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Subject[PATCH 09/13] f2fs: give a chance to mount again when encountering errors
Date
This patch gives another chance to try mount process when we encounter an error.
This makes an effect on the roll-forward recovery failures as well.

Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
---
fs/f2fs/super.c | 13 ++++++++++++-
1 file changed, 12 insertions(+), 1 deletion(-)

diff --git a/fs/f2fs/super.c b/fs/f2fs/super.c
index 60e3554..2856020 100644
--- a/fs/f2fs/super.c
+++ b/fs/f2fs/super.c
@@ -899,8 +899,10 @@ static int f2fs_fill_super(struct super_block *sb, void *data, int silent)
struct buffer_head *raw_super_buf;
struct inode *root;
long err = -EINVAL;
+ bool retry = true;
int i;

+try_onemore:
/* allocate memory for f2fs-specific super block info */
sbi = kzalloc(sizeof(struct f2fs_sb_info), GFP_KERNEL);
if (!sbi)
@@ -1080,9 +1082,11 @@ static int f2fs_fill_super(struct super_block *sb, void *data, int silent)
/* recover fsynced data */
if (!test_opt(sbi, DISABLE_ROLL_FORWARD)) {
err = recover_fsync_data(sbi);
- if (err)
+ if (err) {
f2fs_msg(sb, KERN_ERR,
"Cannot recover all fsync data errno=%ld", err);
+ goto free_kobj;
+ }
}

/*
@@ -1123,6 +1127,13 @@ free_sb_buf:
brelse(raw_super_buf);
free_sbi:
kfree(sbi);
+
+ /* give only one another chance */
+ if (retry) {
+ retry = !retry;
+ shrink_dcache_sb(sb);
+ goto try_onemore;
+ }
return err;
}

--
1.8.5.2 (Apple Git-48)


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