diff options
| author | Peter Xu <peterx@redhat.com> | 2020-08-21 19:49:58 -0400 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2020-09-04 09:25:20 -0700 |
| commit | 798a6b87ecd72828a6c6b5469aaa2032a57e92b7 (patch) | |
| tree | 12c67139a23f97deb577f098b320c787c99a25b9 /mm/memory.c | |
| parent | a308c71bf1e6e19cc2e4ced31853ee0fc7cb439a (diff) | |
mm: Add PGREUSE counter
This accounts for wp_page_reuse() case, where we reused a page for COW.
Signed-off-by: Peter Xu <peterx@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/memory.c')
| -rw-r--r-- | mm/memory.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/mm/memory.c b/mm/memory.c index 56ae945c6845..20d93001ef93 100644 --- a/mm/memory.c +++ b/mm/memory.c @@ -2619,6 +2619,7 @@ static inline void wp_page_reuse(struct vm_fault *vmf) if (ptep_set_access_flags(vma, vmf->address, vmf->pte, entry, 1)) update_mmu_cache(vma, vmf->address, vmf->pte); pte_unmap_unlock(vmf->pte, vmf->ptl); + count_vm_event(PGREUSE); } /* |