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| author | Chao Yu <yuchao0@huawei.com> | 2019-02-19 09:23:53 +0100 |
|---|---|---|
| committer | Jaegeuk Kim <jaegeuk@kernel.org> | 2019-03-13 02:59:17 +0100 |
| commit | aa2c8c43e4a5c242f5b0331c8b7a941b85f9435a (patch) | |
| tree | 770a3dd298dc739d2b3b1aecdfd21316d54d8993 /fs/f2fs | |
| parent | f2fs: silence VM_WARN_ON_ONCE in mempool_alloc (diff) | |
| download | linux-aa2c8c43e4a5c242f5b0331c8b7a941b85f9435a.tar.xz linux-aa2c8c43e4a5c242f5b0331c8b7a941b85f9435a.zip | |
f2fs: fix to retry fill_super only if recovery failed
With current retry mechanism in f2fs_fill_super, first fill_super
fails due to no memory, then second fill_super runs w/o recovery,
if we succeed, we may lose fsynced data, it doesn't make sense.
Let's retry fill_super only if it occurs non-ENOMEM error during
recovery.
Signed-off-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Diffstat (limited to 'fs/f2fs')
| -rw-r--r-- | fs/f2fs/super.c | 19 |
1 files changed, 11 insertions, 8 deletions
diff --git a/fs/f2fs/super.c b/fs/f2fs/super.c index 230845221c74..45121190a2ba 100644 --- a/fs/f2fs/super.c +++ b/fs/f2fs/super.c @@ -3053,10 +3053,11 @@ static int f2fs_fill_super(struct super_block *sb, void *data, int silent) struct f2fs_super_block *raw_super; struct inode *root; int err; - bool retry = true, need_fsck = false; + bool skip_recovery = false, need_fsck = false; char *options = NULL; int recovery, i, valid_super_block; struct curseg_info *seg_i; + int retry_cnt = 1; try_onemore: err = -EINVAL; @@ -3345,7 +3346,7 @@ try_onemore: goto free_meta; if (unlikely(is_set_ckpt_flags(sbi, CP_DISABLED_FLAG))) - goto skip_recovery; + goto reset_checkpoint; /* recover fsynced data */ if (!test_opt(sbi, DISABLE_ROLL_FORWARD)) { @@ -3362,11 +3363,13 @@ try_onemore: if (need_fsck) set_sbi_flag(sbi, SBI_NEED_FSCK); - if (!retry) - goto skip_recovery; + if (skip_recovery) + goto reset_checkpoint; err = f2fs_recover_fsync_data(sbi, false); if (err < 0) { + if (err != -ENOMEM) + skip_recovery = true; need_fsck = true; f2fs_msg(sb, KERN_ERR, "Cannot recover all fsync data errno=%d", err); @@ -3382,7 +3385,7 @@ try_onemore: goto free_meta; } } -skip_recovery: +reset_checkpoint: /* f2fs_recover_fsync_data() cleared this already */ clear_sbi_flag(sbi, SBI_POR_DOING); @@ -3428,7 +3431,7 @@ skip_recovery: sync_free_meta: /* safe to flush all the data */ sync_filesystem(sbi->sb); - retry = false; + retry_cnt = 0; free_meta: #ifdef CONFIG_QUOTA @@ -3488,8 +3491,8 @@ free_sbi: kvfree(sbi); /* give only one another chance */ - if (retry) { - retry = false; + if (retry_cnt > 0 && skip_recovery) { + retry_cnt--; shrink_dcache_sb(sb); goto try_onemore; } |