btrfs: check the root node for uptodate before returning it

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Now that we clear the extent buffer uptodate if we fail to write it out
we need to check to see if our root node is uptodate before we search
down it.  Otherwise we could return stale data (or potentially corrupt
data that was caught by the write verification step) and think that the
path is OK to search down.

CC: stable@vger.kernel.org # 5.4+
Reviewed-by: Nikolay Borisov <nborisov@suse.com>
Signed-off-by: Josef Bacik <josef@toxicpanda.com>
Signed-off-by: David Sterba <dsterba@suse.com>

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Josef Bacik 2021-11-24 14:14:24 -05:00 • committed by David Sterba

parent a174c0a2e8

commit 120de408e4

1 changed files with 15 additions and 4 deletions

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fs/btrfs/ctree.c

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