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f2fs: fix f2fs_ioc_abort_volatile_write 

There are two rules to handle aborting volatile or atomic writes.

1. drop atomic writes
 - we don't need to keep any stale db data.

2. write journal data
 - we should keep the journal data with fsync for db recovery.

Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
This commit is contained in:
Jaegeuk Kim 2015-12-29 15:46:33 -08:00
parent 4e0d836d5f
commit 732d56489f
1 changed files with 8 additions and 3 deletions
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11
fs/f2fs/file.c
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@ -1433,9 +1433,14 @@ static int f2fs_ioc_abort_volatile_write(struct file *filp)
if (ret)
return ret;
clear_inode_flag(F2FS_I(inode), FI_ATOMIC_FILE);
clear_inode_flag(F2FS_I(inode), FI_VOLATILE_FILE);
commit_inmem_pages(inode, true);
if (f2fs_is_atomic_file(inode)) {
clear_inode_flag(F2FS_I(inode), FI_ATOMIC_FILE);
commit_inmem_pages(inode, true);
}
if (f2fs_is_volatile_file(inode)) {
clear_inode_flag(F2FS_I(inode), FI_VOLATILE_FILE);
ret = f2fs_sync_file(filp, 0, LLONG_MAX, 0);
}
mnt_drop_write_file(filp);
return ret;