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Add sysctl_rename_oid() to support device_set_unit() usage. Otherwise,

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when unit numbers are changed, the sysctl devinfo tree gets out of sync
and duplicate trees are attempted to be attached with the original name.
This commit is contained in:
Peter Wemm 2007-11-30 21:29:08 +00:00
parent eb63e604ea
commit cd17ceaab8
2 changed files with 20 additions and 0 deletions
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19
sys/kern/kern_sysctl.c
View File

@ -414,6 +414,25 @@ sysctl_add_oid(struct sysctl_ctx_list *clist, struct sysctl_oid_list *parent,
return (oidp);
}
/*
* Rename an existing oid.
*/
void
sysctl_rename_oid(struct sysctl_oid *oidp, const char *name)
{
ssize_t len;
char *newname;
void *oldname;
oldname = (void *)(uintptr_t)(const void *)oidp->oid_name;
len = strlen(name);
newname = malloc(len + 1, M_SYSCTLOID, M_WAITOK);
bcopy(name, newname, len + 1);
newname[len] = '\0';
oidp->oid_name = newname;
free(oldname, M_SYSCTLOID);
}
/*
* Reparent an existing oid.
*/

1
sys/sys/sysctl.h
View File

@ -647,6 +647,7 @@ struct sysctl_oid *sysctl_add_oid(struct sysctl_ctx_list *clist,
int kind, void *arg1, int arg2,
int (*handler) (SYSCTL_HANDLER_ARGS),
const char *fmt, const char *descr);
void sysctl_rename_oid(struct sysctl_oid *oidp, const char *name);
int sysctl_move_oid(struct sysctl_oid *oidp,
struct sysctl_oid_list *parent);
int sysctl_remove_oid(struct sysctl_oid *oidp, int del, int recurse);