Fork of hrdl's(https://git.sr.ht/~hrdl/linux)
'hrdl-pinenote-6.15rc3 branch, rebased to 6.15. hrdl's branch is itself a fork of m-weigand's (https://github.com/m-weigand/linux) v6.12 branch.
This calls unlock_up sooner in btrfs_search_slot in order to decrease the amount of work done with the higher level tree locks held. Also, it changes btrfs_tree_lock to spin for a big against the page lock before scheduling. This makes a big difference in context switch rate under highly contended workloads. Longer term, a better locking structure is needed than the page lock. Signed-off-by: Chris Mason <chris.mason@oracle.com> |
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