zipl: Flush disk buffers before installing IPL record (#857814)
This commit is contained in:
Dan Horák
parent
bf8cdf527f
commit
88755424bf
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@ -1,7 +1,7 @@
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From 911c72bbf7ae362111593e82c4dfe730a44a1e8f Mon Sep 17 00:00:00 2001
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From: Dan Horak <dan@danny.cz>
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Date: Sun, 20 Jul 2008 09:24:05 +0200
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Subject: [PATCH 1/5] s390-tools-1.5.3-zipl-zfcpdump-2
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Subject: [PATCH 1/6] s390-tools-1.5.3-zipl-zfcpdump-2
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---
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common.mak | 4 ++--
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@ -29,7 +29,7 @@ index 5321ccb..541a232 100644
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From d8a4a2d505564e597cefab16871c35cfb6f06854 Mon Sep 17 00:00:00 2001
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From: =?UTF-8?q?Dan=20Hor=C3=A1k?= <dan@danny.cz>
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Date: Thu, 23 Apr 2009 11:46:01 +0200
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Subject: [PATCH 2/5] s390-tools-1.8.1-fdasd-su
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Subject: [PATCH 2/6] s390-tools-1.8.1-fdasd-su
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---
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fdasd/fdasd.c | 10 ++++++----
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@ -63,7 +63,7 @@ index 842e72a..3ab81c0 100644
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From 39ac18ef1622f4ae1254983530e120a7d036aff7 Mon Sep 17 00:00:00 2001
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From: =?UTF-8?q?Dan=20Hor=C3=A1k?= <dan@danny.cz>
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Date: Fri, 19 Jun 2009 10:01:30 +0200
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Subject: [PATCH 3/5] s390-tools-1.8.1-zipl-kdump-man
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Subject: [PATCH 3/6] s390-tools-1.8.1-zipl-kdump-man
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Description: Add kdump kernel installation instruction to zipl man page.
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Symptom: User wants to prepare SCSI disk for dump, but has not installed
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@ -95,7 +95,7 @@ index 01d18c5..e699b59 100644
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From 0dc93d3f17430677e1e218124bef32730d4f35ea Mon Sep 17 00:00:00 2001
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From: =?UTF-8?q?Dan=20Hor=C3=A1k?= <dan@danny.cz>
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Date: Tue, 21 Aug 2012 09:58:21 +0200
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Subject: [PATCH 4/5] Support for new storage device on System z (rhbz#847086)
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Subject: [PATCH 4/6] Support for new storage device on System z (rhbz#847086)
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Allow Linux to access a new storage device as a block device using a new interface.
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That includes the adaption of common IO functions to allow to attach, configure
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@ -408,7 +408,7 @@ index 0000000..25a8a2a
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From 93b91117cbe2c0d036bf10a8cc139bee2ba94caf Mon Sep 17 00:00:00 2001
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From: =?UTF-8?q?Dan=20Hor=C3=A1k?= <dan@danny.cz>
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Date: Mon, 27 Aug 2012 16:34:25 +0200
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Subject: [PATCH 5/5] lszcrypt/chzcrypt: Add support for CEX4 crypto card
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Subject: [PATCH 5/6] lszcrypt/chzcrypt: Add support for CEX4 crypto card
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(rhbz#847092)
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---
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@ -792,3 +792,46 @@ index 01d4fa7..e8ca6ce 100644
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--
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1.7.7.6
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From 9cdbb967999268021ca326b405abf01d00d1f7b2 Mon Sep 17 00:00:00 2001
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From: =?UTF-8?q?Dan=20Hor=C3=A1k?= <dan@danny.cz>
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Date: Mon, 17 Sep 2012 10:05:47 +0200
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Subject: [PATCH 6/6] zipl: Flush disk buffers before installing IPL record
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(rhbz#857814)
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---
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zipl/src/install.c | 11 +++++++++++
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1 files changed, 11 insertions(+), 0 deletions(-)
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diff --git a/zipl/src/install.c b/zipl/src/install.c
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index 87d6243..ca3fc2c 100644
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--- a/zipl/src/install.c
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+++ b/zipl/src/install.c
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@@ -45,6 +45,9 @@ enum scsi_layout {
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scsi_layout_unknown
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};
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+/* From linux/fs.h */
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+#define BLKFLSBUF _IO(0x12, 97)
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+
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/* Determine SCSI disk layout from the specified BOOTBLOCK. */
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static enum scsi_layout
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@@ -275,6 +278,14 @@ install_bootloader(const char *device, disk_blockptr_t *program_table,
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device);
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return -1;
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}
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+ /* Ensure that potential cache inconsistencies between disk and
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+ * partition are resolved by flushing the corresponding buffers. */
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+ if (!dry_run) {
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+ if (ioctl(fd, BLKFLSBUF)) {
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+ fprintf(stderr, "Warning: Could not flush disk "
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+ "caches.\n");
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+ }
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+ }
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/* Call disk specific install functions */
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rc = -1;
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switch (info->type) {
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--
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1.7.7.6
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@ -8,7 +8,7 @@ Name: s390utils
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Summary: Utilities and daemons for IBM System/z
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Group: System Environment/Base
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Version: 1.19.0
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Release: 2%{?dist}
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Release: 3%{?dist}
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Epoch: 2
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License: GPLv2 and GPLv2+ and CPL
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ExclusiveArch: s390 s390x
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@ -857,8 +857,11 @@ User-space development files for the s390/s390x architecture.
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%changelog
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* Mon Sep 16 2012 Dan Horák <dan[at]danny.cz> - 2:1.19.0-3
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- zipl: Flush disk buffers before installing IPL record (#857814)
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* Mon Aug 27 2012 Dan Horák <dan[at]danny.cz> 2:1.19.0-2
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- add support fro CEX4 devices to chzcrypt/lszcrypt (#847092)
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- add support for CEX4 devices to chzcrypt/lszcrypt (#847092)
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* Mon Aug 27 2012 Dan Horák <dan[at]danny.cz> 2:1.19.0-1
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- updated to 1.19.0 (#804774)
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