Revision 0e4d394fe50308f69eb061eb89de78279df1e9dc authored by Vitaly Kuznetsov on 26 June 2017, 16:39:30 UTC, committed by Juergen Gross on 23 July 2017, 06:09:24 UTC
CONFIG_BOOTPARAM_HOTPLUG_CPU0 allows to offline CPU0 but Xen HVM guests BUG() in xen_teardown_timer(). Remove the BUG_ON(), this is probably a leftover from ancient times when CPU0 hotplug was impossible, it works just fine for HVM. Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com> Acked-by: Juergen Gross <jgross@suse.com> Signed-off-by: Juergen Gross <jgross@suse.com>
1 parent 4b162c5
nodemask.c
#include <linux/nodemask.h>
#include <linux/module.h>
#include <linux/random.h>
int __next_node_in(int node, const nodemask_t *srcp)
{
int ret = __next_node(node, srcp);
if (ret == MAX_NUMNODES)
ret = __first_node(srcp);
return ret;
}
EXPORT_SYMBOL(__next_node_in);
#ifdef CONFIG_NUMA
/*
* Return the bit number of a random bit set in the nodemask.
* (returns NUMA_NO_NODE if nodemask is empty)
*/
int node_random(const nodemask_t *maskp)
{
int w, bit = NUMA_NO_NODE;
w = nodes_weight(*maskp);
if (w)
bit = bitmap_ord_to_pos(maskp->bits,
get_random_int() % w, MAX_NUMNODES);
return bit;
}
#endif
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