Accepting request 494630 from home:sparschauer:branches:Base:System
Add support for RAM drives (bsc#1006834) OBS-URL: https://build.opensuse.org/request/show/494630 OBS-URL: https://build.opensuse.org/package/show/Base:System/parted?expand=0&rev=126
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Sebastian Parschauer
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libparted-Add-support-for-RAM-drives.patch
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95
libparted-Add-support-for-RAM-drives.patch
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From: Sebastian Parschauer <sparschauer@suse.de>
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Date: Tue, 14 Mar 2017 16:40:00 +0100
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Subject: Add support for RAM drives
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References: bsc#1006834
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Patch-mainline: v3.3
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Git-commit: 21131f62c6f508a5d0c080e025cf7db5df43fc7d
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Recognize RAM drives, so "parted -s /dev/ram0 p" now prints
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"RAM Drive (brd)" instead of "Model: Unknown (unknown)".
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In order for a device to be recognized as RAM drive, it has to
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have major number 1. Also the BLKFLSBUF ioctl shouldn't be used
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on RAM drives as it is used to zero the device.
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* NEWS: Mention the change
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* include/parted/device.h.in(PedDeviceType): Add PED_DEVICE_RAM.
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* libparted/arch/linux.c(RAM_MAJOR): New define.
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* libparted/arch/linux.c(_device_probe_type): Recognize RAM drives.
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* libparted/arch/linux.c(linux_new): Handle RAM drives.
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* libparted/arch/linux.c(_flush_cache): Skip RAM drives.
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* parted/parted.c(do_print): Add "brd" to list of transports.
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Signed-off-by: Sebastian Parschauer <sparschauer@suse.de>
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---
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include/parted/device.in.h | 3 ++-
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libparted/arch/linux.c | 12 ++++++++++--
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parted/parted.c | 2 +-
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3 files changed, 13 insertions(+), 4 deletions(-)
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--- a/include/parted/device.in.h
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+++ b/include/parted/device.in.h
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@@ -50,7 +50,8 @@ typedef enum {
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PED_DEVICE_AOE = 16,
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PED_DEVICE_MD = 17,
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PED_DEVICE_LOOP = 18,
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- PED_DEVICE_NVME = 19
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+ PED_DEVICE_NVME = 19,
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+ PED_DEVICE_RAM = 20
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} PedDeviceType;
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typedef struct _PedDevice PedDevice;
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--- a/libparted/arch/linux.c
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+++ b/libparted/arch/linux.c
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@@ -280,6 +280,7 @@ struct blkdev_ioctl_param {
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#define LOOP_MAJOR 7
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#define MD_MAJOR 9
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#define BLKEXT_MAJOR 259
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+#define RAM_MAJOR 1
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#define SCSI_BLK_MAJOR(M) ( \
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(M) == SCSI_DISK0_MAJOR \
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@@ -721,6 +722,8 @@ _device_probe_type (PedDevice* dev)
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dev->type = PED_DEVICE_MD;
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} else if (_is_blkext_major(dev_major) && dev->path && strstr(dev->path, "nvme")) {
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dev->type = PED_DEVICE_NVME;
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+ } else if (dev_major == RAM_MAJOR) {
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+ dev->type = PED_DEVICE_RAM;
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} else {
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dev->type = PED_DEVICE_UNKNOWN;
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}
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@@ -1553,6 +1556,11 @@ linux_new (const char* path)
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goto error_free_arch_specific;
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break;
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+ case PED_DEVICE_RAM:
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+ if (!init_generic (dev, _("RAM Drive")))
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+ goto error_free_arch_specific;
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+ break;
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+
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default:
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ped_exception_throw (PED_EXCEPTION_NO_FEATURE,
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PED_EXCEPTION_CANCEL,
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@@ -1625,9 +1633,9 @@ _flush_cache (PedDevice* dev)
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{
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LinuxSpecific* arch_specific = LINUX_SPECIFIC (dev);
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int i;
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- int lpn = _device_get_partition_range(dev);
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+ int lpn = _device_get_partition_range(dev);
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- if (dev->read_only)
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+ if (dev->read_only || dev->type == PED_DEVICE_RAM)
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return;
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dev->dirty = 0;
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--- a/parted/parted.c
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+++ b/parted/parted.c
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@@ -1035,7 +1035,7 @@ _print_disk_info (const PedDevice *dev,
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"cpqarray", "file", "ataraid", "i2o",
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"ubd", "dasd", "viodasd", "sx8", "dm",
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"xvd", "sd/mmc", "virtblk", "aoe",
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- "md", "loopback", "nvme"};
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+ "md", "loopback", "nvme", "brd"};
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char* start = ped_unit_format (dev, 0);
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PedUnit default_unit = ped_unit_get_default ();
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@ -1,3 +1,10 @@
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-------------------------------------------------------------------
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Thu May 11 12:53:20 CEST 2017 - sparschauer@suse.de
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- Add support for RAM drives for not erasing them when printing
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their partitions (bsc#1006834)
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- add: libparted-Add-support-for-RAM-drives.patch
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-------------------------------------------------------------------
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-------------------------------------------------------------------
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Tue May 2 10:45:37 CEST 2017 - sparschauer@suse.de
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Tue May 2 10:45:37 CEST 2017 - sparschauer@suse.de
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@ -67,6 +67,7 @@ Patch37: libparted-dont-warn-if-no-HDIO_GET_IDENTITY.patch
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Patch38: libparted-dasd-unify-vtoc-handling-for-cdl-ldl.patch
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Patch38: libparted-dasd-unify-vtoc-handling-for-cdl-ldl.patch
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Patch39: libparted-dasd-update-and-improve-fdasd-functions.patch
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Patch39: libparted-dasd-update-and-improve-fdasd-functions.patch
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Patch40: libparted-dasd-add-new-fdasd-functions.patch
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Patch40: libparted-dasd-add-new-fdasd-functions.patch
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Patch41: libparted-Add-support-for-RAM-drives.patch
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Patch100: parted-fatresize-autoconf.patch
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Patch100: parted-fatresize-autoconf.patch
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BuildRequires: check-devel
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BuildRequires: check-devel
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BuildRequires: device-mapper-devel >= 1.02.33
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BuildRequires: device-mapper-devel >= 1.02.33
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@ -150,6 +151,7 @@ to develop applications that require these.
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%patch38 -p1
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%patch38 -p1
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%patch39 -p1
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%patch39 -p1
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%patch40 -p1
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%patch40 -p1
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%patch41 -p1
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%patch100 -p1
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%patch100 -p1
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%build
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%build
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