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(parent: f0743c2) | patch
NFSD: Replace the "init once" mechanism
authorChuck Lever <chuck.lever@oracle.com>
Fri, 8 Jul 2022 18:26:16 +0000 (14:26 -0400)
committerChuck Lever <chuck.lever@oracle.com>
Sat, 30 Jul 2022 00:12:01 +0000 (20:12 -0400)
commitc7b824c3d06c85e054caf86e227255112c5e3c38
tree58bbb17d42e46bcd1e7f7b861306ccc80ce4bbe7tree | snapshot
parentf0743c2b25c65debd4f599a7c861428cd9de5906commit | diff
NFSD: Replace the "init once" mechanism

In a moment, the nfsd_file_hashtbl global will be replaced with an
rhashtable. Replace the one or two spots that need to check if the
hash table is available. We can easily reuse the SHUTDOWN flag for
this purpose.

Document that this mechanism relies on callers to hold the
nfsd_mutex to prevent init, shutdown, and purging to run
concurrently.

Reviewed-by: Jeff Layton <jlayton@kernel.org>
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
fs/nfsd/filecache.c diff | blob | history
Domain: System / Kernel;