Commit b72327fc authored by Michel Lespinasse's avatar Michel Lespinasse Committed by Linus Torvalds

MMU notifier: use the new mmap locking API

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: default avatarMichel Lespinasse <walken@google.com>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Reviewed-by: default avatarDaniel Jordan <daniel.m.jordan@oracle.com>
Reviewed-by: default avatarDavidlohr Bueso <dbueso@suse.de>
Reviewed-by: default avatarLaurent Dufour <ldufour@linux.ibm.com>
Reviewed-by: default avatarVlastimil Babka <vbabka@suse.cz>
Cc: David Rientjes <rientjes@google.com>
Cc: Hugh Dickins <hughd@google.com>
Cc: Jason Gunthorpe <jgg@ziepe.ca>
Cc: Jerome Glisse <jglisse@redhat.com>
Cc: John Hubbard <jhubbard@nvidia.com>
Cc: Liam Howlett <Liam.Howlett@oracle.com>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Ying Han <yinghan@google.com>
Link: http://lkml.kernel.org/r/20200520052908.204642-3-walken@google.comSigned-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent 9740ca4e
...@@ -5,6 +5,7 @@ ...@@ -5,6 +5,7 @@
#include <linux/list.h> #include <linux/list.h>
#include <linux/spinlock.h> #include <linux/spinlock.h>
#include <linux/mm_types.h> #include <linux/mm_types.h>
#include <linux/mmap_lock.h>
#include <linux/srcu.h> #include <linux/srcu.h>
#include <linux/interval_tree.h> #include <linux/interval_tree.h>
...@@ -277,9 +278,9 @@ mmu_notifier_get(const struct mmu_notifier_ops *ops, struct mm_struct *mm) ...@@ -277,9 +278,9 @@ mmu_notifier_get(const struct mmu_notifier_ops *ops, struct mm_struct *mm)
{ {
struct mmu_notifier *ret; struct mmu_notifier *ret;
down_write(&mm->mmap_sem); mmap_write_lock(mm);
ret = mmu_notifier_get_locked(ops, mm); ret = mmu_notifier_get_locked(ops, mm);
up_write(&mm->mmap_sem); mmap_write_unlock(mm);
return ret; return ret;
} }
void mmu_notifier_put(struct mmu_notifier *subscription); void mmu_notifier_put(struct mmu_notifier *subscription);
......
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