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[PATCH] md: remove a number of misleading calls to MD_BUG 

The conditions that cause these calls to MD_BUG are not kernel bugs, just
oddities in what userspace is asking for.

Also convert analyze_sbs to return void, and the value it returned was
always 0.

Signed-off-by: Neil Brown <neilb@cse.unsw.edu.au>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
NeilBrown 2005-04-16 15:26:42 -07:00 committed by Linus Torvalds
parent d28446fe2d
commit a757e64cfa
1 changed files with 8 additions and 22 deletions
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30
drivers/md/md.c
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@ -1387,7 +1387,7 @@ abort_free:
*/
static int analyze_sbs(mddev_t * mddev)
static void analyze_sbs(mddev_t * mddev)
{
int i;
struct list_head *tmp;
@ -1441,7 +1441,6 @@ static int analyze_sbs(mddev_t * mddev)
" -- starting background reconstruction\n",
mdname(mddev));
return 0;
}
int mdp_major = 0;
@ -1508,10 +1507,9 @@ static int do_md_run(mddev_t * mddev)
struct gendisk *disk;
char b[BDEVNAME_SIZE];
if (list_empty(&mddev->disks)) {
MD_BUG();
if (list_empty(&mddev->disks))
/* cannot run an array with no devices.. */
return -EINVAL;
}
if (mddev->pers)
return -EBUSY;
@ -1519,10 +1517,8 @@ static int do_md_run(mddev_t * mddev)
/*
* Analyze all RAID superblock(s)
*/
if (!mddev->raid_disks && analyze_sbs(mddev)) {
MD_BUG();
return -EINVAL;
}
if (!mddev->raid_disks)
analyze_sbs(mddev);
chunk_size = mddev->chunk_size;
pnum = level_to_pers(mddev->level);
@ -1548,7 +1544,7 @@ static int do_md_run(mddev_t * mddev)
* chunk-size has to be a power of 2 and multiples of PAGE_SIZE
*/
if ( (1 << ffz(~chunk_size)) != chunk_size) {
MD_BUG();
printk(KERN_ERR "chunk_size of %d not valid\n", chunk_size);
return -EINVAL;
}
if (chunk_size < PAGE_SIZE) {
@ -1573,11 +1569,6 @@ static int do_md_run(mddev_t * mddev)
}
}
if (pnum >= MAX_PERSONALITY) {
MD_BUG();
return -EINVAL;
}
#ifdef CONFIG_KMOD
if (!pers[pnum])
{
@ -1762,10 +1753,8 @@ static void autorun_array(mddev_t *mddev)
struct list_head *tmp;
int err;
if (list_empty(&mddev->disks)) {
MD_BUG();
if (list_empty(&mddev->disks))
return;
}
printk(KERN_INFO "md: running: ");
@ -3128,7 +3117,6 @@ int register_md_personality(int pnum, mdk_personality_t *p)
spin_lock(&pers_lock);
if (pers[pnum]) {
spin_unlock(&pers_lock);
MD_BUG();
return -EBUSY;
}
@ -3140,10 +3128,8 @@ int register_md_personality(int pnum, mdk_personality_t *p)
int unregister_md_personality(int pnum)
{
if (pnum >= MAX_PERSONALITY) {
MD_BUG();
if (pnum >= MAX_PERSONALITY)
return -EINVAL;
}
printk(KERN_INFO "md: %s personality unregistered\n", pers[pnum]->name);
spin_lock(&pers_lock);