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Merge branch 'for-linus' of git://neil.brown.name/md 

* 'for-linus' of git://neil.brown.name/md:
  md: resolve confusion of MD_CHANGE_CLEAN
  md: don't clear MD_CHANGE_CLEAN in md_update_sb() for external arrays
  Move .gitignore from drivers/md to lib/raid6
This commit is contained in:
Linus Torvalds 2010-09-07 14:37:34 -07:00
parent 61f953cbaa 070dc6dd71
commit dc6f962eb5
5 changed files with 16 additions and 22 deletions
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4
drivers/md/.gitignore vendored
View File

@ -1,4 +0,0 @@
mktables
raid6altivec*.c
raid6int*.c
raid6tables.c

3
drivers/md/bitmap.c
View File

@ -1542,8 +1542,7 @@ void bitmap_cond_end_sync(struct bitmap *bitmap, sector_t sector)
atomic_read(&bitmap->mddev->recovery_active) == 0);
bitmap->mddev->curr_resync_completed = bitmap->mddev->curr_resync;
if (bitmap->mddev->persistent)
set_bit(MD_CHANGE_CLEAN, &bitmap->mddev->flags);
set_bit(MD_CHANGE_CLEAN, &bitmap->mddev->flags);
sector &= ~((1ULL << CHUNK_BLOCK_SHIFT(bitmap)) - 1);
s = 0;
while (s < sector && s < bitmap->mddev->resync_max_sectors) {

25
drivers/md/md.c
View File

@ -2167,9 +2167,9 @@ repeat:
rdev->recovery_offset = mddev->curr_resync_completed;
}
if (mddev->external || !mddev->persistent) {
clear_bit(MD_CHANGE_DEVS, &mddev->flags);
if (!mddev->persistent) {
clear_bit(MD_CHANGE_CLEAN, &mddev->flags);
clear_bit(MD_CHANGE_DEVS, &mddev->flags);
wake_up(&mddev->sb_wait);
return;
}
@ -2178,7 +2178,6 @@ repeat:
mddev->utime = get_seconds();
set_bit(MD_CHANGE_PENDING, &mddev->flags);
if (test_and_clear_bit(MD_CHANGE_DEVS, &mddev->flags))
force_change = 1;
if (test_and_clear_bit(MD_CHANGE_CLEAN, &mddev->flags))
@ -3371,7 +3370,7 @@ array_state_show(mddev_t *mddev, char *page)
case 0:
if (mddev->in_sync)
st = clean;
else if (test_bit(MD_CHANGE_CLEAN, &mddev->flags))
else if (test_bit(MD_CHANGE_PENDING, &mddev->flags))
st = write_pending;
else if (mddev->safemode)
st = active_idle;
@ -3452,9 +3451,7 @@ array_state_store(mddev_t *mddev, const char *buf, size_t len)
mddev->in_sync = 1;
if (mddev->safemode == 1)
mddev->safemode = 0;
if (mddev->persistent)
set_bit(MD_CHANGE_CLEAN,
&mddev->flags);
set_bit(MD_CHANGE_CLEAN, &mddev->flags);
}
err = 0;
} else
@ -3466,8 +3463,7 @@ array_state_store(mddev_t *mddev, const char *buf, size_t len)
case active:
if (mddev->pers) {
restart_array(mddev);
if (mddev->external)
clear_bit(MD_CHANGE_CLEAN, &mddev->flags);
clear_bit(MD_CHANGE_PENDING, &mddev->flags);
wake_up(&mddev->sb_wait);
err = 0;
} else {
@ -6572,6 +6568,7 @@ void md_write_start(mddev_t *mddev, struct bio *bi)
if (mddev->in_sync) {
mddev->in_sync = 0;
set_bit(MD_CHANGE_CLEAN, &mddev->flags);
set_bit(MD_CHANGE_PENDING, &mddev->flags);
md_wakeup_thread(mddev->thread);
did_change = 1;
}
@ -6580,7 +6577,6 @@ void md_write_start(mddev_t *mddev, struct bio *bi)
if (did_change)
sysfs_notify_dirent_safe(mddev->sysfs_state);
wait_event(mddev->sb_wait,
!test_bit(MD_CHANGE_CLEAN, &mddev->flags) &&
!test_bit(MD_CHANGE_PENDING, &mddev->flags));
}
@ -6616,6 +6612,7 @@ int md_allow_write(mddev_t *mddev)
if (mddev->in_sync) {
mddev->in_sync = 0;
set_bit(MD_CHANGE_CLEAN, &mddev->flags);
set_bit(MD_CHANGE_PENDING, &mddev->flags);
if (mddev->safemode_delay &&
mddev->safemode == 0)
mddev->safemode = 1;
@ -6625,7 +6622,7 @@ int md_allow_write(mddev_t *mddev)
} else
spin_unlock_irq(&mddev->write_lock);
if (test_bit(MD_CHANGE_CLEAN, &mddev->flags))
if (test_bit(MD_CHANGE_PENDING, &mddev->flags))
return -EAGAIN;
else
return 0;
@ -6823,8 +6820,7 @@ void md_do_sync(mddev_t *mddev)
atomic_read(&mddev->recovery_active) == 0);
mddev->curr_resync_completed =
mddev->curr_resync;
if (mddev->persistent)
set_bit(MD_CHANGE_CLEAN, &mddev->flags);
set_bit(MD_CHANGE_CLEAN, &mddev->flags);
sysfs_notify(&mddev->kobj, NULL, "sync_completed");
}
@ -7103,8 +7099,7 @@ void md_check_recovery(mddev_t *mddev)
mddev->recovery_cp == MaxSector) {
mddev->in_sync = 1;
did_change = 1;
if (mddev->persistent)
set_bit(MD_CHANGE_CLEAN, &mddev->flags);
set_bit(MD_CHANGE_CLEAN, &mddev->flags);
}
if (mddev->safemode == 1)
mddev->safemode = 0;

2
drivers/md/md.h
View File

@ -140,7 +140,7 @@ struct mddev_s
unsigned long flags;
#define MD_CHANGE_DEVS 0 /* Some device status has changed */
#define MD_CHANGE_CLEAN 1 /* transition to or from 'clean' */
#define MD_CHANGE_PENDING 2 /* superblock update in progress */
#define MD_CHANGE_PENDING 2 /* switch from 'clean' to 'active' in progress */
int suspended;
atomic_t active_io;

4
lib/raid6/.gitignore vendored Normal file
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@ -0,0 +1,4 @@
mktables
altivec*.c
int*.c
tables.c