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-rw-r--r--fs/btrfs/inode.c8
1 files changed, 8 insertions, 0 deletions
diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
index ca47f7c43ee6..b7a7a94f041d 100644
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@ -7230,6 +7230,14 @@ noinline int can_nocow_extent(struct inode *inode, u64 offset, u64 *len,
}
/*
+ * We don't need the path anymore, plus through the csum_exist_in_range()
+ * call below we will end up allocating another path. So free the path
+ * to avoid unnecessary extra memory usage.
+ */
+ btrfs_free_path(path);
+ path = NULL;
+
+ /*
* adjust disk_bytenr and num_bytes to cover just the bytes
* in this extent we are about to write. If there
* are any csums in that range we have to cow in order