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f2fs: avoid infinite loop in f2fs_alloc_nid

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If we have an error in f2fs_build_free_nids, we're able to fall into a loop
to find free nids.

Suggested-by: Chao Yu <chao@kernel.org>
Reviewed-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
This commit is contained in:
Jaegeuk Kim 2018-09-19 15:45:19 -07:00
parent a7d10cf3e4
commit f84262b086
1 changed files with 3 additions and 2 deletions
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5
fs/f2fs/node.c
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@ -2350,8 +2350,9 @@ bool f2fs_alloc_nid(struct f2fs_sb_info *sbi, nid_t *nid)
spin_unlock(&nm_i->nid_list_lock);
/* Let's scan nat pages and its caches to get free nids */
f2fs_build_free_nids(sbi, true, false);
goto retry;
if (!f2fs_build_free_nids(sbi, true, false))
goto retry;
return false;
}
/*