xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

mm/mmap: move common defines to mman-common.h

Browse Source 
Two architecture that use arch specific MMAP flags are powerpc and
sparc.  We still have few flag values common across them and other
architectures.  Consolidate this in mman-common.h.

Also update the comment to indicate where to find HugeTLB specific
reserved values

Link: http://lkml.kernel.org/r/20190604090950.31417-1-aneesh.kumar@linux.ibm.com
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.ibm.com>
Reviewed-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Aneesh Kumar K.V
2019-07-16 16:30:41 -07:00
committed by Linus Torvalds
parent 22fcea6f85
commit 8aa3c927ec
4 changed files with 10 additions and 17 deletions
Download Patch File Download Diff File Expand all files Collapse all files

6
include/uapi/asm-generic/mman-common.h
View File

@@ -20,7 +20,11 @@
#define MAP_FIXED 0x10 /* Interpret addr exactly */
#define MAP_ANONYMOUS 0x20 /* don't use a file */
/* 0x0100 - 0x40000 flags are defined in asm-generic/mman.h */
/* 0x0100 - 0x4000 flags are defined in asm-generic/mman.h */
#define MAP_POPULATE 0x008000 /* populate (prefault) pagetables */
#define MAP_NONBLOCK 0x010000 /* do not block on IO */
#define MAP_STACK 0x020000 /* give out an address that is best suited for process/thread stacks */
#define MAP_HUGETLB 0x040000 /* create a huge page mapping */
#define MAP_SYNC 0x080000 /* perform synchronous page faults for the mapping */
#define MAP_FIXED_NOREPLACE 0x100000 /* MAP_FIXED which doesn't unmap underlying mapping */