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Message-ID: <43651.81.207.0.53.1200700286.squirrel@secure.samage.net> Date: Sat, 19 Jan 2008 00:51:26 +0100 (CET) From: "Indan Zupancic" <indan@....nu> To: cmm@...ibm.com 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 Fri, January 18, 2008 20:16, Mingming Cao wrote: > 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. Only the i_dir_acl of struct ext3_inode, not the one from ext3_inode_info. Thanks, Indan - 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
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