On Tue, Nov 12, 2019 at 04:42:44PM -0800, ira.weiny@xxxxxxxxx wrote: > From: Ira Weiny <ira.weiny@xxxxxxxxx> > > swap_activate() and swap_deactivate() have nothing to do with address > spaces. We want to be able to change the address space operations on > the fly to allow changing inode flags dynamically. > > Switching address space operations can be difficult to do reliably.[1] > Therefore, to simplify switching address space operations we reduce the > number of functions in those operations by moving swap_activate() and > swap_deactivate() out of the address space operations. > > No functionality is changed with this patch. > > This has been tested with XFS but not NFS, f2fs, or btrfs. > > Also note we move some functions to facilitate compilation. But there > are no functional changes are contained within those diffs. > > [1] https://lkml.org/lkml/2019/11/11/572 > > Cc: Dave Chinner <david@xxxxxxxxxxxxx> > Cc: linux-fsdevel@xxxxxxxxxxxxxxx > Cc: linux-kernel@xxxxxxxxxxxxxxx > Suggested-by: Jan Kara <jack@xxxxxxx> > Signed-off-by: Ira Weiny <ira.weiny@xxxxxxxxx> > > --- > Changes from V0: > Update cover letter. > fix btrfs as per Andrew's comments > change xfs_iomap_swapfile_activate() to xfs_file_swap_activate() > > Changes from V1: > Update recipients list > > > fs/btrfs/file.c | 341 +++++++++++++++++++++++++++++++++++++++++++++ > fs/btrfs/inode.c | 340 -------------------------------------------- For the btrfs part Acked-by: David Sterba <dsterba@xxxxxxxx> There's going to be a minor conflict with current 5.5 queue, the resolution is simple rename of btrfs_block_group_cache to btrfs_block_group.
