryption_info(inode);
- if (err)
- return 0;
- }
+ if (unlikely(f2fs_cp_error(F2FS_I_SB(inode))))
+ return -EIO;
/* we don't need to use inline_data strictly */
- if (f2fs_has_inline_data(inode)) {
- int err = f2fs_convert_inline_inode(inode);
- if (err)
- return err;
- }
+ err = f2fs_convert_inline_inode(inode);
+ if (err)
+ return err;
file_accessed(file);
vma->vm_ops = &f2fs_file_vm_ops;
@@ -450,25 +481,29 @@ static int f2fs_file_mmap(struct file *file, struct vm_area_struct *vma)
static int f2fs_file_open(struct inode *inode, struct file *filp)
{
- int ret = generic_file_open(inode, filp);
+ int err = fscrypt_file_open(inode, filp);
- if (!ret && f2fs_encrypted_inode(inode)) {
- ret = f2fs_get_encryption_info(inode);
- if (ret)
- ret = -EACCES;
- }
- return ret;
+ if (err)
+ return err;
+
+ filp->f_mode |= FMODE_NOWAIT;
+
+ return dquot_file_open(inode, filp);
}
-int truncate_data_blocks_range(struct dnode_of_data *dn, int count)
+void truncate_data_blocks_range(struct dnode_of_data *dn, int count)
{
struct f2fs_sb_info *sbi = F2FS_I_SB(dn->inode);
struct f2fs_node *raw_node;
int nr_free = 0, ofs = dn->ofs_in_node, len = count;
__le32 *addr;
+ int base = 0;
+
+ if (IS_INODE(dn->node_page) && f2fs_has_extra_attr(dn->inode))
+ base = get_extra_isize(dn->inode);
raw_node = F2FS_NODE(dn->node_page);
- addr = blkaddr_in_node(raw_node) + ofs;
+ addr = blkaddr_in_node(raw_node) + base + ofs;
for (; count > 0; count--, addr++, dn->ofs_in_node++) {
block_t blkaddr = le32_to_cpu(*addr);
@@ -477,15 +512,9 @@ int truncate_data_blocks_range(struct dnode_of_data *dn, int count)
dn->data_blkaddr = NULL_ADDR;
set_data_blkaddr(dn);
-
- if (__is_valid_data_blkaddr(blkaddr) &&
- !f2fs_is_valid_blkaddr(sbi, blkaddr, DATA_GENERIC))
- continue;
-
invalidate_blocks(sbi, blkaddr);
if (dn->ofs_in_node == 0 && IS_INODE(dn->node_page))
- clear_inode_flag(F2FS_I(dn->inode),
- FI_FIRST_BLOCK_WRITTEN);
+ clear_inode_flag(dn->inode, FI_FIRST_BLOCK_WRITTEN);
nr_free++;
}
@@ -496,17 +525,15 @@ int truncate_data_blocks_range(struct dnode_of_data *dn, int count)
* we will invalidate all blkaddr in the whole range.
*/
fofs = start_bidx_of_node(ofs_of_node(dn->node_page),
- F2FS_I(dn->inode)) + ofs;
+ dn->inode) + ofs;
f2fs_update_extent_cache_range(dn, fofs, 0, len);
dec_valid_block_count(sbi, dn->inode, nr_free);
- set_page_dirty(dn->node_page);
- sync_inode_page(dn);
}
dn->ofs_in_node = ofs;
+ f2fs_update_time(sbi, REQ_TIME);
trace_f2fs_truncate_data_blocks_range(dn->inode, dn->nid,
dn->ofs_in_node, nr_free);
- return nr_free;
}
void truncate_data_blocks(struct dnode_of_data *dn)
@@ -517,8 +544,8 @@ void truncate_data_blocks(struct dnode_of_data *dn)
static int truncate_partial_data_page(struct inode *inode, u64 from,
bool cache_only)
{
- unsigned offset = from & (PAGE_CACHE_SIZE - 1);
- pgoff_t index = from >> PAGE_CACHE_SHIFT;
+ unsigned offset = from & (PAGE_SIZE - 1);
+ pgoff_t index = from >> PAGE_SHIFT;
struct address_space *mapping = inode->i_mapping;
struct page *page;
@@ -526,7 +553,7 @@ static int truncate_partial_data_page(struct inode *inode, u64 from,
return 0;
if (cache_only) {
- page = f2fs_grab_cache_page(mapping, index, false);
+ page = find_lock_page(mapping, index);
if (page && PageUptodate(page))
goto truncate_out;
f2fs_put_page(page, 1);
@@ -535,11 +562,14 @@ static int truncate_partial_data_page(struct inode *inode, u64 from,
page = get_lock_data_page(inode, index, true);
if (IS_ERR(page))
- return 0;
+ return PTR_ERR(page) == -ENOENT ? 0 : PTR_ERR(page);
truncate_out:
- f2fs_wait_on_page_writeback(page, DATA);
- zero_user(page, offset, PAGE_CACHE_SIZE - offset);
- if (!cache_only || !f2fs_encrypted_inode(inode) || !S_ISREG(inode->i_mode))
+ f2fs_wait_on_page_writeback(page, DATA, true);
+ zero_user(page, offset, PAGE_SIZE - offset);
+
+ /* An encrypted inode should have a key and truncate the last page. */
+ f2fs_bug_on(F2FS_I_SB(inode), cache_only && f2fs_encrypted_inode(inode));
+ if (!cache_only)
set_page_dirty(page);
f2fs_put_page(page, 1);
return 0;
@@ -548,7 +578,6 @@ truncate_out:
int truncate_blocks(struct inode *inode, u64 from, bool lock)
{
struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
- unsigned int blocksize = inode->i_sb->s_blocksize;
struct dnode_of_data dn;
pgoff_t free_from;
int count = 0, err = 0;
@@ -557,7 +586,10 @@ int truncate_blocks(struct inode *inode, u64 from, bool lock)
trace_f2fs_truncate_blocks_enter(inode, from);
- free_from = (pgoff_t)F2FS_BYTES_TO_BLK(from + blocksize - 1);
+ free_from = (pgoff_t)F2FS_BLK_ALIGN(from);
+
+ if (free_from >= sbi->max_file_blocks)
+ goto free_partial;
if (lock)
f2fs_lock_op(sbi);
@@ -569,22 +601,21 @@ int truncate_blocks(struct inode *inode, u64 from, bool lock)
}
if (f2fs_has_inline_data(inode)) {
- if (truncate_inline_inode(ipage, from))
- set_page_dirty(ipage);
+ truncate_inline_inode(inode, ipage, from);
f2fs_put_page(ipage, 1);
truncate_page = true;
goto out;
}
set_new_dnode(&dn, inode, ipage, NULL, 0);
- err = get_dnode_of_data(&dn, free_from, LOOKUP_NODE);
+ err = get_dnode_of_data(&dn, free_from, LOOKUP_NODE_RA);
if (err) {
if (err == -ENOENT)
goto free_next;
goto out;
}
- count = ADDRS_PER_PAGE(dn.node_page, F2FS_I(inode));
+ count = ADDRS_PER_PAGE(dn.node_page, inode);
count -= dn.ofs_in_node;
f2fs_bug_on(sbi, count < 0);
@@ -600,7 +631,7 @@ free_next:
out:
if (lock)
f2fs_unlock_op(sbi);
-
+free_partial:
/* lastly zero out the first data page */
if (!err)
err = truncate_partial_data_page(inode, from, truncate_page);
@@ -609,29 +640,38 @@ out:
return err;
}
-int f2fs_truncate(struct inode *inode, bool lock)
+int f2fs_truncate(struct inode *inode)
{
int err;
+ if (unlikely(f2fs_cp_error(F2FS_I_SB(inode))))
+ return -EIO;
+
if (!(S_ISREG(inode->i_mode) || S_ISDIR(inode->i_mode) ||
S_ISLNK(inode->i_mode)))
return 0;
trace_f2fs_truncate(inode);
+#ifdef CONFIG_F2FS_FAULT_INJECTION
+ if (time_to_inject(F2FS_I_SB(inode), FAULT_TRUNCATE)) {
+ f2fs_show_injection_info(FAULT_TRUNCATE);
+ return -EIO;
+ }
+#endif
/* we should check inline_data size */
- if (f2fs_has_inline_data(inode) && !f2fs_may_inline_data(inode)) {
+ if (!f2fs_may_inline_data(inode)) {
err = f2fs_convert_inline_inode(inode);
if (err)
return err;
}
- err = truncate_blocks(inode, i_size_read(inode), lock);
+ err = truncate_blocks(inode, i_size_read(inode), true);
if (err)
return err;
- inode->i_mtime = inode->i_ctime = CURRENT_TIME;
- mark_inode_dirty(inode);
+ inode->i_mtime = inode->i_ctime = current_time(inode);
+ f2fs_mark_inode_dirty_sync(inode, false);
return 0;
}
@@ -639,15 +679,50 @@ int f2fs_getattr(struct vfsmount *mnt,
struct dentry *dentry, struct kstat *stat)
{
struct inode *inode = d_inode(dentry);
+#if 0
+ struct f2fs_inode_info *fi = F2FS_I(inode);
+ struct f2fs_inode *ri;
+ unsigned int flags;
+
+ if (f2fs_has_extra_attr(inode) &&
+ f2fs_sb_has_inode_crtime(inode->i_sb) &&
+ F2FS_FITS_IN_INODE(ri, fi->i_extra_isize, i_crtime)) {
+ stat->result_mask |= STATX_BTIME;
+ stat->btime.tv_sec = fi->i_crtime.tv_sec;
+ stat->btime.tv_nsec = fi->i_crtime.tv_nsec;
+ }
+
+ flags = fi->i_flags & (FS_FL_USER_VISIBLE | FS_PROJINHERIT_FL);
+ if (flags & FS_APPEND_FL)
+ stat->attributes |= STATX_ATTR_APPEND;
+ if (flags & FS_COMPR_FL)
+ stat->attributes |= STATX_ATTR_COMPRESSED;
+ if (f2fs_encrypted_inode(inode))
+ stat->attributes |= STATX_ATTR_ENCRYPTED;
+ if (flags & FS_IMMUTABLE_FL)
+ stat->attributes |= STATX_ATTR_IMMUTABLE;
+ if (flags & FS_NODUMP_FL)
+ stat->attributes |= STATX_ATTR_NODUMP;
+
+ stat->attributes_mask |= (STATX_ATTR_APPEND |
+ STATX_ATTR_COMPRESSED |
+ STATX_ATTR_ENCRYPTED |
+ STATX_ATTR_IMMUTABLE |
+ STATX_ATTR_NODUMP);
+#endif
generic_fillattr(inode, stat);
- stat->blocks <<= 3;
+
+ /* we need to show initial sectors used for inline_data/dentries */
+ if ((S_ISREG(inode->i_mode) && f2fs_has_inline_data(inode)) ||
+ f2fs_has_inline_dentry(inode))
+ stat->blocks += (stat->size + 511) >> 9;
+
return 0;
}
#ifdef CONFIG_F2FS_FS_POSIX_ACL
static void __setattr_copy(struct inode *inode, const struct iattr *attr)
{
- struct f2fs_inode_info *fi = F2FS_I(inode);
unsigned int ia_valid = attr->ia_valid;
if (ia_valid & ATTR_UID)
@@ -669,7 +744,7 @@ static void __setattr_copy(struct inode *inode, const struct iattr *attr)
if (!in_group_p(inode->i_gid) &&
!capable_wrt_inode_uidgid(inode, CAP_FSETID))
mode &= ~S_ISGID;
- set_acl_inode(fi, mode);
+ set_acl_inode(inode, mode);
}
}
#else
@@ -679,45 +754,83 @@ static void __setattr_copy(struct inode *inode, const struct iattr *attr)
int f2fs_setattr(struct dentry *dentry, struct iattr *attr)
{
struct inode *inode = d_inode(dentry);
- struct f2fs_inode_info *fi = F2FS_I(inode);
int err;
+ bool size_changed = false;
+
+ if (unlikely(f2fs_cp_error(F2FS_I_SB(inode))))
+ return -EIO;
err = inode_change_ok(inode, attr);
if (err)
return err;
- if (attr->ia_valid & ATTR_SIZE) {
- if (f2fs_encrypted_inode(inode) &&
- f2fs_get_encryption_info(inode))
- return -EACCES;
+ err = fscrypt_prepare_setattr(dentry, attr);
+ if (err)
+ return err;
+
+ if (is_quota_modification(inode, attr)) {
+ err = dquot_initialize(inode);
+ if (err)
+ return err;
+ }
+ if ((attr->ia_valid & ATTR_UID &&
+ !uid_eq(attr->ia_uid, inode->i_uid)) ||
+ (attr->ia_valid & ATTR_GID &&
+ !gid_eq(attr->ia_gid, inode->i_gid))) {
+ err = dquot_transfer(inode, attr);
+ if (err)
+ return err;
+ }
+ if (attr->ia_valid & ATTR_SIZE) {
if (attr->ia_size <= i_size_read(inode)) {
+ down_write(&F2FS_I(inode)->i_mmap_sem);
truncate_setsize(inode, attr->ia_size);
- err = f2fs_truncate(inode, true);
+ err = f2fs_truncate(inode);
+ up_write(&F2FS_I(inode)->i_mmap_sem);
if (err)
return err;
- f2fs_balance_fs(F2FS_I_SB(inode));
} else {
/*
* do not trim all blocks after i_size if target size is
* larger than i_size.
*/
+ down_write(&F2FS_I(inode)->i_mmap_sem);
truncate_setsize(inode, attr->ia_size);
- inode->i_mtime = inode->i_ctime = CURRENT_TIME;
+ up_write(&F2FS_I(inode)->i_mmap_sem);
+
+ /* should convert inline inode here */
+ if (!f2fs_may_inline_data(inode)) {
+ err = f2fs_convert_inline_inode(inode);
+ if (err)
+ return err;
+ }
+ inode->i_mtime = inode->i_ctime = current_time(inode);
}
+
+ down_write(&F2FS_I(inode)->i_sem);
+ F2FS_I(inode)->last_disk_size = i_size_read(inode);
+ up_write(&F2FS_I(inode)->i_sem);
+
+ size_changed = true;
}
__setattr_copy(inode, attr);
if (attr->ia_valid & ATTR_MODE) {
err = posix_acl_chmod(inode, get_inode_mode(inode));
- if (err || is_inode_flag_set(fi, FI_ACL_MODE)) {
- inode->i_mode = fi->i_acl_mode;
- clear_inode_flag(fi, FI_ACL_MODE);
+ if (err || is_inode_flag_set(inode, FI_ACL_MODE)) {
+ inode->i_mode = F2FS_I(inode)->i_acl_mode;
+ clear_inode_flag(inode, FI_ACL_MODE);
}
}
- mark_inode_dirty(inode);
+ /* file size may changed here */
+ f2fs_mark_inode_dirty_sync(inode, size_changed);
+
+ /* inode change will produce dirty node pages flushed by checkpoint */
+ f2fs_balance_fs(F2FS_I_SB(inode), true);
+
return err;
}
@@ -744,7 +857,7 @@ static int fill_zero(struct inode *inode, pgoff_t index,
if (!len)
return 0;
- f2fs_balance_fs(sbi);
+ f2fs_balance_fs(sbi, true);
f2fs_lock_op(sbi);
page = get_new_data_page(inode, NULL, index, false);
@@ -753,7 +866,7 @@ static int fill_zero(struct inode *inode, pgoff_t index,
if (IS_ERR(page))
return PTR_ERR(page);
- f2fs_wait_on_page_writeback(page, DATA);
+ f2fs_wait_on_page_writeback(page, DATA, true);
zero_user(page, start, len);
set_page_dirty(page);
f2fs_put_page(page, 1);
@@ -772,13 +885,13 @@ int truncate_hole(struct inode *inode, pgoff_t pg_start, pgoff_t pg_end)
err = get_dnode_of_data(&dn, pg_start, LOOKUP_NODE);
if (err) {
if (err == -ENOENT) {
- pg_start++;
+ pg_start = get_next_page_offset(&dn, pg_start);
continue;
}
return err;
}
- end_offset = ADDRS_PER_PAGE(dn.node_page, F2FS_I(inode));
+ end_offset = ADDRS_PER_PAGE(dn.node_page, inode);
count = min(end_offset - dn.ofs_in_node, pg_end - pg_start);
f2fs_bug_on(F2FS_I_SB(inode), count == 0 || count > end_offset);
@@ -795,19 +908,17 @@ static int punch_hole(struct inode *inode, loff_t offset, loff_t len)
{
pgoff_t pg_start, pg_end;
loff_t off_start, off_end;
- int ret = 0;
+ int ret;
- if (f2fs_has_inline_data(inode)) {
- ret = f2fs_convert_inline_inode(inode);
- if (ret)
- return ret;
- }
+ ret = f2fs_convert_inline_inode(inode);
+ if (ret)
+ return ret;
- pg_start = ((unsigned long long) offset) >> PAGE_CACHE_SHIFT;
- pg_end = ((unsigned long long) offset + len) >> PAGE_CACHE_SHIFT;
+ pg_start = ((unsigned long long) offset) >> PAGE_SHIFT;
+ pg_end = ((unsigned long long) offset + len) >> PAGE_SHIFT;
- off_start = offset & (PAGE_CACHE_SIZE - 1);
- off_end = (offset + len) & (PAGE_CACHE_SIZE - 1);
+ off_start = offset & (PAGE_SIZE - 1);
+ off_end = (offset + len) & (PAGE_SIZE - 1);
if (pg_start == pg_end) {
ret = fill_zero(inode, pg_start, off_start,
@@ -817,7 +928,7 @@ static int punch_hole(struct inode *inode, loff_t offset, loff_t len)
} else {
if (off_start) {
ret = fill_zero(inode, pg_start++, off_start,
- PAGE_CACHE_SIZE - off_start);
+ PAGE_SIZE - off_start);
if (ret)
return ret;
}
@@ -832,99 +943,220 @@ static int punch_hole(struct inode *inode, loff_t offset, loff_t len)
loff_t blk_start, blk_end;
struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
- f2fs_balance_fs(sbi);
+ f2fs_balance_fs(sbi, true);
- blk_start = (loff_t)pg_start << PAGE_CACHE_SHIFT;
- blk_end = (loff_t)pg_end << PAGE_CACHE_SHIFT;
+ blk_start = (loff_t)pg_start << PAGE_SHIFT;
+ blk_end = (loff_t)pg_end << PAGE_SHIFT;
+ down_write(&F2FS_I(inode)->i_mmap_sem);
truncate_inode_pages_range(mapping, blk_start,
blk_end - 1);
f2fs_lock_op(sbi);
ret = truncate_hole(inode, pg_start, pg_end);
f2fs_unlock_op(sbi);
+ up_write(&F2FS_I(inode)->i_mmap_sem);
}
}
return ret;
}
-static int __exchange_data_block(struct inode *inode, pgoff_t src,
- pgoff_t dst, bool full)
+static int __read_out_blkaddrs(struct inode *inode, block_t *blkaddr,
+ int *do_replace, pgoff_t off, pgoff_t len)
{
struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
struct dnode_of_data dn;
- block_t new_addr;
- bool do_replace = false;
- int ret;
+ int ret, done, i;
+next_dnode:
set_new_dnode(&dn, inode, NULL, NULL, 0);
- ret = get_dnode_of_data(&dn, src, LOOKUP_NODE_RA);
+ ret = get_dnode_of_data(&dn, off, LOOKUP_NODE_RA);
if (ret && ret != -ENOENT) {
return ret;
} else if (ret == -ENOENT) {
- new_addr = NULL_ADDR;
- } else {
- new_addr = dn.data_blkaddr;
- if (!is_checkpointed_data(sbi, new_addr)) {
- dn.data_blkaddr = NULL_ADDR;
+ if (dn.max_level == 0)
+ return -ENOENT;
+ done = min((pgoff_t)ADDRS_PER_BLOCK - dn.ofs_in_node, len);
+ blkaddr += done;
+ do_replace += done;
+ goto next;
+ }
+
+ done = min((pgoff_t)ADDRS_PER_PAGE(dn.node_page, inode) -
+ dn.ofs_in_node, len);
+ for (i = 0; i < done; i++, blkaddr++, do_replace++, dn.ofs_in_node++) {
+ *blkaddr = datablock_addr(dn.inode,
+ dn.node_page, dn.ofs_in_node);
+ if (!is_checkpointed_data(sbi, *blkaddr)) {
+
+ if (test_opt(sbi, LFS)) {
+ f2fs_put_dnode(&dn);
+ return -ENOTSUPP;
+ }
+
/* do not invalidate this block address */
- set_data_blkaddr(&dn);
- f2fs_update_extent_cache(&dn);
- do_replace = true;
+ f2fs_update_data_blkaddr(&dn, NULL_ADDR);
+ *do_replace = 1;
}
- f2fs_put_dnode(&dn);
}
+ f2fs_put_dnode(&dn);
+next:
+ len -= done;
+ off += done;
+ if (len)
+ goto next_dnode;
+ return 0;
+}
+
+static int __roll_back_blkaddrs(struct inode *inode, block_t *blkaddr,
+ int *do_replace, pgoff_t off, int len)
+{
+ struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
+ struct dnode_of_data dn;
+ int ret, i;
- if (new_addr == NULL_ADDR)
- return full ? truncate_hole(inode, dst, dst + 1) : 0;
+ for (i = 0; i < len; i++, do_replace++, blkaddr++) {
+ if (*do_replace == 0)
+ continue;
- if (do_replace) {
- struct page *ipage = get_node_page(sbi, inode->i_ino);
- struct node_info ni;
+ set_new_dnode(&dn, inode, NULL, NULL, 0);
+ ret = get_dnode_of_data(&dn, off + i, LOOKUP_NODE_RA);
+ if (ret) {
+ dec_valid_block_count(sbi, inode, 1);
+ invalidate_blocks(sbi, *blkaddr);
+ } else {
+ f2fs_update_data_blkaddr(&dn, *blkaddr);
+ }
+ f2fs_put_dnode(&dn);
+ }
+ return 0;
+}
- if (IS_ERR(ipage)) {
- ret = PTR_ERR(ipage);
- goto err_out;
+static int __clone_blkaddrs(struct inode *src_inode, struct inode *dst_inode,
+ block_t *blkaddr, int *do_replace,
+ pgoff_t src, pgoff_t dst, pgoff_t len, bool full)
+{
+ struct f2fs_sb_info *sbi = F2FS_I_SB(src_inode);
+ pgoff_t i = 0;
+ int ret;
+
+ while (i < len) {
+ if (blkaddr[i] == NULL_ADDR && !full) {
+ i++;
+ continue;
}
- set_new_dnode(&dn, inode, ipage, NULL, 0);
- ret = f2fs_reserve_block(&dn, dst);
- if (ret)
- goto err_out;
+ if (do_replace[i] || blkaddr[i] == NULL_ADDR) {
+ struct dnode_of_data dn;
+ struct node_info ni;
+ size_t new_size;
+ pgoff_t ilen;
- truncate_data_blocks_range(&dn, 1);
+ set_new_dnode(&dn, dst_inode, NULL, NULL, 0);
+ ret = get_dnode_of_data(&dn, dst + i, ALLOC_NODE);
+ if (ret)
+ return ret;
- get_node_info(sbi, dn.nid, &ni);
- f2fs_replace_block(sbi, &dn, dn.data_blkaddr, new_addr,
- ni.version, true);
- f2fs_put_dnode(&dn);
- } else {
- struct page *psrc, *pdst;
+ get_node_info(sbi, dn.nid, &ni);
+ ilen = min((pgoff_t)
+ ADDRS_PER_PAGE(dn.node_page, dst_inode) -
+ dn.ofs_in_node, len - i);
+ do {
+ dn.data_blkaddr = datablock_addr(dn.inode,
+ dn.node_page, dn.ofs_in_node);
+ truncate_data_blocks_range(&dn, 1);
+
+ if (do_replace[i]) {
+ f2fs_i_blocks_write(src_inode,
+ 1, false, false);
+ f2fs_i_blocks_write(dst_inode,
+ 1, true, false);
+ f2fs_replace_block(sbi, &dn, dn.data_blkaddr,
+ blkaddr[i], ni.version, true, false);
+
+ do_replace[i] = 0;
+ }
+ dn.ofs_in_node++;
+ i++;
+ new_size = (dst + i) << PAGE_SHIFT;
+ if (dst_inode->i_size < new_size)
+ f2fs_i_size_write(dst_inode, new_size);
+ } while (--ilen && (do_replace[i] || blkaddr[i] == NULL_ADDR));
- psrc = get_lock_data_page(inode, src, true);
- if (IS_ERR(psrc))
- return PTR_ERR(psrc);
- pdst = get_new_data_page(inode, NULL, dst, false);
- if (IS_ERR(pdst)) {
+ f2fs_put_dnode(&dn);
+ } else {
+ struct page *psrc, *pdst;
+
+ psrc = get_lock_data_page(src_inode, src + i, true);
+ if (IS_ERR(psrc))
+ return PTR_ERR(psrc);
+ pdst = get_new_data_page(dst_inode, NULL, dst + i,
+ true);
+ if (IS_ERR(pdst)) {
+ f2fs_put_page(psrc, 1);
+ return PTR_ERR(pdst);
+ }
+ f2fs_copy_page(psrc, pdst);
+ set_page_dirty(pdst);
+ f2fs_put_page(pdst, 1);
f2fs_put_page(psrc, 1);
- return PTR_ERR(pdst);
- }
- f2fs_copy_page(psrc, pdst);
- set_page_dirty(pdst);
- f2fs_put_page(pdst, 1);
- f2fs_put_page(psrc, 1);
- return truncate_hole(inode, src, src + 1);
+ ret = truncate_hole(src_inode, src + i, src + i + 1);
+ if (ret)
+ return ret;
+ i++;
+ }
}
return 0;
+}
-err_out:
- if (!get_dnode_of_data(&dn, src, LOOKUP_NODE)) {
- dn.data_blkaddr = new_addr;
- set_data_blkaddr(&dn);
- f2fs_update_extent_cache(&dn);
- f2fs_put_dnode(&dn);
+static int __exchange_data_block(struct inode *src_inode,
+ struct inode *dst_inode, pgoff_t src, pgoff_t dst,
+ pgoff_t len, bool full)
+{
+ block_t *src_blkaddr;
+ int *do_replace;
+ pgoff_t olen;
+ int ret;
+
+ while (len) {
+ olen = min((pgoff_t)4 * ADDRS_PER_BLOCK, len);
+
+ src_blkaddr = f2fs_kvzalloc(F2FS_I_SB(src_inode),
+ sizeof(block_t) * olen, GFP_KERNEL);
+ if (!src_blkaddr)
+ return -ENOMEM;
+
+ do_replace = f2fs_kvzalloc(F2FS_I_SB(src_inode),
+ sizeof(int) * olen, GFP_KERNEL);
+ if (!do_replace) {
+ kvfree(src_blkaddr);
+ return -ENOMEM;
+ }
+
+ ret = __read_out_blkaddrs(src_inode, src_blkaddr,
+ do_replace, src, olen);
+ if (ret)
+ goto roll_back;
+
+ ret = __clone_blkaddrs(src_inode, dst_inode, src_blkaddr,
+ do_replace, src, dst, olen, full);
+ if (ret)
+ goto roll_back;
+
+ src += olen;
+ dst += olen;
+ len -= olen;
+
+ kvfree(src_blkaddr);
+ kvfree(do_replace);
}
+ return 0;
+
+roll_back:
+ __roll_back_blkaddrs(src_inode, src_blkaddr, do_replace, src, len);
+ kvfree(src_blkaddr);
+ kvfree(do_replace);
return ret;
}
@@ -932,16 +1164,15 @@ static int f2fs_do_collapse(struct inode *inode, pgoff_t start, pgoff_t end)
{
struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
pgoff_t nrpages = (i_size_read(inode) + PAGE_SIZE - 1) / PAGE_SIZE;
- int ret = 0;
+ int ret;
- for (; end < nrpages; start++, end++) {
- f2fs_balance_fs(sbi);
- f2fs_lock_op(sbi);
- ret = __exchange_data_block(inode, end, start, true);
- f2fs_unlock_op(sbi);
- if (ret)
- break;
- }
+ f2fs_balance_fs(sbi, true);
+ f2fs_lock_op(sbi);
+
+ f2fs_drop_extent_tree(inode);
+
+ ret = __exchange_data_block(inode, inode, end, start, nrpages - end, true);
+ f2fs_unlock_op(sbi);
return ret;
}
@@ -958,27 +1189,27 @@ static int f2fs_collapse_range(struct inode *inode, loff_t offset, loff_t len)
if (offset & (F2FS_BLKSIZE - 1) || len & (F2FS_BLKSIZE - 1))
return -EINVAL;
- f2fs_balance_fs(F2FS_I_SB(inode));
+ ret = f2fs_convert_inline_inode(inode);
+ if (ret)
+ return ret;
- if (f2fs_has_inline_data(inode)) {
- ret = f2fs_convert_inline_inode(inode);
- if (ret)
- return ret;
- }
+ pg_start = offset >> PAGE_SHIFT;
+ pg_end = (offset + len) >> PAGE_SHIFT;
- pg_start = offset >> PAGE_CACHE_SHIFT;
- pg_end = (offset + len) >> PAGE_CACHE_SHIFT;
+ /* avoid gc operation during block exchange */
+ down_write(&F2FS_I(inode)->dio_rwsem[WRITE]);
+ down_write(&F2FS_I(inode)->i_mmap_sem);
/* write out all dirty pages from offset */
ret = filemap_write_and_wait_range(inode->i_mapping, offset, LLONG_MAX);
if (ret)
- return ret;
+ goto out_unlock;
truncate_pagecache(inode, offset);
ret = f2fs_do_collapse(inode, pg_start, pg_end);
if (ret)
- return ret;
+ goto out_unlock;
/* write out all moved pages, if possible */
filemap_write_and_wait_range(inode->i_mapping, offset, LLONG_MAX);
@@ -989,7 +1220,53 @@ static int f2fs_collapse_range(struct inode *inode, loff_t offset, loff_t len)
ret = truncate_blocks(inode, new_size, true);
if (!ret)
- i_size_write(inode, new_size);
+ f2fs_i_size_write(inode, new_size);
+out_unlock:
+ up_write(&F2FS_I(inode)->i_mmap_sem);
+ up_write(&F2FS_I(inode)->dio_rwsem[WRITE]);
+ return ret;
+}
+
+static int f2fs_do_zero_range(struct dnode_of_data *dn, pgoff_t start,
+ pgoff_t end)
+{
+ struct f2fs_sb_info *sbi = F2FS_I_SB(dn->inode);
+ pgoff_t index = start;
+ unsigned int ofs_in_node = dn->ofs_in_node;
+ blkcnt_t count = 0;
+ int ret;
+
+ for (; index < end; index++, dn->ofs_in_node++) {
+ if (datablock_addr(dn->inode, dn->node_page,
+ dn->ofs_in_node) == NULL_ADDR)
+ count++;
+ }
+
+ dn->ofs_in_node = ofs_in_node;
+ ret = reserve_new_blocks(dn, count);
+ if (ret)
+ return ret;
+
+ dn->ofs_in_node = ofs_in_node;
+ for (index = start; index < end; index++, dn->ofs_in_node++) {
+ dn->data_blkaddr = datablock_addr(dn->inode,
+ dn->node_page, dn->ofs_in_node);
+ /*
+ * reserve_new_blocks will not guarantee entire block
+ * allocation.
+ */
+ if (dn->data_blkaddr == NULL_ADDR) {
+ ret = -ENOSPC;
+ break;
+ }
+ if (dn->data_blkaddr != NEW_ADDR) {
+ invalidate_blocks(sbi, dn->data_blkaddr);
+ dn->data_blkaddr = NEW_ADDR;
+ set_data_blkaddr(dn);
+ }
+ }
+
+ f2fs_update_extent_cache_range(dn, start, 0, index - start);
return ret;
}
@@ -1008,80 +1285,70 @@ static int f2fs_zero_range(struct inode *inode, loff_t offset, loff_t len,
if (ret)
return ret;
- f2fs_balance_fs(sbi);
-
- if (f2fs_has_inline_data(inode)) {
- ret = f2fs_convert_inline_inode(inode);
- if (ret)
- return ret;
- }
+ ret = f2fs_convert_inline_inode(inode);
+ if (ret)
+ return ret;
+ down_write(&F2FS_I(inode)->i_mmap_sem);
ret = filemap_write_and_wait_range(mapping, offset, offset + len - 1);
if (ret)
- return ret;
+ goto out_sem;
truncate_pagecache_range(inode, offset, offset + len - 1);
- pg_start = ((unsigned long long) offset) >> PAGE_CACHE_SHIFT;
- pg_end = ((unsigned long long) offset + len) >> PAGE_CACHE_SHIFT;
+ pg_start = ((unsigned long long) offset) >> PAGE_SHIFT;
+ pg_end = ((unsigned long long) offset + len) >> PAGE_SHIFT;
- off_start = offset & (PAGE_CACHE_SIZE - 1);
- off_end = (offset + len) & (PAGE_CACHE_SIZE - 1);
+ off_start = offset & (PAGE_SIZE - 1);
+ off_end = (offset + len) & (PAGE_SIZE - 1);
if (pg_start == pg_end) {
ret = fill_zero(inode, pg_start, off_start,
off_end - off_start);
if (ret)
- return ret;
+ goto out_sem;
- if (offset + len > new_size)
- new_size = offset + len;
new_size = max_t(loff_t, new_size, offset + len);
} else {
if (off_start) {
ret = fill_zero(inode, pg_start++, off_start,
- PAGE_CACHE_SIZE - off_start);
+ PAGE_SIZE - off_start);
if (ret)
- return ret;
+ goto out_sem;
new_size = max_t(loff_t, new_size,
- (loff_t)pg_start << PAGE_CACHE_SHIFT);
+ (loff_t)pg_start << PAGE_SHIFT);
}
- for (index = pg_start; index < pg_end; index++) {
+ for (index = pg_start; index < pg_end;) {
struct dnode_of_data dn;
- struct page *ipage;
+ unsigned int end_offset;
+ pgoff_t end;
f2fs_lock_op(sbi);
- ipage = get_node_page(sbi, inode->i_ino);
- if (IS_ERR(ipage)) {
- ret = PTR_ERR(ipage);
- f2fs_unlock_op(sbi);
- goto out;
- }
-
- set_new_dnode(&dn, inode, ipage, NULL, 0);
- ret = f2fs_reserve_block(&dn, index);
+ set_new_dnode(&dn, inode, NULL, NULL, 0);
+ ret = get_dnode_of_data(&dn, index, ALLOC_NODE);
if (ret) {
f2fs_unlock_op(sbi);
goto out;
}
- if (dn.data_blkaddr != NEW_ADDR) {
- invalidate_blocks(sbi, dn.data_blkaddr);
+ end_offset = ADDRS_PER_PAGE(dn.node_page, inode);
+ end = min(pg_end, end_offset - dn.ofs_in_node + index);
- dn.data_blkaddr = NEW_ADDR;
- set_data_blkaddr(&dn);
-
- dn.data_blkaddr = NULL_ADDR;
- f2fs_update_extent_cache(&dn);
- }
+ ret = f2fs_do_zero_range(&dn, index, end);
f2fs_put_dnode(&dn);
f2fs_unlock_op(sbi);
+ f2fs_balance_fs(sbi, dn.node_changed);
+
+ if (ret)
+ goto out;
+
+ index = end;
new_size = max_t(loff_t, new_size,
- (loff_t)(index + 1) << PAGE_CACHE_SHIFT);
+ (loff_t)index << PAGE_SHIFT);
}
if (off_end) {
@@ -1094,11 +1361,14 @@ static int f2fs_zero_range(struct inode *inode, loff_t offset, loff_t len,
}
out:
- if (!(mode & FALLOC_FL_KEEP_SIZE) && i_size_read(inode) < new_size) {
- i_size_write(inode, new_size);
- mark_inode_dirty(inode);
- update_inode_page(inode);
+ if (new_size > i_size_read(inode)) {
+ if (mode & FALLOC_FL_KEEP_SIZE)
+ file_set_keep_isize(inode);
+ else
+ f2fs_i_size_write(inode, new_size);
}
+out_sem:
+ up_write(&F2FS_I(inode)->i_mmap_sem);
return ret;
}
@@ -1106,13 +1376,14 @@ out:
static int f2fs_insert_range(struct inode *inode, loff_t offset, loff_t len)
{
struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
- pgoff_t pg_start, pg_end, delta, nrpages, idx;
+ pgoff_t nr, pg_start, pg_end, delta, idx;
loff_t new_size;
int ret = 0;
new_size = i_size_read(inode) + len;
- if (new_size > inode->i_sb->s_maxbytes)
- return -EFBIG;
+ ret = inode_newsize_ok(inode, new_size);
+ if (ret)
+ return ret;
if (offset >= i_size_read(inode))
return -EINVAL;
@@ -1121,36 +1392,44 @@ static int f2fs_insert_range(struct inode *inode, loff_t offset, loff_t len)
if (offset & (F2FS_BLKSIZE - 1) || len & (F2FS_BLKSIZE - 1))
return -EINVAL;
- f2fs_balance_fs(sbi);
+ ret = f2fs_convert_inline_inode(inode);
+ if (ret)
+ return ret;
- if (f2fs_has_inline_data(inode)) {
- ret = f2fs_convert_inline_inode(inode);
- if (ret)
- return ret;
- }
+ f2fs_balance_fs(sbi, true);
+
+ /* avoid gc operation during block exchange */
+ down_write(&F2FS_I(inode)->dio_rwsem[WRITE]);
+ down_write(&F2FS_I(inode)->i_mmap_sem);
ret = truncate_blocks(inode, i_size_read(inode), true);
if (ret)
- return ret;
+ goto out;
/* write out all dirty pages from offset */
ret = filemap_write_and_wait_range(inode->i_mapping, offset, LLONG_MAX);
if (ret)
- return ret;
+ goto out;
truncate_pagecache(inode, offset);
- pg_start = offset >> PAGE_CACHE_SHIFT;
- pg_end = (offset + len) >> PAGE_CACHE_SHIFT;
+ pg_start = offset >> PAGE_SHIFT;
+ pg_end = (offset + len) >> PAGE_SHIFT;
delta = pg_end - pg_start;
- nrpages = (i_size_read(inode) + PAGE_SIZE - 1) / PAGE_SIZE;
+ idx = (i_size_read(inode) + PAGE_SIZE - 1) / PAGE_SIZE;
+
+ while (!ret && idx > pg_start) {
+ nr = idx - pg_start;
+ if (nr > delta)
+ nr = delta;
+ idx -= nr;
- for (idx = nrpages - 1; idx >= pg_start && idx != -1; idx--) {
f2fs_lock_op(sbi);
- ret = __exchange_data_block(inode, idx, idx + delta, false);
+ f2fs_drop_extent_tree(inode);
+
+ ret = __exchange_data_block(inode, inode, idx,
+ idx + delta, nr, false);
f2fs_unlock_op(sbi);
- if (ret)
- break;
}
/* write out all moved pages, if possible */
@@ -1158,7 +1437,10 @@ static int f2fs_insert_range(struct inode *inode, loff_t offset, loff_t len)
truncate_pagecache(inode, offset);
if (!ret)
- i_size_write(inode, new_size);
+ f2fs_i_size_write(inode, new_size);
+out:
+ up_write(&F2FS_I(inode)->i_mmap_sem);
+ up_write(&F2FS_I(inode)->dio_rwsem[WRITE]);
return ret;
}
@@ -1166,62 +1448,55 @@ static int expand_inode_data(struct inode *inode, loff_t offset,
loff_t len, int mode)
{
struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
- pgoff_t index, pg_start, pg_end;
+ struct f2fs_map_blocks map = { .m_next_pgofs = NULL,
+ .m_next_extent = NULL, .m_seg_type = NO_CHECK_TYPE };
+ pgoff_t pg_end;
loff_t new_size = i_size_read(inode);
- loff_t off_start, off_end;
- int ret = 0;
+ loff_t off_end;
+ int err;
- f2fs_balance_fs(sbi);
+ err = inode_newsize_ok(inode, (len + offset));
+ if (err)
+ return err;
- ret = inode_newsize_ok(inode, (len + offset));
- if (ret)
- return ret;
+ err = f2fs_convert_inline_inode(inode);
+ if (err)
+ return err;
- if (f2fs_has_inline_data(inode)) {
- ret = f2fs_convert_inline_inode(inode);
- if (ret)
- return ret;
- }
+ f2fs_balance_fs(sbi, true);
- pg_start = ((unsigned long long) offset) >> PAGE_CACHE_SHIFT;
- pg_end = ((unsigned long long) offset + len) >> PAGE_CACHE_SHIFT;
+ pg_end = ((unsigned long long)offset + len) >> PAGE_SHIFT;
+ off_end = (offset + len) & (PAGE_SIZE - 1);
- off_start = offset & (PAGE_CACHE_SIZE - 1);
- off_end = (offset + len) & (PAGE_CACHE_SIZE - 1);
+ map.m_lblk = ((unsigned long long)offset) >> PAGE_SHIFT;
+ map.m_len = pg_end - map.m_lblk;
+ if (off_end)
+ map.m_len++;
- f2fs_lock_op(sbi);
+ err = f2fs_map_blocks(inode, &map, 1, F2FS_GET_BLOCK_PRE_AIO);
+ if (err) {
+ pgoff_t last_off;
- for (index = pg_start; index <= pg_end; index++) {
- struct dnode_of_data dn;
+ if (!map.m_len)
+ return err;
- if (index == pg_end && !off_end)
- goto noalloc;
+ last_off = map.m_lblk + map.m_len - 1;
- set_new_dnode(&dn, inode, NULL, NULL, 0);
- ret = f2fs_reserve_block(&dn, index);
- if (ret)
- break;
-noalloc:
- if (pg_start == pg_end)
- new_size = offset + len;
- else if (index == pg_start && off_start)
- new_size = (loff_t)(index + 1) << PAGE_CACHE_SHIFT;
- else if (index == pg_end)
- new_size = ((loff_t)index << PAGE_CACHE_SHIFT) +
- off_end;
- else
- new_size += PAGE_CACHE_SIZE;
+ /* update new size to the failed position */
+ new_size = (last_off == pg_end) ? offset + len:
+ (loff_t)(last_off + 1) << PAGE_SHIFT;
+ } else {
+ new_size = ((loff_t)pg_end << PAGE_SHIFT) + off_end;
}
- if (!(mode & FALLOC_FL_KEEP_SIZE) &&
- i_size_read(inode) < new_size) {
- i_size_write(inode, new_size);
- mark_inode_dirty(inode);
- update_inode_page(inode);
+ if (new_size > i_size_read(inode)) {
+ if (mode & FALLOC_FL_KEEP_SIZE)
+ file_set_keep_isize(inode);
+ else
+ f2fs_i_size_write(inode, new_size);
}
- f2fs_unlock_op(sbi);
- return ret;
+ return err;
}
static long f2fs_fallocate(struct file *file, int mode,
@@ -1230,6 +1505,9 @@ static long f2fs_fallocate(struct file *file, int mode,
struct inode *inode = file_inode(file);
long ret = 0;
+ if (unlikely(f2fs_cp_error(F2FS_I_SB(inode))))
+ return -EIO;
+
/* f2fs only support ->fallocate for regular file */
if (!S_ISREG(inode->i_mode))
return -EINVAL;
@@ -1243,7 +1521,7 @@ static long f2fs_fallocate(struct file *file, int mode,
FALLOC_FL_INSERT_RANGE))
return -EOPNOTSUPP;
- mutex_lock(&inode->i_mutex);
+ inode_lock(inode);
if (mode & FALLOC_FL_PUNCH_HOLE) {
if (offset >= inode->i_size)
@@ -1261,12 +1539,13 @@ static long f2fs_fallocate(struct file *file, int mode,
}
if (!ret) {
- inode->i_mtime = inode->i_ctime = CURRENT_TIME;
- mark_inode_dirty(inode);
+ inode->i_mtime = inode->i_ctime = current_time(inode);
+ f2fs_mark_inode_dirty_sync(inode, false);
+ f2fs_update_time(F2FS_I_SB(inode), REQ_TIME);
}
out:
- mutex_unlock(&inode->i_mutex);
+ inode_unlock(inode);
trace_f2fs_fallocate(inode, mode, offset, len, ret);
return ret;
@@ -1274,28 +1553,41 @@ out:
static int f2fs_release_file(struct inode *inode, struct file *filp)
{
+ /*
+ * f2fs_relase_file is called at every close calls. So we should
+ * not drop any inmemory pages by close called by other process.
+ */
+ if (!(filp->f_mode & FMODE_WRITE) ||
+ atomic_read(&inode->i_writecount) != 1)
+ return 0;
+
/* some remained atomic pages should discarded */
if (f2fs_is_atomic_file(inode))
- commit_inmem_pages(inode, true);
+ drop_inmem_pages(inode);
if (f2fs_is_volatile_file(inode)) {
- set_inode_flag(F2FS_I(inode), FI_DROP_CACHE);
+ clear_inode_flag(inode, FI_VOLATILE_FILE);
+ stat_dec_volatile_write(inode);
+ set_inode_flag(inode, FI_DROP_CACHE);
filemap_fdatawrite(inode->i_mapping);
- clear_inode_flag(F2FS_I(inode), FI_DROP_CACHE);
+ clear_inode_flag(inode, FI_DROP_CACHE);
}
return 0;
}
-#define F2FS_REG_FLMASK (~(FS_DIRSYNC_FL | FS_TOPDIR_FL))
-#define F2FS_OTHER_FLMASK (FS_NODUMP_FL | FS_NOATIME_FL)
-
-static inline __u32 f2fs_mask_flags(umode_t mode, __u32 flags)
+static int f2fs_file_flush(struct file *file, fl_owner_t id)
{
- if (S_ISDIR(mode))
- return flags;
- else if (S_ISREG(mode))
- return flags & F2FS_REG_FLMASK;
- else
- return flags & F2FS_OTHER_FLMASK;
+ struct inode *inode = file_inode(file);
+
+ /*
+ * If the process doing a transaction is crashed, we should do
+ * roll-back. Otherwise, other reader/write can see corrupted database
+ * until all the writers close its file. Since this should be done
+ * before dropping file lock, it needs to do in ->flush.
+ */
+ if (f2fs_is_atomic_file(inode) &&
+ F2FS_I(inode)->inmem_task == current)
+ drop_inmem_pages(inode);
+ return 0;
}
static int f2fs_ioc_getflags(struct file *filp, unsigned long arg)
@@ -1310,47 +1602,48 @@ static int f2fs_ioc_setflags(struct file *filp, unsigned long arg)
{
struct inode *inode = file_inode(filp);
struct f2fs_inode_info *fi = F2FS_I(inode);
- unsigned int flags = fi->i_flags & FS_FL_USER_VISIBLE;
+ unsigned int flags;
unsigned int oldflags;
int ret;
+ if (!inode_owner_or_capable(inode))
+ return -EACCES;
+
+ if (get_user(flags, (int __user *)arg))
+ return -EFAULT;
+
ret = mnt_want_write_file(filp);
if (ret)
return ret;
- if (!inode_owner_or_capable(inode)) {
- ret = -EACCES;
- goto out;
- }
+ inode_lock(inode);
- if (get_user(flags, (int __user *)arg)) {
- ret = -EFAULT;
- goto out;
+ /* Is it quota file? Do not allow user to mess with it */
+ if (IS_NOQUOTA(inode)) {
+ ret = -EPERM;
+ goto unlock_out;
}
flags = f2fs_mask_flags(inode->i_mode, flags);
- mutex_lock(&inode->i_mutex);
-
oldflags = fi->i_flags;
if ((flags ^ oldflags) & (FS_APPEND_FL | FS_IMMUTABLE_FL)) {
if (!capable(CAP_LINUX_IMMUTABLE)) {
- mutex_unlock(&inode->i_mutex);
ret = -EPERM;
- goto out;
+ goto unlock_out;
}
}
flags = flags & FS_FL_USER_MODIFIABLE;
flags |= oldflags & ~FS_FL_USER_MODIFIABLE;
fi->i_flags = flags;
- mutex_unlock(&inode->i_mutex);
+ inode->i_ctime = current_time(inode);
f2fs_set_inode_flags(inode);
- inode->i_ctime = CURRENT_TIME;
- mark_inode_dirty(inode);
-out:
+ f2fs_mark_inode_dirty_sync(inode, false);
+unlock_out:
+ inode_unlock(inode);
mnt_drop_write_file(filp);
return ret;
}
@@ -1370,17 +1663,47 @@ static int f2fs_ioc_start_atomic_write(struct file *filp)
if (!inode_owner_or_capable(inode))
return -EACCES;
- f2fs_balance_fs(F2FS_I_SB(inode));
+ if (!S_ISREG(inode->i_mode))
+ return -EINVAL;
+
+ ret = mnt_want_write_file(filp);
+ if (ret)
+ return ret;
+
+ inode_lock(inode);
if (f2fs_is_atomic_file(inode))
- return 0;
+ goto out;
ret = f2fs_convert_inline_inode(inode);
if (ret)
- return ret;
+ goto out;
- set_inode_flag(F2FS_I(inode), FI_ATOMIC_FILE);
- return 0;
+ set_inode_flag(inode, FI_ATOMIC_FILE);
+ set_inode_flag(inode, FI_HOT_DATA);
+ f2fs_update_time(F2FS_I_SB(inode), REQ_TIME);
+
+ if (!get_dirty_pages(inode))
+ goto inc_stat;
+
+ f2fs_msg(F2FS_I_SB(inode)->sb, KERN_WARNING,
+ "Unexpected flush for atomic writes: ino=%lu, npages=%u",
+ inode->i_ino, get_dirty_pages(inode));
+ ret = filemap_write_and_wait_range(inode->i_mapping, 0, LLONG_MAX);
+ if (ret) {
+ clear_inode_flag(inode, FI_ATOMIC_FILE);
+ clear_inode_flag(inode, FI_HOT_DATA);
+ goto out;
+ }
+
+inc_stat:
+ F2FS_I(inode)->inmem_task = current;
+ stat_inc_atomic_write(inode);
+ stat_update_max_atomic_write(inode);
+out:
+ inode_unlock(inode);
+ mnt_drop_write_file(filp);
+ return ret;
}
static int f2fs_ioc_commit_atomic_write(struct file *filp)
@@ -1391,22 +1714,34 @@ static int f2fs_ioc_commit_atomic_write(struct file *filp)
if (!inode_owner_or_capable(inode))
return -EACCES;
- if (f2fs_is_volatile_file(inode))
- return 0;
-
ret = mnt_want_write_file(filp);
if (ret)
return ret;
+ inode_lock(inode);
+
+ down_write(&F2FS_I(inode)->dio_rwsem[WRITE]);
+
+ if (f2fs_is_volatile_file(inode))
+ goto err_out;
+
if (f2fs_is_atomic_file(inode)) {
- clear_inode_flag(F2FS_I(inode), FI_ATOMIC_FILE);
- ret = commit_inmem_pages(inode, false);
+ ret = commit_inmem_pages(inode);
if (ret)
goto err_out;
- }
- ret = f2fs_sync_file(filp, 0, LLONG_MAX, 0);
+ ret = f2fs_do_sync_file(filp, 0, LLONG_MAX, 0, true);
+ if (!ret) {
+ clear_inode_flag(inode, FI_ATOMIC_FILE);
+ clear_inode_flag(inode, FI_HOT_DATA);
+ stat_dec_atomic_write(inode);
+ }
+ } else {
+ ret = f2fs_do_sync_file(filp, 0, LLONG_MAX, 1, false);
+ }
err_out:
+ up_write(&F2FS_I(inode)->dio_rwsem[WRITE]);
+ inode_unlock(inode);
mnt_drop_write_file(filp);
return ret;
}
@@ -1419,31 +1754,60 @@ static int f2fs_ioc_start_volatile_write(struct file *filp)
if (!inode_owner_or_capable(inode))
return -EACCES;
+ if (!S_ISREG(inode->i_mode))
+ return -EINVAL;
+
+ ret = mnt_want_write_file(filp);
+ if (ret)
+ return ret;
+
+ inode_lock(inode);
+
if (f2fs_is_volatile_file(inode))
- return 0;
+ goto out;
ret = f2fs_convert_inline_inode(inode);
if (ret)
- return ret;
+ goto out;
- set_inode_flag(F2FS_I(inode), FI_VOLATILE_FILE);
- return 0;
+ stat_inc_volatile_write(inode);
+ stat_update_max_volatile_write(inode);
+
+ set_inode_flag(inode, FI_VOLATILE_FILE);
+ f2fs_update_time(F2FS_I_SB(inode), REQ_TIME);
+out:
+ inode_unlock(inode);
+ mnt_drop_write_file(filp);
+ return ret;
}
static int f2fs_ioc_release_volatile_write(struct file *filp)
{
struct inode *inode = file_inode(filp);
+ int ret;
if (!inode_owner_or_capable(inode))
return -EACCES;
+ ret = mnt_want_write_file(filp);
+ if (ret)
+ return ret;
+
+ inode_lock(inode);
+
if (!f2fs_is_volatile_file(inode))
- return 0;
+ goto out;
- if (!f2fs_is_first_block_written(inode))
- return truncate_partial_data_page(inode, 0, true);
+ if (!f2fs_is_first_block_written(inode)) {
+ ret = truncate_partial_data_page(inode, 0, true);
+ goto out;
+ }
- return punch_hole(inode, 0, F2FS_BLKSIZE);
+ ret = punch_hole(inode, 0, F2FS_BLKSIZE);
+out:
+ inode_unlock(inode);
+ mnt_drop_write_file(filp);
+ return ret;
}
static int f2fs_ioc_abort_volatile_write(struct file *filp)
@@ -1458,13 +1822,20 @@ static int f2fs_ioc_abort_volatile_write(struct file *filp)
if (ret)
return ret;
- f2fs_balance_fs(F2FS_I_SB(inode));
+ inode_lock(inode);
+
+ if (f2fs_is_atomic_file(inode))
+ drop_inmem_pages(inode);
+ if (f2fs_is_volatile_file(inode)) {
+ clear_inode_flag(inode, FI_VOLATILE_FILE);
+ stat_dec_volatile_write(inode);
+ ret = f2fs_do_sync_file(filp, 0, LLONG_MAX, 0, true);
+ }
- clear_inode_flag(F2FS_I(inode), FI_ATOMIC_FILE);
- clear_inode_flag(F2FS_I(inode), FI_VOLATILE_FILE);
- commit_inmem_pages(inode, true);
+ inode_unlock(inode);
mnt_drop_write_file(filp);
+ f2fs_update_time(F2FS_I_SB(inode), REQ_TIME);
return ret;
}
@@ -1474,6 +1845,7 @@ static int f2fs_ioc_shutdown(struct file *filp, unsigned long arg)
struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
struct super_block *sb = sbi->sb;
__u32 in;
+ int ret;
if (!capable(CAP_SYS_ADMIN))
return -EPERM;
@@ -1481,30 +1853,51 @@ static int f2fs_ioc_shutdown(struct file *filp, unsigned long arg)
if (get_user(in, (__u32 __user *)arg))
return -EFAULT;
+ ret = mnt_want_write_file(filp);
+ if (ret)
+ return ret;
+
switch (in) {
case F2FS_GOING_DOWN_FULLSYNC:
sb = freeze_bdev(sb->s_bdev);
- if (sb && !IS_ERR(sb)) {
- f2fs_stop_checkpoint(sbi);
+ if (IS_ERR(sb)) {
+ ret = PTR_ERR(sb);
+ goto out;
+ }
+ if (sb) {
+ f2fs_stop_checkpoint(sbi, false);
thaw_bdev(sb->s_bdev, sb);
}
break;
case F2FS_GOING_DOWN_METASYNC:
/* do checkpoint only */
- f2fs_sync_fs(sb, 1);
- f2fs_stop_checkpoint(sbi);
+ ret = f2fs_sync_fs(sb, 1);
+ if (ret)
+ goto out;
+ f2fs_stop_checkpoint(sbi, false);
break;
case F2FS_GOING_DOWN_NOSYNC:
- f2fs_stop_checkpoint(sbi);
+ f2fs_stop_checkpoint(sbi, false);
break;
case F2FS_GOING_DOWN_METAFLUSH:
- sync_meta_pages(sbi, META, LONG_MAX);
- f2fs_stop_checkpoint(sbi);
+ sync_meta_pages(sbi, META, LONG_MAX, FS_META_IO);
+ f2fs_stop_checkpoint(sbi, false);
break;
default:
- return -EINVAL;
+ ret = -EINVAL;
+ goto out;
}
- return 0;
+
+ stop_gc_thread(sbi);
+ stop_discard_thread(sbi);
+
+ drop_discard_cmd(sbi);
+ clear_opt(sbi, DISCARD);
+
+ f2fs_update_time(sbi, REQ_TIME);
+out:
+ mnt_drop_write_file(filp);
+ return ret;
}
static int f2fs_ioc_fitrim(struct file *filp, unsigned long arg)
@@ -1525,15 +1918,21 @@ static int f2fs_ioc_fitrim(struct file *filp, unsigned long arg)
sizeof(range)))
return -EFAULT;
+ ret = mnt_want_write_file(filp);
+ if (ret)
+ return ret;
+
range.minlen = max((unsigned int)range.minlen,
q->limits.discard_granularity);
ret = f2fs_trim_fs(F2FS_SB(sb), &range);
+ mnt_drop_write_file(filp);
if (ret < 0)
return ret;
if (copy_to_user((struct fstrim_range __user *)arg, &range,
sizeof(range)))
return -EFAULT;
+ f2fs_update_time(F2FS_I_SB(inode), REQ_TIME);
return 0;
}
@@ -1549,51 +1948,21 @@ static bool uuid_is_nonzero(__u8 u[16])
static int f2fs_ioc_set_encryption_policy(struct file *filp, unsigned long arg)
{
-#ifdef CONFIG_F2FS_FS_ENCRYPTION
- struct f2fs_encryption_policy policy;
struct inode *inode = file_inode(filp);
- int err;
-
- if (copy_from_user(&policy, (struct f2fs_encryption_policy __user *)arg,
- sizeof(policy)))
- return -EFAULT;
-
- err = mnt_want_write_file(filp);
- if (err)
- return err;
-
- mutex_lock(&inode->i_mutex);
- err = f2fs_process_policy(&policy, inode);
-
- mutex_unlock(&inode->i_mutex);
+ if (!f2fs_sb_has_encrypt(inode->i_sb))
+ return -EOPNOTSUPP;
- mnt_drop_write_file(filp);
+ f2fs_update_time(F2FS_I_SB(inode), REQ_TIME);
- return err;
-#else
- return -EOPNOTSUPP;
-#endif
+ return fscrypt_ioctl_set_policy(filp, (const void __user *)arg);
}
static int f2fs_ioc_get_encryption_policy(struct file *filp, unsigned long arg)
{
-#ifdef CONFIG_F2FS_FS_ENCRYPTION
- struct f2fs_encryption_policy policy;
- struct inode *inode = file_inode(filp);
- int err;
-
- err = f2fs_get_policy(inode, &policy);
- if (err)
- return err;
-
- if (copy_to_user((struct f2fs_encryption_policy __user *)arg, &policy,
- sizeof(policy)))
- return -EFAULT;
- return 0;
-#else
- return -EOPNOTSUPP;
-#endif
+ if (!f2fs_sb_has_encrypt(file_inode(filp)->i_sb))
+ return -EOPNOTSUPP;
+ return fscrypt_ioctl_get_policy(filp, (void __user *)arg);
}
static int f2fs_ioc_get_encryption_pwsalt(struct file *filp, unsigned long arg)
@@ -1602,32 +1971,35 @@ static int f2fs_ioc_get_encryption_pwsalt(struct file *filp, unsigned long arg)
struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
int err;
- if (!f2fs_sb_has_crypto(inode->i_sb))
+ if (!f2fs_sb_has_encrypt(inode->i_sb))
return -EOPNOTSUPP;
- if (uuid_is_nonzero(sbi->raw_super->encrypt_pw_salt))
- goto got_it;
-
err = mnt_want_write_file(filp);
if (err)
return err;
+ down_write(&sbi->sb_lock);
+
+ if (uuid_is_nonzero(sbi->raw_super->encrypt_pw_salt))
+ goto got_it;
+
/* update superblock with uuid */
generate_random_uuid(sbi->raw_super->encrypt_pw_salt);
err = f2fs_commit_super(sbi, false);
-
- mnt_drop_write_file(filp);
if (err) {
/* undo new data */
memset(sbi->raw_super->encrypt_pw_salt, 0, 16);
- return err;
+ goto out_err;
}
got_it:
if (copy_to_user((__u8 __user *)arg, sbi->raw_super->encrypt_pw_salt,
16))
- return -EFAULT;
- return 0;
+ err = -EFAULT;
+out_err:
+ up_write(&sbi->sb_lock);
+ mnt_drop_write_file(filp);
+ return err;
}
static int f2fs_ioc_gc(struct file *filp, unsigned long arg)
@@ -1635,6 +2007,7 @@ static int f2fs_ioc_gc(struct file *filp, unsigned long arg)
struct inode *inode = file_inode(filp);
struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
__u32 sync;
+ int ret;
if (!capable(CAP_SYS_ADMIN))
return -EPERM;
@@ -1645,39 +2018,630 @@ static int f2fs_ioc_gc(struct file *filp, unsigned long arg)
if (f2fs_readonly(sbi->sb))
return -EROFS;
+ ret = mnt_want_write_file(filp);
+ if (ret)
+ return ret;
+
if (!sync) {
- if (!mutex_trylock(&sbi->gc_mutex))
- return -EBUSY;
+ if (!mutex_trylock(&sbi->gc_mutex)) {
+ ret = -EBUSY;
+ goto out;
+ }
} else {
mutex_lock(&sbi->gc_mutex);
}
- return f2fs_gc(sbi, sync);
+ ret = f2fs_gc(sbi, sync, true, NULL_SEGNO);
+out:
+ mnt_drop_write_file(filp);
+ return ret;
+}
+
+static int f2fs_ioc_gc_range(struct file *filp, unsigned long arg)
+{
+ struct inode *inode = file_inode(filp);
+ struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
+ struct f2fs_gc_range range;
+ u64 end;
+ int ret;
+
+ if (!capable(CAP_SYS_ADMIN))
+ return -EPERM;
+
+ if (copy_from_user(&range, (struct f2fs_gc_range __user *)arg,
+ sizeof(range)))
+ return -EFAULT;
+
+ if (f2fs_readonly(sbi->sb))
+ return -EROFS;
+
+ ret = mnt_want_write_file(filp);
+ if (ret)
+ return ret;
+
+ end = range.start + range.len;
+ if (range.start < MAIN_BLKADDR(sbi) || end >= MAX_BLKADDR(sbi)) {
+ ret = -EINVAL;
+ goto out;
+ }
+do_more:
+ if (!range.sync) {
+ if (!mutex_trylock(&sbi->gc_mutex)) {
+ ret = -EBUSY;
+ goto out;
+ }
+ } else {
+ mutex_lock(&sbi->gc_mutex);
+ }
+
+ ret = f2fs_gc(sbi, range.sync, true, GET_SEGNO(sbi, range.start));
+ range.start += sbi->blocks_per_seg;
+ if (range.start <= end)
+ goto do_more;
+out:
+ mnt_drop_write_file(filp);
+ return ret;
}
static int f2fs_ioc_write_checkpoint(struct file *filp, unsigned long arg)
{
struct inode *inode = file_inode(filp);
struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
- struct cp_control cpc;
+ int ret;
+
+ if (!capable(CAP_SYS_ADMIN))
+ return -EPERM;
+
+ if (f2fs_readonly(sbi->sb))
+ return -EROFS;
+
+ ret = mnt_want_write_file(filp);
+ if (ret)
+ return ret;
+
+ ret = f2fs_sync_fs(sbi->sb, 1);
+
+ mnt_drop_write_file(filp);
+ return ret;
+}
+
+static int f2fs_defragment_range(struct f2fs_sb_info *sbi,
+ struct file *filp,
+ struct f2fs_defragment *range)
+{
+ struct inode *inode = file_inode(filp);
+ struct f2fs_map_blocks map = { .m_next_extent = NULL,
+ .m_seg_type = NO_CHECK_TYPE };
+ struct extent_info ei = {0,0,0};
+ pgoff_t pg_start, pg_end, next_pgofs;
+ unsigned int blk_per_seg = sbi->blocks_per_seg;
+ unsigned int total = 0, sec_num;
+ block_t blk_end = 0;
+ bool fragmented = false;
+ int err;
+
+ /* if in-place-update policy is enabled, don't waste time here */
+ if (should_update_inplace(inode, NULL))
+ return -EINVAL;
+
+ pg_start = range->start >> PAGE_SHIFT;
+ pg_end = (range->start + range->len) >> PAGE_SHIFT;
+
+ f2fs_balance_fs(sbi, true);
+
+ inode_lock(inode);
+
+ /* writeback all dirty pages in the range */
+ err = filemap_write_and_wait_range(inode->i_mapping, range->start,
+ range->start + range->len - 1);
+ if (err)
+ goto out;
+
+ /*
+ * lookup mapping info in extent cache, skip defragmenting if physical
+ * block addresses are continuous.
+ */
+ if (f2fs_lookup_extent_cache(inode, pg_start, &ei)) {
+ if (ei.fofs + ei.len >= pg_end)
+ goto out;
+ }
+
+ map.m_lblk = pg_start;
+ map.m_next_pgofs = &next_pgofs;
+
+ /*
+ * lookup mapping info in dnode page cache, skip defragmenting if all
+ * physical block addresses are continuous even if there are hole(s)
+ * in logical blocks.
+ */
+ while (map.m_lblk < pg_end) {
+ map.m_len = pg_end - map.m_lblk;
+ err = f2fs_map_blocks(inode, &map, 0, F2FS_GET_BLOCK_DEFAULT);
+ if (err)
+ goto out;
+
+ if (!(map.m_flags & F2FS_MAP_FLAGS)) {
+ map.m_lblk = next_pgofs;
+ continue;
+ }
+
+ if (blk_end && blk_end != map.m_pblk)
+ fragmented = true;
+
+ /* record total count of block that we're going to move */
+ total += map.m_len;
+
+ blk_end = map.m_pblk + map.m_len;
+
+ map.m_lblk += map.m_len;
+ }
+
+ if (!fragmented)
+ goto out;
+
+ sec_num = (total + BLKS_PER_SEC(sbi) - 1) / BLKS_PER_SEC(sbi);
+
+ /*
+ * make sure there are enough free section for LFS allocation, this can
+ * avoid defragment running in SSR mode when free section are allocated
+ * intensively
+ */
+ if (has_not_enough_free_secs(sbi, 0, sec_num)) {
+ err = -EAGAIN;
+ goto out;
+ }
+
+ map.m_lblk = pg_start;
+ map.m_len = pg_end - pg_start;
+ total = 0;
+
+ while (map.m_lblk < pg_end) {
+ pgoff_t idx;
+ int cnt = 0;
+
+do_map:
+ map.m_len = pg_end - map.m_lblk;
+ err = f2fs_map_blocks(inode, &map, 0, F2FS_GET_BLOCK_DEFAULT);
+ if (err)
+ goto clear_out;
+
+ if (!(map.m_flags & F2FS_MAP_FLAGS)) {
+ map.m_lblk = next_pgofs;
+ continue;
+ }
+
+ set_inode_flag(inode, FI_DO_DEFRAG);
+
+ idx = map.m_lblk;
+ while (idx < map.m_lblk + map.m_len && cnt < blk_per_seg) {
+ struct page *page;
+
+ page = get_lock_data_page(inode, idx, true);
+ if (IS_ERR(page)) {
+ err = PTR_ERR(page);
+ goto clear_out;
+ }
+
+ set_page_dirty(page);
+ f2fs_put_page(page, 1);
+
+ idx++;
+ cnt++;
+ total++;
+ }
+
+ map.m_lblk = idx;
+
+ if (idx < pg_end && cnt < blk_per_seg)
+ goto do_map;
+
+ clear_inode_flag(inode, FI_DO_DEFRAG);
+
+ err = filemap_fdatawrite(inode->i_mapping);
+ if (err)
+ goto out;
+ }
+clear_out:
+ clear_inode_flag(inode, FI_DO_DEFRAG);
+out:
+ inode_unlock(inode);
+ if (!err)
+ range->len = (u64)total << PAGE_SHIFT;
+ return err;
+}
+
+static int f2fs_ioc_defragment(struct file *filp, unsigned long arg)
+{
+ struct inode *inode = file_inode(filp);
+ struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
+ struct f2fs_defragment range;
+ int err;
if (!capable(CAP_SYS_ADMIN))
return -EPERM;
+ if (!S_ISREG(inode->i_mode) || f2fs_is_atomic_file(inode))
+ return -EINVAL;
+
if (f2fs_readonly(sbi->sb))
return -EROFS;
- cpc.reason = __get_cp_reason(sbi);
+ if (copy_from_user(&range, (struct f2fs_defragment __user *)arg,
+ sizeof(range)))
+ return -EFAULT;
+
+ /* verify alignment of offset & size */
+ if (range.start & (F2FS_BLKSIZE - 1) || range.len & (F2FS_BLKSIZE - 1))
+ return -EINVAL;
+
+ if (unlikely((range.start + range.len) >> PAGE_SHIFT >
+ sbi->max_file_blocks))
+ return -EINVAL;
+
+ err = mnt_want_write_file(filp);
+ if (err)
+ return err;
+
+ err = f2fs_defragment_range(sbi, filp, &range);
+ mnt_drop_write_file(filp);
+
+ f2fs_update_time(sbi, REQ_TIME);
+ if (err < 0)
+ return err;
- mutex_lock(&sbi->gc_mutex);
- write_checkpoint(sbi, &cpc);
- mutex_unlock(&sbi->gc_mutex);
+ if (copy_to_user((struct f2fs_defragment __user *)arg, &range,
+ sizeof(range)))
+ return -EFAULT;
return 0;
}
+static int f2fs_move_file_range(struct file *file_in, loff_t pos_in,
+ struct file *file_out, loff_t pos_out, size_t len)
+{
+ struct inode *src = file_inode(file_in);
+ struct inode *dst = file_inode(file_out);
+ struct f2fs_sb_info *sbi = F2FS_I_SB(src);
+ size_t olen = len, dst_max_i_size = 0;
+ size_t dst_osize;
+ int ret;
+
+ if (file_in->f_path.mnt != file_out->f_path.mnt ||
+ src->i_sb != dst->i_sb)
+ return -EXDEV;
+
+ if (unlikely(f2fs_readonly(src->i_sb)))
+ return -EROFS;
+
+ if (!S_ISREG(src->i_mode) || !S_ISREG(dst->i_mode))
+ return -EINVAL;
+
+ if (f2fs_encrypted_inode(src) || f2fs_encrypted_inode(dst))
+ return -EOPNOTSUPP;
+
+ if (src == dst) {
+ if (pos_in == pos_out)
+ return 0;
+ if (pos_out > pos_in && pos_out < pos_in + len)
+ return -EINVAL;
+ }
+
+ inode_lock(src);
+ down_write(&F2FS_I(src)->dio_rwsem[WRITE]);
+ if (src != dst) {
+ ret = -EBUSY;
+ if (!inode_trylock(dst))
+ goto out;
+ if (!down_write_trylock(&F2FS_I(dst)->dio_rwsem[WRITE])) {
+ inode_unlock(dst);
+ goto out;
+ }
+ }
+
+ ret = -EINVAL;
+ if (pos_in + len > src->i_size || pos_in + len < pos_in)
+ goto out_unlock;
+ if (len == 0)
+ olen = len = src->i_size - pos_in;
+ if (pos_in + len == src->i_size)
+ len = ALIGN(src->i_size, F2FS_BLKSIZE) - pos_in;
+ if (len == 0) {
+ ret = 0;
+ goto out_unlock;
+ }
+
+ dst_osize = dst->i_size;
+ if (pos_out + olen > dst->i_size)
+ dst_max_i_size = pos_out + olen;
+
+ /* verify the end result is block aligned */
+ if (!IS_ALIGNED(pos_in, F2FS_BLKSIZE) ||
+ !IS_ALIGNED(pos_in + len, F2FS_BLKSIZE) ||
+ !IS_ALIGNED(pos_out, F2FS_BLKSIZE))
+ goto out_unlock;
+
+ ret = f2fs_convert_inline_inode(src);
+ if (ret)
+ goto out_unlock;
+
+ ret = f2fs_convert_inline_inode(dst);
+ if (ret)
+ goto out_unlock;
+
+ /* write out all dirty pages from offset */
+ ret = filemap_write_and_wait_range(src->i_mapping,
+ pos_in, pos_in + len);
+ if (ret)
+ goto out_unlock;
+
+ ret = filemap_write_and_wait_range(dst->i_mapping,
+ pos_out, pos_out + len);
+ if (ret)
+ goto out_unlock;
+
+ f2fs_balance_fs(sbi, true);
+ f2fs_lock_op(sbi);
+ ret = __exchange_data_block(src, dst, pos_in >> F2FS_BLKSIZE_BITS,
+ pos_out >> F2FS_BLKSIZE_BITS,
+ len >> F2FS_BLKSIZE_BITS, false);
+
+ if (!ret) {
+ if (dst_max_i_size)
+ f2fs_i_size_write(dst, dst_max_i_size);
+ else if (dst_osize != dst->i_size)
+ f2fs_i_size_write(dst, dst_osize);
+ }
+ f2fs_unlock_op(sbi);
+out_unlock:
+ if (src != dst) {
+ up_write(&F2FS_I(dst)->dio_rwsem[WRITE]);
+ inode_unlock(dst);
+ }
+out:
+ up_write(&F2FS_I(src)->dio_rwsem[WRITE]);
+ inode_unlock(src);
+ return ret;
+}
+
+static int f2fs_ioc_move_range(struct file *filp, unsigned long arg)
+{
+ struct f2fs_move_range range;
+ struct fd dst;
+ int err;
+
+ if (!(filp->f_mode & FMODE_READ) ||
+ !(filp->f_mode & FMODE_WRITE))
+ return -EBADF;
+
+ if (copy_from_user(&range, (struct f2fs_move_range __user *)arg,
+ sizeof(range)))
+ return -EFAULT;
+
+ dst = fdget(range.dst_fd);
+ if (!dst.file)
+ return -EBADF;
+
+ if (!(dst.file->f_mode & FMODE_WRITE)) {
+ err = -EBADF;
+ goto err_out;
+ }
+
+ err = mnt_want_write_file(filp);
+ if (err)
+ goto err_out;
+
+ err = f2fs_move_file_range(filp, range.pos_in, dst.file,
+ range.pos_out, range.len);
+
+ mnt_drop_write_file(filp);
+ if (err)
+ goto err_out;
+
+ if (copy_to_user((struct f2fs_move_range __user *)arg,
+ &range, sizeof(range)))
+ err = -EFAULT;
+err_out:
+ fdput(dst);
+ return err;
+}
+
+static int f2fs_ioc_flush_device(struct file *filp, unsigned long arg)
+{
+ struct inode *inode = file_inode(filp);
+ struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
+ struct sit_info *sm = SIT_I(sbi);
+ unsigned int start_segno = 0, end_segno = 0;
+ unsigned int dev_start_segno = 0, dev_end_segno = 0;
+ struct f2fs_flush_device range;
+ int ret;
+
+ if (!capable(CAP_SYS_ADMIN))
+ return -EPERM;
+
+ if (f2fs_readonly(sbi->sb))
+ return -EROFS;
+
+ if (copy_from_user(&range, (struct f2fs_flush_device __user *)arg,
+ sizeof(range)))
+ return -EFAULT;
+
+ if (sbi->s_ndevs <= 1 || sbi->s_ndevs - 1 <= range.dev_num ||
+ sbi->segs_per_sec != 1) {
+ f2fs_msg(sbi->sb, KERN_WARNING,
+ "Can't flush %u in %d for segs_per_sec %u != 1\n",
+ range.dev_num, sbi->s_ndevs,
+ sbi->segs_per_sec);
+ return -EINVAL;
+ }
+
+ ret = mnt_want_write_file(filp);
+ if (ret)
+ return ret;
+
+ if (range.dev_num != 0)
+ dev_start_segno = GET_SEGNO(sbi, FDEV(range.dev_num).start_blk);
+ dev_end_segno = GET_SEGNO(sbi, FDEV(range.dev_num).end_blk);
+
+ start_segno = sm->last_victim[FLUSH_DEVICE];
+ if (start_segno < dev_start_segno || start_segno >= dev_end_segno)
+ start_segno = dev_start_segno;
+ end_segno = min(start_segno + range.segments, dev_end_segno);
+
+ while (start_segno < end_segno) {
+ if (!mutex_trylock(&sbi->gc_mutex)) {
+ ret = -EBUSY;
+ goto out;
+ }
+ sm->last_victim[GC_CB] = end_segno + 1;
+ sm->last_victim[GC_GREEDY] = end_segno + 1;
+ sm->last_victim[ALLOC_NEXT] = end_segno + 1;
+ ret = f2fs_gc(sbi, true, true, start_segno);
+ if (ret == -EAGAIN)
+ ret = 0;
+ else if (ret < 0)
+ break;
+ start_segno++;
+ }
+out:
+ mnt_drop_write_file(filp);
+ return ret;
+}
+
+static int f2fs_ioc_get_features(struct file *filp, unsigned long arg)
+{
+ struct inode *inode = file_inode(filp);
+ u32 sb_feature = le32_to_cpu(F2FS_I_SB(inode)->raw_super->feature);
+
+ /* Must validate to set it with SQLite behavior in Android. */
+ sb_feature |= F2FS_FEATURE_ATOMIC_WRITE;
+
+ return put_user(sb_feature, (u32 __user *)arg);
+}
+
+int f2fs_pin_file_control(struct inode *inode, bool inc)
+{
+ struct f2fs_inode_info *fi = F2FS_I(inode);
+ struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
+
+ /* Use i_gc_failures for normal file as a risk signal. */
+ if (inc)
+ f2fs_i_gc_failures_write(inode, fi->i_gc_failures + 1);
+
+ if (fi->i_gc_failures > sbi->gc_pin_file_threshold) {
+ f2fs_msg(sbi->sb, KERN_WARNING,
+ "%s: Enable GC = ino %lx after %x GC trials\n",
+ __func__, inode->i_ino, fi->i_gc_failures);
+ clear_inode_flag(inode, FI_PIN_FILE);
+ return -EAGAIN;
+ }
+ return 0;
+}
+
+static int f2fs_ioc_set_pin_file(struct file *filp, unsigned long arg)
+{
+ struct inode *inode = file_inode(filp);
+ __u32 pin;
+ int ret = 0;
+
+ if (!inode_owner_or_capable(inode))
+ return -EACCES;
+
+ if (get_user(pin, (__u32 __user *)arg))
+ return -EFAULT;
+
+ if (!S_ISREG(inode->i_mode))
+ return -EINVAL;
+
+ if (f2fs_readonly(F2FS_I_SB(inode)->sb))
+ return -EROFS;
+
+ ret = mnt_want_write_file(filp);
+ if (ret)
+ return ret;
+
+ inode_lock(inode);
+
+ if (should_update_outplace(inode, NULL)) {
+ ret = -EINVAL;
+ goto out;
+ }
+
+ if (!pin) {
+ clear_inode_flag(inode, FI_PIN_FILE);
+ F2FS_I(inode)->i_gc_failures = 1;
+ goto done;
+ }
+
+ if (f2fs_pin_file_control(inode, false)) {
+ ret = -EAGAIN;
+ goto out;
+ }
+ ret = f2fs_convert_inline_inode(inode);
+ if (ret)
+ goto out;
+
+ set_inode_flag(inode, FI_PIN_FILE);
+ ret = F2FS_I(inode)->i_gc_failures;
+done:
+ f2fs_update_time(F2FS_I_SB(inode), REQ_TIME);
+out:
+ inode_unlock(inode);
+ mnt_drop_write_file(filp);
+ return ret;
+}
+
+static int f2fs_ioc_get_pin_file(struct file *filp, unsigned long arg)
+{
+ struct inode *inode = file_inode(filp);
+ __u32 pin = 0;
+
+ if (is_inode_flag_set(inode, FI_PIN_FILE))
+ pin = F2FS_I(inode)->i_gc_failures;
+ return put_user(pin, (u32 __user *)arg);
+}
+
+int f2fs_precache_extents(struct inode *inode)
+{
+ struct f2fs_inode_info *fi = F2FS_I(inode);
+ struct f2fs_map_blocks map;
+ pgoff_t m_next_extent;
+ loff_t end;
+ int err;
+
+ if (is_inode_flag_set(inode, FI_NO_EXTENT))
+ return -EOPNOTSUPP;
+
+ map.m_lblk = 0;
+ map.m_next_pgofs = NULL;
+ map.m_next_extent = &m_next_extent;
+ map.m_seg_type = NO_CHECK_TYPE;
+ end = F2FS_I_SB(inode)->max_file_blocks;
+
+ while (map.m_lblk < end) {
+ map.m_len = end - map.m_lblk;
+
+ down_write(&fi->dio_rwsem[WRITE]);
+ err = f2fs_map_blocks(inode, &map, 0, F2FS_GET_BLOCK_PRECACHE);
+ up_write(&fi->dio_rwsem[WRITE]);
+ if (err)
+ return err;
+
+ map.m_lblk = m_next_extent;
+ }
+
+ return err;
+}
+
+static int f2fs_ioc_precache_extents(struct file *filp, unsigned long arg)
+{
+ return f2fs_precache_extents(file_inode(filp));
+}
+
long f2fs_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
{
+ if (unlikely(f2fs_cp_error(F2FS_I_SB(file_inode(filp)))))
+ return -EIO;
+
switch (cmd) {
case F2FS_IOC_GETFLAGS:
return f2fs_ioc_getflags(filp, arg);
@@ -1707,8 +2671,24 @@ long f2fs_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
return f2fs_ioc_get_encryption_pwsalt(filp, arg);
case F2FS_IOC_GARBAGE_COLLECT:
return f2fs_ioc_gc(filp, arg);
+ case F2FS_IOC_GARBAGE_COLLECT_RANGE:
+ return f2fs_ioc_gc_range(filp, arg);
case F2FS_IOC_WRITE_CHECKPOINT:
return f2fs_ioc_write_checkpoint(filp, arg);
+ case F2FS_IOC_DEFRAGMENT:
+ return f2fs_ioc_defragment(filp, arg);
+ case F2FS_IOC_MOVE_RANGE:
+ return f2fs_ioc_move_range(filp, arg);
+ case F2FS_IOC_FLUSH_DEVICE:
+ return f2fs_ioc_flush_device(filp, arg);
+ case F2FS_IOC_GET_FEATURES:
+ return f2fs_ioc_get_features(filp, arg);
+ case F2FS_IOC_GET_PIN_FILE:
+ return f2fs_ioc_get_pin_file(filp, arg);
+ case F2FS_IOC_SET_PIN_FILE:
+ return f2fs_ioc_set_pin_file(filp, arg);
+ case F2FS_IOC_PRECACHE_EXTENTS:
+ return f2fs_ioc_precache_extents(filp, arg);
default:
return -ENOTTY;
}
@@ -1716,14 +2696,75 @@ long f2fs_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
static ssize_t f2fs_file_write_iter(struct kiocb *iocb, struct iov_iter *from)
{
- struct inode *inode = file_inode(iocb->ki_filp);
+ struct file *file = iocb->ki_filp;
+ struct inode *inode = file_inode(file);
+ struct blk_plug plug;
+ ssize_t ret;
- if (f2fs_encrypted_inode(inode) &&
- !f2fs_has_encryption_key(inode) &&
- f2fs_get_encryption_info(inode))
- return -EACCES;
+ if (unlikely(f2fs_cp_error(F2FS_I_SB(inode))))
+ return -EIO;
+
+ if ((iocb->ki_flags & IOCB_NOWAIT) && !(iocb->ki_flags & IOCB_DIRECT))
+ return -EINVAL;
+
+ if (!inode_trylock(inode)) {
+ if (iocb->ki_flags & IOCB_NOWAIT)
+ return -EAGAIN;
+ inode_lock(inode);
+ }
+
+ ret = generic_write_checks(iocb, from);
+ if (ret > 0) {
+ bool preallocated = false;
+ size_t target_size = 0;
+ int err;
+
+ if (iov_iter_fault_in_readable(from, iov_iter_count(from)))
+ set_inode_flag(inode, FI_NO_PREALLOC);
+
+ if ((iocb->ki_flags & IOCB_NOWAIT) &&
+ (iocb->ki_flags & IOCB_DIRECT)) {
+ if (!f2fs_overwrite_io(inode, iocb->ki_pos,
+ iov_iter_count(from)) ||
+ f2fs_has_inline_data(inode) ||
+ f2fs_force_buffered_io(inode, WRITE)) {
+ inode_unlock(inode);
+ return -EAGAIN;
+ }
+
+ } else {
+ preallocated = true;
+ target_size = iocb->ki_pos + iov_iter_count(from);
- return generic_file_write_iter(iocb, from);
+ err = f2fs_preallocate_blocks(iocb, from);
+ if (err) {
+ clear_inode_flag(inode, FI_NO_PREALLOC);
+ inode_unlock(inode);
+ return err;
+ }
+ }
+ blk_start_plug(&plug);
+ ret = __generic_file_write_iter(iocb, from);
+ blk_finish_plug(&plug);
+ clear_inode_flag(inode, FI_NO_PREALLOC);
+
+ /* if we couldn't write data, we should deallocate blocks. */
+ if (preallocated && i_size_read(inode) < target_size)
+ f2fs_truncate(inode);
+
+ if (ret > 0)
+ f2fs_update_iostat(F2FS_I_SB(inode), APP_WRITE_IO, ret);
+ }
+ inode_unlock(inode);
+
+ if (ret > 0) {
+ ssize_t err;
+
+ err = generic_write_sync(file, iocb->ki_pos - ret, ret);
+ if (err < 0)
+ ret = err;
+ }
+ return ret;
}
#ifdef CONFIG_COMPAT
@@ -1736,6 +2777,29 @@ long f2fs_compat_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
case F2FS_IOC32_SETFLAGS:
cmd = F2FS_IOC_SETFLAGS;
break;
+ case F2FS_IOC32_GETVERSION:
+ cmd = F2FS_IOC_GETVERSION;
+ break;
+ case F2FS_IOC_START_ATOMIC_WRITE:
+ case F2FS_IOC_COMMIT_ATOMIC_WRITE:
+ case F2FS_IOC_START_VOLATILE_WRITE:
+ case F2FS_IOC_RELEASE_VOLATILE_WRITE:
+ case F2FS_IOC_ABORT_VOLATILE_WRITE:
+ case F2FS_IOC_SHUTDOWN:
+ case F2FS_IOC_SET_ENCRYPTION_POLICY:
+ case F2FS_IOC_GET_ENCRYPTION_PWSALT:
+ case F2FS_IOC_GET_ENCRYPTION_POLICY:
+ case F2FS_IOC_GARBAGE_COLLECT:
+ case F2FS_IOC_GARBAGE_COLLECT_RANGE:
+ case F2FS_IOC_WRITE_CHECKPOINT:
+ case F2FS_IOC_DEFRAGMENT:
+ case F2FS_IOC_MOVE_RANGE:
+ case F2FS_IOC_FLUSH_DEVICE:
+ case F2FS_IOC_GET_FEATURES:
+ case F2FS_IOC_GET_PIN_FILE:
+ case F2FS_IOC_SET_PIN_FILE:
+ case F2FS_IOC_PRECACHE_EXTENTS:
+ break;
default:
return -ENOIOCTLCMD;
}
@@ -1750,6 +2814,7 @@ const struct file_operations f2fs_file_operations = {
.open = f2fs_file_open,
.release = f2fs_release_file,
.mmap = f2fs_file_mmap,
+ .flush = f2fs_file_flush,
.fsync = f2fs_sync_file,
.fallocate = f2fs_fallocate,
.unlocked_ioctl = f2fs_ioctl,
generated by cgit v1.2.3 (git 2.25.1) at 2025-10-23 16:08:09 +0000