diff options
| author | Andrea Arcangeli <[email protected]> | 2017-02-22 15:42:37 -0800 |
|---|---|---|
| committer | Linus Torvalds <[email protected]> | 2017-02-22 16:41:28 -0800 |
| commit | 90794bf19dc19691a16b71bcd75c04094d9e392d (patch) | |
| tree | 96c80c3f2d4b0aa5b72ab5965269e7050fec4185 /include/linux | |
| parent | 72f87654c69690ff4721bd9b4a39983f971de9a5 (diff) | |
userfaultfd: non-cooperative: optimize mremap_userfaultfd_complete()
Optimize the mremap_userfaultfd_complete() interface to pass only the
vm_userfaultfd_ctx pointer through the stack as a microoptimization.
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Andrea Arcangeli <[email protected]>
Reported-by: Hillf Danton <[email protected]>
Acked-by: Mike Rapoport <[email protected]>
Cc: "Dr. David Alan Gilbert" <[email protected]>
Cc: Michael Rapoport <[email protected]>
Cc: Mike Kravetz <[email protected]>
Cc: Pavel Emelyanov <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/userfaultfd_k.h | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/include/linux/userfaultfd_k.h b/include/linux/userfaultfd_k.h index 7f318a46044b..78ec197e8b47 100644 --- a/include/linux/userfaultfd_k.h +++ b/include/linux/userfaultfd_k.h @@ -57,7 +57,7 @@ extern void dup_userfaultfd_complete(struct list_head *); extern void mremap_userfaultfd_prep(struct vm_area_struct *, struct vm_userfaultfd_ctx *); -extern void mremap_userfaultfd_complete(struct vm_userfaultfd_ctx, +extern void mremap_userfaultfd_complete(struct vm_userfaultfd_ctx *, unsigned long from, unsigned long to, unsigned long len); @@ -100,7 +100,7 @@ static inline void mremap_userfaultfd_prep(struct vm_area_struct *vma, { } -static inline void mremap_userfaultfd_complete(struct vm_userfaultfd_ctx ctx, +static inline void mremap_userfaultfd_complete(struct vm_userfaultfd_ctx *ctx, unsigned long from, unsigned long to, unsigned long len) |