diff options
author | phk <phk@FreeBSD.org> | 2002-09-27 21:37:11 +0000 |
---|---|---|
committer | phk <phk@FreeBSD.org> | 2002-09-27 21:37:11 +0000 |
commit | bd4b8491399a8df6b7aea34dc30845289f3bc0f8 (patch) | |
tree | 02c4bf4995be772bfd0fd8a2f45388a5e079ecb5 /sys | |
parent | 577f8b1e73497700b0f10db6cf84bd6db96cd62c (diff) | |
download | FreeBSD-src-bd4b8491399a8df6b7aea34dc30845289f3bc0f8.zip FreeBSD-src-bd4b8491399a8df6b7aea34dc30845289f3bc0f8.tar.gz |
Add the new g_slice_config() call, which can add/delete/change a slice,
with support for trying, doing and forcing.
This will eventually replace g_slice_addslice() which gets changed from
grabbing topology to requing it in this commit as well.
Sponsored by: DARPA & NAI Labs.
Diffstat (limited to 'sys')
-rw-r--r-- | sys/geom/geom_aes.c | 4 | ||||
-rw-r--r-- | sys/geom/geom_bsd.c | 4 | ||||
-rw-r--r-- | sys/geom/geom_gpt.c | 2 | ||||
-rw-r--r-- | sys/geom/geom_mbr.c | 4 | ||||
-rw-r--r-- | sys/geom/geom_pc98.c | 5 | ||||
-rw-r--r-- | sys/geom/geom_slice.c | 59 | ||||
-rw-r--r-- | sys/geom/geom_slice.h | 9 | ||||
-rw-r--r-- | sys/geom/geom_sunlabel.c | 2 |
8 files changed, 84 insertions, 5 deletions
diff --git a/sys/geom/geom_aes.c b/sys/geom/geom_aes.c index 4304c2d..ed9e66e 100644 --- a/sys/geom/geom_aes.c +++ b/sys/geom/geom_aes.c @@ -317,6 +317,7 @@ g_aes_taste(struct g_class *mp, struct g_provider *pp, int flags __unused) return (NULL); } buf = NULL; + g_topology_unlock(); while (1) { if (gp->rank != 2) break; @@ -370,11 +371,14 @@ g_aes_taste(struct g_class *mp, struct g_provider *pp, int flags __unused) *p++ = u >> 24; } } + g_topology_lock(); pp = g_new_providerf(gp, gp->name); pp->mediasize = mediasize - sectorsize; g_error_provider(pp, 0); + g_topology_unlock(); break; } + g_topology_lock(); if (buf) g_free(buf); g_access_rel(cp, -1, 0, 0); diff --git a/sys/geom/geom_bsd.c b/sys/geom/geom_bsd.c index 6155d42..8c501e8 100644 --- a/sys/geom/geom_bsd.c +++ b/sys/geom/geom_bsd.c @@ -348,10 +348,12 @@ g_bsd_taste(struct g_class *mp, struct g_provider *pp, int flags) if (ppp->p_size == 0) continue; npart++; + g_topology_lock(); pp2 = g_slice_addslice(gp, i, ((off_t)(ppp->p_offset - ppr->p_offset)) << 9ULL, ((off_t)ppp->p_size) << 9ULL, "%s%c", pp->name, 'a' + i); + g_topology_unlock(); g_error_provider(pp2, 0); } ondisk2inram(ms); @@ -388,8 +390,10 @@ g_bsd_taste(struct g_class *mp, struct g_provider *pp, int flags) dl->d_checksum = 0; dl->d_checksum = dkcksum(dl); ms->inram = ms->ondisk; + g_topology_lock(); pp2 = g_slice_addslice(gp, RAW_PART, 0, mediasize, "%s%c", pp->name, 'a' + RAW_PART); + g_topology_unlock(); g_error_provider(pp2, 0); npart = 1; } diff --git a/sys/geom/geom_gpt.c b/sys/geom/geom_gpt.c index 99f67a4..3799a8b 100644 --- a/sys/geom/geom_gpt.c +++ b/sys/geom/geom_gpt.c @@ -220,9 +220,11 @@ g_gpt_taste(struct g_class *mp, struct g_provider *pp, int insist) bcopy(ent, gs->part[i], hdr->hdr_entsz); ps = (!memcmp(&ent->ent_type, &freebsd, sizeof(freebsd))) ? 's' : 'p'; + g_topology_lock(); (void)g_slice_addslice(gp, i, ent->ent_lba_start * secsz, (ent->ent_lba_end - ent->ent_lba_start + 1ULL) * secsz, "%s%c%d", gp->name, ps, i + 1); + g_topology_unlock(); npart++; } diff --git a/sys/geom/geom_mbr.c b/sys/geom/geom_mbr.c index 31ad77b..af56649 100644 --- a/sys/geom/geom_mbr.c +++ b/sys/geom/geom_mbr.c @@ -241,10 +241,12 @@ g_mbr_taste(struct g_class *mp, struct g_provider *pp, int insist) g_mbr_print(i, dp + i); npart++; ms->type[i] = dp[i].dp_typ; + g_topology_lock(); pp2 = g_slice_addslice(gp, i, ((off_t)dp[i].dp_start) << 9ULL, ((off_t)dp[i].dp_size) << 9ULL, "%ss%d", gp->name, i + 1); + g_topology_unlock(); } break; } @@ -373,6 +375,7 @@ g_mbrext_taste(struct g_class *mp, struct g_provider *pp, int insist __unused) g_mbrext_print(0, dp); g_mbrext_print(1, dp + 1); if (dp[0].dp_flag == 0 && dp[0].dp_size != 0) { + g_topology_lock(); pp2 = g_slice_addslice(gp, slice, (((off_t)dp[0].dp_start) << 9ULL) + off, ((off_t)dp[0].dp_size) << 9ULL, @@ -381,6 +384,7 @@ g_mbrext_taste(struct g_class *mp, struct g_provider *pp, int insist __unused) strlen(gp->name) - 1, gp->name, slice + 5); + g_topology_unlock(); ms->type[slice] = dp[0].dp_typ; slice++; g_error_provider(pp2, 0); diff --git a/sys/geom/geom_pc98.c b/sys/geom/geom_pc98.c index fc3978e..4fcdf4b 100644 --- a/sys/geom/geom_pc98.c +++ b/sys/geom/geom_pc98.c @@ -155,16 +155,15 @@ g_pc98_taste(struct g_class *mp, struct g_provider *pp, int flags) u = g_dec_le2(buf + 512 + 14 + i * 32); if (u == 0) continue; - printf("Index: %d\n", i); g_hexdump(buf+512 + i * 32, 32); start = v * fwsect * fwhead * sectorsize; length = (1 + u - v) * fwsect * fwhead * sectorsize; - printf("c%d - c%d (%jx - %jx) = %s\n", - v, u, (uintmax_t)start, (uintmax_t)length, buf + 512 + 16 + i * 32); npart++; + g_topology_lock(); pp2 = g_slice_addslice(gp, i, start, length, "%ss%d", pp->name, 1 + i); + g_topology_unlock(); g_error_provider(pp2, 0); } break; diff --git a/sys/geom/geom_slice.c b/sys/geom/geom_slice.c index 5bd20ea..c91c1cf 100644 --- a/sys/geom/geom_slice.c +++ b/sys/geom/geom_slice.c @@ -226,6 +226,62 @@ g_slice_dumpconf(struct sbuf *sb, char *indent, struct g_geom *gp, struct g_cons } } +int +g_slice_config(struct g_geom *gp, int index, int how, off_t offset, off_t length, char *fmt, ...) +{ + struct g_provider *pp; + struct g_slicer *gsp; + struct g_slice *gsl; + va_list ap; + struct sbuf *sb; + int error, acc; + + g_trace(G_T_TOPOLOGY, "g_slice_config()"); + g_topology_assert(); + gsp = gp->softc; + error = 0; + if (index >= gsp->nslice) + return(EINVAL); + gsl = &gsp->slices[index]; + pp = gsl->provider; + if (pp != NULL) + acc = pp->acr + pp->acw + pp->ace; + else + acc = 0; + if (acc != 0 && how != G_SLICE_CONFIG_FORCE) { + if (length < gsl->length) + return(EBUSY); + if (offset != gsl->offset) + return(EBUSY); + } + /* XXX: check offset + length <= MEDIASIZE */ + if (how == G_SLICE_CONFIG_CHECK) + return (0); + gsl->length = length; + gsl->offset = offset; + if (length != 0 && pp != NULL) + return (0); + if (length == 0 && pp == NULL) + return (0); + if (length == 0 && pp != NULL) { + g_orphan_provider(pp, ENXIO); + gsl->provider = NULL; + gsp->nprovider--; + return (0); + } + va_start(ap, fmt); + sb = sbuf_new(NULL, NULL, 0, SBUF_AUTOEXTEND); + sbuf_vprintf(sb, fmt, ap); + sbuf_finish(sb); + pp = g_new_providerf(gp, sbuf_data(sb)); + pp->index = index; + gsl->provider = pp; + gsp->nprovider++; + g_error_provider(pp, 0); + sbuf_delete(sb); + return(0); +} + struct g_provider * g_slice_addslice(struct g_geom *gp, int index, off_t offset, off_t length, char *fmt, ...) { @@ -235,7 +291,7 @@ g_slice_addslice(struct g_geom *gp, int index, off_t offset, off_t length, char struct sbuf *sb; g_trace(G_T_TOPOLOGY, "g_slice_addslice()"); - g_topology_lock(); + g_topology_assert(); gsp = gp->softc; va_start(ap, fmt); sb = sbuf_new(NULL, NULL, 0, SBUF_AUTOEXTEND); @@ -248,7 +304,6 @@ g_slice_addslice(struct g_geom *gp, int index, off_t offset, off_t length, char gsp->slices[index].offset = offset; gsp->slices[index].provider = pp; sbuf_delete(sb); - g_topology_unlock(); return(pp); } diff --git a/sys/geom/geom_slice.h b/sys/geom/geom_slice.h index 261adf5..8a1a27f 100644 --- a/sys/geom/geom_slice.h +++ b/sys/geom/geom_slice.h @@ -35,6 +35,9 @@ * $FreeBSD$ */ +#ifndef _GEOM_GEOM_SLICE_H_ +#define _GEOM_GEOM_SLICE_H_ + struct g_slice { off_t offset; off_t length; @@ -45,6 +48,7 @@ typedef int g_slice_start_t (struct bio *bp); struct g_slicer { int nslice; + int nprovider; off_t cfrontstuff; off_t frontstuff; struct g_slice *slices; @@ -54,5 +58,10 @@ struct g_slicer { g_dumpconf_t g_slice_dumpconf; struct g_provider * g_slice_addslice(struct g_geom *gp, int index, off_t offset, off_t length, char *fmt, ...); +int g_slice_config(struct g_geom *gp, int index, int how, off_t offset, off_t length, char *fmt, ...); +#define G_SLICE_CONFIG_CHECK 0 +#define G_SLICE_CONFIG_SET 1 +#define G_SLICE_CONFIG_FORCE 2 struct g_geom * g_slice_new(struct g_class *mp, int slices, struct g_provider *pp, struct g_consumer **cpp, void *extrap, int extra, g_slice_start_t *start); +#endif /* _GEOM_GEOM_SLICE_H_ */ diff --git a/sys/geom/geom_sunlabel.c b/sys/geom/geom_sunlabel.c index d0b75f7..8b73091 100644 --- a/sys/geom/geom_sunlabel.c +++ b/sys/geom/geom_sunlabel.c @@ -169,10 +169,12 @@ g_sunlabel_taste(struct g_class *mp, struct g_provider *pp, int flags) if (u == 0) continue; npart++; + g_topology_lock(); pp2 = g_slice_addslice(gp, i, ((off_t)v * csize) << 9ULL, ((off_t)u) << 9ULL, "%s%c", pp->name, 'a' + i); + g_topology_unlock(); g_error_provider(pp2, 0); } break; |