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-rw-r--r--fs/btrfs/file.c10
1 files changed, 7 insertions, 3 deletions
diff --git a/fs/btrfs/file.c b/fs/btrfs/file.c
index 77061bf43edb..f76b1fd160d4 100644
--- a/fs/btrfs/file.c
+++ b/fs/btrfs/file.c
@@ -2241,6 +2241,7 @@ static int find_desired_extent(struct inode *inode, loff_t *offset, int whence)
if (lockend <= lockstart)
lockend = lockstart + root->sectorsize;
+ lockend--;
len = lockend - lockstart + 1;
len = max_t(u64, len, root->sectorsize);
@@ -2307,9 +2308,12 @@ static int find_desired_extent(struct inode *inode, loff_t *offset, int whence)
}
}
- *offset = start;
- free_extent_map(em);
- break;
+ if (!test_bit(EXTENT_FLAG_PREALLOC,
+ &em->flags)) {
+ *offset = start;
+ free_extent_map(em);
+ break;
+ }
}
}