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authorPaolo Bonzini <pbonzini@redhat.com>2020-04-21 09:37:13 -0400
committerPaolo Bonzini <pbonzini@redhat.com>2020-04-21 09:37:13 -0400
commit3bda03865fcaf5e30248bf4b7b37a81f6966caf9 (patch)
tree40e1edb696326bfbd028afc271e7272d87b6b506 /fs/jbd2/commit.c
parent7f4b5cde24094127ace370c3c6b82fef65d9f71f (diff)
parent2a173ec993baa6a97e7b0fb89240200a88d90746 (diff)
Merge tag 'kvm-s390-master-5.7-2' of git://git.kernel.org/pub/scm/linux/kernel/git/kvms390/linux into kvm-master
KVM: s390: Fix for 5.7 and maintainer update - Silence false positive lockdep warning - add Claudio as reviewer
Diffstat (limited to 'fs/jbd2/commit.c')
-rw-r--r--fs/jbd2/commit.c7
1 files changed, 4 insertions, 3 deletions
diff --git a/fs/jbd2/commit.c b/fs/jbd2/commit.c
index 27373f5792a4..e855d8260433 100644
--- a/fs/jbd2/commit.c
+++ b/fs/jbd2/commit.c
@@ -997,9 +997,10 @@ restart_loop:
* journalled data) we need to unmap buffer and clear
* more bits. We also need to be careful about the check
* because the data page mapping can get cleared under
- * out hands, which alse need not to clear more bits
- * because the page and buffers will be freed and can
- * never be reused once we are done with them.
+ * our hands. Note that if mapping == NULL, we don't
+ * need to make buffer unmapped because the page is
+ * already detached from the mapping and buffers cannot
+ * get reused.
*/
mapping = READ_ONCE(bh->b_page->mapping);
if (mapping && !sb_is_blkdev_sb(mapping->host->i_sb)) {