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Teach vmstat's domemstat_zone() to use memstat_kvm_uma() when the kvm

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descriptor is non-NULL, restoring vmstat -z support for core dumps and
kmem access.  These were broken with the introduction of UMA.
This commit is contained in:
Robert Watson 2005-08-01 21:33:17 +00:00
parent dcb5fef5db
commit c753d56b39
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=148630
1 changed files with 19 additions and 14 deletions
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33
usr.bin/vmstat/vmstat.c
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@ -155,7 +155,7 @@ static void domem(void);
static void dointr(void);
static void dosum(void);
static void dovmstat(unsigned int, int);
static void dozmem(void);
static void domemstat_zone(void);
static void kread(int, void *, size_t);
static void kreado(int, void *, size_t, size_t);
static char *kgetstr(const char *);
@ -302,7 +302,7 @@ main(int argc, char *argv[])
if (todo & MEMSTAT)
domem();
if (todo & ZMEMSTAT)
dozmem();
domemstat_zone();
if (todo & SUMSTAT)
dosum();
#ifdef notyet
@ -945,16 +945,29 @@ domemstat_zone(void)
struct memory_type_list *mtlp;
struct memory_type *mtp;
char name[MEMTYPE_MAXNAME + 1];
int error;
mtlp = memstat_mtl_alloc();
if (mtlp == NULL) {
warn("memstat_mtl_alloc");
return;
}
if (memstat_sysctl_uma(mtlp, 0) < 0) {
warnx("memstat_sysctl_uma: %s",
memstat_strerror(memstat_mtl_geterror(mtlp)));
return;
if (kd == NULL) {
if (memstat_sysctl_uma(mtlp, 0) < 0) {
warnx("memstat_sysctl_uma: %s",
memstat_strerror(memstat_mtl_geterror(mtlp)));
return;
}
} else {
if (memstat_kvm_uma(mtlp, kd) < 0) {
error = memstat_mtl_geterror(mtlp);
if (error == MEMSTAT_ERROR_KVM)
warnx("memstat_kvm_uma: %s",
kvm_geterr(kd));
else
warnx("memstat_kvm_uma: %s",
memstat_strerror(error));
}
}
printf("%-15s %-8s %-9s %-7s %-5s %-8s\n\n", "ITEM", "SIZE", "LIMIT",
"USED", "FREE", "REQUESTS");
@ -1060,14 +1073,6 @@ domem(void)
} while (type.ks_next != NULL);
}
static void
dozmem(void)
{
if (kd != NULL)
errx(1, "not implemented");
domemstat_zone();
}
/*
* kread reads something from the kernel, given its nlist index.
*/