Add new mm flag, MMF_MSHARE.
Signed-off-by: Anthony Yznaga <anthony.yznaga@xxxxxxxxxx>
---
include/linux/mm_types.h | 2 ++
mm/mshare.c | 1 +
2 files changed, 3 insertions(+)
diff --git a/include/linux/mm_types.h b/include/linux/mm_types.h
index 5f1b2dc788e2..dfbeb50e4c9b 100644
--- a/include/linux/mm_types.h
+++ b/include/linux/mm_types.h
@@ -1642,6 +1642,8 @@ enum {
#define MMF_TOPDOWN 31 /* mm searches top down by default */
#define MMF_TOPDOWN_MASK (1 << MMF_TOPDOWN)
+#define MMF_MSHARE 32 /* mm is an mshare host mm */
+
#define MMF_INIT_MASK (MMF_DUMPABLE_MASK | MMF_DUMP_FILTER_MASK |\
MMF_DISABLE_THP_MASK | MMF_HAS_MDWE_MASK |\
MMF_VM_MERGE_ANY_MASK | MMF_TOPDOWN_MASK)
diff --git a/mm/mshare.c b/mm/mshare.c
index 8f53b8132895..4c3f6c2410d6 100644
--- a/mm/mshare.c
+++ b/mm/mshare.c
@@ -365,6 +365,7 @@ msharefs_fill_mm(struct inode *inode)
goto err_free;
}
+ set_bit(MMF_MSHARE, &mm->flags);
mm->mmap_base = mm->task_size = 0;
m_data = kzalloc(sizeof(*m_data), GFP_KERNEL);
--
2.43.5
