diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2012-01-08 12:19:57 -0800 |
---|---|---|
committer | Linus Torvalds <torvalds@linux-foundation.org> | 2012-01-08 12:19:57 -0800 |
commit | 972b2c719990f91eb3b2310d44ef8a2d38955a14 (patch) | |
tree | b25a250ec5bec4b7b6355d214642d8b57c5cab32 /block/partitions/ultrix.c | |
parent | 02550d61f49266930e674286379d3601006b2893 (diff) | |
parent | c3aa077648e147783a7a53b409578234647db853 (diff) |
Merge branch 'for-linus2' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
* 'for-linus2' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: (165 commits)
reiserfs: Properly display mount options in /proc/mounts
vfs: prevent remount read-only if pending removes
vfs: count unlinked inodes
vfs: protect remounting superblock read-only
vfs: keep list of mounts for each superblock
vfs: switch ->show_options() to struct dentry *
vfs: switch ->show_path() to struct dentry *
vfs: switch ->show_devname() to struct dentry *
vfs: switch ->show_stats to struct dentry *
switch security_path_chmod() to struct path *
vfs: prefer ->dentry->d_sb to ->mnt->mnt_sb
vfs: trim includes a bit
switch mnt_namespace ->root to struct mount
vfs: take /proc/*/mounts and friends to fs/proc_namespace.c
vfs: opencode mntget() mnt_set_mountpoint()
vfs: spread struct mount - remaining argument of next_mnt()
vfs: move fsnotify junk to struct mount
vfs: move mnt_devname
vfs: move mnt_list to struct mount
vfs: switch pnode.h macros to struct mount *
...
Diffstat (limited to 'block/partitions/ultrix.c')
-rw-r--r-- | block/partitions/ultrix.c | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/block/partitions/ultrix.c b/block/partitions/ultrix.c new file mode 100644 index 00000000000..8dbaf9f77a9 --- /dev/null +++ b/block/partitions/ultrix.c @@ -0,0 +1,48 @@ +/* + * fs/partitions/ultrix.c + * + * Code extracted from drivers/block/genhd.c + * + * Re-organised Jul 1999 Russell King + */ + +#include "check.h" +#include "ultrix.h" + +int ultrix_partition(struct parsed_partitions *state) +{ + int i; + Sector sect; + unsigned char *data; + struct ultrix_disklabel { + s32 pt_magic; /* magic no. indicating part. info exits */ + s32 pt_valid; /* set by driver if pt is current */ + struct pt_info { + s32 pi_nblocks; /* no. of sectors */ + u32 pi_blkoff; /* block offset for start */ + } pt_part[8]; + } *label; + +#define PT_MAGIC 0x032957 /* Partition magic number */ +#define PT_VALID 1 /* Indicates if struct is valid */ + + data = read_part_sector(state, (16384 - sizeof(*label))/512, §); + if (!data) + return -1; + + label = (struct ultrix_disklabel *)(data + 512 - sizeof(*label)); + + if (label->pt_magic == PT_MAGIC && label->pt_valid == PT_VALID) { + for (i=0; i<8; i++) + if (label->pt_part[i].pi_nblocks) + put_partition(state, i+1, + label->pt_part[i].pi_blkoff, + label->pt_part[i].pi_nblocks); + put_dev_sector(sect); + strlcat(state->pp_buf, "\n", PAGE_SIZE); + return 1; + } else { + put_dev_sector(sect); + return 0; + } +} |