linux-stable.git/fs/f2fs/data.c, branch linux-4.5.y

f2fs: don't need to call set_page_dirty for io error

2016-05-04T21:49:13+00:00

commit e3ef18762f5757d3fb86f75ca59315db6d17d719 upstream.

If end_io gets an error, we don't need to set the page as dirty, since we
already set f2fs_stop_checkpoint which will not flush any data.

This will resolve the following warning.

======================================================
[ INFO: HARDIRQ-safe -> HARDIRQ-unsafe lock order detected ]
4.4.0+ #9 Tainted: G           O
------------------------------------------------------
xfs_io/26773 [HC0[0]:SC0[0]:HE0:SE1] is trying to acquire:
 (&(&sbi->inode_lock[i])->rlock){+.+...}, at: [] update_dirty_page+0x6f/0xd0 [f2fs]

and this task is already holding:
 (&(&q->__queue_lock)->rlock){-.-.-.}, at: [] blk_queue_bio+0x422/0x490
which would create a new lock dependency:
 (&(&q->__queue_lock)->rlock){-.-.-.} -> (&(&sbi->inode_lock[i])->rlock){+.+...}

Signed-off-by: Jaegeuk Kim 
Signed-off-by: Greg Kroah-Hartman

f2fs: do f2fs_balance_fs when block is allocated

2016-05-04T21:49:13+00:00

commit 3c082b7b5b28be606ed9ef11e4741df7c722c92e upstream.

We should consider data block allocation to trigger f2fs_balance_fs.

Signed-off-by: Jaegeuk Kim 
Signed-off-by: Greg Kroah-Hartman

wrappers for ->i_mutex access

2016-01-22T23:04:28+00:00

parallel to mutex_{lock,unlock,trylock,is_locked,lock_nested},
inode_foo(inode) being mutex_foo(&inode->i_mutex).

Please, use those for access to ->i_mutex; over the coming cycle
->i_mutex will become rwsem, with ->lookup() done with it held
only shared.

Signed-off-by: Al Viro

f2fs: detect idle time depending on user behavior

2016-01-11T23:56:37+00:00

This patch adds last time that user requested filesystem operations.
This information is used to detect whether system is idle or not later.

Signed-off-by: Jaegeuk Kim

f2fs: recognize encrypted data in f2fs_fiemap

2016-01-08T19:51:58+00:00

This patch fixes to teach f2fs_fiemap to recognize encrypted data.

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

f2fs: clean up f2fs_balance_fs

2016-01-08T19:45:23+00:00

This patch adds one parameter to clean up all the callers of f2fs_balance_fs.

Signed-off-by: Jaegeuk Kim

f2fs: avoid unnecessary f2fs_balance_fs calls

2016-01-08T19:45:22+00:00

Only when node page is newly dirtied, it needs to check whether we need to do
f2fs_gc.

Signed-off-by: Jaegeuk Kim

f2fs: check the page status filled from disk

2016-01-08T19:45:21+00:00

After reading a page, we need to check whether there is any error.

Signed-off-by: Jaegeuk Kim

f2fs: read isize while holding i_mutex in fiemap

2016-01-07T03:15:49+00:00

make sure the isize we read doesn't change during the process.

Signed-off-by: Fan li 
Signed-off-by: Jaegeuk Kim

f2fs: introduce max_file_blocks in sbi

2016-01-04T05:40:04+00:00

Introduce max_file_blocks in sbi to store max block index of file in f2fs,
it could be used to avoid unneeded calculation of max block index in
runtime.

Signed-off-by: Chao Yu 
[Jaegeuk Kim: fix overflow of sbi->max_file_blocks]
Signed-off-by: Jaegeuk Kim