#ifndef _ASM_GENERIC_LOCAL64_H
#define _ASM_GENERIC_LOCAL64_H

#include <linux/percpu.h>
#include <asm/types.h>

/*
 * A signed long type for operations which are atomic for a single CPU.
 * Usually used in combination with per-cpu variables.
 *
 * This is the default implementation, which uses atomic64_t.  Which is
 * rather pointless.  The whole point behind local64_t is that some processors
 * can perform atomic adds and subtracts in a manner which is atomic wrt IRQs
 * running on this CPU.  local64_t allows exploitation of such capabilities.
 */

/* Implement in terms of atomics. */

#if BITS_PER_LONG == 64

#include <asm/local.h>

typedef struct {
	local_t a;
} local64_t;

#define LOCAL64_INIT(i)	{ LOCAL_INIT(i) }

#define local64_read(l)		local_read(&(l)->a)
#define local64_set(l,i)	local_set((&(l)->a),(i))
#define local64_inc(l)		local_inc(&(l)->a)
#define local64_dec(l)		local_dec(&(l)->a)
#define local64_add(i,l)	local_add((i),(&(l)->a))
#define local64_sub(i,l)	local_sub((i),(&(l)->a))

#define local64_sub_and_test(i, l) local_sub_and_test((i), (&(l)->a))
#define local64_dec_and_test(l) local_dec_and_test(&(l)->a)
#define local64_inc_and_test(l) local_inc_and_test(&(l)->a)
#define local64_add_negative(i, l) local_add_negative((i), (&(l)->a))
#define local64_add_return(i, l) local_add_return((i), (&(l)->a))
#define local64_sub_return(i, l) local_sub_return((i), (&(l)->a))
#define local64_inc_return(l)	local_inc_return(&(l)->a)

#define local64_cmpxchg(l, o, n) local_cmpxchg((&(l)->a), (o), (n))
#define local64_xchg(l, n)	local_xchg((&(l)->a), (n))
#define local64_add_unless(l, _a, u) local_add_unless((&(l)->a), (_a), (u))
#define local64_inc_not_zero(l)	local_inc_not_zero(&(l)->a)

/* Non-atomic variants, ie. preemption disabled and won't be touched
 * in interrupt, etc.  Some archs can optimize this case well. */
#define __local64_inc(l)	local64_set((l), local64_read(l) + 1)
#define __local64_dec(l)	local64_set((l), local64_read(l) - 1)
#define __local64_add(i,l)	local64_set((l), local64_read(l) + (i))
#define __local64_sub(i,l)	local64_set((l), local64_read(l) - (i))

#else /* BITS_PER_LONG != 64 */

#include <linux/atomic.h>

/* Don't use typedef: don't want them to be mixed with atomic_t's. */
typedef struct {
	atomic64_t a;
} local64_t;

#define LOCAL64_INIT(i)	{ ATOMIC_LONG_INIT(i) }

#define local64_read(l)		atomic64_read(&(l)->a)
#define local64_set(l,i)	atomic64_set((&(l)->a),(i))
#define local64_inc(l)		atomic64_inc(&(l)->a)
#define local64_dec(l)		atomic64_dec(&(l)->a)
#define local64_add(i,l)	atomic64_add((i),(&(l)->a))
#define local64_sub(i,l)	atomic64_sub((i),(&(l)->a))

#define local64_sub_and_test(i, l) atomic64_sub_and_test((i), (&(l)->a))
#define local64_dec_and_test(l) atomic64_dec_and_test(&(l)->a)
#define local64_inc_and_test(l) atomic64_inc_and_test(&(l)->a)
#define local64_add_negative(i, l) atomic64_add_negative((i), (&(l)->a))
#define local64_add_return(i, l) atomic64_add_return((i), (&(l)->a))
#define local64_sub_return(i, l) atomic64_sub_return((i), (&(l)->a))
#define local64_inc_return(l)	atomic64_inc_return(&(l)->a)

#define local64_cmpxchg(l, o, n) atomic64_cmpxchg((&(l)->a), (o), (n))
#define local64_xchg(l, n)	atomic64_xchg((&(l)->a), (n))
#define local64_add_unless(l, _a, u) atomic64_add_unless((&(l)->a), (_a), (u))
#define local64_inc_not_zero(l)	atomic64_inc_not_zero(&(l)->a)

/* Non-atomic variants, ie. preemption disabled and won't be touched
 * in interrupt, etc.  Some archs can optimize this case well. */
#define __local64_inc(l)	local64_set((l), local64_read(l) + 1)
#define __local64_dec(l)	local64_set((l), local64_read(l) - 1)
#define __local64_add(i,l)	local64_set((l), local64_read(l) + (i))
#define __local64_sub(i,l)	local64_set((l), local64_read(l) - (i))

#endif /* BITS_PER_LONG != 64 */

#endif /* _ASM_GENERIC_LOCAL64_H */
on value='7'>7</option><option value='8'>8</option><option value='9'>9</option><option value='10'>10</option><option value='15'>15</option><option value='20'>20</option><option value='25'>25</option><option value='30'>30</option><option value='35'>35</option><option value='40'>40</option></select></td></tr><tr><td class='label'>space:</td><td class='ctrl'><select name='ignorews' onchange='this.form.submit();'><option value='0' selected='selected'>include</option><option value='1'>ignore</option></select></td></tr><tr><td class='label'>mode:</td><td class='ctrl'><select name='dt' onchange='this.form.submit();'><option value='0' selected='selected'>unified</option><option value='1'>ssdiff</option><option value='2'>stat only</option></select></td></tr><tr><td/><td class='ctrl'><noscript><input type='submit' value='reload'/></noscript></td></tr></table></form></div><table summary='commit info' class='commit-info'>
<tr><th>author</th><td>Linus Torvalds &lt;torvalds@linux-foundation.org&gt;</td><td class='right'>2017-01-16 09:34:37 -0800</td></tr>
<tr><th>committer</th><td>Linus Torvalds &lt;torvalds@linux-foundation.org&gt;</td><td class='right'>2017-01-16 09:34:37 -0800</td></tr>
<tr><th>commit</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/include/net/irda/irlan_provider.h?id=2eabb8b8d68bc9c7779ba8b04bec8d4f8baed0bc'>2eabb8b8d68bc9c7779ba8b04bec8d4f8baed0bc</a> (<a href='/cgit.cgi/linux/net-next.git/patch/include/net/irda/irlan_provider.h?id=2eabb8b8d68bc9c7779ba8b04bec8d4f8baed0bc'>patch</a>)</td></tr>
<tr><th>tree</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/tree/?id=2eabb8b8d68bc9c7779ba8b04bec8d4f8baed0bc'>4d8ea8e6ca52f1938269937834641205d8d888f0</a> /<a href='/cgit.cgi/linux/net-next.git/tree/include/net/irda/irlan_provider.h?id=2eabb8b8d68bc9c7779ba8b04bec8d4f8baed0bc'>include/net/irda/irlan_provider.h</a></td></tr>
<tr><th>parent</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/include/net/irda/irlan_provider.h?id=49def1853334396f948dcb4cedb9347abb318df5'>49def1853334396f948dcb4cedb9347abb318df5</a> (<a href='/cgit.cgi/linux/net-next.git/diff/include/net/irda/irlan_provider.h?id=2eabb8b8d68bc9c7779ba8b04bec8d4f8baed0bc&amp;id2=49def1853334396f948dcb4cedb9347abb318df5'>diff</a>)</td></tr><tr><th>parent</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/include/net/irda/irlan_provider.h?id=ce1ca7d2d140a1f4aaffd297ac487f246963dd2f'>ce1ca7d2d140a1f4aaffd297ac487f246963dd2f</a> (<a href='/cgit.cgi/linux/net-next.git/diff/include/net/irda/irlan_provider.h?id=2eabb8b8d68bc9c7779ba8b04bec8d4f8baed0bc&amp;id2=ce1ca7d2d140a1f4aaffd297ac487f246963dd2f'>diff</a>)</td></tr></table>
<div class='commit-subject'>Merge tag 'nfsd-4.10-1' of git://linux-nfs.org/~bfields/linux</div><div class='commit-msg'>Pull nfsd fixes from Bruce Fields:
 "Miscellaneous nfsd bugfixes, one for a 4.10 regression, three for
  older bugs"

* tag 'nfsd-4.10-1' of git://linux-nfs.org/~bfields/linux:
  svcrdma: avoid duplicate dma unmapping during error recovery
  sunrpc: don't call sleeping functions from the notifier block callbacks
  svcrpc: don't leak contexts on PROC_DESTROY
  nfsd: fix supported attributes for acl &amp; labels
</div><div class='diffstat-header'><a href='/cgit.cgi/linux/net-next.git/diff/?id=2eabb8b8d68bc9c7779ba8b04bec8d4f8baed0bc'>Diffstat</a> (limited to 'include/net/irda/irlan_provider.h')</div><table summary='diffstat' class='diffstat'>