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42 lines
1.3 KiB
42 lines
1.3 KiB
11 months ago
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From eb45d0add7cf2918f838bec2d93d99cf2d9c662f Mon Sep 17 00:00:00 2001
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From: NeilBrown <neilb@suse.de>
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Date: Mon, 13 Mar 2023 14:42:58 +1100
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Subject: [PATCH 107/125] Use existence of /etc/initrd-release to detect
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initrd.
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Since v183, systemd has used the existence of /etc/initrd-release to
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detect if it is running in an initrd, rather than looking at the magic
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number of the root filesystem's device. It is time for mdadm to do the
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same.
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Signed-off-by: NeilBrown <neilb@suse.de>
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Signed-off-by: Jes Sorensen <jes@trained-monkey.org>
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---
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util.c | 10 +---------
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1 file changed, 1 insertion(+), 9 deletions(-)
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diff --git a/util.c b/util.c
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index 9f1e1f7c..509fb43e 100644
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--- a/util.c
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+++ b/util.c
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@@ -2227,15 +2227,7 @@ int continue_via_systemd(char *devnm, char *service_name)
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int in_initrd(void)
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{
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- /* This is based on similar function in systemd. */
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- struct statfs s;
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- /* statfs.f_type is signed long on s390x and MIPS, causing all
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- sorts of sign extension problems with RAMFS_MAGIC being
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- defined as 0x858458f6 */
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- return statfs("/", &s) >= 0 &&
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- ((unsigned long)s.f_type == TMPFS_MAGIC ||
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- ((unsigned long)s.f_type & 0xFFFFFFFFUL) ==
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- ((unsigned long)RAMFS_MAGIC & 0xFFFFFFFFUL));
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+ return access("/etc/initrd-release", F_OK) >= 0;
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}
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void reopen_mddev(int mdfd)
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--
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2.38.1
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