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-rw-r--r--fs/ext2/Makefile2
-rw-r--r--fs/ext2/balloc.c22
-rw-r--r--fs/ext2/bitmap.c32
-rw-r--r--fs/ext2/dir.c6
-rw-r--r--fs/ext2/fsync.c2
-rw-r--r--fs/ext2/ialloc.c3
-rw-r--r--fs/ext2/super.c39
7 files changed, 46 insertions, 60 deletions
diff --git a/fs/ext2/Makefile b/fs/ext2/Makefile
index c5d02da73bc3..e0b2b43c1fdb 100644
--- a/fs/ext2/Makefile
+++ b/fs/ext2/Makefile
@@ -4,7 +4,7 @@
obj-$(CONFIG_EXT2_FS) += ext2.o
-ext2-y := balloc.o bitmap.o dir.o file.o fsync.o ialloc.o inode.o \
+ext2-y := balloc.o dir.o file.o fsync.o ialloc.o inode.o \
ioctl.o namei.o super.o symlink.o
ext2-$(CONFIG_EXT2_FS_XATTR) += xattr.o xattr_user.o xattr_trusted.o
diff --git a/fs/ext2/balloc.c b/fs/ext2/balloc.c
index 2c00953d4b0b..433a213a8bd9 100644
--- a/fs/ext2/balloc.c
+++ b/fs/ext2/balloc.c
@@ -521,6 +521,26 @@ io_error:
goto out_release;
}
+#ifdef EXT2FS_DEBUG
+
+static int nibblemap[] = {4, 3, 3, 2, 3, 2, 2, 1, 3, 2, 2, 1, 2, 1, 1, 0};
+
+unsigned long ext2_count_free (struct buffer_head * map, unsigned int numchars)
+{
+ unsigned int i;
+ unsigned long sum = 0;
+
+ if (!map)
+ return (0);
+ for (i = 0; i < numchars; i++)
+ sum += nibblemap[map->b_data[i] & 0xf] +
+ nibblemap[(map->b_data[i] >> 4) & 0xf];
+ return (sum);
+}
+
+#endif /* EXT2FS_DEBUG */
+
+/* Superblock must be locked */
unsigned long ext2_count_free_blocks (struct super_block * sb)
{
struct ext2_group_desc * desc;
@@ -530,7 +550,6 @@ unsigned long ext2_count_free_blocks (struct super_block * sb)
unsigned long bitmap_count, x;
struct ext2_super_block *es;
- lock_super (sb);
es = EXT2_SB(sb)->s_es;
desc_count = 0;
bitmap_count = 0;
@@ -554,7 +573,6 @@ unsigned long ext2_count_free_blocks (struct super_block * sb)
printk("ext2_count_free_blocks: stored = %lu, computed = %lu, %lu\n",
(long)le32_to_cpu(es->s_free_blocks_count),
desc_count, bitmap_count);
- unlock_super (sb);
return bitmap_count;
#else
for (i = 0; i < EXT2_SB(sb)->s_groups_count; i++) {
diff --git a/fs/ext2/bitmap.c b/fs/ext2/bitmap.c
deleted file mode 100644
index e9983a0dd396..000000000000
--- a/fs/ext2/bitmap.c
+++ /dev/null
@@ -1,32 +0,0 @@
-/*
- * linux/fs/ext2/bitmap.c
- *
- * Copyright (C) 1992, 1993, 1994, 1995
- * Remy Card (card@masi.ibp.fr)
- * Laboratoire MASI - Institut Blaise Pascal
- * Universite Pierre et Marie Curie (Paris VI)
- */
-
-#ifdef EXT2FS_DEBUG
-
-#include <linux/buffer_head.h>
-
-#include "ext2.h"
-
-static int nibblemap[] = {4, 3, 3, 2, 3, 2, 2, 1, 3, 2, 2, 1, 2, 1, 1, 0};
-
-unsigned long ext2_count_free (struct buffer_head * map, unsigned int numchars)
-{
- unsigned int i;
- unsigned long sum = 0;
-
- if (!map)
- return (0);
- for (i = 0; i < numchars; i++)
- sum += nibblemap[map->b_data[i] & 0xf] +
- nibblemap[(map->b_data[i] >> 4) & 0xf];
- return (sum);
-}
-
-#endif /* EXT2FS_DEBUG */
-
diff --git a/fs/ext2/dir.c b/fs/ext2/dir.c
index d672aa9f4061..92ea8265d7d5 100644
--- a/fs/ext2/dir.c
+++ b/fs/ext2/dir.c
@@ -159,8 +159,7 @@ fail:
static struct page * ext2_get_page(struct inode *dir, unsigned long n)
{
struct address_space *mapping = dir->i_mapping;
- struct page *page = read_cache_page(mapping, n,
- (filler_t*)mapping->a_ops->readpage, NULL);
+ struct page *page = read_mapping_page(mapping, n, NULL);
if (!IS_ERR(page)) {
wait_on_page_locked(page);
kmap(page);
@@ -400,8 +399,7 @@ ino_t ext2_inode_by_name(struct inode * dir, struct dentry *dentry)
de = ext2_find_entry (dir, dentry, &page);
if (de) {
res = le32_to_cpu(de->inode);
- kunmap(page);
- page_cache_release(page);
+ ext2_put_page(page);
}
return res;
}
diff --git a/fs/ext2/fsync.c b/fs/ext2/fsync.c
index c9c2e5ffa48e..7806b9e8155b 100644
--- a/fs/ext2/fsync.c
+++ b/fs/ext2/fsync.c
@@ -24,7 +24,7 @@
#include "ext2.h"
#include <linux/smp_lock.h>
-#include <linux/buffer_head.h> /* for fsync_inode_buffers() */
+#include <linux/buffer_head.h> /* for sync_mapping_buffers() */
/*
diff --git a/fs/ext2/ialloc.c b/fs/ext2/ialloc.c
index e52765219e16..308c252568c6 100644
--- a/fs/ext2/ialloc.c
+++ b/fs/ext2/ialloc.c
@@ -638,6 +638,7 @@ fail:
return ERR_PTR(err);
}
+/* Superblock must be locked */
unsigned long ext2_count_free_inodes (struct super_block * sb)
{
struct ext2_group_desc *desc;
@@ -649,7 +650,6 @@ unsigned long ext2_count_free_inodes (struct super_block * sb)
unsigned long bitmap_count = 0;
struct buffer_head *bitmap_bh = NULL;
- lock_super (sb);
es = EXT2_SB(sb)->s_es;
for (i = 0; i < EXT2_SB(sb)->s_groups_count; i++) {
unsigned x;
@@ -672,7 +672,6 @@ unsigned long ext2_count_free_inodes (struct super_block * sb)
printk("ext2_count_free_inodes: stored = %lu, computed = %lu, %lu\n",
percpu_counter_read(&EXT2_SB(sb)->s_freeinodes_counter),
desc_count, bitmap_count);
- unlock_super(sb);
return desc_count;
#else
for (i = 0; i < EXT2_SB(sb)->s_groups_count; i++) {
diff --git a/fs/ext2/super.c b/fs/ext2/super.c
index 7e30bae174ed..d4233b2e6436 100644
--- a/fs/ext2/super.c
+++ b/fs/ext2/super.c
@@ -39,7 +39,7 @@
static void ext2_sync_super(struct super_block *sb,
struct ext2_super_block *es);
static int ext2_remount (struct super_block * sb, int * flags, char * data);
-static int ext2_statfs (struct super_block * sb, struct kstatfs * buf);
+static int ext2_statfs (struct dentry * dentry, struct kstatfs * buf);
void ext2_error (struct super_block * sb, const char * function,
const char * fmt, ...)
@@ -834,9 +834,6 @@ static int ext2_fill_super(struct super_block *sb, void *data, int silent)
printk ("EXT2-fs: not enough memory\n");
goto failed_mount;
}
- percpu_counter_init(&sbi->s_freeblocks_counter);
- percpu_counter_init(&sbi->s_freeinodes_counter);
- percpu_counter_init(&sbi->s_dirs_counter);
bgl_lock_init(&sbi->s_blockgroup_lock);
sbi->s_debts = kmalloc(sbi->s_groups_count * sizeof(*sbi->s_debts),
GFP_KERNEL);
@@ -857,12 +854,18 @@ static int ext2_fill_super(struct super_block *sb, void *data, int silent)
}
if (!ext2_check_descriptors (sb)) {
printk ("EXT2-fs: group descriptors corrupted!\n");
- db_count = i;
goto failed_mount2;
}
sbi->s_gdb_count = db_count;
get_random_bytes(&sbi->s_next_generation, sizeof(u32));
spin_lock_init(&sbi->s_next_gen_lock);
+
+ percpu_counter_init(&sbi->s_freeblocks_counter,
+ ext2_count_free_blocks(sb));
+ percpu_counter_init(&sbi->s_freeinodes_counter,
+ ext2_count_free_inodes(sb));
+ percpu_counter_init(&sbi->s_dirs_counter,
+ ext2_count_dirs(sb));
/*
* set up enough so that it can read an inode
*/
@@ -874,24 +877,18 @@ static int ext2_fill_super(struct super_block *sb, void *data, int silent)
if (!sb->s_root) {
iput(root);
printk(KERN_ERR "EXT2-fs: get root inode failed\n");
- goto failed_mount2;
+ goto failed_mount3;
}
if (!S_ISDIR(root->i_mode) || !root->i_blocks || !root->i_size) {
dput(sb->s_root);
sb->s_root = NULL;
printk(KERN_ERR "EXT2-fs: corrupt root inode, run e2fsck\n");
- goto failed_mount2;
+ goto failed_mount3;
}
if (EXT2_HAS_COMPAT_FEATURE(sb, EXT3_FEATURE_COMPAT_HAS_JOURNAL))
ext2_warning(sb, __FUNCTION__,
"mounting ext3 filesystem as ext2");
ext2_setup_super (sb, es, sb->s_flags & MS_RDONLY);
- percpu_counter_mod(&sbi->s_freeblocks_counter,
- ext2_count_free_blocks(sb));
- percpu_counter_mod(&sbi->s_freeinodes_counter,
- ext2_count_free_inodes(sb));
- percpu_counter_mod(&sbi->s_dirs_counter,
- ext2_count_dirs(sb));
return 0;
cantfind_ext2:
@@ -899,7 +896,10 @@ cantfind_ext2:
printk("VFS: Can't find an ext2 filesystem on dev %s.\n",
sb->s_id);
goto failed_mount;
-
+failed_mount3:
+ percpu_counter_destroy(&sbi->s_freeblocks_counter);
+ percpu_counter_destroy(&sbi->s_freeinodes_counter);
+ percpu_counter_destroy(&sbi->s_dirs_counter);
failed_mount2:
for (i = 0; i < db_count; i++)
brelse(sbi->s_group_desc[i]);
@@ -1038,12 +1038,14 @@ restore_opts:
return err;
}
-static int ext2_statfs (struct super_block * sb, struct kstatfs * buf)
+static int ext2_statfs (struct dentry * dentry, struct kstatfs * buf)
{
+ struct super_block *sb = dentry->d_sb;
struct ext2_sb_info *sbi = EXT2_SB(sb);
unsigned long overhead;
int i;
+ lock_super(sb);
if (test_opt (sb, MINIX_DF))
overhead = 0;
else {
@@ -1084,13 +1086,14 @@ static int ext2_statfs (struct super_block * sb, struct kstatfs * buf)
buf->f_files = le32_to_cpu(sbi->s_es->s_inodes_count);
buf->f_ffree = ext2_count_free_inodes (sb);
buf->f_namelen = EXT2_NAME_LEN;
+ unlock_super(sb);
return 0;
}
-static struct super_block *ext2_get_sb(struct file_system_type *fs_type,
- int flags, const char *dev_name, void *data)
+static int ext2_get_sb(struct file_system_type *fs_type,
+ int flags, const char *dev_name, void *data, struct vfsmount *mnt)
{
- return get_sb_bdev(fs_type, flags, dev_name, data, ext2_fill_super);
+ return get_sb_bdev(fs_type, flags, dev_name, data, ext2_fill_super, mnt);
}
#ifdef CONFIG_QUOTA
generated by cgit v1.2.3 (git 2.25.1) at 2025-12-09 10:04:40 +0000