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Add minix3 to util filesystems

This commit is contained in:
Vladimir 'phcoder' Serbinenko 2011-04-11 14:09:02 +02:00
parent 65f01628e1
commit 8fc88523dd
2 changed files with 16 additions and 21 deletions
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1
Makefile.util.def
View File

@ -60,6 +60,7 @@ library = {
common = grub-core/fs/jfs.c;
common = grub-core/fs/minix.c;
common = grub-core/fs/minix2.c;
common = grub-core/fs/minix3.c;
common = grub-core/fs/nilfs2.c;
common = grub-core/fs/ntfs.c;
common = grub-core/fs/ntfscomp.c;

36
grub-core/fs/minix.c
View File

@ -70,10 +70,19 @@ typedef grub_uint16_t grub_minix_ino_t;
#define GRUB_MINIX_INODE_DINDIR_ZONE(data) (grub_minix_le_to_cpu_n \
(data->inode.double_indir_zone))
#ifndef MODE_MINIX3
#define GRUB_MINIX_LOG2_ZONESZ (GRUB_MINIX_LOG2_BSIZE \
+ grub_le_to_cpu16 (sblock->log2_zone_size))
+ grub_le_to_cpu16 (data->sblock.log2_zone_size))
#endif
#define GRUB_MINIX_ZONESZ (data->block_size \
<< grub_le_to_cpu16 (sblock->log2_zone_size))
<< grub_le_to_cpu16 (data->sblock.log2_zone_size))
#ifdef MODE_MINIX3
#define GRUB_MINIX_ZONE2SECT(zone) ((zone) * (data->block_size / GRUB_DISK_SECTOR_SIZE))
#else
#define GRUB_MINIX_ZONE2SECT(zone) ((zone) << GRUB_MINIX_LOG2_ZONESZ)
#endif
#ifdef MODE_MINIX3
struct grub_minix_sblock
@ -160,7 +169,6 @@ static grub_err_t grub_minix_find_file (struct grub_minix_data *data,
static int
grub_minix_get_file_block (struct grub_minix_data *data, unsigned int blk)
{
struct grub_minix_sblock *sblock = &data->sblock;
int indir;
auto int grub_get_indir (int, int);
@ -170,11 +178,7 @@ grub_minix_get_file_block (struct grub_minix_data *data, unsigned int blk)
{
grub_minix_uintn_t indirn;
grub_disk_read (data->disk,
#ifdef MODE_MINIX3
zone * (data->block_size / GRUB_DISK_SECTOR_SIZE),
#else
zone << GRUB_MINIX_LOG2_ZONESZ,
#endif
GRUB_MINIX_ZONE2SECT(zone),
sizeof (grub_minix_uintn_t) * num,
sizeof (grub_minix_uintn_t), (char *) &indirn);
return grub_minix_le_to_cpu_n (indirn);
@ -220,7 +224,6 @@ grub_minix_read_file (struct grub_minix_data *data,
unsigned offset, unsigned length),
grub_off_t pos, grub_disk_addr_t len, char *buf)
{
struct grub_minix_sblock *sblock = &data->sblock;
grub_disk_addr_t i;
grub_disk_addr_t blockcnt;
grub_uint64_t posblock;
@ -262,11 +265,7 @@ grub_minix_read_file (struct grub_minix_data *data,
data->disk->read_hook = read_hook;
grub_disk_read (data->disk,
#ifdef MODE_MINIX3
blknr * (sblock->block_size / GRUB_DISK_SECTOR_SIZE),
#else
blknr << GRUB_MINIX_LOG2_ZONESZ,
#endif
GRUB_MINIX_ZONE2SECT(blknr),
skipfirst, blockend, buf);
data->disk->read_hook = 0;
if (grub_errno)
@ -292,13 +291,8 @@ grub_minix_read_inode (struct grub_minix_data *data, int ino)
/* The first inode in minix is inode 1. */
ino--;
block = (2 + grub_le_to_cpu16 (sblock->inode_bmap_size)
+ grub_le_to_cpu16 (sblock->zone_bmap_size));
#ifndef MODE_MINIX3
block <<= GRUB_MINIX_LOG2_BSIZE;
#else
block *= sblock->block_size / GRUB_DISK_SECTOR_SIZE;
#endif
block = GRUB_MINIX_ZONE2SECT (2 + grub_le_to_cpu16 (sblock->inode_bmap_size)
+ grub_le_to_cpu16 (sblock->zone_bmap_size));
block += ino / (GRUB_DISK_SECTOR_SIZE / sizeof (struct grub_minix_inode));
int offs = (ino % (GRUB_DISK_SECTOR_SIZE
/ sizeof (struct grub_minix_inode))