int obd_alloc_fail(const void *ptr, const char *name, const char *type,
size_t size, const char *file, int line)
{
if (ptr == NULL ||
(cfs_rand() & OBD_ALLOC_FAIL_MASK) < obd_alloc_fail_rate) {
CERROR("%s%salloc of %s ("LPU64" bytes) failed at %s:%d\n",
ptr ? "force " :"", type, name, (__u64)size, file,
line);
CERROR(LPU64" total bytes and "LPU64" total pages "
"("LPU64" bytes) allocated by Lustre, "
"%d total bytes by LNET\n",
obd_memory_sum(),
obd_pages_sum() << CFS_PAGE_SHIFT,
obd_pages_sum(),
cfs_atomic_read(&libcfs_kmemory));
return 1;
}
return 0;
}
void obd_update_maxusage()
{
__u64 max1, max2;
max1 = obd_pages_sum();
max2 = obd_memory_sum();
cfs_spin_lock(&obd_updatemax_lock);
if (max1 > obd_max_pages)
obd_max_pages = max1;
if (max2 > obd_max_alloc)
obd_max_alloc = max2;
cfs_spin_unlock(&obd_updatemax_lock);
}
int LL_PROC_PROTO(proc_pages_alloc)
{
char buf[22];
int len;
if (!*lenp || (*ppos && !write)) {
*lenp = 0;
return 0;
}
if (write)
return -EINVAL;
len = snprintf(buf, sizeof(buf), LPU64"\n", obd_pages_sum());
if (len > *lenp)
len = *lenp;
buf[len] = '\0';
if (copy_to_user(buffer, buf, len))
return -EFAULT;
*lenp = len;
*ppos += *lenp;
return 0;
}
static int proc_pages_alloc(struct ctl_table *table, int write,
void __user *buffer, size_t *lenp, loff_t *ppos)
{
char buf[22];
int len;
if (!*lenp || (*ppos && !write)) {
*lenp = 0;
return 0;
}
if (write)
return -EINVAL;
len = snprintf(buf, sizeof(buf), "%llu\n", obd_pages_sum());
if (len > *lenp)
len = *lenp;
buf[len] = '\0';
if (copy_to_user(buffer, buf, len))
return -EFAULT;
*lenp = len;
*ppos += *lenp;
return 0;
}
