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f2fs: avoid retrying wrong recovery routine when error was occurred 

This patch eliminates the propagation of recovery errors to the next mount.

Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
This commit is contained in:
Jaegeuk Kim 2014-07-25 15:47:25 -07:00
parent 61e0f2d0a5
commit cf2271e781
4 changed files with 23 additions and 7 deletions
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3
fs/f2fs/checkpoint.c
View File

@ -796,6 +796,7 @@ static void wait_on_all_pages_writeback(struct f2fs_sb_info *sbi)
static void do_checkpoint(struct f2fs_sb_info *sbi, bool is_umount)
{
struct f2fs_checkpoint *ckpt = F2FS_CKPT(sbi);
struct curseg_info *curseg = CURSEG_I(sbi, CURSEG_WARM_NODE);
nid_t last_nid = 0;
block_t start_blk;
struct page *cp_page;
@ -809,7 +810,7 @@ static void do_checkpoint(struct f2fs_sb_info *sbi, bool is_umount)
* This avoids to conduct wrong roll-forward operations and uses
* metapages, so should be called prior to sync_meta_pages below.
*/
discard_next_dnode(sbi);
discard_next_dnode(sbi, NEXT_FREE_BLKADDR(sbi, curseg));
/* Flush all the NAT/SIT pages */
while (get_pages(sbi, F2FS_DIRTY_META))

2
fs/f2fs/f2fs.h
View File

@ -1225,7 +1225,7 @@ void destroy_flush_cmd_control(struct f2fs_sb_info *);
void invalidate_blocks(struct f2fs_sb_info *, block_t);
void refresh_sit_entry(struct f2fs_sb_info *, block_t, block_t);
void clear_prefree_segments(struct f2fs_sb_info *);
void discard_next_dnode(struct f2fs_sb_info *);
void discard_next_dnode(struct f2fs_sb_info *, block_t);
int npages_for_summary_flush(struct f2fs_sb_info *);
void allocate_new_segments(struct f2fs_sb_info *);
struct page *get_sum_page(struct f2fs_sb_info *, unsigned int);

20
fs/f2fs/recovery.c
View File

@ -434,7 +434,9 @@ next:
int recover_fsync_data(struct f2fs_sb_info *sbi)
{
struct curseg_info *curseg = CURSEG_I(sbi, CURSEG_WARM_NODE);
struct list_head inode_list;
block_t blkaddr;
int err;
bool need_writecp = false;
@ -447,6 +449,9 @@ int recover_fsync_data(struct f2fs_sb_info *sbi)
/* step #1: find fsynced inode numbers */
sbi->por_doing = true;
blkaddr = NEXT_FREE_BLKADDR(sbi, curseg);
err = find_fsync_dnodes(sbi, &inode_list);
if (err)
goto out;
@ -462,8 +467,21 @@ int recover_fsync_data(struct f2fs_sb_info *sbi)
out:
destroy_fsync_dnodes(&inode_list);
kmem_cache_destroy(fsync_entry_slab);
if (err) {
truncate_inode_pages_final(NODE_MAPPING(sbi));
truncate_inode_pages_final(META_MAPPING(sbi));
}
sbi->por_doing = false;
if (!err && need_writecp)
if (err) {
discard_next_dnode(sbi, blkaddr);
/* Flush all the NAT/SIT pages */
while (get_pages(sbi, F2FS_DIRTY_META))
sync_meta_pages(sbi, META, LONG_MAX);
} else if (need_writecp) {
write_checkpoint(sbi, false);
}
return err;
}

5
fs/f2fs/segment.c
View File

@ -379,11 +379,8 @@ static int f2fs_issue_discard(struct f2fs_sb_info *sbi,
return blkdev_issue_discard(sbi->sb->s_bdev, start, len, GFP_NOFS, 0);
}
void discard_next_dnode(struct f2fs_sb_info *sbi)
void discard_next_dnode(struct f2fs_sb_info *sbi, block_t blkaddr)
{
struct curseg_info *curseg = CURSEG_I(sbi, CURSEG_WARM_NODE);
block_t blkaddr = NEXT_FREE_BLKADDR(sbi, curseg);
if (f2fs_issue_discard(sbi, blkaddr, 1)) {
struct page *page = grab_meta_page(sbi, blkaddr);
/* zero-filled page */