Re: [PATCH] ext2:delete misused ext2_free_blocks

From: Dan Carpenter
Date: Wed Jun 30 2010 - 18:59:52 EST


On Wed, Jun 30, 2010 at 06:21:27PM +0800, Peter Pan wrote:
> if ext2_new_blocks returns error, no blocks need to be freed.
>

Hi Peter,

Your patch isn't right. The original code is OK as is.

Are you seeing a kernel panic? Perhaps we can help you fix it.

regards,
dan carpenter

> Signed-off-by: Peter Pan <wppan@xxxxxxxxxxxxxxxxx>
> ---
> fs/ext2/inode.c | 4 ++--
> 1 files changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/fs/ext2/inode.c b/fs/ext2/inode.c
> index 3675088..f858847 100644
> --- a/fs/ext2/inode.c
> +++ b/fs/ext2/inode.c
> @@ -385,6 +385,8 @@ static int ext2_alloc_blocks(struct inode *inode,
> ext2_fsblk_t current_block = 0;
> int ret = 0;
>
> + *err = -ENOSPC;
> +
> /*
> * Here we try to allocate the requested multiple blocks at once,
> * on a best-effort basis.
> @@ -421,8 +423,6 @@ static int ext2_alloc_blocks(struct inode *inode,
> *err = 0;
> return ret;
> failed_out:
> - for (i = 0; i <index; i++)
> - ext2_free_blocks(inode, new_blocks[i], 1);
> return ret;
> }
>
> --
> 1.6.6
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