[PATCHSET,RFC,v1.0,0/7] xfs: refactor rt extent unit conversions

Message

Darrick J. Wong Oct. 11, 2023, 6:01 p.m. UTC

Hi all,

This series replaces all the open-coded integer division and
multiplication conversions between rt blocks and rt extents with calls
to static inline helpers.  Having cleaned all that up, the helpers are
augmented to skip the expensive operations in favor of bit shifts and
masking if the rt extent size is a power of two.

If you're going to start using this code, I strongly recommend pulling
from my git trees, which are linked below.

This has been running on the djcloud for months with no problems.  Enjoy!
Comments and questions are, as always, welcome.

--D

kernel git tree:
https://git.kernel.org/cgit/linux/kernel/git/djwong/xfs-linux.git/log/?h=refactor-rt-unit-conversions

xfsprogs git tree:
https://git.kernel.org/cgit/linux/kernel/git/djwong/xfsprogs-dev.git/log/?h=refactor-rt-unit-conversions
---
 fs/xfs/libxfs/xfs_bmap.c        |   19 +++-----
 fs/xfs/libxfs/xfs_rtbitmap.c    |    4 +-
 fs/xfs/libxfs/xfs_rtbitmap.h    |   88 +++++++++++++++++++++++++++++++++++++++
 fs/xfs/libxfs/xfs_sb.c          |    2 +
 fs/xfs/libxfs/xfs_swapext.c     |    7 ++-
 fs/xfs/libxfs/xfs_trans_inode.c |    1 
 fs/xfs/libxfs/xfs_trans_resv.c  |    3 +
 fs/xfs/scrub/inode.c            |    3 +
 fs/xfs/scrub/inode_repair.c     |    3 +
 fs/xfs/scrub/rtbitmap.c         |   18 +++-----
 fs/xfs/scrub/rtsummary.c        |    4 +-
 fs/xfs/xfs_bmap_util.c          |   38 +++++++----------
 fs/xfs/xfs_fsmap.c              |   14 +++---
 fs/xfs/xfs_inode_item.c         |    3 +
 fs/xfs/xfs_ioctl.c              |    5 +-
 fs/xfs/xfs_linux.h              |   12 +++++
 fs/xfs/xfs_mount.h              |    2 +
 fs/xfs/xfs_rtalloc.c            |   16 ++++---
 fs/xfs/xfs_super.c              |    3 +
 fs/xfs/xfs_trans.c              |    9 +++-
 fs/xfs/xfs_xchgrange.c          |    4 +-
 21 files changed, 180 insertions(+), 78 deletions(-)