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authorLinus Torvalds <torvalds@linux-foundation.org>2019-07-26 19:20:34 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2019-07-26 19:20:34 -0700
commit5168afe6ef596eaf2ff7a533b780c79ce14445e4 (patch)
treea473fae3e61e99599e5da1deae868dda518ebdc5
parent40233e7c447367ffc615b524187970732848d5e3 (diff)
parentc6c84f78e2f77be37b9a150ed33be992198741f0 (diff)
Merge tag 'for-linus-20190726-2' of git://git.kernel.dk/linux-block
Pull block DMA segment fix from Jens Axboe: "Here's the virtual boundary segment size fix" * tag 'for-linus-20190726-2' of git://git.kernel.dk/linux-block: block: fix max segment size handling in blk_queue_virt_boundary
-rw-r--r--block/blk-settings.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/block/blk-settings.c b/block/blk-settings.c
index 2ae348c101a0..2c1831207a8f 100644
--- a/block/blk-settings.c
+++ b/block/blk-settings.c
@@ -752,7 +752,8 @@ void blk_queue_virt_boundary(struct request_queue *q, unsigned long mask)
* page (which might not be idential to the Linux PAGE_SIZE). Because
* of that they are not limited by our notion of "segment size".
*/
- q->limits.max_segment_size = UINT_MAX;
+ if (mask)
+ q->limits.max_segment_size = UINT_MAX;
}
EXPORT_SYMBOL(blk_queue_virt_boundary);