在 2008-12-04四的 19:34 +0530，Aneesh Kumar K.V写道：
> With nodelalloc option we need to update the dirty block counter on
> block allocation failure. This is needed because we increment the
> dirty block counter early in the block allocation phase. Without
> the patch s_dirty_blocks_counter goes wrong so that filesystem's
> free blocks decreases incorrectly.
>
Reviewed by: Mingming Cao <cmm@xxxxxxxxxx>
> Tested-by: Akira Fujita <a-fujita@xxxxxxxxxxxxx>
> Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@xxxxxxxxxxxxxxxxxx>
> ---
> fs/ext4/mballoc.c | 9 ++++++++-
> 1 files changed, 8 insertions(+), 1 deletions(-)
>
> diff --git a/fs/ext4/mballoc.c b/fs/ext4/mballoc.c
> index bacc2f4..22d31c3 100644
> --- a/fs/ext4/mballoc.c
> +++ b/fs/ext4/mballoc.c
> @@ -4550,7 +4550,7 @@ ext4_fsblk_t ext4_mb_new_blocks(handle_t *handle,
> }
> if (ar->len == 0) {
> *errp = -EDQUOT;
> - return 0;
> + goto out3;
> }
> inquota = ar->len;
>
> @@ -4623,6 +4623,13 @@ ext4_fsblk_t ext4_mb_new_blocks(handle_t *handle,
> out1:
> if (ar->len < inquota)
> DQUOT_FREE_BLOCK(ar->inode, inquota - ar->len);
> +out3:
> + if (!ar->len) {
> + if (!EXT4_I(ar->inode)->i_delalloc_reserved_flag)
> + /* release all the reserved blocks if non delalloc */
> + percpu_counter_sub(&sbi->s_dirtyblocks_counter,
> + reserv_blks);
> + }
>
> return block;
> }
--
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