The patch titled
revert "md: improve partition detection in md array"
has been removed from the -mm tree. Its filename was
revert-md-improve-partition-detection-in-md-array.patch
This patch was dropped because it was merged into mainline or a subsystem tree
------------------------------------------------------
Subject: revert "md: improve partition detection in md array"
From: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
Fix http://bugzilla.kernel.org/show_bug.cgi?id=8461
Cc: Neil Brown <neilb@xxxxxxx>
Cc: Nicolas Mailhot <Nicolas.Mailhot@xxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
drivers/md/md.c | 26 ++++++++++++++++++--------
drivers/md/raid1.c | 1 +
drivers/md/raid5.c | 2 ++
include/linux/raid/md_k.h | 1 +
4 files changed, 22 insertions(+), 8 deletions(-)
diff -puN drivers/md/md.c~revert-md-improve-partition-detection-in-md-array drivers/md/md.c
--- a/drivers/md/md.c~revert-md-improve-partition-detection-in-md-array
+++ a/drivers/md/md.c
@@ -3104,7 +3104,6 @@ static int do_md_run(mddev_t * mddev)
struct gendisk *disk;
struct mdk_personality *pers;
char b[BDEVNAME_SIZE];
- struct block_device *bdev;
if (list_empty(&mddev->disks))
/* cannot run an array with no devices.. */
@@ -3332,13 +3331,7 @@ static int do_md_run(mddev_t * mddev)
md_wakeup_thread(mddev->thread);
md_wakeup_thread(mddev->sync_thread); /* possibly kick off a reshape */
- bdev = bdget_disk(mddev->gendisk, 0);
- if (bdev) {
- bd_set_size(bdev, mddev->array_size << 1);
- blkdev_ioctl(bdev->bd_inode, NULL, BLKRRPART, 0);
- bdput(bdev);
- }
-
+ mddev->changed = 1;
md_new_event(mddev);
kobject_uevent(&mddev->gendisk->kobj, KOBJ_CHANGE);
return 0;
@@ -3460,6 +3453,7 @@ static int do_md_stop(mddev_t * mddev, i
mddev->pers = NULL;
set_capacity(disk, 0);
+ mddev->changed = 1;
if (mddev->ro)
mddev->ro = 0;
@@ -4599,6 +4593,20 @@ static int md_release(struct inode *inod
return 0;
}
+static int md_media_changed(struct gendisk *disk)
+{
+ mddev_t *mddev = disk->private_data;
+
+ return mddev->changed;
+}
+
+static int md_revalidate(struct gendisk *disk)
+{
+ mddev_t *mddev = disk->private_data;
+
+ mddev->changed = 0;
+ return 0;
+}
static struct block_device_operations md_fops =
{
.owner = THIS_MODULE,
@@ -4606,6 +4614,8 @@ static struct block_device_operations md
.release = md_release,
.ioctl = md_ioctl,
.getgeo = md_getgeo,
+ .media_changed = md_media_changed,
+ .revalidate_disk= md_revalidate,
};
static int md_thread(void * arg)
diff -puN drivers/md/raid1.c~revert-md-improve-partition-detection-in-md-array drivers/md/raid1.c
--- a/drivers/md/raid1.c~revert-md-improve-partition-detection-in-md-array
+++ a/drivers/md/raid1.c
@@ -2063,6 +2063,7 @@ static int raid1_resize(mddev_t *mddev,
*/
mddev->array_size = sectors>>1;
set_capacity(mddev->gendisk, mddev->array_size << 1);
+ mddev->changed = 1;
if (mddev->array_size > mddev->size && mddev->recovery_cp == MaxSector) {
mddev->recovery_cp = mddev->size << 1;
set_bit(MD_RECOVERY_NEEDED, &mddev->recovery);
diff -puN drivers/md/raid5.c~revert-md-improve-partition-detection-in-md-array drivers/md/raid5.c
--- a/drivers/md/raid5.c~revert-md-improve-partition-detection-in-md-array
+++ a/drivers/md/raid5.c
@@ -4514,6 +4514,7 @@ static int raid5_resize(mddev_t *mddev,
sectors &= ~((sector_t)mddev->chunk_size/512 - 1);
mddev->array_size = (sectors * (mddev->raid_disks-conf->max_degraded))>>1;
set_capacity(mddev->gendisk, mddev->array_size << 1);
+ mddev->changed = 1;
if (sectors/2 > mddev->size && mddev->recovery_cp == MaxSector) {
mddev->recovery_cp = mddev->size << 1;
set_bit(MD_RECOVERY_NEEDED, &mddev->recovery);
@@ -4648,6 +4649,7 @@ static void end_reshape(raid5_conf_t *co
conf->mddev->array_size = conf->mddev->size *
(conf->raid_disks - conf->max_degraded);
set_capacity(conf->mddev->gendisk, conf->mddev->array_size << 1);
+ conf->mddev->changed = 1;
bdev = bdget_disk(conf->mddev->gendisk, 0);
if (bdev) {
diff -puN include/linux/raid/md_k.h~revert-md-improve-partition-detection-in-md-array include/linux/raid/md_k.h
--- a/include/linux/raid/md_k.h~revert-md-improve-partition-detection-in-md-array
+++ a/include/linux/raid/md_k.h
@@ -201,6 +201,7 @@ struct mddev_s
struct mutex reconfig_mutex;
atomic_t active;
+ int changed; /* true if we might need to reread partition info */
int degraded; /* whether md should consider
* adding a spare
*/
_
Patches currently in -mm which might be from akpm@xxxxxxxxxxxxxxxxxxxx are
origin.patch
upper-32-bits.patch
afs-write-support-fixes.patch
revert-md-improve-partition-detection-in-md-array.patch
git-acpi.patch
git-acpi-export-acpi_set_cstate_limit.patch
git-alsa.patch
working-3d-dri-intel-agpko-resume-for-i815-chip-tidy.patch
git-avr32.patch
fix-gregkh-driver-sysfs-fix-error-handling-in-binattr-write.patch
cinergyt2-fix-file-release-handler.patch
i2c-add-driver-for-dallas-ds1682-elapsed-time-recorder-fix.patch
git-hid-fixup.patch
git-ia64-sa_interrupt-is-deprecated.patch
sn-validate-smp_affinity-mask-on-intr-redirect-fix.patch
sn-validate-smp_affinity-mask-on-intr-redirect-fix-2.patch
git-ieee1394.patch
sbp2-include-fixes.patch
ieee1394-iso-needs-schedh.patch
pata_acpi-restore-driver-vs-libata-clean-up-sff-init-mess-fix.patch
git-battery.patch
git-parisc.patch
fix-gregkh-pci-pci-remove-the-broken-pci_multithread_probe-option.patch
git-pciseg.patch
scsi-fix-config_scsi_wait_scan=m.patch
git-block-fixup.patch
git-unionfs.patch
auerswald-fix-file-release-handler.patch
git-watchdog.patch
git-wireless.patch
git-wireless-fixup.patch
i386-map-enough-initial-memory-to-create-lowmem-mappings-fix.patch
i386-add-support-for-picopower-irq-router-fix.patch
blacklist-dell-optiplex-320-from-using-the-hpet.patch
x86_64-rename-and-export-bad_srat-to-kernel-code-fix.patch
x86_64-extract-helper-function-from-e820_register_active_regions-fix.patch
xfs-clean-up-shrinker-games.patch
change-zonelist-order-v6-zonelist-fix.patch
lazy-freeing-of-memory-through-madv_free.patch
add-__gfp_movable-for-callers-to-flag-allocations-from-high-memory-that-may-be-migrated.patch
group-short-lived-and-reclaimable-kernel-allocations-use-slab_account_reclaim-to-determine-when-__gfp_reclaimable-should-be-used-fix.patch
bias-the-location-of-pages-freed-for-min_free_kbytes-in-the-same-max_order_nr_pages-blocks.patch
mm-merge-populate-and-nopage-into-fault-fixes-nonlinear.patch
mm-merge-nopfn-into-fault.patch
maps2-move-the-page-walker-code-to-lib.patch
maps2-add-proc-pid-pagemap-interface.patch
fix-kthread_create-vs-freezer-theoretical-race.patch
m32r-fix-switch_to-macro-to-push-pop-frame-pointer-if-fix.patch
cache-pipe-buf-page-address-for-non-highmem-arch.patch
lib-hexdump.patch
use-write_trylock_irqsave-in-ptrace_attach-fix.patch
synclink_gt-add-compat_ioctl-fix.patch
stop_machine-now-uses-hard_irq_disable-fix.patch
add-lzo1x-compression-support-to-the-kernel-fix.patch
tty-add-compat_ioctl.patch
mpc52xx-psc-spi-master-driver-update-tidy.patch
linux-kernel-markers-architecture-independant-code-update-fix.patch
linux-kernel-markers-powerpc-optimization-fix.patch
linux-kernel-markers-i386-optimization.patch
linux-kernel-markers-documentation-update.patch
signal-timer-event-fds-v9-signalfd-core.patch
signal-timer-event-fds-v9-timerfd-core.patch
signal-timer-event-fds-v9-eventfd-core.patch
revoke-wire-up-i386-system-calls.patch
lguest-the-host-code.patch
ntfs-use-zero_user_page.patch
pm3fb-preliminary-24-to-26-port-fix.patch
reiser4.patch
integrity-new-hooks.patch
integrity-evm-as-an-integrity-service-provider.patch
integrity-ima-integrity_measure-support.patch
integrity-tpm-internal-kernel-interface.patch
w1-build-fix.patch
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