linux.git/fs/f2fs/data.c, branch v4.11

sched/headers: Prepare to move signal wakeup & sigpending methods from into

2017-03-02T07:42:32+00:00

Fix up affected files that include this signal functionality via sched.h.

Acked-by: Linus Torvalds 
Cc: Mike Galbraith 
Cc: Peter Zijlstra 
Cc: Thomas Gleixner 
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Ingo Molnar

f2fs: fix to update F2FS_{CP_}WB_DATA count correctly

2017-02-27T18:40:08+00:00

We should only account F2FS_{CP_}WB_DATA IOs for write path, fix it.

Signed-off-by: Chao Yu 
Signed-off-by: Jaegeuk Kim

f2fs: show simple call stack in fault injection message

2017-02-27T17:59:55+00:00

Previously kernel message can show that in which function we do the
injection, but unfortunately, most of the caller are the same, for
tracking more information of injection path, it needs to show upper
caller's name. This patch supports that ability.

Signed-off-by: Chao Yu 
Signed-off-by: Jaegeuk Kim

f2fs: no need lock_op in f2fs_write_inline_data

2017-02-27T17:59:55+00:00

Similar as f2fs_write_inode, f2fs_write_inline_data just
mark inode page dirty, so it's no need to write inline data
under read lock of cp_rwsem.

Signed-off-by: Yunlei He 
Signed-off-by: Jaegeuk Kim

f2fs: avoid m_flags overlay when allocating more data blocks

2017-02-27T17:59:52+00:00

When more than one data blocks are allocated, the F2FS_MAP_UNWRITTEN/MAPPED
flags will be overlapped by F2FS_MAP_NEW at the later times.

Signed-off-by: Kinglong Mee 
Reviewed-by: Chao Yu 
Signed-off-by: Jaegeuk Kim

f2fs: init local extent_info to avoid stale stack info in tp

2017-02-27T17:59:50+00:00

To avoid such stale(fops, blk, len) info in f2fs_lookup_extent_tree_end tp

dio-23095 [005] ...1 17878.856859: f2fs_lookup_extent_tree_end:
			dev = (259,30), ino = 856, pgofs = 0,
			ext_info(fofs: 3441207040, blk: 4294967232, len: 3481143808)

Signed-off-by: Hou Pengyang 
Reviewed-by: Chao Yu 
Signed-off-by: Jaegeuk Kim

f2fs: do not wait for writeback in write_begin

2017-02-23T19:23:27+00:00

Otherwise we can get livelock like below.

[79880.428136] dbench          D    0 18405  18404 0x00000000
[79880.428139] Call Trace:
[79880.428142]  __schedule+0x219/0x6b0
[79880.428144]  schedule+0x36/0x80
[79880.428147]  schedule_timeout+0x243/0x2e0
[79880.428152]  ? update_sd_lb_stats+0x16b/0x5f0
[79880.428155]  ? ktime_get+0x3c/0xb0
[79880.428157]  io_schedule_timeout+0xa6/0x110
[79880.428161]  __lock_page+0xf7/0x130
[79880.428164]  ? unlock_page+0x30/0x30
[79880.428167]  pagecache_get_page+0x16b/0x250
[79880.428171]  grab_cache_page_write_begin+0x20/0x40
[79880.428182]  f2fs_write_begin+0xa2/0xdb0 [f2fs]
[79880.428192]  ? f2fs_mark_inode_dirty_sync+0x16/0x30 [f2fs]
[79880.428197]  ? kmem_cache_free+0x79/0x200
[79880.428203]  ? __mark_inode_dirty+0x17f/0x360
[79880.428206]  generic_perform_write+0xbb/0x190
[79880.428213]  ? file_update_time+0xa4/0xf0
[79880.428217]  __generic_file_write_iter+0x19b/0x1e0
[79880.428226]  f2fs_file_write_iter+0x9c/0x180 [f2fs]
[79880.428231]  __vfs_write+0xc5/0x140
[79880.428235]  vfs_write+0xb2/0x1b0
[79880.428238]  SyS_write+0x46/0xa0
[79880.428242]  entry_SYSCALL_64_fastpath+0x1e/0xad

Fixes: cae96a5c8ab6 ("f2fs: check io submission more precisely")
Reviewed-by: Chao Yu 
Signed-off-by: Jaegeuk Kim

f2fs: remove preflush for nobarrier case

2017-02-23T18:10:48+00:00

This patch removes REQ_PREFLUSH in the nobarrier case.

Signed-off-by: Jaegeuk Kim

f2fs: check last page index in cached bio to decide submission

2017-02-23T18:10:48+00:00

If the cached bio has the last page's index, then we need to submit it.
Otherwise, we don't need to submit it and can wait for further IO merges.

Reviewed-by: Chao Yu 
Signed-off-by: Jaegeuk Kim

f2fs: check io submission more precisely

2017-02-23T18:10:47+00:00

This patch check IO submission more precisely than previous rough check.

Signed-off-by: Jaegeuk Kim