From: Andrey Ryabinin <aryabinin@virtuozzo.com>
To: Alexander Viro <viro@zeniv.linux.org.uk>,
<linux-fsdevel@vger.kernel.org>
Cc: Andrey Ryabinin <aryabinin@virtuozzo.com>,
Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>,
Eric Van Hensbergen <ericvh@gmail.com>,
Ron Minnich <rminnich@sandia.gov>,
Latchesar Ionkov <lucho@ionkov.net>,
Steve French <sfrench@samba.org>,
Matthew Wilcox <mawilcox@microsoft.com>,
Ross Zwisler <ross.zwisler@linux.intel.com>,
Trond Myklebust <trond.myklebust@primarydata.com>,
Anna Schumaker <anna.schumaker@netapp.com>,
Andrew Morton <akpm@linux-foundation.org>,
Jan Kara <jack@suse.cz>, Jens Axboe <axboe@kernel.dk>,
Johannes Weiner <hannes@cmpxchg.org>,
Alexey Kuznetsov <kuznet@virtuozzo.com>,
Christoph Hellwig <hch@lst.de>,
<v9fs-developer@lists.sourceforge.net>,
<linux-kernel@vger.kernel.org>, <linux-cifs@vger.kernel.org>,
<samba-technical@lists.samba.org>, <linux-nfs@vger.kernel.org>,
<linux-mm@kvack.org>
Subject: [PATCH 2/4] fs/block_dev: always invalidate cleancache in invalidate_bdev()
Date: Fri, 14 Apr 2017 17:07:51 +0300 [thread overview]
Message-ID: <20170414140753.16108-3-aryabinin@virtuozzo.com> (raw)
In-Reply-To: <20170414140753.16108-1-aryabinin@virtuozzo.com>
invalidate_bdev() calls cleancache_invalidate_inode() iff ->nrpages != 0
which doen't make any sense.
Make invalidate_bdev() always invalidate cleancache data.
Fixes: c515e1fd361c ("mm/fs: add hooks to support cleancache")
Signed-off-by: Andrey Ryabinin <aryabinin@virtuozzo.com>
---
fs/block_dev.c | 11 +++++------
1 file changed, 5 insertions(+), 6 deletions(-)
diff --git a/fs/block_dev.c b/fs/block_dev.c
index e405d8e..7af4787 100644
--- a/fs/block_dev.c
+++ b/fs/block_dev.c
@@ -103,12 +103,11 @@ void invalidate_bdev(struct block_device *bdev)
{
struct address_space *mapping = bdev->bd_inode->i_mapping;
- if (mapping->nrpages == 0)
- return;
-
- invalidate_bh_lrus();
- lru_add_drain_all(); /* make sure all lru add caches are flushed */
- invalidate_mapping_pages(mapping, 0, -1);
+ if (mapping->nrpages) {
+ invalidate_bh_lrus();
+ lru_add_drain_all(); /* make sure all lru add caches are flushed */
+ invalidate_mapping_pages(mapping, 0, -1);
+ }
/* 99% of the time, we don't need to flush the cleancache on the bdev.
* But, for the strange corners, lets be cautious
*/
--
2.10.2
next prev parent reply other threads:[~2017-04-14 14:08 UTC|newest]
Thread overview: 37+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-04-14 14:07 [PATCH 0/4] Properly invalidate data in the cleancache Andrey Ryabinin
2017-04-14 14:07 ` [PATCH 1/4] fs: fix data invalidation in the cleancache during direct IO Andrey Ryabinin
2017-04-18 19:38 ` Ross Zwisler
2017-04-19 15:11 ` Andrey Ryabinin
2017-04-19 19:28 ` Ross Zwisler
2017-04-20 14:35 ` Jan Kara
2017-04-20 14:44 ` Jan Kara
2017-04-20 19:14 ` Ross Zwisler
2017-04-21 3:44 ` [PATCH 1/2] dax: prevent invalidation of mapped DAX entries Ross Zwisler
2017-04-21 3:44 ` [PATCH 2/2] dax: fix data corruption due to stale mmap reads Ross Zwisler
2017-04-25 11:10 ` Jan Kara
2017-04-25 22:59 ` Ross Zwisler
2017-04-26 8:52 ` Jan Kara
2017-04-26 22:52 ` Ross Zwisler
2017-04-27 7:26 ` Jan Kara
2017-05-01 22:38 ` Ross Zwisler
2017-05-04 9:12 ` Jan Kara
2017-05-01 22:59 ` Dan Williams
2017-04-25 10:10 ` [PATCH 1/2] dax: prevent invalidation of mapped DAX entries Jan Kara
2017-05-01 16:54 ` Ross Zwisler
2017-04-18 22:46 ` [PATCH 1/4] fs: fix data invalidation in the cleancache during direct IO Andrew Morton
2017-04-19 15:15 ` Andrey Ryabinin
2017-04-14 14:07 ` Andrey Ryabinin [this message]
2017-04-18 18:51 ` [PATCH 2/4] fs/block_dev: always invalidate cleancache in invalidate_bdev() Nikolay Borisov
2017-04-19 13:22 ` Andrey Ryabinin
2017-04-14 14:07 ` [PATCH 3/4] mm/truncate: bail out early from invalidate_inode_pages2_range() if mapping is empty Andrey Ryabinin
2017-04-14 14:07 ` [PATCH 4/4] mm/truncate: avoid pointless cleancache_invalidate_inode() calls Andrey Ryabinin
2017-04-18 15:24 ` [PATCH 0/4] Properly invalidate data in the cleancache Konrad Rzeszutek Wilk
2017-04-24 16:41 ` [PATCH v2 " Andrey Ryabinin
2017-04-24 16:41 ` [PATCH v2 1/4] fs: fix data invalidation in the cleancache during direct IO Andrey Ryabinin
2017-04-25 8:25 ` Jan Kara
2017-04-24 16:41 ` [PATCH v2 2/4] fs/block_dev: always invalidate cleancache in invalidate_bdev() Andrey Ryabinin
2017-04-25 8:34 ` Jan Kara
2017-04-24 16:41 ` [PATCH v2 3/4] mm/truncate: bail out early from invalidate_inode_pages2_range() if mapping is empty Andrey Ryabinin
2017-04-25 8:37 ` Jan Kara
2017-04-24 16:41 ` [PATCH v2 4/4] mm/truncate: avoid pointless cleancache_invalidate_inode() calls Andrey Ryabinin
2017-04-25 8:41 ` Jan Kara
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