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Commit ce397c06 authored by Liu Hui's avatar Liu Hui Committed by Chris Mason
Browse files

Btrfs: Fix cow semantic in run_delalloc_nocow() 

The file preallocation code reversed the logic to force nodatacow.
This fixes it.
parent ea6a478e

fs/btrfs/inode.c

+2 −2
Original line number Diff line number Diff line
@@ -1114,10 +1114,10 @@ static int run_delalloc_range(struct inode *inode, struct page *locked_page, 
	if (btrfs_test_opt(root, NODATACOW) ||

	    btrfs_test_flag(inode, NODATACOW))

		ret = run_delalloc_nocow(inode, locked_page, start, end,

					 page_started, 0, nr_written);

                                        page_started, 1, nr_written);

	else if (btrfs_test_flag(inode, PREALLOC))

		ret = run_delalloc_nocow(inode, locked_page, start, end,

					 page_started, 1, nr_written);

                                        page_started, 0, nr_written);

	else

		ret = cow_file_range_async(inode, locked_page, start, end,

				     page_started, nr_written);