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| author | Andrey Ryabinin <aryabinin@virtuozzo.com> | 2017-05-03 14:56:02 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2017-05-03 15:52:12 -0700 |
| commit | a5f6a6a9c72eac38a7fadd1a038532bc8516337c (patch) | |
| tree | 47e96c453e48f766e94db9be4cf77dca2b6f4dcc /fs/block_dev.c | |
| parent | 55635ba76ef91f26b418702ace5e6287eb727f6a (diff) | |
| download | lwn-a5f6a6a9c72eac38a7fadd1a038532bc8516337c.tar.gz lwn-a5f6a6a9c72eac38a7fadd1a038532bc8516337c.zip | |
fs/block_dev: always invalidate cleancache in invalidate_bdev()
invalidate_bdev() calls cleancache_invalidate_inode() iff ->nrpages != 0
which doen't make any sense.
Make sure that invalidate_bdev() always calls cleancache_invalidate_inode()
regardless of mapping->nrpages value.
Fixes: c515e1fd361c ("mm/fs: add hooks to support cleancache")
Link: http://lkml.kernel.org/r/20170424164135.22350-3-aryabinin@virtuozzo.com
Signed-off-by: Andrey Ryabinin <aryabinin@virtuozzo.com>
Reviewed-by: Jan Kara <jack@suse.cz>
Acked-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Cc: Alexander Viro <viro@zeniv.linux.org.uk>
Cc: Ross Zwisler <ross.zwisler@linux.intel.com>
Cc: Jens Axboe <axboe@kernel.dk>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Alexey Kuznetsov <kuznet@virtuozzo.com>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Nikolay Borisov <n.borisov.lkml@gmail.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'fs/block_dev.c')
| -rw-r--r-- | fs/block_dev.c | 11 |
1 files changed, 5 insertions, 6 deletions
diff --git a/fs/block_dev.c b/fs/block_dev.c index 9ccabe3bb7de..0d435c794d76 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 */ |