diff options
Diffstat (limited to 'fs/partitions')
| -rw-r--r-- | fs/partitions/Kconfig | 2 | ||||
| -rw-r--r-- | fs/partitions/Makefile | 1 | ||||
| -rw-r--r-- | fs/partitions/acorn.c | 1 | ||||
| -rw-r--r-- | fs/partitions/check.c | 33 | ||||
| -rw-r--r-- | fs/partitions/devfs.c | 130 | ||||
| -rw-r--r-- | fs/partitions/devfs.h | 10 | ||||
| -rw-r--r-- | fs/partitions/efi.c | 10 | ||||
| -rw-r--r-- | fs/partitions/efi.h | 1 | ||||
| -rw-r--r-- | fs/partitions/ibm.c | 1 | ||||
| -rw-r--r-- | fs/partitions/mac.c | 1 | ||||
| -rw-r--r-- | fs/partitions/msdos.c | 32 | ||||
| -rw-r--r-- | fs/partitions/sun.c | 2 |
12 files changed, 42 insertions, 182 deletions
diff --git a/fs/partitions/Kconfig b/fs/partitions/Kconfig index c9a478099281..e478f1941831 100644 --- a/fs/partitions/Kconfig +++ b/fs/partitions/Kconfig @@ -99,7 +99,7 @@ config IBM_PARTITION config MAC_PARTITION bool "Macintosh partition map support" if PARTITION_ADVANCED - default y if MAC + default y if (MAC || PPC_PMAC) help Say Y here if you would like to use hard disks under Linux which were partitioned on a Macintosh. diff --git a/fs/partitions/Makefile b/fs/partitions/Makefile index 42c7d3878ed0..d713ce6b3e12 100644 --- a/fs/partitions/Makefile +++ b/fs/partitions/Makefile @@ -4,7 +4,6 @@ obj-y := check.o -obj-$(CONFIG_DEVFS_FS) += devfs.o obj-$(CONFIG_ACORN_PARTITION) += acorn.o obj-$(CONFIG_AMIGA_PARTITION) += amiga.o obj-$(CONFIG_ATARI_PARTITION) += atari.o diff --git a/fs/partitions/acorn.c b/fs/partitions/acorn.c index c05085710fce..1bc9f372c7d4 100644 --- a/fs/partitions/acorn.c +++ b/fs/partitions/acorn.c @@ -12,7 +12,6 @@ * every single manufacturer of SCSI and IDE cards created their own * method. */ -#include <linux/config.h> #include <linux/buffer_head.h> #include <linux/adfs_fs.h> diff --git a/fs/partitions/check.c b/fs/partitions/check.c index 2ef313a96b66..51c6a748df49 100644 --- a/fs/partitions/check.c +++ b/fs/partitions/check.c @@ -18,10 +18,8 @@ #include <linux/fs.h> #include <linux/kmod.h> #include <linux/ctype.h> -#include <linux/devfs_fs_kernel.h> #include "check.h" -#include "devfs.h" #include "acorn.h" #include "amiga.h" @@ -161,18 +159,11 @@ check_partition(struct gendisk *hd, struct block_device *bdev) if (!state) return NULL; -#ifdef CONFIG_DEVFS_FS - if (hd->devfs_name[0] != '\0') { - printk(KERN_INFO " /dev/%s:", hd->devfs_name); + disk_name(hd, 0, state->name); + printk(KERN_INFO " %s:", state->name); + if (isdigit(state->name[strlen(state->name)-1])) sprintf(state->name, "p"); - } -#endif - else { - disk_name(hd, 0, state->name); - printk(KERN_INFO " %s:", state->name); - if (isdigit(state->name[strlen(state->name)-1])) - sprintf(state->name, "p"); - } + state->limit = hd->minors; i = res = 0; while (!res && check_part[i]) { @@ -328,7 +319,6 @@ void delete_partition(struct gendisk *disk, int part) p->nr_sects = 0; p->ios[0] = p->ios[1] = 0; p->sectors[0] = p->sectors[1] = 0; - devfs_remove("%s/part%d", disk->devfs_name, part); sysfs_remove_link(&p->kobj, "subsystem"); if (p->holder_dir) kobject_unregister(p->holder_dir); @@ -349,10 +339,7 @@ void add_partition(struct gendisk *disk, int part, sector_t start, sector_t len) p->start_sect = start; p->nr_sects = len; p->partno = part; - - devfs_mk_bdev(MKDEV(disk->major, disk->first_minor + part), - S_IFBLK|S_IRUSR|S_IWUSR, - "%s/part%d", disk->devfs_name, part); + p->policy = disk->policy; if (isdigit(disk->kobj.name[strlen(disk->kobj.name)-1])) snprintf(p->kobj.name,KOBJ_NAME_LEN,"%sp%d",disk->kobj.name,part); @@ -423,14 +410,8 @@ void register_disk(struct gendisk *disk) disk_sysfs_add_subdirs(disk); /* No minors to use for partitions */ - if (disk->minors == 1) { - if (disk->devfs_name[0] != '\0') - devfs_add_disk(disk); + if (disk->minors == 1) goto exit; - } - - /* always add handle for the whole disk */ - devfs_add_partitioned(disk); /* No such device (e.g., media were just removed) */ if (!get_capacity(disk)) @@ -538,8 +519,6 @@ void del_gendisk(struct gendisk *disk) disk_stat_set_all(disk, 0); disk->stamp = 0; - devfs_remove_disk(disk); - kobject_uevent(&disk->kobj, KOBJ_REMOVE); if (disk->holder_dir) kobject_unregister(disk->holder_dir); diff --git a/fs/partitions/devfs.c b/fs/partitions/devfs.c deleted file mode 100644 index 3f0a780c9cec..000000000000 --- a/fs/partitions/devfs.c +++ /dev/null @@ -1,130 +0,0 @@ -/* - * This tries to keep block devices away from devfs as much as possible. - */ -#include <linux/fs.h> -#include <linux/devfs_fs_kernel.h> -#include <linux/vmalloc.h> -#include <linux/genhd.h> -#include <linux/bitops.h> -#include <linux/mutex.h> - - -struct unique_numspace { - u32 num_free; /* Num free in bits */ - u32 length; /* Array length in bytes */ - unsigned long *bits; - struct semaphore mutex; -}; - -static DEFINE_MUTEX(numspace_mutex); - -static int expand_numspace(struct unique_numspace *s) -{ - u32 length; - void *bits; - - if (s->length < 16) - length = 16; - else - length = s->length << 1; - - bits = vmalloc(length); - if (!bits) - return -ENOMEM; - if (s->bits) { - memcpy(bits, s->bits, s->length); - vfree(s->bits); - } - - s->num_free = (length - s->length) << 3; - s->bits = bits; - memset(bits + s->length, 0, length - s->length); - s->length = length; - - return 0; -} - -static int alloc_unique_number(struct unique_numspace *s) -{ - int rval = 0; - - mutex_lock(&numspace_mutex); - if (s->num_free < 1) - rval = expand_numspace(s); - if (!rval) { - rval = find_first_zero_bit(s->bits, s->length << 3); - --s->num_free; - __set_bit(rval, s->bits); - } - mutex_unlock(&numspace_mutex); - - return rval; -} - -static void dealloc_unique_number(struct unique_numspace *s, int number) -{ - int old_val; - - if (number >= 0) { - mutex_lock(&numspace_mutex); - old_val = __test_and_clear_bit(number, s->bits); - if (old_val) - ++s->num_free; - mutex_unlock(&numspace_mutex); - } -} - -static struct unique_numspace disc_numspace; -static struct unique_numspace cdrom_numspace; - -void devfs_add_partitioned(struct gendisk *disk) -{ - char dirname[64], symlink[16]; - - devfs_mk_dir(disk->devfs_name); - devfs_mk_bdev(MKDEV(disk->major, disk->first_minor), - S_IFBLK|S_IRUSR|S_IWUSR, - "%s/disc", disk->devfs_name); - - disk->number = alloc_unique_number(&disc_numspace); - - sprintf(symlink, "discs/disc%d", disk->number); - sprintf(dirname, "../%s", disk->devfs_name); - devfs_mk_symlink(symlink, dirname); - -} - -void devfs_add_disk(struct gendisk *disk) -{ - devfs_mk_bdev(MKDEV(disk->major, disk->first_minor), - (disk->flags & GENHD_FL_CD) ? - S_IFBLK|S_IRUGO|S_IWUGO : - S_IFBLK|S_IRUSR|S_IWUSR, - "%s", disk->devfs_name); - - if (disk->flags & GENHD_FL_CD) { - char dirname[64], symlink[16]; - - disk->number = alloc_unique_number(&cdrom_numspace); - - sprintf(symlink, "cdroms/cdrom%d", disk->number); - sprintf(dirname, "../%s", disk->devfs_name); - devfs_mk_symlink(symlink, dirname); - } -} - -void devfs_remove_disk(struct gendisk *disk) -{ - if (disk->minors != 1) { - devfs_remove("discs/disc%d", disk->number); - dealloc_unique_number(&disc_numspace, disk->number); - devfs_remove("%s/disc", disk->devfs_name); - } - if (disk->flags & GENHD_FL_CD) { - devfs_remove("cdroms/cdrom%d", disk->number); - dealloc_unique_number(&cdrom_numspace, disk->number); - } - devfs_remove(disk->devfs_name); -} - - diff --git a/fs/partitions/devfs.h b/fs/partitions/devfs.h deleted file mode 100644 index 176118b4e492..000000000000 --- a/fs/partitions/devfs.h +++ /dev/null @@ -1,10 +0,0 @@ - -#ifdef CONFIG_DEVFS_FS -void devfs_add_disk(struct gendisk *dev); -void devfs_add_partitioned(struct gendisk *dev); -void devfs_remove_disk(struct gendisk *dev); -#else -# define devfs_add_disk(disk) do { } while (0) -# define devfs_add_partitioned(disk) do { } while (0) -# define devfs_remove_disk(disk) do { } while (0) -#endif diff --git a/fs/partitions/efi.c b/fs/partitions/efi.c index 0f5b017aebad..1bea610078b3 100644 --- a/fs/partitions/efi.c +++ b/fs/partitions/efi.c @@ -91,7 +91,6 @@ * - Code works, detects all the partitions. * ************************************************************/ -#include <linux/config.h> #include <linux/crc32.h> #include "check.h" #include "efi.h" @@ -239,10 +238,9 @@ alloc_read_gpt_entries(struct block_device *bdev, gpt_header *gpt) le32_to_cpu(gpt->sizeof_partition_entry); if (!count) return NULL; - pte = kmalloc(count, GFP_KERNEL); + pte = kzalloc(count, GFP_KERNEL); if (!pte) return NULL; - memset(pte, 0, count); if (read_lba(bdev, le64_to_cpu(gpt->partition_entry_lba), (u8 *) pte, @@ -270,10 +268,9 @@ alloc_read_gpt_header(struct block_device *bdev, u64 lba) if (!bdev) return NULL; - gpt = kmalloc(sizeof (gpt_header), GFP_KERNEL); + gpt = kzalloc(sizeof (gpt_header), GFP_KERNEL); if (!gpt) return NULL; - memset(gpt, 0, sizeof (gpt_header)); if (read_lba(bdev, lba, (u8 *) gpt, sizeof (gpt_header)) < sizeof (gpt_header)) { @@ -527,9 +524,8 @@ find_valid_gpt(struct block_device *bdev, gpt_header **gpt, gpt_entry **ptes) lastlba = last_lba(bdev); if (!force_gpt) { /* This will be added to the EFI Spec. per Intel after v1.02. */ - legacymbr = kmalloc(sizeof (*legacymbr), GFP_KERNEL); + legacymbr = kzalloc(sizeof (*legacymbr), GFP_KERNEL); if (legacymbr) { - memset(legacymbr, 0, sizeof (*legacymbr)); read_lba(bdev, 0, (u8 *) legacymbr, sizeof (*legacymbr)); good_pmbr = is_pmbr_valid(legacymbr, lastlba); diff --git a/fs/partitions/efi.h b/fs/partitions/efi.h index c44fb0561448..2cc89d0475bf 100644 --- a/fs/partitions/efi.h +++ b/fs/partitions/efi.h @@ -26,7 +26,6 @@ #define FS_PART_EFI_H_INCLUDED #include <linux/types.h> -#include <linux/config.h> #include <linux/fs.h> #include <linux/genhd.h> #include <linux/kernel.h> diff --git a/fs/partitions/ibm.c b/fs/partitions/ibm.c index 830c55d86ab1..d352a7381fed 100644 --- a/fs/partitions/ibm.c +++ b/fs/partitions/ibm.c @@ -6,7 +6,6 @@ * (C) IBM Corporation, IBM Deutschland Entwicklung GmbH, 1999,2000 */ -#include <linux/config.h> #include <linux/buffer_head.h> #include <linux/hdreg.h> #include <linux/slab.h> diff --git a/fs/partitions/mac.c b/fs/partitions/mac.c index 813292f21210..c0871002d00d 100644 --- a/fs/partitions/mac.c +++ b/fs/partitions/mac.c @@ -6,7 +6,6 @@ * Re-organised Feb 1998 Russell King */ -#include <linux/config.h> #include <linux/ctype.h> #include "check.h" #include "mac.h" diff --git a/fs/partitions/msdos.c b/fs/partitions/msdos.c index 9935d254186e..4f8df71e49d3 100644 --- a/fs/partitions/msdos.c +++ b/fs/partitions/msdos.c @@ -19,7 +19,6 @@ * Re-organised Feb 1998 Russell King */ -#include <linux/config.h> #include "check.h" #include "msdos.h" @@ -59,6 +58,31 @@ msdos_magic_present(unsigned char *p) return (p[0] == MSDOS_LABEL_MAGIC1 && p[1] == MSDOS_LABEL_MAGIC2); } +/* Value is EBCDIC 'IBMA' */ +#define AIX_LABEL_MAGIC1 0xC9 +#define AIX_LABEL_MAGIC2 0xC2 +#define AIX_LABEL_MAGIC3 0xD4 +#define AIX_LABEL_MAGIC4 0xC1 +static int aix_magic_present(unsigned char *p, struct block_device *bdev) +{ + Sector sect; + unsigned char *d; + int ret = 0; + + if (p[0] != AIX_LABEL_MAGIC1 && + p[1] != AIX_LABEL_MAGIC2 && + p[2] != AIX_LABEL_MAGIC3 && + p[3] != AIX_LABEL_MAGIC4) + return 0; + d = read_dev_sector(bdev, 7, §); + if (d) { + if (d[0] == '_' && d[1] == 'L' && d[2] == 'V' && d[3] == 'M') + ret = 1; + put_dev_sector(sect); + }; + return ret; +} + /* * Create devices for each logical partition in an extended partition. * The logical partitions form a linked list, with each entry being @@ -394,6 +418,12 @@ int msdos_partition(struct parsed_partitions *state, struct block_device *bdev) return 0; } + if (aix_magic_present(data, bdev)) { + put_dev_sector(sect); + printk( " [AIX]"); + return 0; + } + /* * Now that the 55aa signature is present, this is probably * either the boot sector of a FAT filesystem or a DOS-type diff --git a/fs/partitions/sun.c b/fs/partitions/sun.c index abe91ca03edf..0a5927c806ca 100644 --- a/fs/partitions/sun.c +++ b/fs/partitions/sun.c @@ -74,7 +74,7 @@ int sun_partition(struct parsed_partitions *state, struct block_device *bdev) spc = be16_to_cpu(label->ntrks) * be16_to_cpu(label->nsect); for (i = 0; i < 8; i++, p++) { unsigned long st_sector; - int num_sectors; + unsigned int num_sectors; st_sector = be32_to_cpu(p->start_cylinder) * spc; num_sectors = be32_to_cpu(p->num_sectors); |
