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Merge branch 'for-3.5' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/percpu

Pull percpu updates from Tejun Heo: "Contains Alex Shi's three patches to remove percpu_xxx() which overlap with this_cpu_xxx(). There shouldn't be any functional change." * 'for-3.5' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/percpu: percpu: remove percpu_xxx() functions x86: replace percpu_xxx funcs with this_cpu_xxx net: replace percpu_xxx funcs with this_cpu_xxx or __this_cpu_xxx

Linus Torvalds committed 14 years ago

Commit f5c10182 parents c54894c 641b69525 files · +69 −124Browse files

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2 files
  1. include/linux/percpu.h +0 −54
  2. include/linux/topology.h +2 −2
include/linux/percpu.h+0−54
@@ -165,60 +165,6 @@ extern phys_addr_t per_cpu_ptr_to_phys(void *addr); · 164 unmodified lines
165165 #define alloc_percpu(type) \
166166 (typeof(type) __percpu *)__alloc_percpu(sizeof(type), __alignof__(type))
167167
168−/*
169− * Optional methods for optimized non-lvalue per-cpu variable access.
170− *
171− * @var can be a percpu variable or a field of it and its size should
172− * equal char, int or long. percpu_read() evaluates to a lvalue and
173− * all others to void.
174− *
175− * These operations are guaranteed to be atomic.
176− * The generic versions disable interrupts. Archs are
177− * encouraged to implement single-instruction alternatives which don't
178− * require protection.
179− */
180−#ifndef percpu_read
181−# define percpu_read(var) \
182− ({ \
183− typeof(var) *pr_ptr__ = &(var); \
184− typeof(var) pr_ret__; \
185− pr_ret__ = get_cpu_var(*pr_ptr__); \
186− put_cpu_var(*pr_ptr__); \
187− pr_ret__; \
188− })
189−#endif
190−
191−#define __percpu_generic_to_op(var, val, op) \
192−do { \
193− typeof(var) *pgto_ptr__ = &(var); \
194− get_cpu_var(*pgto_ptr__) op val; \
195− put_cpu_var(*pgto_ptr__); \
196−} while (0)
197−
198−#ifndef percpu_write
199−# define percpu_write(var, val) __percpu_generic_to_op(var, (val), =)
200−#endif
201−
202−#ifndef percpu_add
203−# define percpu_add(var, val) __percpu_generic_to_op(var, (val), +=)
204−#endif
205−
206−#ifndef percpu_sub
207−# define percpu_sub(var, val) __percpu_generic_to_op(var, (val), -=)
208−#endif
209−
210−#ifndef percpu_and
211−# define percpu_and(var, val) __percpu_generic_to_op(var, (val), &=)
212−#endif
213−
214−#ifndef percpu_or
215−# define percpu_or(var, val) __percpu_generic_to_op(var, (val), |=)
216−#endif
217−
218−#ifndef percpu_xor
219−# define percpu_xor(var, val) __percpu_generic_to_op(var, (val), ^=)
220−#endif
221−
222168 /*
223169 * Branching function to split up a function into a set of functions that
224170 * are called for different scalar sizes of the objects handled.
include/linux/topology.h+2−2
@@ -239,7 +239,7 @@ static inline int cpu_to_node(int cpu) · 238 unmodified lines
239239 #ifndef set_numa_node
240240 static inline void set_numa_node(int node)
241241 {
242− percpu_write(numa_node, node);
242+ this_cpu_write(numa_node, node);
243243 }
244244 #endif
245245
@@ -274,7 +274,7 @@ DECLARE_PER_CPU(int, _numa_mem_); · 28 unmodified lines
274274 #ifndef set_numa_mem
275275 static inline void set_numa_mem(int node)
276276 {
277− percpu_write(_numa_mem_, node);
277+ this_cpu_write(_numa_mem_, node);
278278 }
279279 #endif
280280

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