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For MD_PRELOAD type md(4) devices, if there is a file name in the preloaded

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meta-data, copy it into the softc structure.

When returning md(4) device details to the caller, include the file name in
any MD_PRELOAD type devices if it is set (first character is not NUL.)

In mdconfig, for "preload" type md(4) devices, if there is file config
available, print it in the file column of the output.

Reviewed by:	brooks
Approved by:	sjg (mentor)
MFC after:	1 month
Sponsored by:	Juniper Networks, Inc.
Differential Revision:	https://reviews.freebsd.org/D9529
This commit is contained in:
Stephen J. Kiernan 2017-02-13 17:44:07 +00:00
parent 627c036f65
commit d2e6391342
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=313701
2 changed files with 10 additions and 4 deletions
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3
sbin/mdconfig/mdconfig.c
View file

@ -452,7 +452,8 @@ md_list(const char *units, int opt, const char *fflag)
}
gc = &pp->lg_config;
type = geom_config_get(gc, "type");
if (strcmp(type, "vnode") == 0) {
if (strcmp(type, "vnode") == 0 ||
strcmp(type, "preload") == 0) {
file = geom_config_get(gc, "file");
if (fflag != NULL &&
strcmp(fflag, file) != 0)

11
sys/dev/md/md.c
View file

@ -1689,7 +1689,8 @@ xmdctlioctl(struct cdev *dev, u_long cmd, caddr_t addr, int flags, struct thread
mdio->md_options = sc->flags;
mdio->md_mediasize = sc->mediasize;
mdio->md_sectorsize = sc->sectorsize;
if (sc->type == MD_VNODE)
if (sc->type == MD_VNODE ||
(sc->type == MD_PRELOAD && mdio->md_file != NULL))
error = copyout(sc->file, mdio->md_file,
strlen(sc->file) + 1);
return (error);
@ -1733,6 +1734,8 @@ md_preloaded(u_char *image, size_t length, const char *name)
sc->pl_ptr = image;
sc->pl_len = length;
sc->start = mdstart_preload;
if (name != NULL)
strlcpy(sc->file, name, sizeof(sc->file));
#if defined(MD_ROOT) && !defined(ROOTDEVNAME)
if (sc->unit == 0)
rootdevnames[0] = MD_ROOT_FSTYPE ":/dev/md0";
@ -1835,7 +1838,8 @@ g_md_dumpconf(struct sbuf *sb, const char *indent, struct g_geom *gp,
sbuf_printf(sb, " fs %ju", (uintmax_t) mp->fwsectors);
sbuf_printf(sb, " l %ju", (uintmax_t) mp->mediasize);
sbuf_printf(sb, " t %s", type);
if (mp->type == MD_VNODE && mp->vnode != NULL)
if ((mp->type == MD_VNODE && mp->vnode != NULL) ||
(mp->type == MD_PRELOAD && mp->file[0] != '\0'))
sbuf_printf(sb, " file %s", mp->file);
} else {
sbuf_printf(sb, "%s<unit>%d</unit>\n", indent,
@ -1855,7 +1859,8 @@ g_md_dumpconf(struct sbuf *sb, const char *indent, struct g_geom *gp,
"read-only");
sbuf_printf(sb, "%s<type>%s</type>\n", indent,
type);
if (mp->type == MD_VNODE && mp->vnode != NULL) {
if ((mp->type == MD_VNODE && mp->vnode != NULL) ||
(mp->type == MD_PRELOAD && mp->file[0] != '\0'))
sbuf_printf(sb, "%s<file>", indent);
g_conf_printf_escaped(sb, "%s", mp->file);
sbuf_printf(sb, "</file>\n");