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Message-ID: <20080713213222.GD2810@fieldses.org>
Date: Sun, 13 Jul 2008 17:32:22 -0400
From: "J. Bruce Fields" <bfields@...ldses.org>
To: richard@....demon.co.uk
Cc: linux-kernel@...r.kernel.org, akpm@...ux-foundation.org
Subject: Re: +
file-lock-reorder-struct-file_lock-to-save-space-on-64-bit-builds.pa
tch added to -mm tree
Thanks, applied to my queue of nfsd and locks stuff for 2.6.27 at:
git://linux-nfs.org/~bfields/linux.git for-2.6.27
--b.
On Fri, Jul 11, 2008 at 05:20:49PM -0700, akpm@...ux-foundation.org wrote:
> Subject: file lock: reorder struct file_lock to save space on 64 bit builds
> From: Richard Kennedy <richard@....demon.co.uk>
>
> Reduce sizeof struct file_lock by 8 on 64 bit builds allowing +1 objects
> per slab in the file_lock_cache
>
> Signed-off-by: Richard Kennedy <richard@....demon.co.uk>
> Cc: "J. Bruce Fields" <bfields@...ldses.org>
> Signed-off-by: Andrew Morton <akpm@...ux-foundation.org>
> ---
>
> include/linux/fs.h | 4 ++--
> 1 file changed, 2 insertions(+), 2 deletions(-)
>
> diff -puN include/linux/fs.h~file-lock-reorder-struct-file_lock-to-save-space-on-64-bit-builds include/linux/fs.h
> --- a/include/linux/fs.h~file-lock-reorder-struct-file_lock-to-save-space-on-64-bit-builds
> +++ a/include/linux/fs.h
> @@ -952,12 +952,12 @@ struct file_lock {
> struct list_head fl_link; /* doubly linked list of all locks */
> struct list_head fl_block; /* circular list of blocked processes */
> fl_owner_t fl_owner;
> + unsigned char fl_flags;
> + unsigned char fl_type;
> unsigned int fl_pid;
> struct pid *fl_nspid;
> wait_queue_head_t fl_wait;
> struct file *fl_file;
> - unsigned char fl_flags;
> - unsigned char fl_type;
> loff_t fl_start;
> loff_t fl_end;
>
> _
>
> Patches currently in -mm which might be from richard@....demon.co.uk are
>
> linux-next.patch
> shrink-struct-pid-by-removing-padding-on-64-bit-builds.patch
> file-lock-reorder-struct-file_lock-to-save-space-on-64-bit-builds.patch
>
--
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