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-rw-r--r--fs/xfs/xfs_iomap.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/xfs/xfs_iomap.c b/fs/xfs/xfs_iomap.c
index 912d83d8860a..b0b0f448e843 100644
--- a/fs/xfs/xfs_iomap.c
+++ b/fs/xfs/xfs_iomap.c
@@ -413,7 +413,7 @@ xfs_iomap_prealloc_size(
* have a large file on a small filesystem and the above
* lowspace thresholds are smaller than MAXEXTLEN.
*/
- while (alloc_blocks >= freesp)
+ while (alloc_blocks && alloc_blocks >= freesp)
alloc_blocks >>= 4;
}