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author | 2006-03-22 00:09:22 -0800 | |
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committer | 2006-03-22 07:54:07 -0800 | |
commit | 7cae7e26f245151b9ccad868bf2edf8c8048d307 (patch) | |
tree | db785f2a471c5b97db2551402e067b9559a8989d /kernel | |
parent | [PATCH] SELinux: cleanup stray variable in selinux_inode_init_security() (diff) | |
download | linux-7cae7e26f245151b9ccad868bf2edf8c8048d307.tar.gz linux-7cae7e26f245151b9ccad868bf2edf8c8048d307.tar.bz2 linux-7cae7e26f245151b9ccad868bf2edf8c8048d307.zip |
[PATCH] SELinux: add slab cache for inode security struct
Add a slab cache for the SELinux inode security struct, one of which is
allocated for every inode instantiated by the system.
The memory savings are considerable.
On 64-bit, instead of the size-128 cache, we have a slab object of 96
bytes, saving 32 bytes per object. After booting, I see about 4000 of
these and then about 17,000 after a kernel compile. With this patch, we
save around 530KB of kernel memory in the latter case. On 32-bit, the
savings are about half of this.
Signed-off-by: James Morris <jmorris@namei.org>
Acked-by: 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 'kernel')
0 files changed, 0 insertions, 0 deletions