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| author | Jan Kara <jack@suse.cz> | 2017-11-01 16:36:41 +0100 |
|---|---|---|
| committer | Dan Williams <dan.j.williams@intel.com> | 2017-11-03 06:26:25 -0700 |
| commit | b6fb293f2497a9841d94f6b57bd2bb2cd222da43 (patch) | |
| tree | 9ca796e1c964fbed568e7aa68dde7c3819fa344c /include/linux/mm.h | |
| parent | f5b7b74876cff5664ea8b2ef7f002c54cd6e7c90 (diff) | |
| download | lwn-b6fb293f2497a9841d94f6b57bd2bb2cd222da43.tar.gz lwn-b6fb293f2497a9841d94f6b57bd2bb2cd222da43.zip | |
mm: Define MAP_SYNC and VM_SYNC flags
Define new MAP_SYNC flag and corresponding VMA VM_SYNC flag. As the
MAP_SYNC flag is not part of LEGACY_MAP_MASK, currently it will be
refused by all MAP_SHARED_VALIDATE map attempts and silently ignored for
everything else.
Reviewed-by: Ross Zwisler <ross.zwisler@linux.intel.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Diffstat (limited to 'include/linux/mm.h')
| -rw-r--r-- | include/linux/mm.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/mm.h b/include/linux/mm.h index ca72b67153d5..5411cb7442de 100644 --- a/include/linux/mm.h +++ b/include/linux/mm.h @@ -189,6 +189,7 @@ extern unsigned int kobjsize(const void *objp); #define VM_ACCOUNT 0x00100000 /* Is a VM accounted object */ #define VM_NORESERVE 0x00200000 /* should the VM suppress accounting */ #define VM_HUGETLB 0x00400000 /* Huge TLB Page VM */ +#define VM_SYNC 0x00800000 /* Synchronous page faults */ #define VM_ARCH_1 0x01000000 /* Architecture-specific flag */ #define VM_WIPEONFORK 0x02000000 /* Wipe VMA contents in child. */ #define VM_DONTDUMP 0x04000000 /* Do not include in the core dump */ |