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staging/lustre/libcfs: add CPU table functions for uniprocessor

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Some CPU table functions for uniprocessor architecture is
missing.

Signed-off-by: Li Xi <lixi@ddn.com>
Signed-off-by: James Simmons <uja.ornl@gmail.com>
Reviewed-on: http://review.whamcloud.com/8873
Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-4199
Reviewed-by: Bob Glossman <bob.glossman@intel.com>
Reviewed-by: Dmitry Eremin <dmitry.eremin@intel.com>
Reviewed-by: Liang Zhen <liang.zhen@intel.com>
Reviewed-by: Oleg Drokin <oleg.drokin@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Li Xi 2014-04-27 13:06:58 -04:00 committed by Greg Kroah-Hartman
parent 20c53d8252
commit 5426ba66e1
3 changed files with 31 additions and 0 deletions
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5
drivers/staging/lustre/include/linux/libcfs/libcfs_cpu.h
View File

@ -202,6 +202,11 @@ void cfs_cpt_clear(struct cfs_cpt_table *cptab, int cpt);
*/
int cfs_cpt_spread_node(struct cfs_cpt_table *cptab, int cpt);
/**
* return number of HTs in the same core of \a cpu
*/
int cfs_cpu_ht_nsiblings(int cpu);
/**
* iterate over all CPU partitions in \a cptab
*/

5
drivers/staging/lustre/include/linux/libcfs/linux/linux-mem.h
View File

@ -53,6 +53,11 @@
#include <linux/memcontrol.h>
#include <linux/mm_inline.h>
#ifndef HAVE_LIBCFS_CPT
/* Need this for cfs_cpt_table */
#include <libcfs/libcfs_cpu.h>
#endif
#define CFS_PAGE_MASK (~((__u64)PAGE_CACHE_SIZE-1))
#define page_index(p) ((p)->index)

21
drivers/staging/lustre/lustre/libcfs/libcfs_cpu.c
View File

@ -74,6 +74,20 @@ cfs_cpt_table_free(struct cfs_cpt_table *cptab)
}
EXPORT_SYMBOL(cfs_cpt_table_free);
int
cfs_cpt_table_print(struct cfs_cpt_table *cptab, char *buf, int len)
{
int rc = 0;
rc = snprintf(buf, len, "%d\t: %d\n", 0, 0);
len -= rc;
if (len <= 0)
return -EFBIG;
return rc;
}
EXPORT_SYMBOL(cfs_cpt_table_print);
int
cfs_cpt_number(struct cfs_cpt_table *cptab)
{
@ -160,6 +174,13 @@ cfs_cpt_spread_node(struct cfs_cpt_table *cptab, int cpt)
}
EXPORT_SYMBOL(cfs_cpt_spread_node);
int
cfs_cpu_ht_nsiblings(int cpu)
{
return 1;
}
EXPORT_SYMBOL(cfs_cpu_ht_nsiblings);
int
cfs_cpt_current(struct cfs_cpt_table *cptab, int remap)
{