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| author | Josh Triplett <josh@joshtriplett.org> | 2014-08-17 19:41:09 -0500 |
|---|---|---|
| committer | Josh Triplett <josh@joshtriplett.org> | 2014-08-17 19:44:24 -0500 |
| commit | d3ac21cacc24790eb45d735769f35753f5b56ceb (patch) | |
| tree | 7cef2d5f86c0704b50cc163197ca4f6342c45c61 /kernel/sys_ni.c | |
| parent | 7d1311b93e58ed55f3a31cc8f94c4b8fe988a2b9 (diff) | |
| download | lwn-d3ac21cacc24790eb45d735769f35753f5b56ceb.tar.gz lwn-d3ac21cacc24790eb45d735769f35753f5b56ceb.zip | |
mm: Support compiling out madvise and fadvise
Many embedded systems will not need these syscalls, and omitting them
saves space. Add a new EXPERT config option CONFIG_ADVISE_SYSCALLS
(default y) to support compiling them out.
bloat-o-meter:
add/remove: 0/3 grow/shrink: 0/0 up/down: 0/-2250 (-2250)
function old new delta
sys_fadvise64 57 - -57
sys_fadvise64_64 691 - -691
sys_madvise 1502 - -1502
Signed-off-by: Josh Triplett <josh@joshtriplett.org>
Diffstat (limited to 'kernel/sys_ni.c')
| -rw-r--r-- | kernel/sys_ni.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/kernel/sys_ni.c b/kernel/sys_ni.c index 391d4ddb6f4b..d4709d481053 100644 --- a/kernel/sys_ni.c +++ b/kernel/sys_ni.c @@ -156,6 +156,9 @@ cond_syscall(sys_process_vm_writev); cond_syscall(compat_sys_process_vm_readv); cond_syscall(compat_sys_process_vm_writev); cond_syscall(sys_uselib); +cond_syscall(sys_fadvise64); +cond_syscall(sys_fadvise64_64); +cond_syscall(sys_madvise); /* arch-specific weak syscall entries */ cond_syscall(sys_pciconfig_read); |