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-rw-r--r--drivers/md/md.c58
-rw-r--r--drivers/md/raid1.c1
-rw-r--r--drivers/md/raid10.c1
-rw-r--r--drivers/md/raid5.c1
-rw-r--r--drivers/md/raid6main.c1
5 files changed, 24 insertions, 38 deletions
diff --git a/drivers/md/md.c b/drivers/md/md.c
index 60835dfd058e..c842e34d850e 100644
--- a/drivers/md/md.c
+++ b/drivers/md/md.c
@@ -3203,37 +3203,6 @@ void md_write_end(mddev_t *mddev)
3203 } 3203 }
3204} 3204}
3205 3205
3206static inline void md_enter_safemode(mddev_t *mddev)
3207{
3208 if (!mddev->safemode) return;
3209 if (mddev->safemode == 2 &&
3210 (atomic_read(&mddev->writes_pending) || mddev->in_sync ||
3211 mddev->recovery_cp != MaxSector))
3212 return; /* avoid the lock */
3213 mddev_lock_uninterruptible(mddev);
3214 if (mddev->safemode && !atomic_read(&mddev->writes_pending) &&
3215 !mddev->in_sync && mddev->recovery_cp == MaxSector) {
3216 mddev->in_sync = 1;
3217 md_update_sb(mddev);
3218 }
3219 mddev_unlock(mddev);
3220
3221 if (mddev->safemode == 1)
3222 mddev->safemode = 0;
3223}
3224
3225void md_handle_safemode(mddev_t *mddev)
3226{
3227 if (signal_pending(current)) {
3228 printk(KERN_INFO "md: %s in immediate safe mode\n",
3229 mdname(mddev));
3230 mddev->safemode = 2;
3231 flush_signals(current);
3232 }
3233 md_enter_safemode(mddev);
3234}
3235
3236
3237static DECLARE_WAIT_QUEUE_HEAD(resync_wait); 3206static DECLARE_WAIT_QUEUE_HEAD(resync_wait);
3238 3207
3239#define SYNC_MARKS 10 3208#define SYNC_MARKS 10
@@ -3449,7 +3418,6 @@ static void md_do_sync(mddev_t *mddev)
3449 mddev->recovery_cp = MaxSector; 3418 mddev->recovery_cp = MaxSector;
3450 } 3419 }
3451 3420
3452 md_enter_safemode(mddev);
3453 skip: 3421 skip:
3454 mddev->curr_resync = 0; 3422 mddev->curr_resync = 0;
3455 wake_up(&resync_wait); 3423 wake_up(&resync_wait);
@@ -3490,14 +3458,37 @@ void md_check_recovery(mddev_t *mddev)
3490 3458
3491 if (mddev->ro) 3459 if (mddev->ro)
3492 return; 3460 return;
3461
3462 if (signal_pending(current)) {
3463 if (mddev->pers->sync_request) {
3464 printk(KERN_INFO "md: %s in immediate safe mode\n",
3465 mdname(mddev));
3466 mddev->safemode = 2;
3467 }
3468 flush_signals(current);
3469 }
3470
3493 if ( ! ( 3471 if ( ! (
3494 mddev->sb_dirty || 3472 mddev->sb_dirty ||
3495 test_bit(MD_RECOVERY_NEEDED, &mddev->recovery) || 3473 test_bit(MD_RECOVERY_NEEDED, &mddev->recovery) ||
3496 test_bit(MD_RECOVERY_DONE, &mddev->recovery) 3474 test_bit(MD_RECOVERY_DONE, &mddev->recovery) ||
3475 (mddev->safemode == 1) ||
3476 (mddev->safemode == 2 && ! atomic_read(&mddev->writes_pending)
3477 && !mddev->in_sync && mddev->recovery_cp == MaxSector)
3497 )) 3478 ))
3498 return; 3479 return;
3480
3499 if (mddev_trylock(mddev)==0) { 3481 if (mddev_trylock(mddev)==0) {
3500 int spares =0; 3482 int spares =0;
3483
3484 if (mddev->safemode && !atomic_read(&mddev->writes_pending) &&
3485 !mddev->in_sync && mddev->recovery_cp == MaxSector) {
3486 mddev->in_sync = 1;
3487 mddev->sb_dirty = 1;
3488 }
3489 if (mddev->safemode == 1)
3490 mddev->safemode = 0;
3491
3501 if (mddev->sb_dirty) 3492 if (mddev->sb_dirty)
3502 md_update_sb(mddev); 3493 md_update_sb(mddev);
3503 if (test_bit(MD_RECOVERY_RUNNING, &mddev->recovery) && 3494 if (test_bit(MD_RECOVERY_RUNNING, &mddev->recovery) &&
@@ -3741,7 +3732,6 @@ EXPORT_SYMBOL(md_error);
3741EXPORT_SYMBOL(md_done_sync); 3732EXPORT_SYMBOL(md_done_sync);
3742EXPORT_SYMBOL(md_write_start); 3733EXPORT_SYMBOL(md_write_start);
3743EXPORT_SYMBOL(md_write_end); 3734EXPORT_SYMBOL(md_write_end);
3744EXPORT_SYMBOL(md_handle_safemode);
3745EXPORT_SYMBOL(md_register_thread); 3735EXPORT_SYMBOL(md_register_thread);
3746EXPORT_SYMBOL(md_unregister_thread); 3736EXPORT_SYMBOL(md_unregister_thread);
3747EXPORT_SYMBOL(md_wakeup_thread); 3737EXPORT_SYMBOL(md_wakeup_thread);
diff --git a/drivers/md/raid1.c b/drivers/md/raid1.c
index 4947f599b652..b34ad56362df 100644
--- a/drivers/md/raid1.c
+++ b/drivers/md/raid1.c
@@ -931,7 +931,6 @@ static void raid1d(mddev_t *mddev)
931 mdk_rdev_t *rdev; 931 mdk_rdev_t *rdev;
932 932
933 md_check_recovery(mddev); 933 md_check_recovery(mddev);
934 md_handle_safemode(mddev);
935 934
936 for (;;) { 935 for (;;) {
937 char b[BDEVNAME_SIZE]; 936 char b[BDEVNAME_SIZE];
diff --git a/drivers/md/raid10.c b/drivers/md/raid10.c
index 3c37be6423d7..9ae21504db8a 100644
--- a/drivers/md/raid10.c
+++ b/drivers/md/raid10.c
@@ -1216,7 +1216,6 @@ static void raid10d(mddev_t *mddev)
1216 mdk_rdev_t *rdev; 1216 mdk_rdev_t *rdev;
1217 1217
1218 md_check_recovery(mddev); 1218 md_check_recovery(mddev);
1219 md_handle_safemode(mddev);
1220 1219
1221 for (;;) { 1220 for (;;) {
1222 char b[BDEVNAME_SIZE]; 1221 char b[BDEVNAME_SIZE];
diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c
index 3cb11ac232fa..63b1c59d36ff 100644
--- a/drivers/md/raid5.c
+++ b/drivers/md/raid5.c
@@ -1546,7 +1546,6 @@ static void raid5d (mddev_t *mddev)
1546 PRINTK("+++ raid5d active\n"); 1546 PRINTK("+++ raid5d active\n");
1547 1547
1548 md_check_recovery(mddev); 1548 md_check_recovery(mddev);
1549 md_handle_safemode(mddev);
1550 1549
1551 handled = 0; 1550 handled = 0;
1552 spin_lock_irq(&conf->device_lock); 1551 spin_lock_irq(&conf->device_lock);
diff --git a/drivers/md/raid6main.c b/drivers/md/raid6main.c
index 908edd78a792..9d0e0e42a3be 100644
--- a/drivers/md/raid6main.c
+++ b/drivers/md/raid6main.c
@@ -1705,7 +1705,6 @@ static void raid6d (mddev_t *mddev)
1705 PRINTK("+++ raid6d active\n"); 1705 PRINTK("+++ raid6d active\n");
1706 1706
1707 md_check_recovery(mddev); 1707 md_check_recovery(mddev);
1708 md_handle_safemode(mddev);
1709 1708
1710 handled = 0; 1709 handled = 0;
1711 spin_lock_irq(&conf->device_lock); 1710 spin_lock_irq(&conf->device_lock);