Commit e21139c6 authored Aug 13, 2020 by Qu Wenruo Committed by David Sterba Oct 07, 2020

btrfs: cleanup calculation of lockend in lock_and_cleanup_extent_if_need()



We're just doing rounding up to sectorsize to calculate the lockend.
There is no need to do the unnecessary length calculation, just direct
round_up() is enough.

Reviewed-by: Nikolay Borisov <nborisov@suse.com>
Signed-off-by: Qu Wenruo <wqu@suse.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>

parent c4923027

fs/btrfs/file.c

+1 −3

Original line number	Diff line number	Diff line
		@@ -1477,9 +1477,7 @@ lock_and_cleanup_extent_if_need(struct btrfs_inode inode, struct page *pages,
		int ret = 0;

		start_pos = round_down(pos, fs_info->sectorsize);
		last_pos = start_pos
		+ round_up(pos + write_bytes - start_pos,
		fs_info->sectorsize) - 1;
		last_pos = round_up(pos + write_bytes, fs_info->sectorsize) - 1;

		if (start_pos < inode->vfs_inode.i_size) {
		struct btrfs_ordered_extent *ordered;

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