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imsm: add maximum number of disk validation in RAID array 

Arrays exceeding the OROM/EFI maximum number of supported disk are
blocked in validate_geometry_imsm_orom function.

Signed-off-by: Marcin Labun <marcin.labun@intel.com>
Signed-off-by: NeilBrown <neilb@suse.de>
This commit is contained in:
Labun, Marcin 2011-03-10 11:50:54 +11:00 committed by NeilBrown
parent d54559f08a
commit 7340812950
1 changed files with 19 additions and 2 deletions
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21
super-intel.c
View File

@ -4230,12 +4230,30 @@ static int is_raid_level_supported(const struct imsm_orom *orom, int level, int
return 0;
}
#define pr_vrb(fmt, arg...) (void) (verbose && fprintf(stderr, Name fmt, ##arg))
/*
* validate volume parameters with OROM/EFI capabilities
*/
static int
validate_geometry_imsm_orom(struct intel_super *super, int level, int layout,
int raiddisks, int *chunk, int verbose)
{
if (!is_raid_level_supported(super->orom, level, raiddisks)) {
#if DEBUG
verbose = 1;
#endif
/* validate container capabilities */
if (super->orom && raiddisks > super->orom->tds) {
if (verbose)
fprintf(stderr, Name ": %d exceeds maximum number of"
" platform supported disks: %d\n",
raiddisks, super->orom->tds);
return 0;
}
/* capabilities of OROM tested - copied from validate_geometry_imsm_volume */
if (super->orom && (!is_raid_level_supported(super->orom, level,
raiddisks))) {
pr_vrb(": platform does not support raid%d with %d disk%s\n",
level, raiddisks, raiddisks > 1 ? "s" : "");
return 0;
@ -4259,7 +4277,6 @@ validate_geometry_imsm_orom(struct intel_super *super, int level, int layout,
layout, level);
return 0;
}
return 1;
}