Searched refs:d_seq (Results 1 – 5 of 5) sorted by relevance
| /linux/Documentation/filesystems/ |
| A D | path-lookup.txt | 94 These members are also protected by d_seq seqlock, although this offers
96 using d_seq for synchronisation (see seqcount based lookups, below).
201 provided that d_seq is rechecked after that operation is complete.
226 path string, rcu-walk uses a d_seq protected snapshot. When looking up a
227 child of this parent snapshot, we open d_seq critical section on the child
246 +---------------------+ rcu-walk begins here, we note d_seq, check the
254 | name: "home" | hash lookup, then note d_seq and compare name
256 | children:"npiggin" | we now recheck the d_seq of dentry0. Then we
268 | name: "a.c" | We now take its d_lock, verify d_seq of this
274 re-checking its d_seq, and then incrementing its refcount is called
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| A D | path-lookup.rst | 759 ``dentry->d_seq`` and ``nd->seq``
763 the per-dentry ``d_seq`` seqlock, and stores the sequence number in the
773 When not at a mount point, ``d_parent`` is followed and its ``d_seq`` is
776 ``d_seq``. Then, after finally finding a ``d_parent`` to follow, we must
846 handled immediately, such as ``mount_lock`` or one of the ``d_seq``
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| /linux/fs/ |
| A D | dcache.c | 365 raw_write_seqcount_begin(&dentry->d_seq); in dentry_unlink_inode()
368 raw_write_seqcount_end(&dentry->d_seq); in dentry_unlink_inode()
484 write_seqcount_invalidate(&dentry->d_seq); in __d_drop()
942 seq = raw_seqcount_begin(&dentry->d_seq); in dget_parent()
1984 raw_write_seqcount_end(&dentry->d_seq); in __d_instantiate()
2577 unsigned seq, r_seq, d_seq; in d_alloc_parallel() local
2592 if (read_seqcount_retry(&dentry->d_seq, d_seq)) { in d_alloc_parallel()
2710 raw_write_seqcount_end(&dentry->d_seq); in __d_add()
2895 write_seqcount_begin(&dentry->d_seq); in __d_move()
2924 write_seqcount_end(&target->d_seq); in __d_move()
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| A D | namei.c | 702 return !read_seqcount_retry(&path->dentry->d_seq, seq); in __legitimize_path()
827 if (unlikely(read_seqcount_retry(&dentry->d_seq, seq))) in try_to_unlazy_next()
971 if (unlikely(read_seqcount_retry(&d->d_seq, nd->seq))) in nd_jump_root()
1251 *seqp = read_seqcount_begin(&mountpoint->d_seq); in choose_mountpoint_rcu()
1455 *seqp = read_seqcount_begin(&dentry->d_seq); in __follow_mount_rcu()
1592 if (unlikely(read_seqcount_retry(&dentry->d_seq, seq))) in lookup_fast()
1820 if (read_seqcount_retry(&path.dentry->d_seq, seq)) in step_into()
1855 *seqp = read_seqcount_begin(&parent->d_seq); in follow_dotdot_rcu()
1856 if (unlikely(read_seqcount_retry(&old->d_seq, nd->seq))) in follow_dotdot_rcu()
2347 nd->seq = read_seqcount_begin(&nd->path.dentry->d_seq); in path_init()
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| /linux/include/linux/ |
| A D | dcache.h | 94 seqcount_spinlock_t d_seq; /* per dentry seqlock */ member
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