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f2fs: fix to recover data written by dio

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If data are overwritten through dio, previous f2fs doesn't remain the fsync mark
due to no additional node writes.

Note that this patch should resolve the xfstests:311.

Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
This commit is contained in:
Jaegeuk Kim 2014-06-04 00:39:42 +09:00
parent 1dbe415216
commit b6fe5873cb
3 changed files with 16 additions and 0 deletions
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3
fs/f2fs/data.c
View file

@ -1041,6 +1041,9 @@ static ssize_t f2fs_direct_IO(int rw, struct kiocb *iocb,
if (check_direct_IO(inode, rw, iov, offset, nr_segs))
return 0;
/* clear fsync mark to recover these blocks */
fsync_mark_clear(F2FS_SB(inode->i_sb), inode->i_ino);
return blockdev_direct_IO(rw, iocb, inode, iov, offset, nr_segs,
get_data_block);
}

1
fs/f2fs/f2fs.h
View file

@ -1168,6 +1168,7 @@ struct node_info;
bool available_free_memory(struct f2fs_sb_info *, int);
int is_checkpointed_node(struct f2fs_sb_info *, nid_t);
bool fsync_mark_done(struct f2fs_sb_info *, nid_t);
void fsync_mark_clear(struct f2fs_sb_info *, nid_t);
void get_node_info(struct f2fs_sb_info *, nid_t, struct node_info *);
int get_dnode_of_data(struct dnode_of_data *, pgoff_t, int);
int truncate_inode_blocks(struct inode *, pgoff_t);

12
fs/f2fs/node.c
View file

@ -153,6 +153,18 @@ bool fsync_mark_done(struct f2fs_sb_info *sbi, nid_t nid)
return fsync_done;
}
void fsync_mark_clear(struct f2fs_sb_info *sbi, nid_t nid)
{
struct f2fs_nm_info *nm_i = NM_I(sbi);
struct nat_entry *e;
write_lock(&nm_i->nat_tree_lock);
e = __lookup_nat_cache(nm_i, nid);
if (e)
e->fsync_done = false;
write_unlock(&nm_i->nat_tree_lock);
}
static struct nat_entry *grab_nat_entry(struct f2fs_nm_info *nm_i, nid_t nid)
{
struct nat_entry *new;