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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 /mm | |
| parent | 7d1311b93e58ed55f3a31cc8f94c4b8fe988a2b9 (diff) | |
| download | blackbird-op-linux-d3ac21cacc24790eb45d735769f35753f5b56ceb.tar.gz blackbird-op-linux-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 'mm')
| -rw-r--r-- | mm/Makefile | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/mm/Makefile b/mm/Makefile index 632ae77e6070..fe7a053c0f45 100644 --- a/mm/Makefile +++ b/mm/Makefile @@ -3,7 +3,7 @@ # mmu-y := nommu.o -mmu-$(CONFIG_MMU) := fremap.o gup.o highmem.o madvise.o memory.o mincore.o \ +mmu-$(CONFIG_MMU) := fremap.o gup.o highmem.o memory.o mincore.o \ mlock.o mmap.o mprotect.o mremap.o msync.o rmap.o \ vmalloc.o pagewalk.o pgtable-generic.o @@ -11,7 +11,7 @@ ifdef CONFIG_CROSS_MEMORY_ATTACH mmu-$(CONFIG_MMU) += process_vm_access.o endif -obj-y := filemap.o mempool.o oom_kill.o fadvise.o \ +obj-y := filemap.o mempool.o oom_kill.o \ maccess.o page_alloc.o page-writeback.o \ readahead.o swap.o truncate.o vmscan.o shmem.o \ util.o mmzone.o vmstat.o backing-dev.o \ @@ -28,6 +28,9 @@ else obj-y += bootmem.o endif +ifdef CONFIG_MMU + obj-$(CONFIG_ADVISE_SYSCALLS) += fadvise.o madvise.o +endif obj-$(CONFIG_HAVE_MEMBLOCK) += memblock.o obj-$(CONFIG_SWAP) += page_io.o swap_state.o swapfile.o |
