From d3ae87be4ccc6d241677405f17f984f853822b1b Mon Sep 17 00:00:00 2001 From: James Simmons Date: Wed, 23 Dec 2015 12:32:08 -0500 Subject: [PATCH] staging: lustre: Handle nodemask on UMP machines For UMP and SMP machines the struct cfs_cpt_table are defined differently. In the case handled by this patch nodemask is defined as a integer for the UMP case and as a pointer for the SMP case. This will cause a problem for ost_setup which reads the nodemask directly. Instead we create a UMP version of cfs_cpt_nodemask and use that in ost_setup. Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-4199 Reviewed-on: http://review.whamcloud.com/9219 Starting in 3.14 kernels nodemask_t was changed from a a unsigned long to a linux bitmap so more than 32 cores could be supported. Using set_bit in cfs_cpt_table_alloc no longer compiles so this patch backports bits of the node management function that use a linux bitmap back end. Cleaned up libcfs bitmap.h to use the libcfs layers memory allocation function. This was pulling in lustre related code that was not defined. Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-4993 Reviewed-on: http://review.whamcloud.com/10332 Signed-off-by: James Simmons Reviewed-by: Liang Zhen Reviewed-by: Li Xi Reviewed-by: Andreas Dilger Reviewed-by: Bob Glossman Reviewed-by: Oleg Drokin Signed-off-by: Greg Kroah-Hartman --- drivers/staging/lustre/lustre/libcfs/libcfs_cpu.c | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/drivers/staging/lustre/lustre/libcfs/libcfs_cpu.c b/drivers/staging/lustre/lustre/libcfs/libcfs_cpu.c index 933525c73da1..ba97c79a31bd 100644 --- a/drivers/staging/lustre/lustre/libcfs/libcfs_cpu.c +++ b/drivers/staging/lustre/lustre/libcfs/libcfs_cpu.c @@ -58,6 +58,7 @@ cfs_cpt_table_alloc(unsigned int ncpt) LIBCFS_ALLOC(cptab, sizeof(*cptab)); if (cptab != NULL) { cptab->ctb_version = CFS_CPU_VERSION_MAGIC; + node_set(0, cptab->ctb_nodemask); cptab->ctb_nparts = ncpt; } @@ -111,6 +112,13 @@ cfs_cpt_online(struct cfs_cpt_table *cptab, int cpt) } EXPORT_SYMBOL(cfs_cpt_online); +nodemask_t * +cfs_cpt_nodemask(struct cfs_cpt_table *cptab, int cpt) +{ + return &cptab->ctb_nodemask; +} +EXPORT_SYMBOL(cfs_cpt_cpumask); + int cfs_cpt_set_cpu(struct cfs_cpt_table *cptab, int cpt, int cpu) { -- 2.11.0