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| author | Wolfram Sang <wsa@the-dreams.de> | 2018-01-03 22:50:51 +0100 |
|---|---|---|
| committer | Wolfram Sang <wsa@the-dreams.de> | 2018-01-03 22:50:51 +0100 |
| commit | fddfa22a4403cd19548de075ddada0c7c966a232 (patch) | |
| tree | f981a63ff0c1062aecb5ab48b0585ffe97a7c20b /include/linux/rculist_nulls.h | |
| parent | 639136d2a70ab9837befb22ad5b3d67cb4db2216 (diff) | |
| parent | 0f30aca72c3b68f4b6a443193b574f14106cd61e (diff) | |
| download | lwn-fddfa22a4403cd19548de075ddada0c7c966a232.tar.gz lwn-fddfa22a4403cd19548de075ddada0c7c966a232.zip | |
Merge tag 'at24-4.16-updates-for-wolfram' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux into i2c/for-4.16
"AT24 updates for 4.16 merge window
The driver has been converted to using regmap instead of raw i2c and
smbus calls which shrank the code significantly.
Device tree binding document has been cleaned up. Device tree support in
the driver has been improved and we now support all at24 models as well
as two new DT properties (no-read-rollover and wp-gpios).
We no longer user unreadable magic values for driver data as the way it
was implemented caused problems for some EEPROM models - we switched to
regular structs.
Aside from that, there's a bunch of coding style fixes and minor
improvements all over the place."
Diffstat (limited to 'include/linux/rculist_nulls.h')
| -rw-r--r-- | include/linux/rculist_nulls.h | 38 |
1 files changed, 0 insertions, 38 deletions
diff --git a/include/linux/rculist_nulls.h b/include/linux/rculist_nulls.h index a328e8181e49..e4b257ff881b 100644 --- a/include/linux/rculist_nulls.h +++ b/include/linux/rculist_nulls.h @@ -101,44 +101,6 @@ static inline void hlist_nulls_add_head_rcu(struct hlist_nulls_node *n, } /** - * hlist_nulls_add_tail_rcu - * @n: the element to add to the hash list. - * @h: the list to add to. - * - * Description: - * Adds the specified element to the end of the specified hlist_nulls, - * while permitting racing traversals. NOTE: tail insertion requires - * list traversal. - * - * The caller must take whatever precautions are necessary - * (such as holding appropriate locks) to avoid racing - * with another list-mutation primitive, such as hlist_nulls_add_head_rcu() - * or hlist_nulls_del_rcu(), running on this same list. - * However, it is perfectly legal to run concurrently with - * the _rcu list-traversal primitives, such as - * hlist_nulls_for_each_entry_rcu(), used to prevent memory-consistency - * problems on Alpha CPUs. Regardless of the type of CPU, the - * list-traversal primitive must be guarded by rcu_read_lock(). - */ -static inline void hlist_nulls_add_tail_rcu(struct hlist_nulls_node *n, - struct hlist_nulls_head *h) -{ - struct hlist_nulls_node *i, *last = NULL; - - for (i = hlist_nulls_first_rcu(h); !is_a_nulls(i); - i = hlist_nulls_next_rcu(i)) - last = i; - - if (last) { - n->next = last->next; - n->pprev = &last->next; - rcu_assign_pointer(hlist_nulls_next_rcu(last), n); - } else { - hlist_nulls_add_head_rcu(n, h); - } -} - -/** * hlist_nulls_for_each_entry_rcu - iterate over rcu list of given type * @tpos: the type * to use as a loop cursor. * @pos: the &struct hlist_nulls_node to use as a loop cursor. |
