dlm: use rcu to avoid an extra rsb struct lookup

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Use rcu to free rsb structs, and hold the rcu read lock
while looking up rsb structs.  This allows us to avoid an
extra hash table lookup for an rsb.  A new rsb flag HASHED
is added which is set while the rsb is in the hash table.
This flag is checked in place of repeating the hash table
lookup.

Signed-off-by: Alexander Aring <aahringo@redhat.com>
Signed-off-by: David Teigland <teigland@redhat.com>

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Alexander Aring 2024-06-10 15:26:03 -05:00 • committed by David Teigland

parent c217adfc8c

commit 01fdeca1cc

3 changed files with 96 additions and 16 deletions

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2

fs/dlm/dlm_internal.h

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102

fs/dlm/lock.c

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8

fs/dlm/memory.c

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