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From: Michel Lespinasse <walken@google.com>
To: Andrew Morton <akpm@linux-foundation.org>, linux-mm <linux-mm@kvack.org>
Cc: LKML <linux-kernel@vger.kernel.org>,
	Peter Zijlstra <peterz@infradead.org>,
	Laurent Dufour <ldufour@linux.ibm.com>,
	Vlastimil Babka <vbabka@suse.cz>,
	Matthew Wilcox <willy@infradead.org>,
	Liam Howlett <Liam.Howlett@oracle.com>,
	Jerome Glisse <jglisse@redhat.com>,
	Davidlohr Bueso <dave@stgolabs.net>,
	David Rientjes <rientjes@google.com>,
	Hugh Dickins <hughd@google.com>, Ying Han <yinghan@google.com>,
	Jason Gunthorpe <jgg@ziepe.ca>,
	Markus Elfring <Markus.Elfring@web.de>,
	Michel Lespinasse <walken@google.com>
Subject: [PATCH v2 02/10] MMU notifier: use the new mmap locking API
Date: Thu, 26 Mar 2020 19:10:50 -0700	[thread overview]
Message-ID: <20200327021058.221911-3-walken@google.com> (raw)
In-Reply-To: <20200327021058.221911-1-walken@google.com>

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>
---
 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.rc2.310.g2932bb562d-goog


  parent reply	other threads:[~2020-03-27  2:11 UTC|newest]

Thread overview: 41+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-03-27  2:10 [PATCH v2 00/10] Add a new mmap locking API wrapping mmap_sem calls Michel Lespinasse
2020-03-27  2:10 ` Michel Lespinasse
2020-03-27  2:10 ` [PATCH v2 01/10] mmap locking API: initial implementation as rwsem wrappers Michel Lespinasse
2020-03-27  2:10   ` Michel Lespinasse
2020-03-27 12:16   ` Jason Gunthorpe
2020-03-27 21:52     ` Michel Lespinasse
2020-03-27 21:52       ` Michel Lespinasse
2020-03-27  2:10 ` Michel Lespinasse [this message]
2020-03-27  2:10   ` [PATCH v2 02/10] MMU notifier: use the new mmap locking API Michel Lespinasse
2020-03-27  2:10 ` [PATCH v2 03/10] DMA reservations: " Michel Lespinasse
2020-03-27  2:10   ` Michel Lespinasse
2020-03-27  2:10 ` [PATCH v2 04/10] mmap locking API: use coccinelle to convert mmap_sem rwsem call sites Michel Lespinasse
2020-03-27  2:10   ` Michel Lespinasse
2020-03-27  7:22   ` Markus Elfring
2020-03-27  7:22     ` [Cocci] " Markus Elfring
2020-03-27  7:44     ` Michel Lespinasse
2020-03-27  7:44       ` [Cocci] " Michel Lespinasse
2020-03-27  7:44       ` Michel Lespinasse
2020-03-27  8:00       ` [v2 " Markus Elfring
2020-03-27  8:00         ` [Cocci] " Markus Elfring
2020-03-27  8:08         ` Michel Lespinasse
2020-03-27  8:08           ` [Cocci] " Michel Lespinasse
2020-03-27  8:08           ` Michel Lespinasse
2020-03-27  2:10 ` [PATCH v2 05/10] mmap locking API: convert mmap_sem call sites missed by coccinelle Michel Lespinasse
2020-03-27  2:10   ` Michel Lespinasse
2020-03-27  8:21   ` Markus Elfring
2020-03-27  8:21     ` [Cocci] " Markus Elfring
2020-03-27  2:10 ` [PATCH v2 06/10] mmap locking API: convert nested write lock sites Michel Lespinasse
2020-03-27  2:10   ` Michel Lespinasse
2020-03-27  2:10 ` [PATCH v2 07/10] mmap locking API: add mmap_read_release() and mmap_read_unlock_non_owner() Michel Lespinasse
2020-03-27  2:10   ` Michel Lespinasse
2020-03-27  4:46   ` Davidlohr Bueso
2020-03-27  5:09     ` Michel Lespinasse
2020-03-27  5:09       ` Michel Lespinasse
2020-03-27  2:10 ` [PATCH v2 08/10] mmap locking API: add MMAP_LOCK_INITIALIZER Michel Lespinasse
2020-03-27  2:10   ` Michel Lespinasse
2020-03-27  2:10 ` [PATCH v2 09/10] mmap locking API: use lockdep_assert_held Michel Lespinasse
2020-03-27  2:10   ` Michel Lespinasse
2020-03-27  4:48   ` Davidlohr Bueso
2020-03-27  2:10 ` [PATCH v2 10/10] mmap locking API: rename mmap_sem to mmap_lock Michel Lespinasse
2020-03-27  2:10   ` Michel Lespinasse

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