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btrfs: check if the transaction was aborted at btrfs_wait_for_commit()

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[ Upstream commit bf7ecbe9875061bf3fce1883e3b26b77f847d1e8 ]

At btrfs_wait_for_commit() we wait for a transaction to finish and then
always return 0 (success) without checking if it was aborted, in which
case the transaction didn't happen due to some critical error. Fix this
by checking if the transaction was aborted.

Fixes: 462045928b ("Btrfs: add START_SYNC, WAIT_SYNC ioctls")
CC: stable@vger.kernel.org # 4.19+
Reviewed-by: Qu Wenruo <wqu@suse.com>
Signed-off-by: Filipe Manana <fdmanana@suse.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Filipe Manana 2023-07-21 10:49:20 +01:00 committed by Greg Kroah-Hartman
parent 5adbd7ccd4
commit 6db2a3c5c2
1 changed files with 1 additions and 0 deletions
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fs/btrfs/transaction.c
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@ -776,6 +776,7 @@ int btrfs_wait_for_commit(struct btrfs_fs_info *fs_info, u64 transid)
}
wait_for_commit(cur_trans);
ret = cur_trans->aborted;
btrfs_put_transaction(cur_trans);
out:
return ret;