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author | phk <phk@FreeBSD.org> | 2003-07-31 21:38:32 +0000 |
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committer | phk <phk@FreeBSD.org> | 2003-07-31 21:38:32 +0000 |
commit | f51993282f22db4dd9cfd1a41ec857da50ff1828 (patch) | |
tree | d11d553cf2c5fa993e7dcbec1d794772b2fd02d8 /lib | |
parent | 5a8eb87c5a2d61d28976b139ed73bbcc22dc6f8d (diff) | |
download | FreeBSD-src-f51993282f22db4dd9cfd1a41ec857da50ff1828.zip FreeBSD-src-f51993282f22db4dd9cfd1a41ec857da50ff1828.tar.gz |
Disable and lobotomize the kvm image reading swapinfo code, the kernel
layout is about to change.
The sysctl based method still returns correct information.
Diffstat (limited to 'lib')
-rw-r--r-- | lib/libkvm/kvm_getswapinfo.c | 126 |
1 files changed, 1 insertions, 125 deletions
diff --git a/lib/libkvm/kvm_getswapinfo.c b/lib/libkvm/kvm_getswapinfo.c index 35702a8..b9c3307 100644 --- a/lib/libkvm/kvm_getswapinfo.c +++ b/lib/libkvm/kvm_getswapinfo.c @@ -17,7 +17,6 @@ __FBSDID("$FreeBSD$"); #include <sys/sysctl.h> #include <vm/vm_param.h> -#include <vm/swap_pager.h> #include <err.h> #include <errno.h> @@ -33,14 +32,6 @@ __FBSDID("$FreeBSD$"); #include "kvm_private.h" -static struct nlist kvm_swap_nl[] = { - { "_swapblist" }, /* new radix swap list */ - { "_swdevt" }, /* list of swap devices and sizes */ - { "_nswdev" }, /* number of swap devices */ - { "_dmmax" }, /* maximum size of a swap block */ - { "" } -}; - #define NL_SWAPBLIST 0 #define NL_SWDEVT 1 #define NL_NSWDEV 2 @@ -55,7 +46,6 @@ static int kvm_getswapinfo2(kvm_t *kd, struct kvm_swap *swap_ary, int swap_max, int flags); static int kvm_getswapinfo_kvm(kvm_t *, struct kvm_swap *, int, int); static int kvm_getswapinfo_sysctl(kvm_t *, struct kvm_swap *, int, int); -static int nlist_init(kvm_t *); static int getsysctl(kvm_t *, char *, void *, size_t); #define SVAR(var) __STRING(var) /* to force expansion */ @@ -109,75 +99,8 @@ kvm_getswapinfo( if (ISALIVE(kd)) { return kvm_getswapinfo_sysctl(kd, swap_ary, swap_max, flags); } else { - return kvm_getswapinfo_kvm(kd, swap_ary, swap_max, flags); - } -} - -int -kvm_getswapinfo_kvm( - kvm_t *kd, - struct kvm_swap *swap_ary, - int swap_max, - int flags -) { - int ti = 0; - - /* - * namelist - */ - if (!nlist_init(kd)) - return (-1); - - { - struct swdevt *sw; - int i; - - ti = unswdev; - if (ti >= swap_max) - ti = swap_max - 1; - - if (ti >= 0) - bzero(swap_ary, sizeof(struct kvm_swap) * (ti + 1)); - - KGET(NL_SWDEVT, sw); - for (i = 0; i < unswdev; ++i) { - struct swdevt swinfo; - int ttl; - - KGET2(&sw[i], &swinfo, sizeof(swinfo), "swinfo"); - - /* - * old style: everything in DEV_BSIZE'd chunks, - * convert to pages. - * - * new style: swinfo in DEV_BSIZE'd chunks but dmmax - * in pages. - * - * The first dmmax is never allocating to avoid - * trashing the disklabels - */ - - ttl = swinfo.sw_nblks - dmmax; - - if (ttl == 0) - continue; - - if (i < ti) { - swap_ary[i].ksw_total = ttl; - swap_ary[i].ksw_used = swinfo.sw_used; - swap_ary[i].ksw_flags = swinfo.sw_flags; - GETSWDEVNAME(swinfo.sw_dev, - swap_ary[i].ksw_devname, flags - ); - } - if (ti >= 0) { - swap_ary[ti].ksw_total += ttl; - swap_ary[ti].ksw_used += swinfo.sw_used; - } - } + return -1; } - - return(ti); } #define GETSYSCTL(kd, name, var) \ @@ -253,53 +176,6 @@ kvm_getswapinfo_sysctl( } static int -nlist_init ( - kvm_t *kd -) { - struct swdevt *sw; - - if (kvm_swap_nl_cached) - return (1); - - if (kvm_nlist(kd, kvm_swap_nl) < 0) - return (0); - - /* - * required entries - */ - if ( - kvm_swap_nl[NL_SWDEVT].n_value == 0 || - kvm_swap_nl[NL_NSWDEV].n_value == 0 || - kvm_swap_nl[NL_DMMAX].n_value == 0 || - kvm_swap_nl[NL_SWAPBLIST].n_type == 0 - ) { - return (0); - } - - /* - * get globals, type of swap - */ - KGET(NL_NSWDEV, nswdev); - KGET(NL_DMMAX, dmmax); - - /* - * figure out how many actual swap devices are enabled - */ - KGET(NL_SWDEVT, sw); - for (unswdev = nswdev - 1; unswdev >= 0; --unswdev) { - struct swdevt swinfo; - - KGET2(&sw[unswdev], &swinfo, sizeof(swinfo), "swinfo"); - if (swinfo.sw_nblks) - break; - } - ++unswdev; - - kvm_swap_nl_cached = 1; - return (1); -} - -static int getsysctl ( kvm_t *kd, char *name, |