NFSd: fix locking in nfsd_forget_delegations()

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This patch adds recall_lock hold to nfsd_forget_delegations() to protect
nfsd_process_n_delegations() call.
Also, looks like it would be better to collect delegations to some local
on-stack list, and then unhash collected list. This split allows to
simplify locking, because delegation traversing is protected by recall_lock,
when delegation unhash is protected by client_mutex.

Signed-off-by: Stanislav Kinsbursky <skinsbursky@parallels.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>

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Stanislav Kinsbursky 2012-05-25 18:38:50 +04:00 • committed by J. Bruce Fields

parent 5559b50acd

commit a6d88f293e

1 changed files with 17 additions and 6 deletions

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23

fs/nfsd/nfs4state.c

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