NeilBrown 49895bcc7e md/raid5: don't let shrink_slab shrink too far. ...

I have a report of drop_one_stripe() called from
raid5_cache_scan() apparently finding ->max_nr_stripes == 0.

This should not be allowed.

So add a test to keep max_nr_stripes above min_nr_stripes.

Also use a 'mask' rather than a 'mod' in drop_one_stripe
to ensure 'hash' is valid even if max_nr_stripes does reach zero.


Fixes: edbe83ab4c ("md/raid5: allow the stripe_cache to grow and shrink.")
Cc: stable@vger.kernel.org (4.1 - please release with 2d5b569b66)
Reported-by: Tomas Papan <tomas.papan@gmail.com>
Signed-off-by: NeilBrown <neilb@suse.com>

2015-08-03 17:10:56 +10:00

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bcache

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persistent-data

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bitmap.c

Merge tag 'md/4.2-fixes' of git://neil.brown.name/md

2015-07-25 11:24:58 -07:00

bitmap.h

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dm-bio-prison.c

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dm-bio-prison.h

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dm-bio-record.h

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dm-bufio.c

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dm-bufio.h

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dm-builtin.c

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dm-cache-block-types.h

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dm-cache-metadata.c

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dm-cache-metadata.h

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dm-cache-policy-cleaner.c

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dm-cache-policy-internal.h

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dm-cache-policy-mq.c

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dm-cache-policy-smq.c

dm cache policy smq: fix alloc_bitset check that always evaluates as false

2015-07-27 07:58:15 -04:00

dm-cache-policy.c

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dm-cache-policy.h

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dm-cache-target.c

dm cache: fix device destroy hang due to improper prealloc_used accounting

2015-07-29 14:32:09 -04:00

dm-crypt.c

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dm-delay.c

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dm-era-target.c

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dm-exception-store.c

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dm-exception-store.h

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dm-flakey.c

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dm-io.c

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dm-ioctl.c

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dm-kcopyd.c

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dm-linear.c

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dm-log-userspace-base.c

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dm-log-userspace-transfer.c

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dm-log-userspace-transfer.h

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dm-log-writes.c

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dm-log.c

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dm-mpath.c

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dm-mpath.h

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dm-path-selector.c

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dm-path-selector.h

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dm-queue-length.c

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dm-raid1.c

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dm-raid.c

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dm-region-hash.c

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dm-round-robin.c

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dm-service-time.c

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dm-snap-persistent.c

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dm-snap-transient.c

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dm-snap.c

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dm-stats.c

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dm-stats.h

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dm-stripe.c

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dm-switch.c

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dm-sysfs.c

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dm-table.c

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dm-target.c

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dm-thin-metadata.c

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dm-thin-metadata.h

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dm-thin.c

dm thin: return -ENOSPC when erroring retry list due to out of data space

2015-07-26 17:39:19 -04:00

dm-uevent.c

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dm-uevent.h

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dm-verity.c

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dm-zero.c

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dm.c

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dm.h

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faulty.c

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Kconfig

dm crypt: update wiki page URL

2015-07-27 07:58:16 -04:00

linear.c

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linear.h

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Makefile

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md-cluster.c

Fix read-balancing during node failure

2015-07-24 13:37:59 +10:00

md-cluster.h

Fix read-balancing during node failure

2015-07-24 13:37:59 +10:00

md.c

md: use kzalloc() when bitmap is disabled

2015-08-03 14:56:02 +10:00

md.h

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multipath.c

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multipath.h

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raid0.c

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raid0.h

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raid1.c

md/raid1: extend spinlock to protect raid1_end_read_request against inconsistencies

2015-08-03 12:29:42 +10:00

raid1.h

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raid5.c

md/raid5: don't let shrink_slab shrink too far.

2015-08-03 17:10:56 +10:00

raid5.h

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raid10.c

md/raid10: always set reshape_safe when initializing reshape_position.

2015-07-22 14:08:24 +10:00

raid10.h

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