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authorJosh Triplett <josh@joshtriplett.org>2014-08-17 20:41:09 -0400
committerJosh Triplett <josh@joshtriplett.org>2014-08-17 20:44:24 -0400
commitd3ac21cacc24790eb45d735769f35753f5b56ceb (patch)
tree7cef2d5f86c0704b50cc163197ca4f6342c45c61 /mm
parent7d1311b93e58ed55f3a31cc8f94c4b8fe988a2b9 (diff)
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/Makefile7
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 @@
3# 3#
4 4
5mmu-y := nommu.o 5mmu-y := nommu.o
6mmu-$(CONFIG_MMU) := fremap.o gup.o highmem.o madvise.o memory.o mincore.o \ 6mmu-$(CONFIG_MMU) := fremap.o gup.o highmem.o memory.o mincore.o \
7 mlock.o mmap.o mprotect.o mremap.o msync.o rmap.o \ 7 mlock.o mmap.o mprotect.o mremap.o msync.o rmap.o \
8 vmalloc.o pagewalk.o pgtable-generic.o 8 vmalloc.o pagewalk.o pgtable-generic.o
9 9
@@ -11,7 +11,7 @@ ifdef CONFIG_CROSS_MEMORY_ATTACH
11mmu-$(CONFIG_MMU) += process_vm_access.o 11mmu-$(CONFIG_MMU) += process_vm_access.o
12endif 12endif
13 13
14obj-y := filemap.o mempool.o oom_kill.o fadvise.o \ 14obj-y := filemap.o mempool.o oom_kill.o \
15 maccess.o page_alloc.o page-writeback.o \ 15 maccess.o page_alloc.o page-writeback.o \
16 readahead.o swap.o truncate.o vmscan.o shmem.o \ 16 readahead.o swap.o truncate.o vmscan.o shmem.o \
17 util.o mmzone.o vmstat.o backing-dev.o \ 17 util.o mmzone.o vmstat.o backing-dev.o \
@@ -28,6 +28,9 @@ else
28 obj-y += bootmem.o 28 obj-y += bootmem.o
29endif 29endif
30 30
31ifdef CONFIG_MMU
32 obj-$(CONFIG_ADVISE_SYSCALLS) += fadvise.o madvise.o
33endif
31obj-$(CONFIG_HAVE_MEMBLOCK) += memblock.o 34obj-$(CONFIG_HAVE_MEMBLOCK) += memblock.o
32 35
33obj-$(CONFIG_SWAP) += page_io.o swap_state.o swapfile.o 36obj-$(CONFIG_SWAP) += page_io.o swap_state.o swapfile.o