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md: discard PRINT_RAID_DEBUG ioctl

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All the interesting information printed by this ioctl
is provided in /proc/mdstat and/or sysfs.
So it isn't needed and isn't used and would be best if it didn't
exist.

Signed-off-by: NeilBrown <neilb@suse.de>
This commit is contained in:
NeilBrown 2014-09-30 16:02:19 +10:00
parent 403df47888
commit 2cbbca5e7c
2 changed files with 0 additions and 139 deletions
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138
drivers/md/md.c
View file

@ -66,8 +66,6 @@ static void autostart_arrays(int part);
static LIST_HEAD(pers_list);
static DEFINE_SPINLOCK(pers_lock);
static void md_print_devices(void);
static DECLARE_WAIT_QUEUE_HEAD(resync_wait);
static struct workqueue_struct *md_wq;
static struct workqueue_struct *md_misc_wq;
@ -2171,136 +2169,6 @@ static void export_array(struct mddev *mddev)
mddev->major_version = 0;
}
static void print_desc(mdp_disk_t *desc)
{
printk(" DISK<N:%d,(%d,%d),R:%d,S:%d>\n", desc->number,
desc->major,desc->minor,desc->raid_disk,desc->state);
}
static void print_sb_90(mdp_super_t *sb)
{
int i;
printk(KERN_INFO
"md: SB: (V:%d.%d.%d) ID:<%08x.%08x.%08x.%08x> CT:%08x\n",
sb->major_version, sb->minor_version, sb->patch_version,
sb->set_uuid0, sb->set_uuid1, sb->set_uuid2, sb->set_uuid3,
sb->ctime);
printk(KERN_INFO "md: L%d S%08d ND:%d RD:%d md%d LO:%d CS:%d\n",
sb->level, sb->size, sb->nr_disks, sb->raid_disks,
sb->md_minor, sb->layout, sb->chunk_size);
printk(KERN_INFO "md: UT:%08x ST:%d AD:%d WD:%d"
" FD:%d SD:%d CSUM:%08x E:%08lx\n",
sb->utime, sb->state, sb->active_disks, sb->working_disks,
sb->failed_disks, sb->spare_disks,
sb->sb_csum, (unsigned long)sb->events_lo);
printk(KERN_INFO);
for (i = 0; i < MD_SB_DISKS; i++) {
mdp_disk_t *desc;
desc = sb->disks + i;
if (desc->number || desc->major || desc->minor ||
desc->raid_disk || (desc->state && (desc->state != 4))) {
printk(" D %2d: ", i);
print_desc(desc);
}
}
printk(KERN_INFO "md: THIS: ");
print_desc(&sb->this_disk);
}
static void print_sb_1(struct mdp_superblock_1 *sb)
{
__u8 *uuid;
uuid = sb->set_uuid;
printk(KERN_INFO
"md: SB: (V:%u) (F:0x%08x) Array-ID:<%pU>\n"
"md: Name: \"%s\" CT:%llu\n",
le32_to_cpu(sb->major_version),
le32_to_cpu(sb->feature_map),
uuid,
sb->set_name,
(unsigned long long)le64_to_cpu(sb->ctime)
& MD_SUPERBLOCK_1_TIME_SEC_MASK);
uuid = sb->device_uuid;
printk(KERN_INFO
"md: L%u SZ%llu RD:%u LO:%u CS:%u DO:%llu DS:%llu SO:%llu"
" RO:%llu\n"
"md: Dev:%08x UUID: %pU\n"
"md: (F:0x%08x) UT:%llu Events:%llu ResyncOffset:%llu CSUM:0x%08x\n"
"md: (MaxDev:%u) \n",
le32_to_cpu(sb->level),
(unsigned long long)le64_to_cpu(sb->size),
le32_to_cpu(sb->raid_disks),
le32_to_cpu(sb->layout),
le32_to_cpu(sb->chunksize),
(unsigned long long)le64_to_cpu(sb->data_offset),
(unsigned long long)le64_to_cpu(sb->data_size),
(unsigned long long)le64_to_cpu(sb->super_offset),
(unsigned long long)le64_to_cpu(sb->recovery_offset),
le32_to_cpu(sb->dev_number),
uuid,
sb->devflags,
(unsigned long long)le64_to_cpu(sb->utime) & MD_SUPERBLOCK_1_TIME_SEC_MASK,
(unsigned long long)le64_to_cpu(sb->events),
(unsigned long long)le64_to_cpu(sb->resync_offset),
le32_to_cpu(sb->sb_csum),
le32_to_cpu(sb->max_dev)
);
}
static void print_rdev(struct md_rdev *rdev, int major_version)
{
char b[BDEVNAME_SIZE];
printk(KERN_INFO "md: rdev %s, Sect:%08llu F:%d S:%d DN:%u\n",
bdevname(rdev->bdev, b), (unsigned long long)rdev->sectors,
test_bit(Faulty, &rdev->flags), test_bit(In_sync, &rdev->flags),
rdev->desc_nr);
if (rdev->sb_loaded) {
printk(KERN_INFO "md: rdev superblock (MJ:%d):\n", major_version);
switch (major_version) {
case 0:
print_sb_90(page_address(rdev->sb_page));
break;
case 1:
print_sb_1(page_address(rdev->sb_page));
break;
}
} else
printk(KERN_INFO "md: no rdev superblock!\n");
}
static void md_print_devices(void)
{
struct list_head *tmp;
struct md_rdev *rdev;
struct mddev *mddev;
char b[BDEVNAME_SIZE];
printk("\n");
printk("md: **********************************\n");
printk("md: * <COMPLETE RAID STATE PRINTOUT> *\n");
printk("md: **********************************\n");
for_each_mddev(mddev, tmp) {
if (mddev->bitmap)
bitmap_print_sb(mddev->bitmap);
else
printk("%s: ", mdname(mddev));
rdev_for_each(rdev, mddev)
printk("<%s>", bdevname(rdev->bdev,b));
printk("\n");
rdev_for_each(rdev, mddev)
print_rdev(rdev, mddev->major_version);
}
printk("md: **********************************\n");
printk("\n");
}
static void sync_sbs(struct mddev *mddev, int nospares)
{
/* Update each superblock (in-memory image), but
@ -6285,7 +6153,6 @@ static inline bool md_ioctl_valid(unsigned int cmd)
case GET_DISK_INFO:
case HOT_ADD_DISK:
case HOT_REMOVE_DISK:
case PRINT_RAID_DEBUG:
case RAID_AUTORUN:
case RAID_VERSION:
case RESTART_ARRAY_RW:
@ -6331,11 +6198,6 @@ static int md_ioctl(struct block_device *bdev, fmode_t mode,
err = get_version(argp);
goto out;
case PRINT_RAID_DEBUG:
err = 0;
md_print_devices();
goto out;
#ifndef MODULE
case RAID_AUTORUN:
err = 0;

1
include/uapi/linux/raid/md_u.h
View file

@ -39,7 +39,6 @@
#define RAID_VERSION _IOR (MD_MAJOR, 0x10, mdu_version_t)
#define GET_ARRAY_INFO _IOR (MD_MAJOR, 0x11, mdu_array_info_t)
#define GET_DISK_INFO _IOR (MD_MAJOR, 0x12, mdu_disk_info_t)
#define PRINT_RAID_DEBUG _IO (MD_MAJOR, 0x13)
#define RAID_AUTORUN _IO (MD_MAJOR, 0x14)
#define GET_BITMAP_FILE _IOR (MD_MAJOR, 0x15, mdu_bitmap_file_t)