#ifndef _LIBLOCKDEP_RWLOCK_H #define _LIBLOCKDEP_RWLOCK_H #include #include "common.h" struct liblockdep_pthread_rwlock { pthread_rwlock_t rwlock; struct lockdep_map dep_map; }; typedef struct liblockdep_pthread_rwlock liblockdep_pthread_rwlock_t; #define LIBLOCKDEP_PTHREAD_RWLOCK_INITIALIZER(rwl) \ (struct liblockdep_pthread_rwlock) { \ .rwlock = PTHREAD_RWLOCK_INITIALIZER, \ .dep_map = STATIC_LOCKDEP_MAP_INIT(#rwl, &((&(rwl))->dep_map)), \ } static inline int __rwlock_init(liblockdep_pthread_rwlock_t *lock, const char *name, struct lock_class_key *key, const pthread_rwlockattr_t *attr) { lockdep_init_map(&lock->dep_map, name, key, 0); return pthread_rwlock_init(&lock->rwlock, attr); } #define liblockdep_pthread_rwlock_init(lock, attr) \ ({ \ static struct lock_class_key __key; \ \ __rwlock_init((lock), #lock, &__key, (attr)); \ }) static inline int liblockdep_pthread_rwlock_rdlock(liblockdep_pthread_rwlock_t *lock) { lock_acquire(&lock->dep_map, 0, 0, 2, 1, NULL, (unsigned long)_RET_IP_); return pthread_rwlock_rdlock(&lock->rwlock); } static inline int liblockdep_pthread_rwlock_unlock(liblockdep_pthread_rwlock_t *lock) { lock_release(&lock->dep_map, 0, (unsigned long)_RET_IP_); return pthread_rwlock_unlock(&lock->rwlock); } static inline int liblockdep_pthread_rwlock_wrlock(liblockdep_pthread_rwlock_t *lock) { lock_acquire(&lock->dep_map, 0, 0, 0, 1, NULL, (unsigned long)_RET_IP_); return pthread_rwlock_wrlock(&lock->rwlock); } static inline int liblockdep_pthread_rwlock_tryrdlock(liblockdep_pthread_rwlock_t *lock) { lock_acquire(&lock->dep_map, 0, 1, 2, 1, NULL, (unsigned long)_RET_IP_); return pthread_rwlock_tryrdlock(&lock->rwlock) == 0 ? 1 : 0; } static inline int liblockdep_pthread_rwlock_trywlock(liblockdep_pthread_rwlock_t *lock) { lock_acquire(&lock->dep_map, 0, 1, 0, 1, NULL, (unsigned long)_RET_IP_); return pthread_rwlock_trywlock(&lock->rwlock) == 0 ? 1 : 0; } static inline int liblockdep_rwlock_destroy(liblockdep_pthread_rwlock_t *lock) { return pthread_rwlock_destroy(&lock->rwlock); } #ifdef __USE_LIBLOCKDEP #define pthread_rwlock_t liblockdep_pthread_rwlock_t #define pthread_rwlock_init liblockdep_pthread_rwlock_init #define pthread_rwlock_rdlock liblockdep_pthread_rwlock_rdlock #define pthread_rwlock_unlock liblockdep_pthread_rwlock_unlock #define pthread_rwlock_wrlock liblockdep_pthread_rwlock_wrlock #define pthread_rwlock_tryrdlock liblockdep_pthread_rwlock_tryrdlock #define pthread_rwlock_trywlock liblockdep_pthread_rwlock_trywlock #define pthread_rwlock_destroy liblockdep_rwlock_destroy #endif #endif >
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authorScott Mayhew <smayhew@redhat.com>2017-01-05 16:34:51 -0500
committerJ. Bruce Fields <bfields@redhat.com>2017-01-12 15:56:40 -0500
commit546125d1614264d26080817d0c8cddb9b25081fa (patch)
treeee7ffd8b1b320378fa7ffa37a1dc5fd38595a33d /tools/perf/Documentation
parent78794d1890708cf94e3961261e52dcec2cc34722 (diff)
sunrpc: don't call sleeping functions from the notifier block callbacks
The inet6addr_chain is an atomic notifier chain, so we can't call anything that might sleep (like lock_sock)... instead of closing the socket from svc_age_temp_xprts_now (which is called by the notifier function), just have the rpc service threads do it instead. Cc: stable@vger.kernel.org Fixes: c3d4879e01be "sunrpc: Add a function to close..." Signed-off-by: Scott Mayhew <smayhew@redhat.com> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
Diffstat (limited to 'tools/perf/Documentation')