Merge android-4.4.163 (0ca3fca) into msm-4.4

* refs/heads/tmp-0ca3fca
  Linux 4.4.163
  x86/time: Correct the attribute on jiffies' definition
  l2tp: hold tunnel socket when handling control frames in l2tp_ip and l2tp_ip6
  cpuidle: Do not access cpuidle_devices when !CONFIG_CPU_IDLE
  x86/percpu: Fix this_cpu_read()
  sched/fair: Fix throttle_list starvation with low CFS quota
  Input: elan_i2c - add ACPI ID for Lenovo IdeaPad 330-15IGM
  USB: fix the usbfs flag sanitization for control transfers
  usb: gadget: storage: Fix Spectre v1 vulnerability
  cdc-acm: correct counting of UART states in serial state notification
  IB/ucm: Fix Spectre v1 vulnerability
  RDMA/ucma: Fix Spectre v1 vulnerability
  ptp: fix Spectre v1 vulnerability
  cachefiles: fix the race between cachefiles_bury_object() and rmdir(2)
  ahci: don't ignore result code of ahci_reset_controller()
  crypto: shash - Fix a sleep-in-atomic bug in shash_setkey_unaligned
  mremap: properly flush TLB before releasing the page
  rtnetlink: Disallow FDB configuration for non-Ethernet device
  vhost: Fix Spectre V1 vulnerability
  net: drop skb on failure in ip_check_defrag()
  sctp: fix race on sctp_id2asoc
  r8169: fix NAPI handling under high load
  net: stmmac: Fix stmmac_mdio_reset() when building stmmac as modules
  net: socket: fix a missing-check bug
  net: sched: gred: pass the right attribute to gred_change_table_def()
  net/ipv6: Fix index counter for unicast addresses in in6_dump_addrs
  ipv6/ndisc: Preserve IPv6 control buffer if protocol error handlers are called
  ipv6: mcast: fix a use-after-free in inet6_mc_check
  net: bridge: remove ipv6 zero address check in mcast queries
  bridge: do not add port to router list when receives query with source 0.0.0.0
  perf tools: Disable parallelism for 'make clean'
  mtd: spi-nor: Add support for is25wp series chips
  fs/fat/fatent.c: add cond_resched() to fat_count_free_clusters()
  ARM: dts: imx53-qsb: disable 1.2GHz OPP
  MIPS: DEC: Fix an int-handler.S CPU_DADDI_WORKAROUNDS regression
  igb: Remove superfluous reset to PHY and page 0 selection
  MIPS: microMIPS: Fix decoding of swsp16 instruction
  scsi: aacraid: Fix typo in blink status
  bonding: avoid defaulting hard_header_len to ETH_HLEN on slave removal
  PM / devfreq: tegra: fix error return code in tegra_devfreq_probe()
  ASoC: spear: fix error return code in spdif_in_probe()
  spi: xlp: fix error return code in xlp_spi_probe()
  spi/bcm63xx: fix error return code in bcm63xx_spi_probe()
  MIPS: Handle non word sized instructions when examining frame
  spi/bcm63xx-hspi: fix error return code in bcm63xx_hsspi_probe()
  usb: dwc3: omap: fix error return code in dwc3_omap_probe()
  usb: ehci-omap: fix error return code in ehci_hcd_omap_probe()
  usb: imx21-hcd: fix error return code in imx21_probe()
  gpio: msic: fix error return code in platform_msic_gpio_probe()
  sparc64: Fix exception handling in UltraSPARC-III memcpy.
  gpu: host1x: fix error return code in host1x_probe()
  sparc64 mm: Fix more TSB sizing issues
  video: fbdev: pxa3xx_gcu: fix error return code in pxa3xx_gcu_probe()
  tty: serial: sprd: fix error return code in sprd_probe()
  l2tp: hold socket before dropping lock in l2tp_ip{, 6}_recv()
  brcmfmac: Fix glom_skb leak in brcmf_sdiod_recv_chain
  gro: Allow tunnel stacking in the case of FOU/GUE
  vti6: flush x-netns xfrm cache when vti interface is removed
  ALSA: timer: Fix zero-division by continue of uninitialized instance
  ixgbe: Correct X550EM_x revision check
  ixgbe: fix RSS limit for X550
  net/mlx5e: Correctly handle RSS indirection table when changing number of channels
  net/mlx5e: Fix LRO modify
  ixgbevf: Fix handling of NAPI budget when multiple queues are enabled per vector
  fuse: Dont call set_page_dirty_lock() for ITER_BVEC pages for async_dio
  drm/nouveau/fbcon: fix oops without fbdev emulation
  bpf: generally move prog destruction to RCU deferral
  usb-storage: fix bogus hardware error messages for ATA pass-thru devices
  sch_red: update backlog as well
  sparc/pci: Refactor dev_archdata initialization into pci_init_dev_archdata
  scsi: Add STARGET_CREATED_REMOVE state to scsi_target_state
  xfrm: Clear sk_dst_cache when applying per-socket policy.
  arm64: Fix potential race with hardware DBM in ptep_set_access_flags()
  CIFS: handle guest access errors to Windows shares
  ASoC: wm8940: Enable cache usage to fix crashes on resume
  ASoC: ak4613: Enable cache usage to fix crashes on resume
  MIPS: Fix FCSR Cause bit handling for correct SIGFPE issue
  usbvision: revert commit 588afcc1
  perf/core: Don't leak event in the syscall error path
  aacraid: Start adapter after updating number of MSIX vectors
  x86/PCI: Mark Broadwell-EP Home Agent 1 as having non-compliant BARs
  tpm: fix: return rc when devm_add_action() fails
  thermal: allow u8500-thermal driver to be a module
  thermal: allow spear-thermal driver to be a module
  btrfs: don't create or leak aliased root while cleaning up orphans
  sched/cgroup: Fix cgroup entity load tracking tear-down
  um: Avoid longjmp/setjmp symbol clashes with libpthread.a
  ipv6: orphan skbs in reassembly unit
  net/mlx4_en: Resolve dividing by zero in 32-bit system
  af_iucv: Move sockaddr length checks to before accessing sa_family in bind and connect handlers
  radix-tree: fix radix_tree_iter_retry() for tagged iterators.
  x86/mm/pat: Prevent hang during boot when mapping pages
  ARM: dts: apq8064: add ahci ports-implemented mask
  tracing: Skip more functions when doing stack tracing of events
  ser_gigaset: use container_of() instead of detour
  net: drop write-only stack variable
  ipv6: suppress sparse warnings in IP6_ECN_set_ce()
  KEYS: put keyring if install_session_keyring_to_cred() fails
  net: cxgb3_main: fix a missing-check bug
  perf/ring_buffer: Prevent concurent ring buffer access
  smsc95xx: Check for Wake-on-LAN modes
  smsc75xx: Check for Wake-on-LAN modes
  r8152: Check for supported Wake-on-LAN Modes
  sr9800: Check for supported Wake-on-LAN modes
  lan78xx: Check for supported Wake-on-LAN modes
  ax88179_178a: Check for supported Wake-on-LAN modes
  asix: Check for supported Wake-on-LAN modes
  pxa168fb: prepare the clock
  Bluetooth: SMP: fix crash in unpairing
  mac80211_hwsim: do not omit multicast announce of first added radio
  xfrm: validate template mode
  ARM: 8799/1: mm: fix pci_ioremap_io() offset check
  cfg80211: reg: Init wiphy_idx in regulatory_hint_core()
  mac80211: Always report TX status
  xfrm6: call kfree_skb when skb is toobig
  xfrm: Validate address prefix lengths in the xfrm selector.
  BACKPORT: xfrm: Allow Output Mark to be Updated Using UPDSA
  ANDROID: sdcardfs: Add option to drop unused dentries
  f2fs: guarantee journalled quota data by checkpoint
  f2fs: cleanup dirty pages if recover failed
  f2fs: fix data corruption issue with hardware encryption
  f2fs: fix to recover inode->i_flags of inode block during POR
  f2fs: spread f2fs_set_inode_flags()
  f2fs: fix to spread clear_cold_data()
  Revert "f2fs: fix to clear PG_checked flag in set_page_dirty()"
  f2fs: account read IOs and use IO counts for is_idle
  f2fs: fix to account IO correctly for cgroup writeback
  f2fs: fix to account IO correctly
  f2fs: remove request_list check in is_idle()
  f2fs: allow to mount, if quota is failed
  f2fs: update REQ_TIME in f2fs_cross_rename()
  f2fs: do not update REQ_TIME in case of error conditions
  f2fs: remove unneeded disable_nat_bits()
  f2fs: remove unused sbi->trigger_ssr_threshold
  f2fs: shrink sbi->sb_lock coverage in set_file_temperature()
  f2fs: fix to recover cold bit of inode block during POR
  f2fs: submit cached bio to avoid endless PageWriteback
  f2fs: checkpoint disabling
  f2fs: clear PageError on the read path
  f2fs: allow out-place-update for direct IO in LFS mode
  f2fs: refactor ->page_mkwrite() flow
  Revert: "f2fs: check last page index in cached bio to decide submission"
  f2fs: support superblock checksum
  f2fs: add to account skip count of background GC
  f2fs: add to account meta IO
  f2fs: keep lazytime on remount
  f2fs: fix missing up_read
  f2fs: return correct errno in f2fs_gc
  f2fs: avoid f2fs_bug_on if f2fs_get_meta_page_nofail got EIO
  f2fs: mark inode dirty explicitly in recover_inode()
  f2fs: fix to recover inode's crtime during POR
  f2fs: fix to recover inode's i_gc_failures during POR
  f2fs: fix to recover inode's i_flags during POR
  f2fs: fix to recover inode's project id during POR
  f2fs: update i_size after DIO completion
  f2fs: report ENOENT correctly in f2fs_rename
  f2fs: fix remount problem of option io_bits
  f2fs: fix to recover inode's uid/gid during POR
  f2fs: avoid infinite loop in f2fs_alloc_nid
  f2fs: add new idle interval timing for discard and gc paths
  f2fs: split IO error injection according to RW
  f2fs: add SPDX license identifiers
  f2fs: surround fault_injection related option parsing using CONFIG_F2FS_FAULT_INJECTION
  f2fs: avoid sleeping under spin_lock
  f2fs: plug readahead IO in readdir()
  f2fs: fix to do sanity check with current segment number
  f2fs: fix memory leak of percpu counter in fill_super()
  f2fs: fix memory leak of write_io in fill_super()
  f2fs: cache NULL when both default_acl and acl are NULL
  f2fs: fix to flush all dirty inodes recovered in readonly fs
  f2fs: report error if quota off error during umount
  f2fs: submit bio after shutdown
  f2fs: avoid wrong decrypted data from disk
  Revert "f2fs: use printk_ratelimited for f2fs_msg"
  f2fs: fix unnecessary periodic wakeup of discard thread when dev is busy
  f2fs: fix to avoid NULL pointer dereference on se->discard_map
  f2fs: add additional sanity check in f2fs_acl_from_disk()
  Revert "BACKPORT, FROMLIST: fscrypt: add Speck128/256 support"
  Build fix for 076c36fce1ea0.
  Revert "BACKPORT, FROMGIT: crypto: speck - add support for the Speck block cipher"
  Revert "FROMGIT: crypto: speck - export common helpers"
  Revert "BACKPORT, FROMGIT: crypto: arm/speck - add NEON-accelerated implementation of Speck-XTS"
  Revert "BACKPORT, FROMGIT: crypto: speck - add test vectors for Speck128-XTS"
  Revert "BACKPORT, FROMGIT: crypto: speck - add test vectors for Speck64-XTS"
  Revert "BACKPORT, FROMLIST: crypto: arm64/speck - add NEON-accelerated implementation of Speck-XTS"
  Revert "fscrypt: add Speck128/256 support"
  UPSTREAM: loop: Add LOOP_SET_BLOCK_SIZE in compat ioctl
  BACKPORT: block/loop: set hw_sectors
  UPSTREAM: loop: add ioctl for changing logical block size

Conflicts:
	fs/ext4/crypto.c
	fs/ext4/ext4.h

Change-Id: I8cb2f70b27906879f8e8fdd90e67f438e39701b8
Signed-off-by: Srinivasarao P <spathi@codeaurora.org>

1 files changed, 62 insertions, 39 deletions

diff --git a/fs/f2fs/file.c b/fs/f2fs/file.c
index 8e381b6385e3..3c61f9619be1 100644
--- a/fs/f2fs/file.c
+++ b/fs/f2fs/file.c
@@ -1,12 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * fs/f2fs/file.c
  *
  * Copyright (c) 2012 Samsung Electronics Co., Ltd.
  *             http://www.samsung.com/
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
  */
 #include <linux/fs.h>
 #include <linux/f2fs_fs.h>
@@ -53,7 +50,7 @@ static int f2fs_vm_page_mkwrite(struct vm_area_struct *vma,
 	struct page *page = vmf->page;
 	struct inode *inode = file_inode(vma->vm_file);
 	struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
-	struct dnode_of_data dn;
+	struct dnode_of_data dn = { .node_changed = false };
 	int err;
 
 	if (unlikely(f2fs_cp_error(sbi))) {
@@ -65,19 +62,6 @@ static int f2fs_vm_page_mkwrite(struct vm_area_struct *vma,
 
 	f2fs_bug_on(sbi, f2fs_has_inline_data(inode));
 
-	/* block allocation */
-	f2fs_lock_op(sbi);
-	set_new_dnode(&dn, inode, NULL, NULL, 0);
-	err = f2fs_reserve_block(&dn, page->index);
-	if (err) {
-		f2fs_unlock_op(sbi);
-		goto out;
-	}
-	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);
@@ -89,11 +73,28 @@ static int f2fs_vm_page_mkwrite(struct vm_area_struct *vma,
 		goto out_sem;
 	}
 
+	/* block allocation */
+	__do_map_lock(sbi, F2FS_GET_BLOCK_PRE_AIO, true);
+	set_new_dnode(&dn, inode, NULL, NULL, 0);
+	err = f2fs_get_block(&dn, page->index);
+	f2fs_put_dnode(&dn);
+	__do_map_lock(sbi, F2FS_GET_BLOCK_PRE_AIO, false);
+	if (err) {
+		unlock_page(page);
+		goto out_sem;
+	}
+
+	/* fill the page */
+	f2fs_wait_on_page_writeback(page, DATA, false);
+
+	/* wait for GCed page writeback via META_MAPPING */
+	f2fs_wait_on_block_writeback(inode, dn.data_blkaddr);
+
 	/*
 	 * check to see if the page is mapped already (no holes)
 	 */
 	if (PageMappedToDisk(page))
-		goto mapped;
+		goto out_sem;
 
 	/* page is wholly or partially inside EOF */
 	if (((loff_t)(page->index + 1) << PAGE_SHIFT) >
@@ -108,21 +109,15 @@ static int f2fs_vm_page_mkwrite(struct vm_area_struct *vma,
 		SetPageUptodate(page);
 
 	f2fs_update_iostat(sbi, APP_MAPPED_IO, F2FS_BLKSIZE);
+	f2fs_update_time(sbi, REQ_TIME);
 
 	trace_f2fs_vm_page_mkwrite(page, DATA);
-mapped:
-	/* fill the page */
-	f2fs_wait_on_page_writeback(page, DATA, false);
-
-	/* wait for GCed page writeback via META_MAPPING */
-	if (f2fs_post_read_required(inode))
-		f2fs_wait_on_block_writeback(sbi, dn.data_blkaddr);
-
 out_sem:
 	up_read(&F2FS_I(inode)->i_mmap_sem);
-out:
+
+	f2fs_balance_fs(sbi, dn.node_changed);
+
 	sb_end_pagefault(inode->i_sb);
-	f2fs_update_time(sbi, REQ_TIME);
 err:
 	return block_page_mkwrite_return(err);
 }
@@ -218,7 +213,8 @@ static int f2fs_do_sync_file(struct file *file, loff_t start, loff_t end,
 	};
 	unsigned int seq_id = 0;
 
-	if (unlikely(f2fs_readonly(inode->i_sb)))
+	if (unlikely(f2fs_readonly(inode->i_sb) ||
+				is_sbi_flag_set(sbi, SBI_CP_DISABLED)))
 		return 0;
 
 	trace_f2fs_sync_file_enter(inode);
@@ -593,7 +589,8 @@ truncate_out:
 	return 0;
 }
 
-int f2fs_truncate_blocks(struct inode *inode, u64 from, bool lock)
+int f2fs_truncate_blocks(struct inode *inode, u64 from, bool lock,
+							bool buf_write)
 {
 	struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
 	struct dnode_of_data dn;
@@ -601,6 +598,7 @@ int f2fs_truncate_blocks(struct inode *inode, u64 from, bool lock)
 	int count = 0, err = 0;
 	struct page *ipage;
 	bool truncate_page = false;
+	int flag = buf_write ? F2FS_GET_BLOCK_PRE_AIO : F2FS_GET_BLOCK_PRE_DIO;
 
 	trace_f2fs_truncate_blocks_enter(inode, from);
 
@@ -610,7 +608,7 @@ int f2fs_truncate_blocks(struct inode *inode, u64 from, bool lock)
 		goto free_partial;
 
 	if (lock)
-		f2fs_lock_op(sbi);
+		__do_map_lock(sbi, flag, true);
 
 	ipage = f2fs_get_node_page(sbi, inode->i_ino);
 	if (IS_ERR(ipage)) {
@@ -648,7 +646,7 @@ free_next:
 	err = f2fs_truncate_inode_blocks(inode, free_from);
 out:
 	if (lock)
-		f2fs_unlock_op(sbi);
+		__do_map_lock(sbi, flag, false);
 free_partial:
 	/* lastly zero out the first data page */
 	if (!err)
@@ -683,7 +681,7 @@ int f2fs_truncate(struct inode *inode)
 			return err;
 	}
 
-	err = f2fs_truncate_blocks(inode, i_size_read(inode), true);
+	err = f2fs_truncate_blocks(inode, i_size_read(inode), true, false);
 	if (err)
 		return err;
 
@@ -793,9 +791,24 @@ int f2fs_setattr(struct dentry *dentry, struct iattr *attr)
 		!uid_eq(attr->ia_uid, inode->i_uid)) ||
 		(attr->ia_valid & ATTR_GID &&
 		!gid_eq(attr->ia_gid, inode->i_gid))) {
+		f2fs_lock_op(F2FS_I_SB(inode));
 		err = dquot_transfer(inode, attr);
-		if (err)
+		if (err) {
+			set_sbi_flag(F2FS_I_SB(inode),
+					SBI_QUOTA_NEED_REPAIR);
+			f2fs_unlock_op(F2FS_I_SB(inode));
 			return err;
+		}
+		/*
+		 * update uid/gid under lock_op(), so that dquot and inode can
+		 * be updated atomically.
+		 */
+		if (attr->ia_valid & ATTR_UID)
+			inode->i_uid = attr->ia_uid;
+		if (attr->ia_valid & ATTR_GID)
+			inode->i_gid = attr->ia_gid;
+		f2fs_mark_inode_dirty_sync(inode, true);
+		f2fs_unlock_op(F2FS_I_SB(inode));
 	}
 
 	if (attr->ia_valid & ATTR_SIZE) {
@@ -1253,7 +1266,7 @@ static int f2fs_collapse_range(struct inode *inode, loff_t offset, loff_t len)
 	new_size = i_size_read(inode) - len;
 	truncate_pagecache(inode, new_size);
 
-	ret = f2fs_truncate_blocks(inode, new_size, true);
+	ret = f2fs_truncate_blocks(inode, new_size, true, false);
 	up_write(&F2FS_I(inode)->i_mmap_sem);
 	if (!ret)
 		f2fs_i_size_write(inode, new_size);
@@ -1438,7 +1451,7 @@ static int f2fs_insert_range(struct inode *inode, loff_t offset, loff_t len)
 	f2fs_balance_fs(sbi, true);
 
 	down_write(&F2FS_I(inode)->i_mmap_sem);
-	ret = f2fs_truncate_blocks(inode, i_size_read(inode), true);
+	ret = f2fs_truncate_blocks(inode, i_size_read(inode), true, false);
 	up_write(&F2FS_I(inode)->i_mmap_sem);
 	if (ret)
 		return ret;
@@ -1978,7 +1991,7 @@ static int f2fs_ioc_fitrim(struct file *filp, unsigned long arg)
 	if (!capable(CAP_SYS_ADMIN))
 		return -EPERM;
 
-	if (!blk_queue_discard(q))
+	if (!f2fs_hw_support_discard(F2FS_SB(sb)))
 		return -EOPNOTSUPP;
 
 	if (copy_from_user(&range, (struct fstrim_range __user *)arg,
@@ -2162,6 +2175,12 @@ static int f2fs_ioc_write_checkpoint(struct file *filp, unsigned long arg)
 	if (f2fs_readonly(sbi->sb))
 		return -EROFS;
 
+	if (unlikely(is_sbi_flag_set(sbi, SBI_CP_DISABLED))) {
+		f2fs_msg(sbi->sb, KERN_INFO,
+			"Skipping Checkpoint. Checkpoints currently disabled.");
+		return -EINVAL;
+	}
+
 	ret = mnt_want_write_file(filp);
 	if (ret)
 		return ret;
@@ -2533,6 +2552,9 @@ static int f2fs_ioc_flush_device(struct file *filp, unsigned long arg)
 	if (f2fs_readonly(sbi->sb))
 		return -EROFS;
 
+	if (unlikely(is_sbi_flag_set(sbi, SBI_CP_DISABLED)))
+		return -EINVAL;
+
 	if (copy_from_user(&range, (struct f2fs_flush_device __user *)arg,
 							sizeof(range)))
 		return -EFAULT;
@@ -2800,7 +2822,8 @@ static ssize_t f2fs_file_write_iter(struct kiocb *iocb, struct iov_iter *from)
 				if (!f2fs_overwrite_io(inode, iocb->ki_pos,
 						iov_iter_count(from)) ||
 					f2fs_has_inline_data(inode) ||
-					f2fs_force_buffered_io(inode, WRITE)) {
+					f2fs_force_buffered_io(inode,
+							iocb, from)) {
 						clear_inode_flag(inode,
 								FI_NO_PREALLOC);
 						inode_unlock(inode);