NFSv4: don't require lock for get_renew_cred or get_machine_cred

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This lock is no longer necessary.

If nfs4_get_renew_cred() needs to hunt through the open-state
creds for a user cred, it still takes the lock to stablize
the rbtree, but otherwise there are no races.

Note that this completely removes the lock from nfs4_renew_state().
It appears that the original need for the locking here was removed
long ago, and there is no longer anything to protect.

Signed-off-by: NeilBrown <neilb@suse.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>

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This commit is contained in:

NeilBrown 2018-12-03 11:30:30 +11:00 • committed by Anna Schumaker

parent a534ecb013

commit f15e1e8bc6

4 changed files with 16 additions and 25 deletions

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6

fs/nfs/nfs4_fs.h

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4

fs/nfs/nfs4proc.c

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5

fs/nfs/nfs4renewd.c

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26

fs/nfs/nfs4state.c

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