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author | 2011-06-19 04:35:03 +0000 | |
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committer | 2011-06-19 04:35:03 +0000 | |
commit | 85bbddc99d4a503a72f03ab96c4f320a29a4ea25 (patch) | |
tree | 508bb60adb3413996e2c3504be525feffa41034d /sys/dev/vnd.c | |
parent | and in debug code, too (diff) | |
download | wireguard-openbsd-85bbddc99d4a503a72f03ab96c4f320a29a4ea25.tar.xz wireguard-openbsd-85bbddc99d4a503a72f03ab96c4f320a29a4ea25.zip |
Use disk_lock/disk_unlock directly and in the same way in these drivers,
rather than using various wrappings. Convert vnd to using the sc_dk
rwlock instead of using one of its own.
ok matthew
Diffstat (limited to 'sys/dev/vnd.c')
-rw-r--r-- | sys/dev/vnd.c | 41 |
1 files changed, 18 insertions, 23 deletions
diff --git a/sys/dev/vnd.c b/sys/dev/vnd.c index 75c91dab9d3..9d0199deb3d 100644 --- a/sys/dev/vnd.c +++ b/sys/dev/vnd.c @@ -1,4 +1,4 @@ -/* $OpenBSD: vnd.c,v 1.128 2011/06/19 04:29:41 deraadt Exp $ */ +/* $OpenBSD: vnd.c,v 1.129 2011/06/19 04:35:03 deraadt Exp $ */ /* $NetBSD: vnd.c,v 1.26 1996/03/30 23:06:11 christos Exp $ */ /* @@ -61,7 +61,6 @@ #include <sys/mount.h> #include <sys/vnode.h> #include <sys/file.h> -#include <sys/rwlock.h> #include <sys/uio.h> #include <sys/conf.h> #include <sys/dkio.h> @@ -105,7 +104,6 @@ struct vnd_softc { struct vnode *sc_vp; /* vnode */ struct ucred *sc_cred; /* credentials */ blf_ctx *sc_keyctx; /* key context */ - struct rwlock sc_rwlock; }; /* sc_flags */ @@ -128,9 +126,6 @@ int vndgetdisklabel(dev_t, struct vnd_softc *, struct disklabel *, int); void vndencrypt(struct vnd_softc *, caddr_t, size_t, daddr64_t, int); size_t vndbdevsize(struct vnode *, struct proc *); -#define vndlock(sc) rw_enter(&sc->sc_rwlock, RW_WRITE|RW_INTR) -#define vndunlock(sc) rw_exit_write(&sc->sc_rwlock) - void vndencrypt(struct vnd_softc *sc, caddr_t addr, size_t size, daddr64_t off, int encrypt) @@ -172,10 +167,10 @@ vndattach(int num) for (i = 0; i < num; i++) { struct vnd_softc *sc = &vnd_softc[i]; - rw_init(&sc->sc_rwlock, "vndlock"); sc->sc_dev.dv_unit = i; snprintf(sc->sc_dev.dv_xname, sizeof(sc->sc_dev.dv_xname), "vnd%d", i); + disk_construct(&sc->sc_dk); device_ref(&sc->sc_dev); } numvnd = num; @@ -194,7 +189,7 @@ vndopen(dev_t dev, int flags, int mode, struct proc *p) return (ENXIO); sc = &vnd_softc[unit]; - if ((error = vndlock(sc)) != 0) + if ((error = disk_lock(&sc->sc_dk)) != 0) return (error); if ((flags & FWRITE) && (sc->sc_flags & VNF_READONLY)) { @@ -234,7 +229,7 @@ vndopen(dev_t dev, int flags, int mode, struct proc *p) sc->sc_dk.dk_copenmask | sc->sc_dk.dk_bopenmask; bad: - vndunlock(sc); + disk_unlock(&sc->sc_dk); return (error); } @@ -281,7 +276,7 @@ vndclose(dev_t dev, int flags, int mode, struct proc *p) return (ENXIO); sc = &vnd_softc[unit]; - if ((error = vndlock(sc)) != 0) + if ((error = disk_lock(&sc->sc_dk)) != 0) return (error); part = DISKPART(dev); @@ -299,7 +294,7 @@ vndclose(dev_t dev, int flags, int mode, struct proc *p) sc->sc_dk.dk_openmask = sc->sc_dk.dk_copenmask | sc->sc_dk.dk_bopenmask; - vndunlock(sc); + disk_unlock(&sc->sc_dk); return (0); } @@ -487,12 +482,12 @@ vndioctl(dev_t dev, u_long cmd, caddr_t addr, int flag, struct proc *p) if (sc->sc_flags & VNF_INITED) return (EBUSY); - if ((error = vndlock(sc)) != 0) + if ((error = disk_lock(&sc->sc_dk)) != 0) return (error); if ((error = copyinstr(vio->vnd_file, sc->sc_file, sizeof(sc->sc_file), NULL))) { - vndunlock(sc); + disk_unlock(&sc->sc_dk); return (error); } @@ -514,7 +509,7 @@ vndioctl(dev_t dev, u_long cmd, caddr_t addr, int flag, struct proc *p) error = vn_open(&nd, FREAD, 0); } if (error) { - vndunlock(sc); + disk_unlock(&sc->sc_dk); return (error); } @@ -525,7 +520,7 @@ vndioctl(dev_t dev, u_long cmd, caddr_t addr, int flag, struct proc *p) if (error) { VOP_UNLOCK(nd.ni_vp, 0, p); vn_close(nd.ni_vp, VNDRW(sc), p->p_ucred, p); - vndunlock(sc); + disk_unlock(&sc->sc_dk); return (error); } sc->sc_size = vattr.va_size / sc->sc_secsize; @@ -534,7 +529,7 @@ vndioctl(dev_t dev, u_long cmd, caddr_t addr, int flag, struct proc *p) sc->sc_vp = nd.ni_vp; if ((error = vndsetcred(sc, p->p_ucred)) != 0) { (void) vn_close(nd.ni_vp, VNDRW(sc), p->p_ucred, p); - vndunlock(sc); + disk_unlock(&sc->sc_dk); return (error); } @@ -548,7 +543,7 @@ vndioctl(dev_t dev, u_long cmd, caddr_t addr, int flag, struct proc *p) vio->vnd_keylen)) != 0) { (void) vn_close(nd.ni_vp, VNDRW(sc), p->p_ucred, p); - vndunlock(sc); + disk_unlock(&sc->sc_dk); return (error); } @@ -569,7 +564,7 @@ vndioctl(dev_t dev, u_long cmd, caddr_t addr, int flag, struct proc *p) sc->sc_dk.dk_name = sc->sc_dev.dv_xname; disk_attach(&sc->sc_dev, &sc->sc_dk); - vndunlock(sc); + disk_unlock(&sc->sc_dk); break; @@ -577,7 +572,7 @@ vndioctl(dev_t dev, u_long cmd, caddr_t addr, int flag, struct proc *p) if ((sc->sc_flags & VNF_INITED) == 0) return (ENXIO); - if ((error = vndlock(sc)) != 0) + if ((error = disk_lock(&sc->sc_dk)) != 0) return (error); /* @@ -590,7 +585,7 @@ vndioctl(dev_t dev, u_long cmd, caddr_t addr, int flag, struct proc *p) if ((sc->sc_dk.dk_openmask & ~pmask) || ((sc->sc_dk.dk_bopenmask & pmask) && (sc->sc_dk.dk_copenmask & pmask))) { - vndunlock(sc); + disk_unlock(&sc->sc_dk); return (EBUSY); } @@ -605,7 +600,7 @@ vndioctl(dev_t dev, u_long cmd, caddr_t addr, int flag, struct proc *p) /* Detach the disk. */ disk_detach(&sc->sc_dk); - vndunlock(sc); + disk_unlock(&sc->sc_dk); break; case VNDIOCGET: @@ -672,7 +667,7 @@ vndioctl(dev_t dev, u_long cmd, caddr_t addr, int flag, struct proc *p) if ((flag & FWRITE) == 0) return (EBADF); - if ((error = vndlock(sc)) != 0) + if ((error = disk_lock(&sc->sc_dk)) != 0) return (error); error = setdisklabel(sc->sc_dk.dk_label, @@ -683,7 +678,7 @@ vndioctl(dev_t dev, u_long cmd, caddr_t addr, int flag, struct proc *p) vndstrategy, sc->sc_dk.dk_label); } - vndunlock(sc); + disk_unlock(&sc->sc_dk); return (error); default: |