Change log from v1:
o adjust need_writecp condition, pointed by Chao
>From 387830bd09845dce83bf277bf8416c986c108eb7 Mon Sep 17 00:00:00 2001
From: Jaegeuk Kim <jaegeuk@xxxxxxxxxx>
Date: Fri, 25 Jul 2014 15:47:25 -0700
Subject: [PATCH] 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@xxxxxxxxxx>
---
fs/f2fs/checkpoint.c | 3 ++-
fs/f2fs/f2fs.h | 2 +-
fs/f2fs/recovery.c | 20 +++++++++++++++++++-
fs/f2fs/segment.c | 5 +----
4 files changed, 23 insertions(+), 7 deletions(-)
diff --git a/fs/f2fs/checkpoint.c b/fs/f2fs/checkpoint.c
index 26b94bb..cea20b8 100644
--- a/fs/f2fs/checkpoint.c
+++ b/fs/f2fs/checkpoint.c
@@ -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))
diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h
index 475f97c..14b9f74 100644
--- a/fs/f2fs/f2fs.h
+++ b/fs/f2fs/f2fs.h
@@ -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);
diff --git a/fs/f2fs/recovery.c b/fs/f2fs/recovery.c
index a112368..b2aa53b 100644
--- a/fs/f2fs/recovery.c
+++ b/fs/f2fs/recovery.c
@@ -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;
}
diff --git a/fs/f2fs/segment.c b/fs/f2fs/segment.c
index 9fce0f47..e016b97 100644
--- a/fs/f2fs/segment.c
+++ b/fs/f2fs/segment.c
@@ -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 */
--
1.8.5.2 (Apple Git-48)
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