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SubjectRe: [PATCH 1/9] jbd2: avoid memleak in jbd2_journal_write_metadata_buffer
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On 2024/5/6 22:17, Kemeng Shi wrote:
> The new_bh is from alloc_buffer_head, we should call free_buffer_head to
> free it in error case.

Oh, yeah, this is a separate bh, so it should be freed explicitly, it
looks good to me.

Reviewed-by: Zhang Yi <yi.zhang@huawei.com>

>
> Signed-off-by: Kemeng Shi <shikemeng@huaweicloud.com>
> ---
> fs/jbd2/journal.c | 1 +
> 1 file changed, 1 insertion(+)
>
> diff --git a/fs/jbd2/journal.c b/fs/jbd2/journal.c
> index b6c114c11b97..207b24e12ce9 100644
> --- a/fs/jbd2/journal.c
> +++ b/fs/jbd2/journal.c
> @@ -399,6 +399,7 @@ int jbd2_journal_write_metadata_buffer(transaction_t *transaction,
> tmp = jbd2_alloc(bh_in->b_size, GFP_NOFS);
> if (!tmp) {
> brelse(new_bh);
> + free_buffer_head(new_bh);
> return -ENOMEM;
> }
> spin_lock(&jh_in->b_state_lock);
>


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