nfsd: rework hashtable handling in nfsd_do_file_acquire

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nfsd_file is RCU-freed, so we need to hold the rcu_read_lock long enough
to get a reference after finding it in the hash. Take the
rcu_read_lock() and call rhashtable_lookup directly.

Switch to using rhashtable_lookup_insert_key as well, and use the usual
retry mechanism if we hit an -EEXIST. Rename the "retry" bool to
open_retry, and eliminiate the insert_err goto target.

Signed-off-by: Jeff Layton <jlayton@kernel.org>
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>

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Jeff Layton 2022-10-04 15:41:10 -04:00 • committed by Chuck Lever

parent 8d0d254b15

commit 243a526301

1 changed files with 22 additions and 30 deletions

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fs/nfsd/filecache.c

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