kernel.git/fs/f2fs/checkpoint.c, branch linux-3.17.y

f2fs: use macro for code readability

2014-08-22T20:56:47Z

This patch introduces DEF_NIDS_PER_INODE/GET_ORPHAN_BLOCKS/F2FS_CP_PACKS macro instead of numbers in code for readability. change log from v1: o fix typo pointed out by Jaegeuk Kim. Signed-off-by: Chao Yu Signed-off-by: Jaegeuk Kim

f2fs: handle EIO not to break fs consistency

2014-08-21T20:55:05Z

There are two rules when EIO is occurred. 1. don't write any checkpoint data to preserve the previous checkpoint 2. don't lose the cached dentry/node/meta pages So, at first, this patch adds set_page_dirty in f2fs_write_end_io's failure. Then, writing checkpoint/dentry/node blocks is not allowed. Note that, for the data pages, we can't just throw away by redirtying them. Otherwise, kworker can fall into infinite loop to flush them. (Ref. xfstests/019) Signed-off-by: Jaegeuk Kim

f2fs: check s_dirty under cp_mutex

2014-08-21T16:21:02Z

It needs to check s_dirty under cp_mutex, since s_dirty is reset under that mutex. And previous condition was not correct, since we can omit doing checkpoint when checkpoint was done followed by all the node pages were written back. Signed-off-by: Jaegeuk Kim

f2fs: introduce f2fs_cp_error for readability

2014-08-21T16:21:00Z

This patch adds f2fs_cp_error for readability. Signed-off-by: Jaegeuk Kim

f2fs: trigger release_dirty_inode in f2fs_put_super

2014-08-21T16:20:29Z

The generic_shutdown_super calls sync_filesystem, evict_inode, and then f2fs_put_super. In f2fs_evict_inode, we remain some dirty inode information so we should release them at f2fs_put_super. Reviewed-by: Chao Yu Signed-off-by: Jaegeuk Kim

f2fs: fix typo

2014-08-19T17:01:33Z

Fix typo and some grammatical errors. The words "filesystem" and "readahead" are being used without the space treewide. Signed-off-by: Park Ju Hyung Signed-off-by: Jaegeuk Kim

f2fs: reduce competition among node page writes

2014-07-31T06:28:37Z

We do not need to block on ->node_write among different node page writers e.g. fsync/flush, unless we have a node page writer from write_checkpoint. So it's better use rw_semaphore instead of mutex type for ->node_write to promote performance. Signed-off-by: Chao Yu Signed-off-by: Jaegeuk Kim

f2fs: avoid retrying wrong recovery routine when error was occurred

2014-07-30T21:13:35Z

This patch eliminates the propagation of recovery errors to the next mount. Signed-off-by: Jaegeuk Kim

f2fs: fix wrong condition for unlikely

2014-07-30T21:13:31Z

This patch fixes the wrongly used unlikely condition. Reviewed-by: Chao Yu Signed-off-by: Jaegeuk Kim

f2fs: add info of appended or updated data writes

2014-07-29T14:46:11Z

This patch introduces a inode number list in which represents inodes having appended data writes or updated data writes after last checkpoint. This will be used at fsync to determine whether the recovery information should be written or not. Reviewed-by: Chao Yu Signed-off-by: Jaegeuk Kim