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authorLinux Build Service Account <lnxbuild@localhost>2019-06-30 03:26:38 -0700
committerLinux Build Service Account <lnxbuild@localhost>2019-06-30 03:26:38 -0700
commitf6f18bf58a688e45e149708a00659bd1010ef94c (patch)
treeaea1549c4c8f28ad359a92b7702481b2cb369d20 /fs/btrfs/file.c
parentc9d92a953ba0dffba643376ec463754a88db107a (diff)
parent17c66e9e49a181498ae3c75809c98fdbe630de28 (diff)
Merge 17c66e9e49a181498ae3c75809c98fdbe630de28 on remote branch
Change-Id: I49238aefe09bba152a8000c046959157c328f183
Diffstat (limited to 'fs/btrfs/file.c')
-rw-r--r--fs/btrfs/file.c12
1 files changed, 12 insertions, 0 deletions
diff --git a/fs/btrfs/file.c b/fs/btrfs/file.c
index 052973620595..d056060529f8 100644
--- a/fs/btrfs/file.c
+++ b/fs/btrfs/file.c
@@ -1901,6 +1901,18 @@ int btrfs_sync_file(struct file *file, loff_t start, loff_t end, int datasync)
u64 len;
/*
+ * If the inode needs a full sync, make sure we use a full range to
+ * avoid log tree corruption, due to hole detection racing with ordered
+ * extent completion for adjacent ranges, and assertion failures during
+ * hole detection.
+ */
+ if (test_bit(BTRFS_INODE_NEEDS_FULL_SYNC,
+ &BTRFS_I(inode)->runtime_flags)) {
+ start = 0;
+ end = LLONG_MAX;
+ }
+
+ /*
* The range length can be represented by u64, we have to do the typecasts
* to avoid signed overflow if it's [0, LLONG_MAX] eg. from fsync()
*/