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-rw-r--r--fs/btrfs/inode.c8
1 files changed, 3 insertions, 5 deletions
diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
index dbcec1ced85a..a713d9d324b0 100644
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@ -7765,12 +7765,10 @@ static int btrfs_get_blocks_direct(struct inode *inode, sector_t iblock,
}
/*
- * this will cow the extent, if em is within [start, len], then
- * probably we've found a preallocated/existing extent, let's
- * give it a chance to use preallocated space.
+ * this will cow the extent, reset the len in case we changed
+ * it above
*/
- len = min_t(u64, bh_result->b_size, em->len - (start - em->start));
- len = ALIGN(len, fs_info->sectorsize);
+ len = bh_result->b_size;
free_extent_map(em);
em = btrfs_new_extent_direct(inode, start, len);
if (IS_ERR(em)) {