* Patch "fs/block_dev: always invalidate cleancache in invalidate_bdev()" has been added to the 4.11-stable tree
@ 2017-05-17 15:55 gregkh
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From: gregkh @ 2017-05-17 15:55 UTC (permalink / raw)
To: aryabinin, akpm, axboe, gregkh, hannes, hch, jack, konrad.wilk,
kuznet, n.borisov.lkml, ross.zwisler, torvalds, viro
Cc: stable, stable-commits
This is a note to let you know that I've just added the patch titled
fs/block_dev: always invalidate cleancache in invalidate_bdev()
to the 4.11-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
fs-block_dev-always-invalidate-cleancache-in-invalidate_bdev.patch
and it can be found in the queue-4.11 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@vger.kernel.org> know about it.
>From a5f6a6a9c72eac38a7fadd1a038532bc8516337c Mon Sep 17 00:00:00 2001
From: Andrey Ryabinin <aryabinin@virtuozzo.com>
Date: Wed, 3 May 2017 14:56:02 -0700
Subject: fs/block_dev: always invalidate cleancache in invalidate_bdev()
From: Andrey Ryabinin <aryabinin@virtuozzo.com>
commit a5f6a6a9c72eac38a7fadd1a038532bc8516337c upstream.
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>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
fs/block_dev.c | 11 +++++------
1 file changed, 5 insertions(+), 6 deletions(-)
--- a/fs/block_dev.c
+++ b/fs/block_dev.c
@@ -103,12 +103,11 @@ void invalidate_bdev(struct block_device
{
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
*/
Patches currently in stable-queue which might be from aryabinin@virtuozzo.com are
queue-4.11/fs-block_dev-always-invalidate-cleancache-in-invalidate_bdev.patch
queue-4.11/mm-prevent-potential-recursive-reclaim-due-to-clearing-pf_memalloc.patch
queue-4.11/fs-fix-data-invalidation-in-the-cleancache-during-direct-io.patch
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2017-05-17 15:55 Patch "fs/block_dev: always invalidate cleancache in invalidate_bdev()" has been added to the 4.11-stable tree gregkh
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