nfsd: give block_delegation and delegation_blocked its own spinlock

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The state lock can be fairly heavily contended, and there's no reason
that nfs4_file lookups and delegation_blocked should be mutually
exclusive.  Let's give the new block_delegation code its own spinlock.
It does mean that we'll need to take a different lock in the delegation
break code, but that's not generally as critical to performance.

Cc: Neil Brown <neilb@suse.de>
Signed-off-by: Jeff Layton <jlayton@primarydata.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>

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Jeff Layton 2014-07-25 07:34:26 -04:00 • committed by J. Bruce Fields

parent 0b26693c56

commit f54fe962b8

1 changed files with 11 additions and 10 deletions

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fs/nfsd/nfs4state.c

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