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Searched refs:seqlock (Results 1 – 16 of 16) sorted by relevance

/OK3568_Linux_fs/kernel/Documentation/RCU/
H A DarrayRCU.rst46 have not been used with RCU. Rik van Riel recommends using seqlock in
51 Why is it so important that updates be rare when using seqlock?
160 Why is it so important that updates be rare when using seqlock?
163 using seqlock is that frequent updates can livelock readers.
164 One way to avoid this problem is to assign a seqlock for
H A DRTFP.txt2613 RCU, and seqlock.
/OK3568_Linux_fs/kernel/Documentation/locking/
H A Dindex.rst17 seqlock
H A Dseqlock.rst239 .. kernel-doc:: include/linux/seqlock.h
/OK3568_Linux_fs/kernel/include/net/
H A Dsch_generic.h112 spinlock_t seqlock; member
147 return spin_is_locked(&qdisc->seqlock); in qdisc_is_running()
166 if (spin_trylock(&qdisc->seqlock)) in qdisc_run_begin()
181 if (!spin_trylock(&qdisc->seqlock)) in qdisc_run_begin()
201 spin_unlock(&qdisc->seqlock); in qdisc_run_end()
/OK3568_Linux_fs/kernel/include/drm/
H A Ddrm_vblank.h111 seqlock_t seqlock; member
/OK3568_Linux_fs/kernel/Documentation/filesystems/
H A Dpath-lookup.txt94 These members are also protected by d_seq seqlock, although this offers
120 dentry. So a seqlock is used to detect when a rename has occurred, and so the
172 rename seqlock is also used to cover this race in much the same way, by
184 dentry seqlock (d_seq) is used to take a "coherent snapshot" of what the dentry
301 * Have a per-dentry seqlock to protect the dentry name, parent, and inode,
313 * If seqlock verification fails anywhere along the path, do a full restart
H A Dpath-lookup.rst234 ``rename_lock`` is a seqlock that is updated whenever any dentry is
340 ``mount_lock`` is a global seqlock, a bit like ``rename_lock``. It can be used to
345 the value in the seqlock is read, then the code finds the mount that
353 a little more care is needed. In this case the seqlock (which
701 samples the status of a seqlock using ``read_seqcount_begin()`` or a
707 RCU-walk accesses two different fields in a seqlock-protected
734 We already met the ``mount_lock`` seqlock when REF-walk used it to
764 the per-dentry ``d_seq`` seqlock, and stores the sequence number in the
/OK3568_Linux_fs/kernel/drivers/gpu/drm/
H A Ddrm_vblank.c179 write_seqlock(&vblank->seqlock); in store_vblank()
182 write_sequnlock(&vblank->seqlock); in store_vblank()
538 seqlock_init(&vblank->seqlock); in drm_vblank_init()
942 seq = read_seqbegin(&vblank->seqlock); in drm_vblank_count_and_time()
945 } while (read_seqretry(&vblank->seqlock, seq)); in drm_vblank_count_and_time()
/OK3568_Linux_fs/kernel/net/sched/
H A Dsch_generic.c888 spin_lock_init(&sch->seqlock); in qdisc_alloc()
889 lockdep_set_class(&sch->seqlock, in qdisc_alloc()
1218 spin_lock_bh(&qdisc->seqlock); in dev_reset_queue()
1226 spin_unlock_bh(&qdisc->seqlock); in dev_reset_queue()
/OK3568_Linux_fs/kernel/fs/nfs/
H A Dnfs4proc.c1661 write_seqlock(&state->seqlock); in nfs_clear_open_stateid()
1665 write_sequnlock(&state->seqlock); in nfs_clear_open_stateid()
1673 __must_hold(&state->seqlock) in nfs_set_open_stateid_locked()
1697 write_sequnlock(&state->seqlock); in nfs_set_open_stateid_locked()
1712 write_seqlock(&state->seqlock); in nfs_set_open_stateid_locked()
1737 write_seqlock(&state->seqlock); in nfs_state_set_open_stateid()
1750 write_sequnlock(&state->seqlock); in nfs_state_set_open_stateid()
1769 write_seqlock(&state->seqlock); in nfs_state_set_delegation()
1772 write_sequnlock(&state->seqlock); in nfs_state_set_delegation()
1777 write_seqlock(&state->seqlock); in nfs_state_clear_delegation()
[all …]
H A Dnfs4_fs.h188 seqlock_t seqlock; /* Protects the stateid/open_stateid */ member
H A Dnfs4state.c676 seqlock_init(&state->seqlock); in nfs4_alloc_open_state()
1028 seq = read_seqbegin(&state->seqlock); in nfs4_copy_open_stateid()
1034 } while (read_seqretry(&state->seqlock, seq)); in nfs4_copy_open_stateid()
/OK3568_Linux_fs/kernel/tools/memory-model/Documentation/
H A Dsimple.txt151 Additional information may be found in include/linux/seqlock.h.
/OK3568_Linux_fs/kernel/tools/perf/
H A Ddesign.txt319 __u32 lock; /* seqlock for synchronization */
/OK3568_Linux_fs/kernel/
H A DMAINTAINERS10295 F: include/linux/seqlock.h