diff options
Diffstat (limited to 'sys/geom/geom_dev.c')
| -rw-r--r-- | sys/geom/geom_dev.c | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/sys/geom/geom_dev.c b/sys/geom/geom_dev.c index 3711fb0..b845b06 100644 --- a/sys/geom/geom_dev.c +++ b/sys/geom/geom_dev.c @@ -48,6 +48,7 @@ #include <sys/disk.h> #include <sys/fcntl.h> #include <geom/geom.h> +#include <machine/limits.h> #define CDEV_MAJOR 4 @@ -239,7 +240,9 @@ g_dev_ioctl(dev_t dev, u_long cmd, caddr_t data, int fflag, struct thread *td) { struct g_geom *gp; struct g_consumer *cp; + struct g_kerneldump kd; int i, error; + u_int u; struct g_ioctl *gio; gp = dev->si_drv1; @@ -265,6 +268,20 @@ g_dev_ioctl(dev_t dev, u_long cmd, caddr_t data, int fflag, struct thread *td) case DIOCGFRONTSTUFF: error = g_io_getattr("GEOM::frontstuff", cp, &i, data); break; + case DIOCSKERNELDUMP: + u = *((u_int *)data); + if (!u) { + set_dumper(NULL); + error = 0; + break; + } + kd.offset = 0; + kd.length = OFF_MAX; + i = sizeof kd; + error = g_io_getattr("GEOM::kerneldump", cp, &i, &kd); + if (!error) + dev->si_flags |= SI_DUMPDEV; + break; default: gio = g_malloc(sizeof *gio, M_WAITOK); gio->cmd = cmd; @@ -378,6 +395,8 @@ g_dev_orphan(struct g_consumer *cp) if (cp->biocount > 0) return; dev = gp->softc; + if (dev->si_flags & SI_DUMPDEV) + set_dumper(NULL); destroy_dev(dev); if (cp->acr > 0 || cp->acw > 0 || cp->ace > 0) g_access_rel(cp, -cp->acr, -cp->acw, -cp->ace); |
