diff options
author | 2015-08-04 12:17:53 -0700 | |
---|---|---|
committer | 2015-08-04 15:44:42 -0700 | |
commit | 9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00 (patch) | |
tree | 1c9cafbcd35f783a87880a10f85d1a060db1a563 /kernel/block/partitions/sysv68.c | |
parent | 98260f3884f4a202f9ca5eabed40b1354c489b29 (diff) |
Add the rt linux 4.1.3-rt3 as base
Import the rt linux 4.1.3-rt3 as OPNFV kvm base.
It's from git://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git linux-4.1.y-rt and
the base is:
commit 0917f823c59692d751951bf5ea699a2d1e2f26a2
Author: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Date: Sat Jul 25 12:13:34 2015 +0200
Prepare v4.1.3-rt3
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
We lose all the git history this way and it's not good. We
should apply another opnfv project repo in future.
Change-Id: I87543d81c9df70d99c5001fbdf646b202c19f423
Signed-off-by: Yunhong Jiang <yunhong.jiang@intel.com>
Diffstat (limited to 'kernel/block/partitions/sysv68.c')
-rw-r--r-- | kernel/block/partitions/sysv68.c | 95 |
1 files changed, 95 insertions, 0 deletions
diff --git a/kernel/block/partitions/sysv68.c b/kernel/block/partitions/sysv68.c new file mode 100644 index 000000000..9627ccffc --- /dev/null +++ b/kernel/block/partitions/sysv68.c @@ -0,0 +1,95 @@ +/* + * fs/partitions/sysv68.c + * + * Copyright (C) 2007 Philippe De Muyter <phdm@macqel.be> + */ + +#include "check.h" +#include "sysv68.h" + +/* + * Volume ID structure: on first 256-bytes sector of disk + */ + +struct volumeid { + u8 vid_unused[248]; + u8 vid_mac[8]; /* ASCII string "MOTOROLA" */ +}; + +/* + * config block: second 256-bytes sector on disk + */ + +struct dkconfig { + u8 ios_unused0[128]; + __be32 ios_slcblk; /* Slice table block number */ + __be16 ios_slccnt; /* Number of entries in slice table */ + u8 ios_unused1[122]; +}; + +/* + * combined volumeid and dkconfig block + */ + +struct dkblk0 { + struct volumeid dk_vid; + struct dkconfig dk_ios; +}; + +/* + * Slice Table Structure + */ + +struct slice { + __be32 nblocks; /* slice size (in blocks) */ + __be32 blkoff; /* block offset of slice */ +}; + + +int sysv68_partition(struct parsed_partitions *state) +{ + int i, slices; + int slot = 1; + Sector sect; + unsigned char *data; + struct dkblk0 *b; + struct slice *slice; + char tmp[64]; + + data = read_part_sector(state, 0, §); + if (!data) + return -1; + + b = (struct dkblk0 *)data; + if (memcmp(b->dk_vid.vid_mac, "MOTOROLA", sizeof(b->dk_vid.vid_mac))) { + put_dev_sector(sect); + return 0; + } + slices = be16_to_cpu(b->dk_ios.ios_slccnt); + i = be32_to_cpu(b->dk_ios.ios_slcblk); + put_dev_sector(sect); + + data = read_part_sector(state, i, §); + if (!data) + return -1; + + slices -= 1; /* last slice is the whole disk */ + snprintf(tmp, sizeof(tmp), "sysV68: %s(s%u)", state->name, slices); + strlcat(state->pp_buf, tmp, PAGE_SIZE); + slice = (struct slice *)data; + for (i = 0; i < slices; i++, slice++) { + if (slot == state->limit) + break; + if (be32_to_cpu(slice->nblocks)) { + put_partition(state, slot, + be32_to_cpu(slice->blkoff), + be32_to_cpu(slice->nblocks)); + snprintf(tmp, sizeof(tmp), "(s%u)", i); + strlcat(state->pp_buf, tmp, PAGE_SIZE); + } + slot++; + } + strlcat(state->pp_buf, "\n", PAGE_SIZE); + put_dev_sector(sect); + return 1; +} |