[U-Boot] [PATCH] ext2fs: Fix optimization bug for doubly-indirect block pointers

[Wolfgang Denk]

Dear Aaron Pace,

In message <4C4DE8DC.4020500 at alcatel-lucent.com> you wrote:
> Fix optimization bug for doubly-indirect block pointers
> 
> Doubly-indirect block numbers are compared against the first-level
> indirect block when checking for a cached copy.  This is causing the
> doubly-indirect block to be re-read each time it is accessed.
> Repairing this reduces load time for a 70M file from 72 seconds
> to 38 seconds.
> 
> Signed-off-by: Aaron Pace <Aaron.Pace at alcatel-lucent.com>
> ---
>  fs/ext2/ext2fs.c |    2 +-
>  1 files changed, 1 insertions(+), 1 deletions(-)
> 
> diff --git a/fs/ext2/ext2fs.c b/fs/ext2/ext2fs.c
> index 4b391d6..a88cf87 100644
> --- a/fs/ext2/ext2fs.c
> +++ b/fs/ext2/ext2fs.c
> @@ -364,7 +364,7 @@ static int ext2fs_read_block (ext2fs_node_t node, 
> int fileblock) {
>                         indir2_size = blksz;
>                 }
>                 if ((__le32_to_cpu (indir1_block[rblock / perblock]) <<
> -                    log2_blksz) != indir1_blkno) {
> +                    log2_blksz) != indir2_blkno) {
>                         status = ext2fs_devread 
> (__le32_to_cpu(indir1_block[rblock / perblock]) << log2_blksz,

This patch is line-wrapped, please make sure to fix yourmailer.


This has already been applied, so no need to resubmit.

Best regards,

Wolfgang Denk

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