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authorJosh Triplett <josh@joshtriplett.org>2014-08-17 19:41:09 -0500
committerJosh Triplett <josh@joshtriplett.org>2014-08-17 19:44:24 -0500
commitd3ac21cacc24790eb45d735769f35753f5b56ceb (patch)
tree7cef2d5f86c0704b50cc163197ca4f6342c45c61 /kernel/sys_ni.c
parent7d1311b93e58ed55f3a31cc8f94c4b8fe988a2b9 (diff)
downloadlwn-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.c3
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);