On Thu, Oct 14, 2021 at 01:17:28PM -0700, Darrick J. Wong wrote: > From: Darrick J. Wong <djwong@xxxxxxxxxx> > > Split out the btree level information into a separate struct and put it > at the end of the cursor structure as a VLA. Files with huge data forks > (and in the future, the realtime rmap btree) will require the ability to > support many more levels than a per-AG btree cursor, which means that > we're going to create per-btree type cursor caches to conserve memory > for the more common case. > > Note that a subsequent patch actually introduces dynamic cursor heights. > This one merely rearranges the structure to prepare for that. > > Signed-off-by: Darrick J. Wong <djwong@xxxxxxxxxx> > Reviewed-by: Chandan Babu R <chandan.babu@xxxxxxxxxx> > Reviewed-by: Christoph Hellwig <hch@xxxxxx> > --- > fs/xfs/libxfs/xfs_alloc.c | 6 +- > fs/xfs/libxfs/xfs_bmap.c | 10 +-- > fs/xfs/libxfs/xfs_btree.c | 168 +++++++++++++++++++++++---------------------- > fs/xfs/libxfs/xfs_btree.h | 33 +++++++-- > fs/xfs/scrub/bitmap.c | 22 +++--- > fs/xfs/scrub/bmap.c | 2 - > fs/xfs/scrub/btree.c | 47 +++++++------ > fs/xfs/scrub/trace.c | 4 + > fs/xfs/scrub/trace.h | 10 +-- > fs/xfs/xfs_super.c | 2 - > fs/xfs/xfs_trace.h | 2 - > 11 files changed, 167 insertions(+), 139 deletions(-) LGTM. Reviewed-by: Dave Chinner <dchinner@xxxxxxxxxx> -- Dave Chinner david@xxxxxxxxxxxxx
