diff options
| author | Sebastian Parschauer <sparschauer@suse.de> | 2017-03-14 16:40:00 +0100 |
|---|---|---|
| committer | Brian C. Lane <bcl@redhat.com> | 2017-05-01 15:04:24 -0700 |
| commit | 21131f62c6f508a5d0c080e025cf7db5df43fc7d (patch) | |
| tree | aa4ff99a76c8f70853b6db21d6af3d43ba0ed6a7 /libparted/arch/linux.c | |
| parent | 5a61f15b7003cba73e6517ac22204bafd9a3cb8e (diff) | |
| download | parted-21131f62c6f508a5d0c080e025cf7db5df43fc7d.tar.gz | |
Add support for RAM drives
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>
Diffstat (limited to 'libparted/arch/linux.c')
| -rw-r--r-- | libparted/arch/linux.c | 12 |
1 files changed, 10 insertions, 2 deletions
diff --git a/libparted/arch/linux.c b/libparted/arch/linux.c index d87fe9c..9886d6e 100644 --- a/libparted/arch/linux.c +++ b/libparted/arch/linux.c @@ -279,6 +279,7 @@ 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 \ @@ -701,6 +702,8 @@ _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; } @@ -1547,6 +1550,11 @@ 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, @@ -1619,9 +1627,9 @@ _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; |