linux.git/fs/f2fs/data.c, branch v4.5

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

f2fs: write pending bios when cp_error is set

2015-12-31T21:08:02+00:00

When testing ioc_shutdown, put_super is able to be hanged by waiting for
writebacking pages as follows.

INFO: task umount:2723 blocked for more than 120 seconds.
      Tainted: G           O    4.4.0-rc3+ #8
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
umount          D ffff88000859f9d8     0  2723   2110 0x00000000
 ffff88000859f9d8 0000000000000000 0000000000000000 ffffffff81e11540
 ffff880078c225c0 ffff8800085a0000 ffff88007fc17440 7fffffffffffffff
 ffffffff818239f0 ffff88000859fb48 ffff88000859f9f0 ffffffff8182310c
Call Trace:
 [] ? bit_wait+0x50/0x50
 [] schedule+0x3c/0x90
 [] schedule_timeout+0x2d9/0x430
 [] ? mark_held_locks+0x6f/0xa0
 [] ? ktime_get+0x7d/0x140
 [] ? bit_wait+0x50/0x50
 [] ? kvm_clock_get_cycles+0x25/0x30
 [] ? ktime_get+0xac/0x140
 [] ? bit_wait+0x50/0x50
 [] io_schedule_timeout+0xa4/0x110
 [] bit_wait_io+0x35/0x50
 [] __wait_on_bit+0x5d/0x90
 [] wait_on_page_bit+0xcb/0xf0
 [] ? autoremove_wake_function+0x40/0x40
 [] truncate_inode_pages_range+0x4bc/0x840
 [] truncate_inode_pages_final+0x4d/0x60
 [] f2fs_evict_inode+0x75/0x400 [f2fs]
 [] evict+0xbc/0x190
 [] iput+0x229/0x2c0
 [] f2fs_put_super+0x105/0x1a0 [f2fs]
 [] generic_shutdown_super+0x6a/0xf0
 [] kill_block_super+0x27/0x70
 [] kill_f2fs_super+0x20/0x30 [f2fs]
 [] deactivate_locked_super+0x43/0x70
 [] deactivate_super+0x5c/0x60
 [] cleanup_mnt+0x3f/0x90
 [] __cleanup_mnt+0x12/0x20
 [] task_work_run+0x73/0xa0
 [] exit_to_usermode_loop+0xcc/0xd0
 [] syscall_return_slowpath+0xcc/0xe0
 [] int_ret_from_sys_call+0x25/0x9f

Signed-off-by: Jaegeuk Kim

f2fs: use i_size_read to get i_size

2015-12-30T18:14:19+00:00

We need to use i_size_read() to get inode->i_size.

Signed-off-by: Jaegeuk Kim