linux.git/fs/f2fs/dir.c, branch v3.19

f2fs: introduce f2fs_dentry_kunmap to clean up

2014-11-24T05:51:53+00:00

This patch introduces f2fs_dentry_kunmap to clean up dirty codes.

Signed-off-by: Jaegeuk Kim

f2fs: remove pointless bit testing in f2fs_delete_entry()

2014-11-04T00:07:38+00:00

There's no point in using test_and_clear_bit_le() when we don't use the
return value of the function. Just use clear_bit_le() instead.

Coverity-id: 1016434
Signed-off-by: Jan Kara 
Signed-off-by: Jaegeuk Kim

f2fs: reuse make_empty_dir code for inline_dentry

2014-11-04T00:07:34+00:00

This patch introduces do_make_empty_dir to mitigate code redundancy
for inline_dentry.

Signed-off-by: Jaegeuk Kim

f2fs: introduce f2fs_dentry_ptr structure for code clean-up

2014-11-04T00:07:34+00:00

This patch introduces f2fs_dentry_ptr structure for the use of a function
parameter in inline_dentry operations.

Signed-off-by: Jaegeuk Kim

f2fs: reuse core function in f2fs_readdir for inline_dentry

2014-11-04T00:07:34+00:00

This patch introduces a core function, f2fs_fill_dentries, to remove
redundant code in f2fs_readdir and f2fs_read_inline_dir.

Signed-off-by: Jaegeuk Kim

f2fs: avoid deadlock on init_inode_metadata

2014-11-04T00:07:33+00:00

Previously, init_inode_metadata does not hold any parent directory's inode
page. So, f2fs_init_acl can grab its parent inode page without any problem.
But, when we use inline_dentry, that page is grabbed during f2fs_add_link,
so that we can fall into deadlock condition like below.

INFO: task mknod:11006 blocked for more than 120 seconds.
      Tainted: G           OE  3.17.0-rc1+ #13
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
mknod           D ffff88003fc94580     0 11006  11004 0x00000000
 ffff880007717b10 0000000000000002 ffff88003c323220 ffff880007717fd8
 0000000000014580 0000000000014580 ffff88003daecb30 ffff88003c323220
 ffff88003fc94e80 ffff88003ffbb4e8 ffff880007717ba0 0000000000000002
Call Trace:
 [] ? bit_wait+0x50/0x50
 [] io_schedule+0x9d/0x130
 [] bit_wait_io+0x2c/0x50
 [] __wait_on_bit_lock+0x4b/0xb0
 [] __lock_page+0x67/0x70
 [] ? autoremove_wake_function+0x40/0x40
 [] pagecache_get_page+0x14c/0x1e0
 [] get_node_page+0x59/0x130 [f2fs]
 [] read_all_xattrs+0x24d/0x430 [f2fs]
 [] f2fs_getxattr+0x52/0xe0 [f2fs]
 [] f2fs_get_acl+0x41/0x2d0 [f2fs]
 [] get_acl+0x47/0x70
 [] posix_acl_create+0x5a/0x150
 [] f2fs_init_acl+0x29/0xcb [f2fs]
 [] init_inode_metadata+0x5d/0x340 [f2fs]
 [] f2fs_add_inline_entry+0x12a/0x2e0 [f2fs]
 [] __f2fs_add_link+0x45/0x4a0 [f2fs]
 [] ? f2fs_new_inode+0x146/0x220 [f2fs]
 [] f2fs_mknod+0x86/0xf0 [f2fs]
 [] vfs_mknod+0xe1/0x160
 [] SyS_mknod+0x1f6/0x200
 [] tracesys+0xe1/0xe6

Signed-off-by: Jaegeuk Kim

f2fs: fix to wait correct block type

2014-11-04T00:07:33+00:00

The inode page needs to wait NODE block io.

Signed-off-by: Jaegeuk Kim

f2fs: reuse find_in_block code for find_in_inline_dir

2014-11-04T00:07:32+00:00

This patch removes redundant copied code in find_in_inline_dir.

Signed-off-by: Jaegeuk Kim

f2fs: reuse room_for_filename for inline dentry operation

2014-11-04T00:07:32+00:00

This patch introduces to reuse the existing room_for_filename for inline dentry
operation.

Signed-off-by: Jaegeuk Kim

f2fs: enable inline dir handling

2014-11-04T00:07:32+00:00

Add inline dir functions into normal dir ops' function to handle inline ops.
Besides, we enable inline dir mode when a new dir inode is created if
inline_data option is on.

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