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| author | NeilBrown <neilb@suse.de> | 2023-07-31 09:48:31 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2024-04-10 17:19:28 +0300 |
| commit | dec6b8bcac7329c6867a8957d701fda0c35d96de (patch) | |
| tree | a9d38ccc9e977451a3ae213c99f2b251b3ccad48 /include | |
| parent | 05b452e8748bcf92c00725691437e16d46af7c28 (diff) | |
| download | linux-dec6b8bcac7329c6867a8957d701fda0c35d96de.tar.xz | |
nfsd: Simplify code around svc_exit_thread() call in nfsd()
[ Upstream commit 18e4cf915543257eae2925671934937163f5639b ]
Previously a thread could exit asynchronously (due to a signal) so some
care was needed to hold nfsd_mutex over the last svc_put() call. Now a
thread can only exit when svc_set_num_threads() is called, and this is
always called under nfsd_mutex. So no care is needed.
Not only is the mutex held when a thread exits now, but the svc refcount
is elevated, so the svc_put() in svc_exit_thread() will never be a final
put, so the mutex isn't even needed at this point in the code.
Signed-off-by: NeilBrown <neilb@suse.de>
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/sunrpc/svc.h | 13 |
1 files changed, 0 insertions, 13 deletions
diff --git a/include/linux/sunrpc/svc.h b/include/linux/sunrpc/svc.h index 53405c282209..6e48c1c88f1b 100644 --- a/include/linux/sunrpc/svc.h +++ b/include/linux/sunrpc/svc.h @@ -123,19 +123,6 @@ static inline void svc_put(struct svc_serv *serv) kref_put(&serv->sv_refcnt, svc_destroy); } -/** - * svc_put_not_last - decrement non-final reference count on SUNRPC serv - * @serv: the svc_serv to have count decremented - * - * Returns: %true is refcount was decremented. - * - * If the refcount is 1, it is not decremented and instead failure is reported. - */ -static inline bool svc_put_not_last(struct svc_serv *serv) -{ - return refcount_dec_not_one(&serv->sv_refcnt.refcount); -} - /* * Maximum payload size supported by a kernel RPC server. * This is use to determine the max number of pages nfsd is |