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117 lines
4.1 KiB
117 lines
4.1 KiB
From 05501181f18cdccdb0b3cec1d8cf59f0995504d7 Mon Sep 17 00:00:00 2001 |
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From: Pawel Baldysiak <pawel.baldysiak@intel.com> |
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Date: Fri, 8 Mar 2019 12:19:11 +0100 |
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Subject: [RHEL7.8 PATCH V2 22/47] imsm: fix spare activation for old matrix |
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arrays |
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During spare activation get_extents() calculates metadata reserved space based |
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on smallest active RAID member or it will take the defaults. Since patch |
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611d9529("imsm: change reserved space to 4MB") default is extended. If array |
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was created prior that patch, reserved space is smaller. In case of matrix |
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RAID - spare is activated in each array one-by-one, so it is spare for first |
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activation, but treated as "active" during second one. |
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In case of adding spare drive to old matrix RAID with the size the same as |
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already existing member drive the routine will take the defaults during second |
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run and mdmon will refuse to rebuild second volume, claiming that the drive |
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does not have enough free space. |
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Add parameter to get_extents(), so the during spare activation reserved space |
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is always based on smallest active drive - even if given drive is already |
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active in some other array of matrix RAID. |
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Signed-off-by: Pawel Baldysiak <pawel.baldysiak@intel.com> |
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Signed-off-by: Jes Sorensen <jsorensen@fb.com> |
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--- |
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super-intel.c | 19 ++++++++++--------- |
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1 file changed, 10 insertions(+), 9 deletions(-) |
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diff --git a/super-intel.c b/super-intel.c |
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index c399433..5a7c9f8 100644 |
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--- a/super-intel.c |
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+++ b/super-intel.c |
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@@ -1313,7 +1313,8 @@ static unsigned long long per_dev_array_size(struct imsm_map *map) |
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return array_size; |
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} |
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-static struct extent *get_extents(struct intel_super *super, struct dl *dl) |
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+static struct extent *get_extents(struct intel_super *super, struct dl *dl, |
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+ int get_minimal_reservation) |
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{ |
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/* find a list of used extents on the given physical device */ |
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struct extent *rv, *e; |
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@@ -1325,7 +1326,7 @@ static struct extent *get_extents(struct intel_super *super, struct dl *dl) |
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* regardless of whether the OROM has assigned sectors from the |
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* IMSM_RESERVED_SECTORS region |
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*/ |
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- if (dl->index == -1) |
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+ if (dl->index == -1 || get_minimal_reservation) |
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reservation = imsm_min_reserved_sectors(super); |
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else |
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reservation = MPB_SECTOR_CNT + IMSM_RESERVED_SECTORS; |
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@@ -1386,7 +1387,7 @@ static __u32 imsm_reserved_sectors(struct intel_super *super, struct dl *dl) |
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if (dl->index == -1) |
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return MPB_SECTOR_CNT; |
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- e = get_extents(super, dl); |
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+ e = get_extents(super, dl, 0); |
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if (!e) |
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return MPB_SECTOR_CNT + IMSM_RESERVED_SECTORS; |
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@@ -1478,7 +1479,7 @@ static __u32 imsm_min_reserved_sectors(struct intel_super *super) |
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return rv; |
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/* find last lba used by subarrays on the smallest active disk */ |
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- e = get_extents(super, dl_min); |
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+ e = get_extents(super, dl_min, 0); |
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if (!e) |
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return rv; |
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for (i = 0; e[i].size; i++) |
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@@ -1519,7 +1520,7 @@ int get_spare_criteria_imsm(struct supertype *st, struct spare_criteria *c) |
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if (!dl) |
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return -EINVAL; |
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/* find last lba used by subarrays */ |
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- e = get_extents(super, dl); |
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+ e = get_extents(super, dl, 0); |
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if (!e) |
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return -EINVAL; |
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for (i = 0; e[i].size; i++) |
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@@ -7203,7 +7204,7 @@ static int validate_geometry_imsm_volume(struct supertype *st, int level, |
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pos = 0; |
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i = 0; |
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- e = get_extents(super, dl); |
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+ e = get_extents(super, dl, 0); |
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if (!e) continue; |
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do { |
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unsigned long long esize; |
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@@ -7261,7 +7262,7 @@ static int validate_geometry_imsm_volume(struct supertype *st, int level, |
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} |
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/* retrieve the largest free space block */ |
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- e = get_extents(super, dl); |
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+ e = get_extents(super, dl, 0); |
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maxsize = 0; |
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i = 0; |
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if (e) { |
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@@ -7359,7 +7360,7 @@ static int imsm_get_free_size(struct supertype *st, int raiddisks, |
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if (super->orom && dl->index < 0 && mpb->num_raid_devs) |
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continue; |
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- e = get_extents(super, dl); |
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+ e = get_extents(super, dl, 0); |
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if (!e) |
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continue; |
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for (i = 1; e[i-1].size; i++) |
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@@ -8846,7 +8847,7 @@ static struct dl *imsm_add_spare(struct intel_super *super, int slot, |
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/* Does this unused device have the requisite free space? |
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* It needs to be able to cover all member volumes |
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*/ |
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- ex = get_extents(super, dl); |
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+ ex = get_extents(super, dl, 1); |
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if (!ex) { |
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dprintf("cannot get extents\n"); |
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continue; |
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-- |
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2.7.5 |
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