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Mike Travis 65c0118453 cpumask: Replace cpumask_of_cpu with cpumask_of_cpu_ptr ... * This patch replaces the dangerous lvalue version of cpumask_of_cpu with new cpumask_of_cpu_ptr macros. These are patterned after the node_to_cpumask_ptr macros. In general terms, if there is a cpumask_of_cpu_map[] then a pointer to the cpumask_of_cpu_map[cpu] entry is used. The cpumask_of_cpu_map is provided when there is a large NR_CPUS count, reducing greatly the amount of code generated and stack space used for cpumask_of_cpu(). The pointer to the cpumask_t value is needed for calling set_cpus_allowed_ptr() to reduce the amount of stack space needed to pass the cpumask_t value. If there isn't a cpumask_of_cpu_map[], then a temporary variable is declared and filled in with value from cpumask_of_cpu(cpu) as well as a pointer variable pointing to this temporary variable. Afterwards, the pointer is used to reference the cpumask value. The compiler will optimize out the extra dereference through the pointer as well as the stack space used for the pointer, resulting in identical code. A good example of the orthogonal usages is in net/sunrpc/svc.c: case SVC_POOL_PERCPU: { unsigned int cpu = m->pool_to[pidx]; cpumask_of_cpu_ptr(cpumask, cpu); *oldmask = current->cpus_allowed; set_cpus_allowed_ptr(current, cpumask); return 1; } case SVC_POOL_PERNODE: { unsigned int node = m->pool_to[pidx]; node_to_cpumask_ptr(nodecpumask, node); *oldmask = current->cpus_allowed; set_cpus_allowed_ptr(current, nodecpumask); return 1; } Signed-off-by: Mike Travis <travis@sgi.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>		17 years ago
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Kconfig	sysfs: add /sys/firmware/memmap	17 years ago
Makefile	sysfs: add /sys/firmware/memmap	17 years ago
dcdbas.c	cpumask: Replace cpumask_of_cpu with cpumask_of_cpu_ptr	17 years ago
dcdbas.h	…
dell_rbu.c	dell_rbu: firmware data is const	17 years ago
dmi-id.c	…
dmi_scan.c	x86 boot: add header comment to dmi.h stating what it is	17 years ago
edd.c	edd: fix incorrect return of 1 from module_init	17 years ago
efivars.c	…
iscsi_ibft.c	Firmware: add iSCSI iBFT Support	17 years ago
iscsi_ibft_find.c	drivers: fix integer as NULL pointer warnings	17 years ago
memmap.c	sysfs: add /sys/firmware/memmap	17 years ago
pcdp.c	…
pcdp.h	…