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OpenCloudOS-Kernel
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md: remove PRINTK and dprintk debugging and use pr_debug 

Being able to dynamically enable these make them much more useful.

Signed-off-by: NeilBrown <neilb@suse.de>
This commit is contained in:
NeilBrown 2011-10-07 14:23:17 +11:00
parent bdc04e6b15
commit 36a4e1fe0f
3 changed files with 35 additions and 50 deletions
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33
drivers/md/bitmap.c
View File

@ -50,14 +50,6 @@
#define INJECT_FATAL_FAULT_3 0 /* undef */
#endif
#ifndef PRINTK
# if DEBUG > 0
# define PRINTK(x...) printk(KERN_DEBUG x)
# else
# define PRINTK(x...)
# endif
#endif
static inline char *bmname(struct bitmap *bitmap)
{
return bitmap->mddev ? mdname(bitmap->mddev) : "mdX";
@ -78,8 +70,8 @@ static unsigned char *bitmap_alloc_page(struct bitmap *bitmap)
if (!page)
printk("%s: bitmap_alloc_page FAILED\n", bmname(bitmap));
else
PRINTK("%s: bitmap_alloc_page: allocated page at %p\n",
bmname(bitmap), page);
pr_debug("%s: bitmap_alloc_page: allocated page at %p\n",
bmname(bitmap), page);
return page;
}
@ -88,7 +80,7 @@ static unsigned char *bitmap_alloc_page(struct bitmap *bitmap)
*/
static void bitmap_free_page(struct bitmap *bitmap, unsigned char *page)
{
PRINTK("%s: bitmap_free_page: free page %p\n", bmname(bitmap), page);
pr_debug("%s: bitmap_free_page: free page %p\n", bmname(bitmap), page);
kfree(page);
}
@ -133,8 +125,8 @@ __acquires(bitmap->lock)
spin_lock_irq(&bitmap->lock);
if (mappage == NULL) {
PRINTK("%s: bitmap map page allocation failed, hijacking\n",
bmname(bitmap));
pr_debug("%s: bitmap map page allocation failed, hijacking\n",
bmname(bitmap));
/* failed - set the hijacked flag so that we can use the
* pointer as a counter */
if (!bitmap->bp[page].map)
@ -409,8 +401,8 @@ static struct page *read_page(struct file *file, unsigned long index,
struct buffer_head *bh;
sector_t block;
PRINTK("read bitmap file (%dB @ %llu)\n", (int)PAGE_SIZE,
(unsigned long long)index << PAGE_SHIFT);
pr_debug("read bitmap file (%dB @ %llu)\n", (int)PAGE_SIZE,
(unsigned long long)index << PAGE_SHIFT);
page = alloc_page(GFP_KERNEL);
if (!page)
@ -920,7 +912,7 @@ static void bitmap_file_set_bit(struct bitmap *bitmap, sector_t block)
else
__set_bit_le(bit, kaddr);
kunmap_atomic(kaddr, KM_USER0);
PRINTK("set file bit %lu page %lu\n", bit, page->index);
pr_debug("set file bit %lu page %lu\n", bit, page->index);
/* record page number so it gets flushed to disk when unplug occurs */
set_page_attr(bitmap, page, BITMAP_PAGE_DIRTY);
}
@ -1364,8 +1356,8 @@ int bitmap_startwrite(struct bitmap *bitmap, sector_t offset, unsigned long sect
if (bw > bitmap->behind_writes_used)
bitmap->behind_writes_used = bw;
PRINTK(KERN_DEBUG "inc write-behind count %d/%d\n",
bw, bitmap->max_write_behind);
pr_debug("inc write-behind count %d/%lu\n",
bw, bitmap->mddev->bitmap_info.max_write_behind);
}
while (sectors) {
@ -1424,8 +1416,9 @@ void bitmap_endwrite(struct bitmap *bitmap, sector_t offset, unsigned long secto
if (behind) {
if (atomic_dec_and_test(&bitmap->behind_writes))
wake_up(&bitmap->behind_wait);
PRINTK(KERN_DEBUG "dec write-behind count %d/%d\n",
atomic_read(&bitmap->behind_writes), bitmap->max_write_behind);
pr_debug("dec write-behind count %d/%lu\n",
atomic_read(&bitmap->behind_writes),
bitmap->mddev->bitmap_info.max_write_behind);
}
if (bitmap->mddev->degraded)
/* Never clear bits or update events_cleared when degraded */

28
drivers/md/md.c
View File

@ -54,9 +54,6 @@
#include "md.h"
#include "bitmap.h"
#define DEBUG 0
#define dprintk(x...) ((void)(DEBUG && printk(x)))
#ifndef MODULE
static void autostart_arrays(int part);
#endif
@ -2442,27 +2439,23 @@ repeat:
sync_sbs(mddev, nospares);
spin_unlock_irq(&mddev->write_lock);
dprintk(KERN_INFO
"md: updating %s RAID superblock on device (in sync %d)\n",
mdname(mddev),mddev->in_sync);
pr_debug("md: updating %s RAID superblock on device (in sync %d)\n",
mdname(mddev), mddev->in_sync);
bitmap_update_sb(mddev->bitmap);
list_for_each_entry(rdev, &mddev->disks, same_set) {
char b[BDEVNAME_SIZE];
dprintk(KERN_INFO "md: ");
if (rdev->sb_loaded != 1)
continue; /* no noise on spare devices */
if (test_bit(Faulty, &rdev->flags))
dprintk("(skipping faulty ");
dprintk("%s ", bdevname(rdev->bdev,b));
if (!test_bit(Faulty, &rdev->flags)) {
md_super_write(mddev,rdev,
rdev->sb_start, rdev->sb_size,
rdev->sb_page);
dprintk(KERN_INFO "(write) %s's sb offset: %llu\n",
bdevname(rdev->bdev,b),
(unsigned long long)rdev->sb_start);
pr_debug("md: (write) %s's sb offset: %llu\n",
bdevname(rdev->bdev, b),
(unsigned long long)rdev->sb_start);
rdev->sb_events = mddev->events;
if (rdev->badblocks.size) {
md_super_write(mddev, rdev,
@ -2473,7 +2466,8 @@ repeat:
}
} else
dprintk(")\n");
pr_debug("md: %s (skipping faulty)\n",
bdevname(rdev->bdev, b));
if (mddev->level == LEVEL_MULTIPATH)
/* only need to write one superblock... */
break;
@ -6408,7 +6402,7 @@ static int md_thread(void * arg)
void md_wakeup_thread(mdk_thread_t *thread)
{
if (thread) {
dprintk("md: waking up MD thread %s.\n", thread->tsk->comm);
pr_debug("md: waking up MD thread %s.\n", thread->tsk->comm);
set_bit(THREAD_WAKEUP, &thread->flags);
wake_up(&thread->wqueue);
}
@ -6444,7 +6438,7 @@ void md_unregister_thread(mdk_thread_t **threadp)
mdk_thread_t *thread = *threadp;
if (!thread)
return;
dprintk("interrupting MD-thread pid %d\n", task_pid_nr(thread->tsk));
pr_debug("interrupting MD-thread pid %d\n", task_pid_nr(thread->tsk));
/* Locking ensures that mddev_unlock does not wake_up a
* non-existent thread
*/
@ -8112,7 +8106,7 @@ static struct notifier_block md_notifier = {
static void md_geninit(void)
{
dprintk("md: sizeof(mdp_super_t) = %d\n", (int)sizeof(mdp_super_t));
pr_debug("md: sizeof(mdp_super_t) = %d\n", (int)sizeof(mdp_super_t));
proc_create("mdstat", S_IRUGO, NULL, &md_seq_fops);
}

24
drivers/md/raid1.c
View File

@ -40,9 +40,6 @@
#include "raid1.h"
#include "bitmap.h"
#define DEBUG 0
#define PRINTK(x...) do { if (DEBUG) printk(x); } while (0)
/*
* Number of guaranteed r1bios in case of extreme VM load:
*/
@ -246,11 +243,11 @@ static void raid_end_bio_io(r1bio_t *r1_bio)
/* if nobody has done the final endio yet, do it now */
if (!test_and_set_bit(R1BIO_Returned, &r1_bio->state)) {
PRINTK(KERN_DEBUG "raid1: sync end %s on sectors %llu-%llu\n",
(bio_data_dir(bio) == WRITE) ? "write" : "read",
(unsigned long long) bio->bi_sector,
(unsigned long long) bio->bi_sector +
(bio->bi_size >> 9) - 1);
pr_debug("raid1: sync end %s on sectors %llu-%llu\n",
(bio_data_dir(bio) == WRITE) ? "write" : "read",
(unsigned long long) bio->bi_sector,
(unsigned long long) bio->bi_sector +
(bio->bi_size >> 9) - 1);
call_bio_endio(r1_bio);
}
@ -431,10 +428,11 @@ static void raid1_end_write_request(struct bio *bio, int error)
/* Maybe we can return now */
if (!test_and_set_bit(R1BIO_Returned, &r1_bio->state)) {
struct bio *mbio = r1_bio->master_bio;
PRINTK(KERN_DEBUG "raid1: behind end write sectors %llu-%llu\n",
(unsigned long long) mbio->bi_sector,
(unsigned long long) mbio->bi_sector +
(mbio->bi_size >> 9) - 1);
pr_debug("raid1: behind end write sectors"
" %llu-%llu\n",
(unsigned long long) mbio->bi_sector,
(unsigned long long) mbio->bi_sector +
(mbio->bi_size >> 9) - 1);
call_bio_endio(r1_bio);
}
}
@ -795,7 +793,7 @@ do_sync_io:
if (bvecs[i].bv_page)
put_page(bvecs[i].bv_page);
kfree(bvecs);
PRINTK("%dB behind alloc failed, doing sync I/O\n", bio->bi_size);
pr_debug("%dB behind alloc failed, doing sync I/O\n", bio->bi_size);
}
static int make_request(mddev_t *mddev, struct bio * bio)