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Accepting request 494630 from home:sparschauer:branches:Base:System

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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
This commit is contained in:
Sebastian Parschauer 2017-05-11 13:21:28 +00:00 committed by Git OBS Bridge
parent ef69beac35
commit 942f78ffab
3 changed files with 104 additions and 0 deletions
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95
libparted-Add-support-for-RAM-drives.patch Normal file
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@ -0,0 +1,95 @@
From: Sebastian Parschauer <sparschauer@suse.de>
Date: Tue, 14 Mar 2017 16:40:00 +0100
Subject: Add support for RAM drives
References: bsc#1006834
Patch-mainline: v3.3
Git-commit: 21131f62c6f508a5d0c080e025cf7db5df43fc7d
Recognize RAM drives, so "parted -s /dev/ram0 p" now prints
"RAM Drive (brd)" instead of "Model: Unknown (unknown)".
In order for a device to be recognized as RAM drive, it has to
have major number 1. Also the BLKFLSBUF ioctl shouldn't be used
on RAM drives as it is used to zero the device.
* NEWS: Mention the change
* include/parted/device.h.in(PedDeviceType): Add PED_DEVICE_RAM.
* libparted/arch/linux.c(RAM_MAJOR): New define.
* libparted/arch/linux.c(_device_probe_type): Recognize RAM drives.
* libparted/arch/linux.c(linux_new): Handle RAM drives.
* libparted/arch/linux.c(_flush_cache): Skip RAM drives.
* parted/parted.c(do_print): Add "brd" to list of transports.
Signed-off-by: Sebastian Parschauer <sparschauer@suse.de>
---
include/parted/device.in.h | 3 ++-
libparted/arch/linux.c | 12 ++++++++++--
parted/parted.c | 2 +-
3 files changed, 13 insertions(+), 4 deletions(-)
--- a/include/parted/device.in.h
+++ b/include/parted/device.in.h
@@ -50,7 +50,8 @@ typedef enum {
PED_DEVICE_AOE = 16,
PED_DEVICE_MD = 17,
PED_DEVICE_LOOP = 18,
- PED_DEVICE_NVME = 19
+ PED_DEVICE_NVME = 19,
+ PED_DEVICE_RAM = 20
} PedDeviceType;
typedef struct _PedDevice PedDevice;
--- a/libparted/arch/linux.c
+++ b/libparted/arch/linux.c
@@ -280,6 +280,7 @@ struct blkdev_ioctl_param {
#define LOOP_MAJOR 7
#define MD_MAJOR 9
#define BLKEXT_MAJOR 259
+#define RAM_MAJOR 1
#define SCSI_BLK_MAJOR(M) ( \
(M) == SCSI_DISK0_MAJOR \
@@ -721,6 +722,8 @@ _device_probe_type (PedDevice* dev)
dev->type = PED_DEVICE_MD;
} else if (_is_blkext_major(dev_major) && dev->path && strstr(dev->path, "nvme")) {
dev->type = PED_DEVICE_NVME;
+ } else if (dev_major == RAM_MAJOR) {
+ dev->type = PED_DEVICE_RAM;
} else {
dev->type = PED_DEVICE_UNKNOWN;
}
@@ -1553,6 +1556,11 @@ linux_new (const char* path)
goto error_free_arch_specific;
break;
+ case PED_DEVICE_RAM:
+ if (!init_generic (dev, _("RAM Drive")))
+ goto error_free_arch_specific;
+ break;
+
default:
ped_exception_throw (PED_EXCEPTION_NO_FEATURE,
PED_EXCEPTION_CANCEL,
@@ -1625,9 +1633,9 @@ _flush_cache (PedDevice* dev)
{
LinuxSpecific* arch_specific = LINUX_SPECIFIC (dev);
int i;
- int lpn = _device_get_partition_range(dev);
+ int lpn = _device_get_partition_range(dev);
- if (dev->read_only)
+ if (dev->read_only || dev->type == PED_DEVICE_RAM)
return;
dev->dirty = 0;
--- a/parted/parted.c
+++ b/parted/parted.c
@@ -1035,7 +1035,7 @@ _print_disk_info (const PedDevice *dev,
"cpqarray", "file", "ataraid", "i2o",
"ubd", "dasd", "viodasd", "sx8", "dm",
"xvd", "sd/mmc", "virtblk", "aoe",
- "md", "loopback", "nvme"};
+ "md", "loopback", "nvme", "brd"};
char* start = ped_unit_format (dev, 0);
PedUnit default_unit = ped_unit_get_default ();

7
parted.changes
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@ -1,3 +1,10 @@
-------------------------------------------------------------------
Thu May 11 12:53:20 CEST 2017 - sparschauer@suse.de
- Add support for RAM drives for not erasing them when printing
their partitions (bsc#1006834)
- add: libparted-Add-support-for-RAM-drives.patch
-------------------------------------------------------------------
Tue May 2 10:45:37 CEST 2017 - sparschauer@suse.de

2
parted.spec
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@ -67,6 +67,7 @@ Patch37: libparted-dont-warn-if-no-HDIO_GET_IDENTITY.patch
Patch38: libparted-dasd-unify-vtoc-handling-for-cdl-ldl.patch
Patch39: libparted-dasd-update-and-improve-fdasd-functions.patch
Patch40: libparted-dasd-add-new-fdasd-functions.patch
Patch41: libparted-Add-support-for-RAM-drives.patch
Patch100: parted-fatresize-autoconf.patch
BuildRequires: check-devel
BuildRequires: device-mapper-devel >= 1.02.33
@ -150,6 +151,7 @@ to develop applications that require these.
%patch38 -p1
%patch39 -p1
%patch40 -p1
%patch41 -p1
%patch100 -p1
%build