Commit bfc9d71a authored by Filipe Manana's avatar Filipe Manana Committed by David Sterba
Browse files

btrfs: set EXTENT_NORESERVE before range unlock in btrfs_truncate_block() 



Set the EXTENT_NORESERVE bit in the io tree before unlocking the range so
that we can use the cached state and speedup the operation, since the
unlock operation releases the cached state.

Reviewed-by: default avatarJohannes Thumshirn <johannes.thumshirn@wdc.com>
Reviewed-by: default avatarQu Wenruo <wqu@suse.com>
Signed-off-by: default avatarFilipe Manana <fdmanana@suse.com>
Signed-off-by: default avatarDavid Sterba <dsterba@suse.com>
parent 5ae011bc

fs/btrfs/inode.c

+3 −2
Original line number Diff line number Diff line
@@ -5002,11 +5002,12 @@ int btrfs_truncate_block(struct btrfs_inode *inode, u64 offset, u64 start, u64 e 
				  block_end + 1 - block_start);

	btrfs_folio_set_dirty(fs_info, folio, block_start,

			      block_end + 1 - block_start);

	btrfs_unlock_extent(io_tree, block_start, block_end, &cached_state);



	if (only_release_metadata)

		btrfs_set_extent_bit(&inode->io_tree, block_start, block_end,

				     EXTENT_NORESERVE, NULL);

				     EXTENT_NORESERVE, &cached_state);



	btrfs_unlock_extent(io_tree, block_start, block_end, &cached_state);



out_unlock:

	if (ret) {