The patch titled
md: remove the working_disks and failed_disks from raid5 state data.
has been added to the -mm tree. Its filename is
md-remove-the-working_disks-and-failed_disks-from-raid5-state-data.patch
See http://www.zip.com.au/~akpm/linux/patches/stuff/added-to-mm.txt to find
out what to do about this
------------------------------------------------------
Subject: md: remove the working_disks and failed_disks from raid5 state data.
From: NeilBrown <neilb@xxxxxxx>
They are not needed. conf->failed_disks is the same as mddev->degraded and
conf->working_disks is conf->raid_disks - mddev->degraded.
Signed-off-by: Neil Brown <neilb@xxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxx>
---
drivers/md/raid5.c | 20 ++++++++------------
include/linux/raid/raid5.h | 2 +-
2 files changed, 9 insertions(+), 13 deletions(-)
diff -puN drivers/md/raid5.c~md-remove-the-working_disks-and-failed_disks-from-raid5-state-data drivers/md/raid5.c
--- a/drivers/md/raid5.c~md-remove-the-working_disks-and-failed_disks-from-raid5-state-data
+++ a/drivers/md/raid5.c
@@ -698,9 +698,7 @@ static void error(mddev_t *mddev, mdk_rd
if (!test_bit(Faulty, &rdev->flags)) {
set_bit(MD_CHANGE_DEVS, &mddev->flags);
if (test_bit(In_sync, &rdev->flags)) {
- conf->working_disks--;
mddev->degraded++;
- conf->failed_disks++;
clear_bit(In_sync, &rdev->flags);
/*
* if recovery was running, make sure it aborts.
@@ -711,7 +709,7 @@ static void error(mddev_t *mddev, mdk_rd
printk (KERN_ALERT
"raid5: Disk failure on %s, disabling device."
" Operation continuing on %d devices\n",
- bdevname(rdev->bdev,b), conf->working_disks);
+ bdevname(rdev->bdev,b), conf->raid_disks - mddev->degraded);
}
}
@@ -3074,6 +3072,7 @@ static int run(mddev_t *mddev)
mdk_rdev_t *rdev;
struct disk_info *disk;
struct list_head *tmp;
+ int working_disks = 0;
if (mddev->level != 5 && mddev->level != 4 && mddev->level != 6) {
printk(KERN_ERR "raid5: %s: raid level not set to 4/5/6 (%d)\n",
@@ -3176,14 +3175,14 @@ static int run(mddev_t *mddev)
printk(KERN_INFO "raid5: device %s operational as raid"
" disk %d\n", bdevname(rdev->bdev,b),
raid_disk);
- conf->working_disks++;
+ working_disks++;
}
}
/*
* 0 for a fully functional array, 1 or 2 for a degraded array.
*/
- mddev->degraded = conf->failed_disks = conf->raid_disks - conf->working_disks;
+ mddev->degraded = conf->raid_disks - working_disks;
conf->mddev = mddev;
conf->chunk_size = mddev->chunk_size;
conf->level = mddev->level;
@@ -3218,7 +3217,7 @@ static int run(mddev_t *mddev)
if (mddev->degraded > conf->max_degraded) {
printk(KERN_ERR "raid5: not enough operational devices for %s"
" (%d/%d failed)\n",
- mdname(mddev), conf->failed_disks, conf->raid_disks);
+ mdname(mddev), mddev->degraded, conf->raid_disks);
goto abort;
}
@@ -3375,7 +3374,7 @@ static void status (struct seq_file *seq
int i;
seq_printf (seq, " level %d, %dk chunk, algorithm %d", mddev->level, mddev->chunk_size >> 10, mddev->layout);
- seq_printf (seq, " [%d/%d] [", conf->raid_disks, conf->working_disks);
+ seq_printf (seq, " [%d/%d] [", conf->raid_disks, conf->raid_disks - mddev->degraded);
for (i = 0; i < conf->raid_disks; i++)
seq_printf (seq, "%s",
conf->disks[i].rdev &&
@@ -3397,8 +3396,8 @@ static void print_raid5_conf (raid5_conf
printk("(conf==NULL)\n");
return;
}
- printk(" --- rd:%d wd:%d fd:%d\n", conf->raid_disks,
- conf->working_disks, conf->failed_disks);
+ printk(" --- rd:%d wd:%d\n", conf->raid_disks,
+ conf->raid_disks - conf->mddev->degraded);
for (i = 0; i < conf->raid_disks; i++) {
char b[BDEVNAME_SIZE];
@@ -3422,8 +3421,6 @@ static int raid5_spare_active(mddev_t *m
&& !test_bit(Faulty, &tmp->rdev->flags)
&& !test_bit(In_sync, &tmp->rdev->flags)) {
mddev->degraded--;
- conf->failed_disks--;
- conf->working_disks++;
set_bit(In_sync, &tmp->rdev->flags);
}
}
@@ -3593,7 +3590,6 @@ static int raid5_start_reshape(mddev_t *
if (raid5_add_disk(mddev, rdev)) {
char nm[20];
set_bit(In_sync, &rdev->flags);
- conf->working_disks++;
added_devices++;
rdev->recovery_offset = 0;
sprintf(nm, "rd%d", rdev->raid_disk);
diff -puN include/linux/raid/raid5.h~md-remove-the-working_disks-and-failed_disks-from-raid5-state-data include/linux/raid/raid5.h
--- a/include/linux/raid/raid5.h~md-remove-the-working_disks-and-failed_disks-from-raid5-state-data
+++ a/include/linux/raid/raid5.h
@@ -214,7 +214,7 @@ struct raid5_private_data {
struct disk_info *spare;
int chunk_size, level, algorithm;
int max_degraded;
- int raid_disks, working_disks, failed_disks;
+ int raid_disks;
int max_nr_stripes;
/* used during an expand */
_
Patches currently in -mm which might be from neilb@xxxxxxx are
ext3-avoid-triggering-ext3_error-on-bad-nfs-file-handle.patch
knfsd-fix-stale-file-handle-problem-with-subtree_checking.patch
knfsd-knfsd-add-some-missing-newlines-in-printks.patch
knfsd-knfsd-remove-an-unused-variable-from-e_show.patch
knfsd-knfsd-remove-an-unused-variable-from-auth_unix_lookup.patch
knfsd-add-a-callback-for-when-last-rpc-thread-finishes.patch
knfsd-add-a-callback-for-when-last-rpc-thread-finishes-tidy.patch
knfsd-be-more-selective-in-which-sockets-lockd-listens-on.patch
knfsd-remove-nfsd_versbits-as-intermediate-storage-for-desired-versions.patch
knfsd-separate-out-some-parts-of-nfsd_svc-which-start-nfs-servers.patch
knfsd-separate-out-some-parts-of-nfsd_svc-which-start-nfs-servers-tweaks.patch
knfsd-define-new-nfsdfs-file-portlist-contains-list-of-ports.patch
knfsd-define-new-nfsdfs-file-portlist-contains-list-of-ports-tidy.patch
knfsd-define-new-nfsdfs-file-portlist-contains-list-of-ports-fix.patch
knfsd-allow-sockets-to-be-passed-to-nfsd-via-portlist.patch
knfsd-use-seq_start_token-instead-of-hardcoded-magic-void1.patch
knfsd-have-ext2-reject-file-handles-with-bad-inode-numbers-early.patch
knfsd-have-ext2-reject-file-handles-with-bad-inode-numbers-early-tidy.patch
knfsd-make-ext3-reject-filehandles-referring-to-invalid-inode-numbers.patch
knfsd-make-ext3-reject-filehandles-referring-to-invalid-inode-numbers-tidy.patch
knfsd-drop-serv-option-to-svc_recv-and-svc_process.patch
knfsd-drop-serv-option-to-svc_recv-and-svc_process-nfs-callback-fix-nfs-callback-fix.patch
knfsd-check-return-value-of-lockd_up-in-write_ports.patch
knfsd-move-makesock-failed-warning-into-make_socks.patch
knfsd-correctly-handle-error-condition-from-lockd_up.patch
knfsd-move-tempsock-aging-to-a-timer.patch
knfsd-move-tempsock-aging-to-a-timer-tidy.patch
knfsd-convert-sk_inuse-to-atomic_t.patch
knfsd-use-new-lock-for-svc_sock-deferred-list.patch
knfsd-convert-sk_reserved-to-atomic_t.patch
knfsd-test-and-set-sk_busy-atomically.patch
knfsd-split-svc_serv-into-pools.patch
knfsd-add-svc_get.patch
knfsd-add-svc_set_num_threads.patch
knfsd-use-svc_set_num_threads-to-manage-threads-in-knfsd.patch
knfsd-make-rpc-threads-pools-numa-aware.patch
knfsd-allow-admin-to-set-nthreads-per-node.patch
md-the-scheduled-removal-of-the-start_array-ioctl-for-md.patch
md-fix-a-comment-that-is-wrong-in-raid5h.patch
md-factor-out-part-of-raid1d-into-a-separate-function.patch
md-factor-out-part-of-raid10d-into-a-separate-function.patch
md-replace-magic-numbers-in-sb_dirty-with-well-defined-bit-flags.patch
md-remove-the-working_disks-and-failed_disks-from-raid5-state-data.patch
md-remove-working_disks-from-raid10-state.patch
md-remove-working_disks-from-raid1-state-data.patch
md-improve-locking-around-error-handling.patch
md-dm-reduce-stack-usage-with-stacked-block-devices.patch
-
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