850cf2857b
- SLE15 continues to use mdadm-4.0, synchronize mdadm package from
SLE12-SP3 to SLE15, re-order all patches.
- Rename the following patches, they are deleted and re-add in next
part of patches
0001-Generic-support-for-consistency-policy-and-PPL.patch
0002-Detail-show-consistency-policy.patch
0002-The-mdcheck-script-now-adds-messages-to-the-system.patch
0003-imsm-PPL-support.patch
0004-super1-PPL-support.patch
0005-Add-ppl-and-no-ppl-options-for-update.patch
0006-Grow-support-consistency-policy-change.patch
0007-udev-md-raid-assembly.rules-Skip-non-ready-devices.patch
0008-Retry-HOT_REMOVE_DISK-a-few-times.patch
0009-Introduce-sys_hot_remove_disk.patch
0010-Add-force-flag-to-hot_remove_disk.patch
0011-Detail-handle-non-existent-arrays-better.patch
- Synchronize patches from mdadm of SLE12-SP3, the above renamed
patches are re-add here,
0001-Makefile-Fix-date-to-be-output-in-ISO-format.patch
0002-imsm-fix-missing-error-message-during-migration.patch
0003-Fix-oddity-where-mdadm-did-not-recognise-a-relative-.patch
0004-mdadm-check-the-nodes-when-operate-clustered-array.patch
0005-examine-tidy-up-some-code.patch
0006-mdadm-add-man-page-for-symlinks.patch
0007-mdadm-add-checking-clustered-bitmap-in-assemble-mode.patch
0008-mdadm-Add-Wimplicit-fallthrough-0-in-Makefile.patch
0009-mdadm-Specify-enough-length-when-write-to-buffer.patch
0010-mdadm-it-doesn-t-make-sense-to-set-bitmap-twice.patch
0011-mdadm-Monitor-Fix-NULL-pointer-dereference-when-stat.patch
0012-Replace-snprintf-with-strncpy-at-some-places-to-avoi.patch
OBS-URL: https://build.opensuse.org/request/show/517978
OBS-URL: https://build.opensuse.org/package/show/Base:System/mdadm?expand=0&rev=150
55 lines
1.5 KiB
Diff
55 lines
1.5 KiB
Diff
From 039df36231335fabe4da1a22fa3accb160d8bc1b Mon Sep 17 00:00:00 2001
|
|
From: NeilBrown <neilb@suse.com>
|
|
Date: Wed, 12 Apr 2017 16:29:04 +1000
|
|
Subject: [PATCH] mdopen: use parameters/new_array to create arrays whenever
|
|
possible.
|
|
|
|
In a sufficiently recent kernel, an md%d array can be
|
|
created by writing to .../parameters/new_array.
|
|
If mdadm does this consistently, then another new
|
|
feature, disabling create_on_open, can be enabled.
|
|
This avoids races on shutdown.
|
|
|
|
An added benefit of using new_array (where available)
|
|
is that it allows md arrays with numbers larger than 511
|
|
(e.g. md999) to be created. The old create_on_open
|
|
mechanism doesn't support such devices since
|
|
Commit: af5628f05db6 ("md: disable probing for md devices 512 and over.")
|
|
in Linux 3.17.
|
|
|
|
After a few more mdadm releases it would be good to
|
|
have mdadm disable create_on_open automatically.
|
|
|
|
Signed-off-by: NeilBrown <neilb@suse.com>
|
|
Signed-off-by: Jes Sorensen <jsorensen@fb.com>
|
|
---
|
|
mdopen.c | 12 ++++++++++++
|
|
1 file changed, 12 insertions(+)
|
|
|
|
diff --git a/mdopen.c b/mdopen.c
|
|
index fe240e5..82b97fc 100644
|
|
--- a/mdopen.c
|
|
+++ b/mdopen.c
|
|
@@ -313,6 +313,18 @@ int create_mddev(char *dev, char *name, int autof, int trustworthy,
|
|
if (n < 0)
|
|
devnm[0] = 0;
|
|
}
|
|
+ if (num >= 0) {
|
|
+ int fd;
|
|
+ int n = -1;
|
|
+ sprintf(devnm, "md%d", num);
|
|
+ fd = open("/sys/module/md_mod/parameters/new_array", O_WRONLY);
|
|
+ if (fd >= 0) {
|
|
+ n = write(fd, devnm, strlen(devnm));
|
|
+ close(fd);
|
|
+ }
|
|
+ if (n < 0)
|
|
+ devnm[0] = 0;
|
|
+ }
|
|
if (devnm[0])
|
|
;
|
|
else if (num < 0) {
|
|
--
|
|
2.10.2
|
|
|