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merge mainline into lazy

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This commit is contained in:
Vladimir 'phcoder' Serbinenko 2011-07-07 12:21:53 +02:00
commit 00542307eb
326 changed files with 18667 additions and 4092 deletions
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66
grub-core/kern/emu/hostdisk.c
View file

@ -43,6 +43,7 @@
#ifdef __linux__
# include <sys/ioctl.h> /* ioctl */
# include <sys/mount.h>
# if !defined(__GLIBC__) || \
((__GLIBC__ < 2) || ((__GLIBC__ == 2) && (__GLIBC_MINOR__ < 1)))
/* Maybe libc doesn't have large file support. */
@ -269,6 +270,7 @@ grub_util_biosdisk_open (const char *name, grub_disk_t disk,
# else
unsigned long long nr;
# endif
int sector_size;
int fd;
fd = open (map[drive].device, O_RDONLY);
@ -301,16 +303,28 @@ grub_util_biosdisk_open (const char *name, grub_disk_t disk,
goto fail;
}
if (ioctl (fd, BLKSSZGET, &sector_size))
{
close (fd);
goto fail;
}
close (fd);
if (sector_size & (sector_size - 1) || !sector_size)
goto fail;
for (disk->log_sector_size = 0;
(1 << disk->log_sector_size) < sector_size;
disk->log_sector_size++);
# if defined (__APPLE__)
disk->total_sectors = nr;
# elif defined(__NetBSD__)
disk->total_sectors = label.d_secperunit;
# else
disk->total_sectors = nr / 512;
disk->total_sectors = nr >> disk->log_sector_size;
if (nr % 512)
if (nr & ((1 << disk->log_sector_size) - 1))
grub_util_error ("unaligned device size");
# endif
@ -327,7 +341,7 @@ grub_util_biosdisk_open (const char *name, grub_disk_t disk,
if (stat (map[drive].device, &st) < 0)
return grub_error (GRUB_ERR_UNKNOWN_DEVICE, "cannot stat `%s'", map[drive].device);
disk->total_sectors = st.st_size >> GRUB_DISK_SECTOR_BITS;
disk->total_sectors = st.st_size >> disk->log_sector_size;
grub_util_info ("the size of %s is %lu", name, disk->total_sectors);
@ -558,7 +572,7 @@ struct linux_partition_cache
struct linux_partition_cache *linux_partition_cache_list;
static int
linux_find_partition (char *dev, unsigned long sector)
linux_find_partition (char *dev, grub_disk_addr_t sector)
{
size_t len = strlen (dev);
const char *format;
@ -566,6 +580,7 @@ linux_find_partition (char *dev, unsigned long sector)
int i;
char real_dev[PATH_MAX];
struct linux_partition_cache *cache;
int missing = 0;
strcpy(real_dev, dev);
@ -574,6 +589,12 @@ linux_find_partition (char *dev, unsigned long sector)
p = real_dev + len - 4;
format = "part%d";
}
else if (strncmp (real_dev, "/dev/disk/by-id/",
sizeof ("/dev/disk/by-id/") - 1) == 0)
{
p = real_dev + len;
format = "-part%d";
}
else if (real_dev[len - 1] >= '0' && real_dev[len - 1] <= '9')
{
p = real_dev + len;
@ -604,7 +625,13 @@ linux_find_partition (char *dev, unsigned long sector)
fd = open (real_dev, O_RDONLY);
if (fd == -1)
return 0;
{
if (missing++ < 10)
continue;
else
return 0;
}
missing = 0;
close (fd);
start = find_partition_start (real_dev);
@ -686,6 +713,7 @@ open_device (const grub_disk_t disk, grub_disk_addr_t sector, int flags)
}
close (data->fd);
data->fd = -1;
}
/* Open the partition. */
@ -744,6 +772,7 @@ open_device (const grub_disk_t disk, grub_disk_addr_t sector, int flags)
#endif
}
close (data->fd);
data->fd = -1;
}
fd = open (map[disk->id].device, flags);
@ -791,7 +820,7 @@ open_device (const grub_disk_t disk, grub_disk_addr_t sector, int flags)
_syscall5 (int, _llseek, uint, filedes, ulong, hi, ulong, lo,
loff_t *, res, uint, wh);
offset = (loff_t) sector << GRUB_DISK_SECTOR_BITS;
offset = (loff_t) sector << disk->log_sector_size;
if (_llseek (fd, offset >> 32, offset & 0xffffffff, &result, SEEK_SET))
{
grub_error (GRUB_ERR_BAD_DEVICE, "cannot seek `%s'", map[disk->id].device);
@ -801,7 +830,7 @@ open_device (const grub_disk_t disk, grub_disk_addr_t sector, int flags)
}
#else
{
off_t offset = (off_t) sector << GRUB_DISK_SECTOR_BITS;
off_t offset = (off_t) sector << disk->log_sector_size;
if (lseek (fd, offset, SEEK_SET) != offset)
{
@ -901,19 +930,20 @@ grub_util_biosdisk_read (grub_disk_t disk, grub_disk_addr_t sector,
sectors that are read together with the MBR in one read. It
should only remap the MBR, so we split the read in two
parts. -jochen */
if (nread (fd, buf, GRUB_DISK_SECTOR_SIZE) != GRUB_DISK_SECTOR_SIZE)
if (nread (fd, buf, (1 << disk->log_sector_size))
!= (1 << disk->log_sector_size))
{
grub_error (GRUB_ERR_READ_ERROR, "cannot read `%s'", map[disk->id].device);
return grub_errno;
}
buf += GRUB_DISK_SECTOR_SIZE;
buf += (1 << disk->log_sector_size);
size--;
}
#endif /* __linux__ */
if (nread (fd, buf, size << GRUB_DISK_SECTOR_BITS)
!= (ssize_t) (size << GRUB_DISK_SECTOR_BITS))
if (nread (fd, buf, size << disk->log_sector_size)
!= (ssize_t) (size << disk->log_sector_size))
grub_error (GRUB_ERR_READ_ERROR, "cannot read from `%s'", map[disk->id].device);
return grub_errno;
@ -946,8 +976,8 @@ grub_util_biosdisk_write (grub_disk_t disk, grub_disk_addr_t sector,
if (fd < 0)
return grub_errno;
if (nwrite (fd, buf, size << GRUB_DISK_SECTOR_BITS)
!= (ssize_t) (size << GRUB_DISK_SECTOR_BITS))
if (nwrite (fd, buf, size << disk->log_sector_size)
!= (ssize_t) (size << disk->log_sector_size))
grub_error (GRUB_ERR_WRITE_ERROR, "cannot write to `%s'", map[disk->id].device);
return grub_errno;
@ -1408,7 +1438,8 @@ convert_system_partition_to_system_disk (const char *os_dev, struct stat *st)
if (tree)
dm_tree_free (tree);
free (path);
char *ret = grub_find_device (NULL, (major << 8) | minor);
char *ret = grub_find_device ("/dev/mapper",
(major << 8) | minor);
return ret;
}
@ -1837,7 +1868,12 @@ grub_util_biosdisk_is_floppy (grub_disk_t disk)
/* Shouldn't happen either. */
if (fstat (fd, &st) < 0)
return 0;
{
close (fd);
return 0;
}
close (fd);
#if defined(__NetBSD__)
if (major(st.st_rdev) == RAW_FLOPPY_MAJOR)