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Commit 5426ba66 authored by Li Xi's avatar Li Xi Committed by Greg Kroah-Hartman
Browse files

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



Some CPU table functions for uniprocessor architecture is
missing.

Signed-off-by: default avatarLi Xi <lixi@ddn.com>
Signed-off-by: default avatarJames 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: default avatarBob Glossman <bob.glossman@intel.com>
Reviewed-by: default avatarDmitry Eremin <dmitry.eremin@intel.com>
Reviewed-by: default avatarLiang Zhen <liang.zhen@intel.com>
Reviewed-by: default avatarOleg Drokin <oleg.drokin@intel.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 20c53d82

drivers/staging/lustre/include/linux/libcfs/libcfs_cpu.h

+5 −0
Original line number Diff line number Diff line
@@ -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

 */

drivers/staging/lustre/include/linux/libcfs/linux/linux-mem.h

+5 −0
Original line number Diff line number Diff line
@@ -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)

drivers/staging/lustre/lustre/libcfs/libcfs_cpu.c

+21 −0
Original line number Diff line number Diff line
@@ -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)

{