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author | NeilBrown <neilb@suse.de> | 2023-07-31 16:48:31 +1000 |
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committer | Chuck Lever <chuck.lever@oracle.com> | 2023-08-29 17:45:22 -0400 |
commit | 18e4cf915543257eae2925671934937163f5639b (patch) | |
tree | 0376505110627ef7ef6a211480d2b45af39d615d /fs/nfsd/nfsd.h | |
parent | 3903902401451b1cd9d797a8c79769eb26ac7fe5 (diff) | |
download | lwn-18e4cf915543257eae2925671934937163f5639b.tar.gz lwn-18e4cf915543257eae2925671934937163f5639b.zip |
nfsd: Simplify code around svc_exit_thread() call in nfsd()
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 'fs/nfsd/nfsd.h')
0 files changed, 0 insertions, 0 deletions