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Searched refs:seqcount (Results 1 – 15 of 15) sorted by relevance

/Linux-v5.10/include/linux/
Dseqlock.h65 typedef struct seqcount { struct
179 seqcount_init(&____s->seqcount); \
202 seqcount_t seqcount; \
209 return &s->seqcount; \
215 unsigned seq = READ_ONCE(s->seqcount.sequence); \
228 seq = READ_ONCE(s->seqcount.sequence); \
289 .seqcount = SEQCNT_ZERO(seq_name.seqcount), \
647 seqcount_t seqcount; member
655 .seqcount = SEQCNT_ZERO(seq_name.seqcount), \
664 seqcount_init(&s->seqcount); in seqcount_latch_init()
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Dsched.h264 seqcount_t seqcount; member
/Linux-v5.10/arch/s390/kernel/
Didle.c42 raw_write_seqcount_begin(&idle->seqcount); in enabled_wait()
48 raw_write_seqcount_end(&idle->seqcount); in enabled_wait()
60 seq = read_seqcount_begin(&idle->seqcount); in show_idle_count()
64 } while (read_seqcount_retry(&idle->seqcount, seq)); in show_idle_count()
77 seq = read_seqcount_begin(&idle->seqcount); in show_idle_time()
81 } while (read_seqcount_retry(&idle->seqcount, seq)); in show_idle_time()
103 seq = read_seqcount_begin(&idle->seqcount); in arch_cpu_idle_time()
106 } while (read_seqcount_retry(&idle->seqcount, seq)); in arch_cpu_idle_time()
/Linux-v5.10/kernel/sched/
Dcputime.c702 write_seqcount_begin(&vtime->seqcount); in vtime_account_kernel()
704 write_seqcount_end(&vtime->seqcount); in vtime_account_kernel()
711 write_seqcount_begin(&vtime->seqcount); in vtime_user_enter()
714 write_seqcount_end(&vtime->seqcount); in vtime_user_enter()
721 write_seqcount_begin(&vtime->seqcount); in vtime_user_exit()
728 write_seqcount_end(&vtime->seqcount); in vtime_user_exit()
741 write_seqcount_begin(&vtime->seqcount); in vtime_guest_enter()
745 write_seqcount_end(&vtime->seqcount); in vtime_guest_enter()
753 write_seqcount_begin(&vtime->seqcount); in vtime_guest_exit()
757 write_seqcount_end(&vtime->seqcount); in vtime_guest_exit()
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/Linux-v5.10/arch/s390/include/asm/
Didle.h16 seqcount_t seqcount; member
/Linux-v5.10/Documentation/locking/
Dseqlock.rst103 stored in struct seqcount and lockdep's "lock is held" assertions are
118 The plain seqcount read and write APIs branch out to the specific
120 API explosion per each new seqcount LOCKTYPE.
/Linux-v5.10/Documentation/filesystems/
Dpath-lookup.txt96 using d_seq for synchronisation (see seqcount based lookups, below).
192 no non-atomic stores to shared data), and to recheck the seqcount when we are
193 "done" with the operation. Retry or abort if the seqcount does not match.
198 protect the dentry object from disappearing, can perform a seqcount based
203 Inodes are also rcu freed, so the seqcount lookup dentry's inode may also be
216 walking is operating on each dentry. rcu-walk uses seqcount based dentry
277 It is, in some sense, a bit of a house of cards. If the seqcount check of the
/Linux-v5.10/init/
Dinit_task.c170 .vtime.seqcount = SEQCNT_ZERO(init_task.vtime_seqcount),
/Linux-v5.10/arch/x86/kernel/
Dtsc.c76 seq = this_cpu_read(cyc2ns.seq.seqcount.sequence); in cyc2ns_read_begin()
83 } while (unlikely(seq != this_cpu_read(cyc2ns.seq.seqcount.sequence))); in cyc2ns_read_begin()
/Linux-v5.10/arch/powerpc/include/asm/
Dkvm_host.h435 u64 seqcount; /* used to synchronize access, also count * 2 */ member
/Linux-v5.10/fs/
Dnamei.c1833 if (unlikely(__read_seqcount_retry(&mount_lock.seqcount, nd->m_seq))) in handle_dots()
1835 if (unlikely(__read_seqcount_retry(&rename_lock.seqcount, nd->r_seq))) in handle_dots()
2218 nd->m_seq = __read_seqcount_begin(&mount_lock.seqcount); in path_init()
2219 nd->r_seq = __read_seqcount_begin(&rename_lock.seqcount); in path_init()
/Linux-v5.10/arch/powerpc/kernel/
Dasm-offsets.c489 OFFSET(TAS_SEQCOUNT, kvmhv_tb_accumulator, seqcount); in main()
/Linux-v5.10/kernel/
Dfork.c2002 seqcount_init(&p->vtime.seqcount); in copy_process()
/Linux-v5.10/arch/powerpc/kvm/
Dbook3s_hv.c2251 count = acc->seqcount; in debugfs_timings_read()
2256 if (count == acc->seqcount) { in debugfs_timings_read()
/Linux-v5.10/drivers/infiniband/hw/hfi1/
Dsdma.c2370 (const seqcount_t *)&sde->head_lock.seqcount); in sdma_check_progress()