lists.openwall.net | lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC | |
Open Source and information security mailing list archives
| ||
|
Date: Fri, 18 Jan 2008 11:16:09 -0800 From: Mingming Cao <cmm@...ibm.com> To: Indan Zupancic <indan@....nu> Cc: linux-ext4@...r.kernel.org, linux-kernel@...r.kernel.org Subject: Re: [PATCH] Shrink ext3_inode_info by 8 bytes for !POSIX_ACL. On Sat, 2008-01-12 at 21:35 +0100, Indan Zupancic wrote: > i_file_acl and i_dir_acl aren't always needed. > > With certain configs this makes 10 ext3_inode_cache objects fit in > one slab instead of the current 9, as the size shrinks from 416 to > 408 bytes for 32 bit, !POSIX_ACL and !EXT3_FS_XATTR configs. > > Signed-off-by: Indan Zupancic <indan@....nu> > --- > fs/ext3/ialloc.c | 2 ++ > fs/ext3/inode.c | 29 +++++++++++++++++++---------- > include/linux/ext3_fs_i.h | 2 ++ > 3 files changed, 23 insertions(+), 10 deletions(-) > > diff --git a/fs/ext3/ialloc.c b/fs/ext3/ialloc.c > index 1bc8cd8..01745bc 100644 > --- a/fs/ext3/ialloc.c > +++ b/fs/ext3/ialloc.c > @@ -574,8 +574,10 @@ got: > ei->i_frag_no = 0; > ei->i_frag_size = 0; > #endif > +#ifdef CONFIG_EXT3_FS_POSIX_ACL > ei->i_file_acl = 0; > ei->i_dir_acl = 0; > +#endif For regular file, i_dir_acl is being reused as i_size_high to support large file. Mingming - To unsubscribe from this list: send the line "unsubscribe linux-ext4" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
Powered by blists - more mailing lists