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rusage and ihklib: Fix out-of-memory reporting and cleanup

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1. Fix OOM: Count memory usage only when allocation succeeded
2. Fix OOM: Make user allocation fail when memory is running out
3. Fix OOM: Move rusage_init() before numa_init()
4. Cleanup: Rename ihkconfig/ihkosctl functions
5. Cleanup: Pass event type to eventfd()
6. Cleanup: arch/.../rusage.h --> arch/.../arch_rusage.h
This commit is contained in:
Masamichi Takagi
2017-08-23 19:39:46 +09:00
parent a1af7edd6e
commit daa7526127
18 changed files with 688 additions and 151 deletions
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17
kernel/init.c
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@ -31,7 +31,6 @@
#include <cls.h>
#include <syscall.h>
#include <sysfs.h>
#include <rusage_private.h>
#include <ihk/monitor.h>
//#define IOCTL_FUNC_EXTENSION
@ -287,21 +286,6 @@ static void monitor_init()
#endif /* POSTK_DEBUG_TEMP_FIX_73 */
}
static void rusage_init()
{
int npages;
unsigned long phys;
npages = (sizeof(struct rusage_global) + PAGE_SIZE -1) >> PAGE_SHIFT;
rusage = ihk_mc_alloc_pages(npages, IHK_MC_AP_CRITICAL);
memset(rusage, 0, npages * PAGE_SIZE);
rusage->num_processors = num_processors;
rusage->num_numa_nodes = ihk_mc_get_nr_numa_nodes();
rusage->ns_per_tsc = ihk_mc_get_ns_per_tsc();
phys = virt_to_phys(rusage);
ihk_set_rusage(phys, sizeof(struct rusage_global));
}
int nmi_mode;
static void nmi_init()
@ -326,7 +310,6 @@ static void rest_init(void)
#ifndef POSTK_DEBUG_TEMP_FIX_73 /* NULL access for *monitor fix */
monitor_init();
#endif /* !POSTK_DEBUG_TEMP_FIX_73 */
rusage_init();
cpu_local_var_init();
nmi_init();
time_init();