OBS User unknown 2008-05-01 12:47:26 +00:00 committed by Git OBS Bridge
parent afdb0a7850
commit 6eeae11de8
5 changed files with 199 additions and 1 deletions

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@ -0,0 +1,36 @@
based on
commit 519561f73f7ba987affde8b174d2691bb098439d
Author: Neil Brown <neilb@suse.de>
Date: Tue Apr 29 17:13:53 2008 +1000
Fix possible bug with bitmap space allocation with v1.0 metadata
When adding a device to an array, make sure we don't reserve
so much space for the bitmap that there isn't room for the data.
(minus the roff comments change)
---
super1.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
--- super1.c.orig
+++ super1.c
@@ -903,7 +903,7 @@ static int write_init_super1(struct supe
* for a bitmap.
*/
array_size = __le64_to_cpu(sb->size);
- /* work out how much space we left of a bitmap */
+ /* work out how much space we left for a bitmap */
bm_space = choose_bm_space(array_size);
switch(st->minor_version) {
@@ -913,6 +913,8 @@ static int write_init_super1(struct supe
sb_offset &= ~(4*2-1);
sb->super_offset = __cpu_to_le64(sb_offset);
sb->data_offset = __cpu_to_le64(0);
+ if (sb_offset - bm_space < array_size)
+ bm_space = sb_offset - array_size;
sb->data_size = __cpu_to_le64(sb_offset - bm_space);
break;
case 1:

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@ -0,0 +1,70 @@
based on
commit 6fb79233b050b4a3575f0e466ab04b5d301ac1de
Author: Neil Brown <neilb@suse.de>
Date: Mon Apr 28 16:30:09 2008 +1000
Allow creation of a RAID6 with a single missing device.
This did not work before as we couldn't mark it clean as there would
be some parity blocks out of sync, and raid6 will not assemble a
dirty degraded array.
So make such arrays doubly degraded (the last device becomes a spare)
and clean.
---
Create.c | 20 ++++++++++++++++++--
1 file changed, 18 insertions(+), 2 deletions(-)
--- Create.c.orig
+++ Create.c
@@ -63,6 +63,7 @@ int Create(struct supertype *st, char *m
int fail=0, warn=0;
struct stat stb;
int first_missing = subdevs * 2;
+ int second_missing = subdevs * 2;
int missing_disks = 0;
int insert_point = subdevs * 2; /* where to insert a missing drive */
void *super;
@@ -203,6 +204,8 @@ int Create(struct supertype *st, char *m
if (strcasecmp(dname, "missing")==0) {
if (first_missing > dnum)
first_missing = dnum;
+ if (second_missing > dnum && dnum > first_missing)
+ second_missing = dnum;
missing_disks ++;
continue;
}
@@ -341,6 +344,18 @@ int Create(struct supertype *st, char *m
break;
}
}
+ /* For raid6, if creating with 1 missing drive, make a good drive
+ * into a spare, else the create will fail
+ */
+ if (assume_clean == 0 && force == 0 && first_missing < raiddisks &&
+ second_missing >= raiddisks && level == 6) {
+ insert_point = raiddisks - 1;
+ if (insert_point == first_missing)
+ insert_point--;
+ sparedisks ++;
+ array.active_disks--;
+ missing_disks++;
+ }
if (level <= 0 && first_missing != subdevs * 2) {
fprintf(stderr,
@@ -360,11 +375,12 @@ int Create(struct supertype *st, char *m
if (fstat(mdfd, &stb)==0)
array.md_minor = minor(stb.st_rdev);
array.not_persistent = 0;
- /*** FIX: Need to do something about RAID-6 here ***/
+
if ( ( (level == 4 || level == 5) &&
(insert_point < raiddisks || first_missing < raiddisks) )
||
- ( level == 6 && missing_disks == 2)
+ ( level == 6 && (insert_point < raiddisks
+ || second_missing < raiddisks))
||
assume_clean
)

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@ -0,0 +1,76 @@
Based on
commit 7a3be72fc621b4a7589e923cf0652c51493f831a
Author: Neil Brown <neilb@suse.de>
Date: Mon Apr 28 16:29:37 2008 +1000
Fix problems with array.size overflowing on large arrays.
array.size is 32bits and counts K. So for arrays with
more than 4Terrabytes, it can overflow.
The correct number can be read from sysfs, but there are still
a few places that use array.size and risk truncation. What is worse.
they compare a number of kilobytes with a number of sectors !!
So use get_component_size() to read the sysfs information, and be
more consistent about units.
---
Detail.c | 2 +-
Manage.c | 14 ++++++++++++--
2 files changed, 13 insertions(+), 3 deletions(-)
--- Detail.c.orig
+++ Detail.c
@@ -174,7 +174,7 @@ int Detail(char *dev, int brief, int exp
if (dsize > 0)
printf(" Used Dev Size : %llu%s\n",
dsize,
- human_size((long long)array.size<<10));
+ human_size((long long)dsize<<10));
else
printf(" Used Dev Size : unknown\n");
} else
--- Manage.c.orig
+++ Manage.c
@@ -188,6 +188,7 @@ int Manage_subdevs(char *devname, int fd
*/
mdu_array_info_t array;
mdu_disk_info_t disc;
+ unsigned long long array_size;
mddev_dev_t dv, next = NULL;
struct stat stb;
int j, jnext = 0;
@@ -203,6 +204,15 @@ int Manage_subdevs(char *devname, int fd
devname);
return 1;
}
+
+ /* array.size is only 32 bit and may be truncated.
+ * So read from sysfs if possible, and record number of sectors
+ */
+
+ array_size = get_component_size(fd);
+ if (array_size <= 0)
+ array_size = array.size * 2;
+
for (dv = devlist, j=0 ; dv; dv = next, j = jnext) {
unsigned long long ldsize;
char dvname[20];
@@ -335,7 +345,7 @@ int Manage_subdevs(char *devname, int fd
/* Make sure device is large enough */
if (st->ss->avail_size(st, ldsize/512) <
- array.size) {
+ array_size) {
fprintf(stderr, Name ": %s not large enough to join array\n",
dv->devname);
return 1;
@@ -409,7 +419,7 @@ int Manage_subdevs(char *devname, int fd
/* non-persistent. Must ensure that new drive
* is at least array.size big.
*/
- if (ldsize/512 < array.size) {
+ if (ldsize/512 < array_size) {
fprintf(stderr, Name ": %s not large enough to join array\n",
dv->devname);
return 1;

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@ -1,3 +1,9 @@
-------------------------------------------------------------------
Wed Apr 30 15:57:14 CEST 2008 - mmarek@suse.cz
- added some fixes from Neil's git repo, fixing bnc#368704 among
others
-------------------------------------------------------------------
Mon Feb 4 19:24:54 CET 2008 - mmarek@suse.cz

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@ -10,9 +10,10 @@
# norootforbuild
Name: mdadm
Version: 2.6.4
Release: 23
Release: 37
BuildRequires: sgmltool
PreReq: %fillup_prereq %insserv_prereq
Obsoletes: raidtools
@ -27,6 +28,9 @@ Source1: Software-RAID.HOWTO.tar.bz2
Source2: sysconfig.mdadm
Source3: mdadmd
Source4: boot.md
Patch1: mdadm-2.6.4-7a3be72f.patch
Patch2: mdadm-2.6.4-6fb79233.patch
Patch3: mdadm-2.6.4-519561f7.patch
%description
Mdadm is a program that can be used to control Linux md devices. It is
@ -41,6 +45,9 @@ Authors:
%prep
%setup -q -a1
%patch1
%patch2
%patch3
%build
%{suse_update_config -f}
@ -115,6 +122,9 @@ rm -rf $RPM_BUILD_ROOT
%{_var}/adm/fillup-templates/sysconfig.mdadm
%changelog
* Wed Apr 30 2008 mmarek@suse.cz
- added some fixes from Neil's git repo, fixing bnc#368704 among
others
* Mon Feb 04 2008 mmarek@suse.cz
- correctly display rc_status in boot.md
* Wed Jan 23 2008 mmarek@suse.cz