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xfs: create incore rt allocation groups [v5.5 04/10]

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Add in-memory data structures for sharding the realtime volume into
 independent allocation groups.  For existing filesystems, the entire rt
 volume is modelled as having a single large group, with (potentially) a
 number of rt extents exceeding 2^32 blocks, though these are not likely
 to exist because the codebase has been a bit broken for decades.  The
 next series fills in the ondisk format and other supporting structures.
 
 With a bit of luck, this should all go splendidly.
 
 Signed-off-by: Darrick J. Wong <djwong@kernel.org>
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Merge tag 'incore-rtgroups-6.13_2024-11-05' of https://git.kernel.org/pub/scm/linux/kernel/git/djwong/xfs-linux into staging-merge

xfs: create incore rt allocation groups [v5.5 04/10]

Add in-memory data structures for sharding the realtime volume into
independent allocation groups.  For existing filesystems, the entire rt
volume is modelled as having a single large group, with (potentially) a
number of rt extents exceeding 2^32 blocks, though these are not likely
to exist because the codebase has been a bit broken for decades.  The
next series fills in the ondisk format and other supporting structures.

With a bit of luck, this should all go splendidly.

Signed-off-by: Darrick J. Wong <djwong@kernel.org>
This commit is contained in:
Carlos Maiolino 2024-11-12 10:59:34 +01:00
commit 6b3582aca3
36 changed files with 2010 additions and 700 deletions
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