From mboxrd@z Thu Jan 1 00:00:00 1970 From: akpm@linux-foundation.org Subject: + file-lock-reorder-struct-file_lock-to-save-space-on-64-bit-builds.patch added to -mm tree Date: Fri, 11 Jul 2008 17:20:49 -0700 Message-ID: <200807120020.m6C0KnBx012130@imap1.linux-foundation.org> Reply-To: linux-kernel@vger.kernel.org Return-path: Received: from smtp1.linux-foundation.org ([140.211.169.13]:58107 "EHLO smtp1.linux-foundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753969AbYGLAVA (ORCPT ); Fri, 11 Jul 2008 20:21:00 -0400 Sender: mm-commits-owner@vger.kernel.org List-Id: mm-commits@vger.kernel.org To: mm-commits@vger.kernel.org Cc: richard@rsk.demon.co.uk, bfields@fieldses.org The patch titled file lock: reorder struct file_lock to save space on 64 bit builds has been added to the -mm tree. Its filename is file-lock-reorder-struct-file_lock-to-save-space-on-64-bit-builds.patch Before you just go and hit "reply", please: a) Consider who else should be cc'ed b) Prefer to cc a suitable mailing list as well c) Ideally: find the original patch on the mailing list and do a reply-to-all to that, adding suitable additional cc's *** Remember to use Documentation/SubmitChecklist when testing your code *** See http://www.zip.com.au/~akpm/linux/patches/stuff/added-to-mm.txt to find out what to do about this The current -mm tree may be found at http://userweb.kernel.org/~akpm/mmotm/ ------------------------------------------------------ Subject: file lock: reorder struct file_lock to save space on 64 bit builds From: Richard Kennedy 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 Cc: "J. Bruce Fields" Signed-off-by: Andrew Morton --- 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@rsk.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