[Cluster-devel] [GFS2 Patch] GFS2: Remove redundant metadata block type check
Steven Whitehouse
swhiteho at redhat.com
Tue May 8 15:45:50 UTC 2012
Hi,
On Fri, 2012-04-27 at 08:40 -0400, Bob Peterson wrote:
> Hi,
>
> This patch removes a redundant metadata block check. See description below.
>
> Regards,
>
Now pushed to the -nmw git tree. Sorry for the delay,
Steve.
> Bob Peterson
> Red Hat File Systems
>
> Signed-off-by: Bob Peterson <rpeterso at redhat.com>
> ---
> Author: Bob Peterson <rpeterso at redhat.com>
> Date: Fri Apr 27 07:33:08 2012 -0500
>
> GFS2: Remove redundant metadata block type check
>
> Function gfs2_inode_refresh calls gfs2_meta_inode_buffer, which itself
> calls gfs2_meta_indirect_buffer with height 0. Since this path through
> gfs2_meta_indirect_buffer makes a call to gfs2_metatype_check, the
> call in gfs2_inode_refresh is redundant and just a waste of time.
> This patch removes it.
>
> diff --git a/fs/gfs2/glops.c b/fs/gfs2/glops.c
> index cd3e6fb..4bdcf37 100644
> --- a/fs/gfs2/glops.c
> +++ b/fs/gfs2/glops.c
> @@ -378,11 +378,6 @@ int gfs2_inode_refresh(struct gfs2_inode *ip)
> if (error)
> return error;
>
> - if (gfs2_metatype_check(GFS2_SB(&ip->i_inode), dibh, GFS2_METATYPE_DI)) {
> - brelse(dibh);
> - return -EIO;
> - }
> -
> error = gfs2_dinode_in(ip, dibh->b_data);
> brelse(dibh);
> clear_bit(GIF_INVALID, &ip->i_flags);
>
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