| Message ID | 20200415004353.130248-3-walken@google.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | Add a new mmap locking API wrapping mmap_sem calls | expand |
On Tue, 14 Apr 2020, Michel Lespinasse wrote: >This use is converted manually ahead of the next patch in the series, >as it requires including a new header which the automated conversion >would miss. > >Signed-off-by: Michel Lespinasse <walken@google.com> >Reviewed-by: Daniel Jordan <daniel.m.jordan@oracle.com> Reviewed-by: Davidlohr Bueso <dbueso@suse.de> >--- > include/linux/mmu_notifier.h | 5 +++-- > 1 file changed, 3 insertions(+), 2 deletions(-) > >diff --git a/include/linux/mmu_notifier.h b/include/linux/mmu_notifier.h >index 736f6918335e..2f462710a1a4 100644 >--- a/include/linux/mmu_notifier.h >+++ b/include/linux/mmu_notifier.h >@@ -5,6 +5,7 @@ > #include <linux/list.h> > #include <linux/spinlock.h> > #include <linux/mm_types.h> >+#include <linux/mmap_lock.h> > #include <linux/srcu.h> > #include <linux/interval_tree.h> > >@@ -277,9 +278,9 @@ mmu_notifier_get(const struct mmu_notifier_ops *ops, struct mm_struct *mm) > { > struct mmu_notifier *ret; > >- down_write(&mm->mmap_sem); >+ mmap_write_lock(mm); > ret = mmu_notifier_get_locked(ops, mm); >- up_write(&mm->mmap_sem); >+ mmap_write_unlock(mm); > return ret; > } > void mmu_notifier_put(struct mmu_notifier *subscription); >-- >2.26.0.110.g2183baf09c-goog >
diff --git a/include/linux/mmu_notifier.h b/include/linux/mmu_notifier.h index 736f6918335e..2f462710a1a4 100644 --- a/include/linux/mmu_notifier.h +++ b/include/linux/mmu_notifier.h @@ -5,6 +5,7 @@ #include <linux/list.h> #include <linux/spinlock.h> #include <linux/mm_types.h> +#include <linux/mmap_lock.h> #include <linux/srcu.h> #include <linux/interval_tree.h> @@ -277,9 +278,9 @@ mmu_notifier_get(const struct mmu_notifier_ops *ops, struct mm_struct *mm) { struct mmu_notifier *ret; - down_write(&mm->mmap_sem); + mmap_write_lock(mm); ret = mmu_notifier_get_locked(ops, mm); - up_write(&mm->mmap_sem); + mmap_write_unlock(mm); return ret; } void mmu_notifier_put(struct mmu_notifier *subscription);