diff options
author | Alexey Dobriyan <adobriyan@gmail.com> | 2006-09-29 02:00:01 -0700 |
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committer | Linus Torvalds <torvalds@g5.osdl.org> | 2006-09-29 09:18:11 -0700 |
commit | 50462062a02226a698a211d5bd535376c89b8603 (patch) | |
tree | 07a34af458b338c609a35072b8c6fd1ed2a235a1 /mm/madvise.c | |
parent | cfe14677f286c9be5d683b88214def8f4b8a6f24 (diff) |
[PATCH] fs.h: ifdef security fields
[assuming BSD security levels are deleted]
The only user of i_security, f_security, s_security fields is SELinux,
however, quite a few security modules are trying to get into kernel.
So, wrap them under CONFIG_SECURITY. Adding config option for each
security field is likely an overkill.
Following Stephen Smalley's suggestion, i_security initialization is
moved to security_inode_alloc() to not clutter core code with ifdefs
and make alloc_inode() codepath tiny little bit smaller and faster.
The user of (highly greppable) struct fown_struct::security field is
still to be found. I've checked every "fown_struct" and every "f_owner"
occurence. Additionally it's removal doesn't break i386 allmodconfig
build.
struct inode, struct file, struct super_block, struct fown_struct
become smaller.
P.S. Combined with two reiserfs inode shrinking patches sent to
linux-fsdevel, I can finally suck 12 reiserfs inodes into one page.
/proc/slabinfo
-ext2_inode_cache 388 10
+ext2_inode_cache 384 10
-inode_cache 280 14
+inode_cache 276 14
-proc_inode_cache 296 13
+proc_inode_cache 292 13
-reiser_inode_cache 336 11
+reiser_inode_cache 332 12 <=
-shmem_inode_cache 372 10
+shmem_inode_cache 368 10
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Cc: Stephen Smalley <sds@tycho.nsa.gov>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'mm/madvise.c')
0 files changed, 0 insertions, 0 deletions