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authorJan Kara <jack@suse.cz>2017-11-01 18:36:41 +0300
committerDan Williams <dan.j.williams@intel.com>2017-11-03 16:26:25 +0300
commitb6fb293f2497a9841d94f6b57bd2bb2cd222da43 (patch)
tree9ca796e1c964fbed568e7aa68dde7c3819fa344c /fs/proc/task_mmu.c
parentf5b7b74876cff5664ea8b2ef7f002c54cd6e7c90 (diff)
downloadlinux-b6fb293f2497a9841d94f6b57bd2bb2cd222da43.tar.xz
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 'fs/proc/task_mmu.c')
-rw-r--r--fs/proc/task_mmu.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/fs/proc/task_mmu.c b/fs/proc/task_mmu.c
index 5589b4bd4b85..ea78b37deeaa 100644
--- a/fs/proc/task_mmu.c
+++ b/fs/proc/task_mmu.c
@@ -664,6 +664,7 @@ static void show_smap_vma_flags(struct seq_file *m, struct vm_area_struct *vma)
[ilog2(VM_ACCOUNT)] = "ac",
[ilog2(VM_NORESERVE)] = "nr",
[ilog2(VM_HUGETLB)] = "ht",
+ [ilog2(VM_SYNC)] = "sf",
[ilog2(VM_ARCH_1)] = "ar",
[ilog2(VM_WIPEONFORK)] = "wf",
[ilog2(VM_DONTDUMP)] = "dd",