Reject attempts to attack a disk device that has the old NEEDSGIANT
flag set. Reviewed by: mav
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parent
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commit
d6d78db57f
Notes:
svn2git
2020-12-20 02:59:44 +00:00
svn path=/head/; revision=257131
@ -657,6 +657,13 @@ disk_create(struct disk *dp, int version)
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dp->d_name, dp->d_unit);
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return;
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}
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if (dp->d_flags & DISKFLAG_RESERVED) {
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printf("WARNING: Attempt to add non-MPSAFE disk %s%d\n",
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dp->d_name, dp->d_unit);
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printf("WARNING: Ignoring disk %s%d\n",
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dp->d_name, dp->d_unit);
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return;
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}
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KASSERT(dp->d_strategy != NULL, ("disk_create need d_strategy"));
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KASSERT(dp->d_name != NULL, ("disk_create need d_name"));
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KASSERT(*dp->d_name != 0, ("disk_create need d_name"));
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@ -103,6 +103,7 @@ struct disk {
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void *d_drv1;
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};
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#define DISKFLAG_RESERVED 0x1 /* Was NEEDSGIANT */
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#define DISKFLAG_OPEN 0x2
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#define DISKFLAG_CANDELETE 0x4
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#define DISKFLAG_CANFLUSHCACHE 0x8
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