#include <linux/vfs.h>
#include <linux/vmalloc.h>
#include <linux/errno.h>
+#include <linux/mount.h>
+#include <linux/seq_file.h>
+#include <linux/bitmap.h>
#include <asm/byteorder.h>
-#include <linux/udf_fs.h>
#include "udf_sb.h"
#include "udf_i.h"
#define VDS_POS_TERMINATING_DESC 6
#define VDS_POS_LENGTH 7
+#define UDF_DEFAULT_BLOCKSIZE 2048
+
static char error_buf[1024];
/* These are the "meat" - everything else is stuffing */
static void udf_close_lvid(struct super_block *);
static unsigned int udf_count_free(struct super_block *);
static int udf_statfs(struct dentry *, struct kstatfs *);
+static int udf_show_options(struct seq_file *, struct vfsmount *);
+static void udf_error(struct super_block *sb, const char *function,
+ const char *fmt, ...);
struct logicalVolIntegrityDescImpUse *udf_sb_lvidiu(struct udf_sb_info *sbi)
{
- struct logicalVolIntegrityDesc *lvid = (struct logicalVolIntegrityDesc *)sbi->s_lvid_bh->b_data;
+ struct logicalVolIntegrityDesc *lvid =
+ (struct logicalVolIntegrityDesc *)sbi->s_lvid_bh->b_data;
__u32 number_of_partitions = le32_to_cpu(lvid->numOfPartitions);
- __u32 offset = number_of_partitions * 2 * sizeof(uint32_t)/sizeof(uint8_t);
+ __u32 offset = number_of_partitions * 2 *
+ sizeof(uint32_t)/sizeof(uint8_t);
return (struct logicalVolIntegrityDescImpUse *)&(lvid->impUse[offset]);
}
.write_super = udf_write_super,
.statfs = udf_statfs,
.remount_fs = udf_remount_fs,
+ .show_options = udf_show_options,
};
struct udf_options {
return 0;
}
+static int udf_show_options(struct seq_file *seq, struct vfsmount *mnt)
+{
+ struct super_block *sb = mnt->mnt_sb;
+ struct udf_sb_info *sbi = UDF_SB(sb);
+
+ if (!UDF_QUERY_FLAG(sb, UDF_FLAG_STRICT))
+ seq_puts(seq, ",nostrict");
+ if (sb->s_blocksize != UDF_DEFAULT_BLOCKSIZE)
+ seq_printf(seq, ",bs=%lu", sb->s_blocksize);
+ if (UDF_QUERY_FLAG(sb, UDF_FLAG_UNHIDE))
+ seq_puts(seq, ",unhide");
+ if (UDF_QUERY_FLAG(sb, UDF_FLAG_UNDELETE))
+ seq_puts(seq, ",undelete");
+ if (!UDF_QUERY_FLAG(sb, UDF_FLAG_USE_AD_IN_ICB))
+ seq_puts(seq, ",noadinicb");
+ if (UDF_QUERY_FLAG(sb, UDF_FLAG_USE_SHORT_AD))
+ seq_puts(seq, ",shortad");
+ if (UDF_QUERY_FLAG(sb, UDF_FLAG_UID_FORGET))
+ seq_puts(seq, ",uid=forget");
+ if (UDF_QUERY_FLAG(sb, UDF_FLAG_UID_IGNORE))
+ seq_puts(seq, ",uid=ignore");
+ if (UDF_QUERY_FLAG(sb, UDF_FLAG_GID_FORGET))
+ seq_puts(seq, ",gid=forget");
+ if (UDF_QUERY_FLAG(sb, UDF_FLAG_GID_IGNORE))
+ seq_puts(seq, ",gid=ignore");
+ if (UDF_QUERY_FLAG(sb, UDF_FLAG_UID_SET))
+ seq_printf(seq, ",uid=%u", sbi->s_uid);
+ if (UDF_QUERY_FLAG(sb, UDF_FLAG_GID_SET))
+ seq_printf(seq, ",gid=%u", sbi->s_gid);
+ if (sbi->s_umask != 0)
+ seq_printf(seq, ",umask=%o", sbi->s_umask);
+ if (UDF_QUERY_FLAG(sb, UDF_FLAG_SESSION_SET))
+ seq_printf(seq, ",session=%u", sbi->s_session);
+ if (UDF_QUERY_FLAG(sb, UDF_FLAG_LASTBLOCK_SET))
+ seq_printf(seq, ",lastblock=%u", sbi->s_last_block);
+ /*
+ * s_anchor[2] could be zeroed out in case there is no anchor
+ * in the specified block, but then the "anchor=N" option
+ * originally given by the user wasn't effective, so it's OK
+ * if we don't show it.
+ */
+ if (sbi->s_anchor[2] != 0)
+ seq_printf(seq, ",anchor=%u", sbi->s_anchor[2]);
+ /*
+ * volume, partition, fileset and rootdir seem to be ignored
+ * currently
+ */
+ if (UDF_QUERY_FLAG(sb, UDF_FLAG_UTF8))
+ seq_puts(seq, ",utf8");
+ if (UDF_QUERY_FLAG(sb, UDF_FLAG_NLS_MAP) && sbi->s_nls_map)
+ seq_printf(seq, ",iocharset=%s", sbi->s_nls_map->charset);
+
+ return 0;
+}
+
/*
* udf_parse_options
*
{Opt_err, NULL}
};
-static int udf_parse_options(char *options, struct udf_options *uopt)
+static int udf_parse_options(char *options, struct udf_options *uopt,
+ bool remount)
{
char *p;
int option;
uopt->novrs = 0;
- uopt->blocksize = 2048;
+ uopt->blocksize = UDF_DEFAULT_BLOCKSIZE;
uopt->partition = 0xFFFF;
uopt->session = 0xFFFFFFFF;
uopt->lastblock = 0;
if (match_int(args, &option))
return 0;
uopt->session = option;
+ if (!remount)
+ uopt->flags |= (1 << UDF_FLAG_SESSION_SET);
break;
case Opt_lastblock:
if (match_int(args, &option))
return 0;
uopt->lastblock = option;
+ if (!remount)
+ uopt->flags |= (1 << UDF_FLAG_LASTBLOCK_SET);
break;
case Opt_anchor:
if (match_int(args, &option))
uopt.gid = sbi->s_gid;
uopt.umask = sbi->s_umask;
- if (!udf_parse_options(options, &uopt))
+ if (!udf_parse_options(options, &uopt, true))
return -EINVAL;
sbi->s_flags = uopt.flags;
return 0;
}
-/*
- * udf_set_blocksize
- *
- * PURPOSE
- * Set the block size to be used in all transfers.
- *
- * DESCRIPTION
- * To allow room for a DMA transfer, it is best to guess big when unsure.
- * This routine picks 2048 bytes as the blocksize when guessing. This
- * should be adequate until devices with larger block sizes become common.
- *
- * Note that the Linux kernel can currently only deal with blocksizes of
- * 512, 1024, 2048, 4096, and 8192 bytes.
- *
- * PRE-CONDITIONS
- * sb Pointer to _locked_ superblock.
- *
- * POST-CONDITIONS
- * sb->s_blocksize Blocksize.
- * sb->s_blocksize_bits log2 of blocksize.
- * <return> 0 Blocksize is valid.
- * <return> 1 Blocksize is invalid.
- *
- * HISTORY
- * July 1, 1997 - Andrew E. Mileski
- * Written, tested, and released.
- */
-static int udf_set_blocksize(struct super_block *sb, int bsize)
-{
- if (!sb_min_blocksize(sb, bsize)) {
- udf_debug("Bad block size (%d)\n", bsize);
- printk(KERN_ERR "udf: bad block size (%d)\n", bsize);
- return 0;
- }
-
- return sb->s_blocksize;
-}
-
static int udf_vrs(struct super_block *sb, int silent)
{
struct volStructDesc *vsd = NULL;
lastblock = last[i] - sbi->s_session;
sbi->s_anchor[0] = lastblock;
sbi->s_anchor[1] = lastblock - 256;
- } else if (location == udf_variable_to_fixed(last[i]) - sbi->s_session) {
+ } else if (location ==
+ udf_variable_to_fixed(last[i]) -
+ sbi->s_session) {
UDF_SET_FLAG(sb, UDF_FLAG_VARCONV);
- lastblock = udf_variable_to_fixed(last[i]) - sbi->s_session;
+ lastblock =
+ udf_variable_to_fixed(last[i]) -
+ sbi->s_session;
sbi->s_anchor[0] = lastblock;
- sbi->s_anchor[1] = lastblock - 256 - sbi->s_session;
+ sbi->s_anchor[1] = lastblock - 256 -
+ sbi->s_session;
} else {
- udf_debug("Anchor found at block %d, location mismatch %d.\n",
+ udf_debug("Anchor found at block %d, "
+ "location mismatch %d.\n",
last[i], location);
}
- } else if (ident == TAG_IDENT_FE || ident == TAG_IDENT_EFE) {
+ } else if (ident == TAG_IDENT_FE ||
+ ident == TAG_IDENT_EFE) {
lastblock = last[i];
sbi->s_anchor[3] = 512;
} else {
bh = sb_bread(sb, last[i] - 256);
if (bh) {
tag *t = (tag *)bh->b_data;
- ident = le16_to_cpu(t->tagIdent);
- location = le32_to_cpu(t->tagLocation);
+ ident = le16_to_cpu(
+ t->tagIdent);
+ location = le32_to_cpu(
+ t->tagLocation);
brelse(bh);
}
}
if (ident == TAG_IDENT_AVDP &&
- location == last[i] - 256 - sbi->s_session) {
+ location == last[i] - 256 -
+ sbi->s_session) {
lastblock = last[i];
sbi->s_anchor[1] = last[i] - 256;
} else {
ident = location = 0;
if (last[i] >= 312 + sbi->s_session) {
- bh = sb_bread(sb, last[i] - 312 - sbi->s_session);
+ bh = sb_bread(sb,
+ last[i] - 312 -
+ sbi->s_session);
if (bh) {
- tag *t = (tag *)bh->b_data;
- ident = le16_to_cpu(t->tagIdent);
- location = le32_to_cpu(t->tagLocation);
+ tag *t = (tag *)
+ bh->b_data;
+ ident = le16_to_cpu(
+ t->tagIdent);
+ location = le32_to_cpu(
+ t->tagLocation);
brelse(bh);
}
}
if (ident == TAG_IDENT_AVDP &&
location == udf_variable_to_fixed(last[i]) - 256) {
- UDF_SET_FLAG(sb, UDF_FLAG_VARCONV);
+ UDF_SET_FLAG(sb,
+ UDF_FLAG_VARCONV);
lastblock = udf_variable_to_fixed(last[i]);
sbi->s_anchor[1] = lastblock - 256;
}
else {
brelse(bh);
if ((ident != TAG_IDENT_AVDP) &&
- (i || (ident != TAG_IDENT_FE && ident != TAG_IDENT_EFE)))
+ (i || (ident != TAG_IDENT_FE &&
+ ident != TAG_IDENT_EFE)))
sbi->s_anchor[i] = 0;
}
}
case TAG_IDENT_SBD:
{
struct spaceBitmapDesc *sp;
- sp = (struct spaceBitmapDesc *)bh->b_data;
+ sp = (struct spaceBitmapDesc *)
+ bh->b_data;
newfileset.logicalBlockNum += 1 +
((le32_to_cpu(sp->numOfBytes) +
- sizeof(struct spaceBitmapDesc) - 1)
- >> sb->s_blocksize_bits);
+ sizeof(struct spaceBitmapDesc)
+ - 1) >> sb->s_blocksize_bits);
brelse(bh);
break;
}
static void udf_load_pvoldesc(struct super_block *sb, struct buffer_head *bh)
{
struct primaryVolDesc *pvoldesc;
- time_t recording;
- long recording_usec;
struct ustr instr;
struct ustr outstr;
pvoldesc = (struct primaryVolDesc *)bh->b_data;
- if (udf_stamp_to_time(&recording, &recording_usec,
- lets_to_cpu(pvoldesc->recordingDateAndTime))) {
+ if (udf_disk_stamp_to_time(&UDF_SB(sb)->s_record_time,
+ pvoldesc->recordingDateAndTime)) {
kernel_timestamp ts;
ts = lets_to_cpu(pvoldesc->recordingDateAndTime);
- udf_debug("recording time %ld/%ld, %04u/%02u/%02u"
+ udf_debug("recording time %04u/%02u/%02u"
" %02u:%02u (%x)\n",
- recording, recording_usec,
ts.year, ts.month, ts.day, ts.hour,
ts.minute, ts.typeAndTimezone);
- UDF_SB(sb)->s_record_time.tv_sec = recording;
- UDF_SB(sb)->s_record_time.tv_nsec = recording_usec * 1000;
}
- if (!udf_build_ustr(&instr, pvoldesc->volIdent, 32)) {
+ if (!udf_build_ustr(&instr, pvoldesc->volIdent, 32))
if (udf_CS0toUTF8(&outstr, &instr)) {
strncpy(UDF_SB(sb)->s_volume_ident, outstr.u_name,
outstr.u_len > 31 ? 31 : outstr.u_len);
- udf_debug("volIdent[] = '%s'\n", UDF_SB(sb)->s_volume_ident);
+ udf_debug("volIdent[] = '%s'\n",
+ UDF_SB(sb)->s_volume_ident);
}
- }
- if (!udf_build_ustr(&instr, pvoldesc->volSetIdent, 128)) {
+ if (!udf_build_ustr(&instr, pvoldesc->volSetIdent, 128))
if (udf_CS0toUTF8(&outstr, &instr))
udf_debug("volSetIdent[] = '%s'\n", outstr.u_name);
- }
}
static void udf_load_fileset(struct super_block *sb, struct buffer_head *bh,
int udf_compute_nr_groups(struct super_block *sb, u32 partition)
{
struct udf_part_map *map = &UDF_SB(sb)->s_partmaps[partition];
- return (map->s_partition_len +
- (sizeof(struct spaceBitmapDesc) << 3) +
- (sb->s_blocksize * 8) - 1) /
- (sb->s_blocksize * 8);
+ return DIV_ROUND_UP(map->s_partition_len +
+ (sizeof(struct spaceBitmapDesc) << 3),
+ sb->s_blocksize * 8);
}
static struct udf_bitmap *udf_sb_alloc_bitmap(struct super_block *sb, u32 index)
for (i = 0; i < sbi->s_partitions; i++) {
map = &sbi->s_partmaps[i];
udf_debug("Searching map: (%d == %d)\n",
- map->s_partition_num, le16_to_cpu(p->partitionNumber));
- if (map->s_partition_num == le16_to_cpu(p->partitionNumber)) {
- map->s_partition_len = le32_to_cpu(p->partitionLength); /* blocks */
- map->s_partition_root = le32_to_cpu(p->partitionStartingLocation);
- if (le32_to_cpu(p->accessType) == PD_ACCESS_TYPE_READ_ONLY)
- map->s_partition_flags |= UDF_PART_FLAG_READ_ONLY;
- if (le32_to_cpu(p->accessType) == PD_ACCESS_TYPE_WRITE_ONCE)
- map->s_partition_flags |= UDF_PART_FLAG_WRITE_ONCE;
- if (le32_to_cpu(p->accessType) == PD_ACCESS_TYPE_REWRITABLE)
- map->s_partition_flags |= UDF_PART_FLAG_REWRITABLE;
- if (le32_to_cpu(p->accessType) == PD_ACCESS_TYPE_OVERWRITABLE)
- map->s_partition_flags |= UDF_PART_FLAG_OVERWRITABLE;
+ map->s_partition_num,
+ le16_to_cpu(p->partitionNumber));
+ if (map->s_partition_num ==
+ le16_to_cpu(p->partitionNumber)) {
+ map->s_partition_len =
+ le32_to_cpu(p->partitionLength); /* blocks */
+ map->s_partition_root =
+ le32_to_cpu(p->partitionStartingLocation);
+ if (p->accessType ==
+ cpu_to_le32(PD_ACCESS_TYPE_READ_ONLY))
+ map->s_partition_flags |=
+ UDF_PART_FLAG_READ_ONLY;
+ if (p->accessType ==
+ cpu_to_le32(PD_ACCESS_TYPE_WRITE_ONCE))
+ map->s_partition_flags |=
+ UDF_PART_FLAG_WRITE_ONCE;
+ if (p->accessType ==
+ cpu_to_le32(PD_ACCESS_TYPE_REWRITABLE))
+ map->s_partition_flags |=
+ UDF_PART_FLAG_REWRITABLE;
+ if (p->accessType ==
+ cpu_to_le32(PD_ACCESS_TYPE_OVERWRITABLE))
+ map->s_partition_flags |=
+ UDF_PART_FLAG_OVERWRITABLE;
if (!strcmp(p->partitionContents.ident,
PD_PARTITION_CONTENTS_NSR02) ||
PD_PARTITION_CONTENTS_NSR03)) {
struct partitionHeaderDesc *phd;
- phd = (struct partitionHeaderDesc *)(p->partitionContentsUse);
+ phd = (struct partitionHeaderDesc *)
+ (p->partitionContentsUse);
if (phd->unallocSpaceTable.extLength) {
kernel_lb_addr loc = {
.logicalBlockNum = le32_to_cpu(phd->unallocSpaceTable.extPosition),
udf_debug("cannot load unallocSpaceTable (part %d)\n", i);
return 1;
}
- map->s_partition_flags |= UDF_PART_FLAG_UNALLOC_TABLE;
+ map->s_partition_flags |=
+ UDF_PART_FLAG_UNALLOC_TABLE;
udf_debug("unallocSpaceTable (part %d) @ %ld\n",
i, map->s_uspace.s_table->i_ino);
}
if (phd->unallocSpaceBitmap.extLength) {
- map->s_uspace.s_bitmap = udf_sb_alloc_bitmap(sb, i);
- if (map->s_uspace.s_bitmap != NULL) {
- map->s_uspace.s_bitmap->s_extLength =
+ struct udf_bitmap *bitmap =
+ udf_sb_alloc_bitmap(sb, i);
+ map->s_uspace.s_bitmap = bitmap;
+ if (bitmap != NULL) {
+ bitmap->s_extLength =
le32_to_cpu(phd->unallocSpaceBitmap.extLength);
- map->s_uspace.s_bitmap->s_extPosition =
+ bitmap->s_extPosition =
le32_to_cpu(phd->unallocSpaceBitmap.extPosition);
map->s_partition_flags |= UDF_PART_FLAG_UNALLOC_BITMAP;
udf_debug("unallocSpaceBitmap (part %d) @ %d\n",
- i, map->s_uspace.s_bitmap->s_extPosition);
+ i, bitmap->s_extPosition);
}
}
if (phd->partitionIntegrityTable.extLength)
udf_debug("cannot load freedSpaceTable (part %d)\n", i);
return 1;
}
- map->s_partition_flags |= UDF_PART_FLAG_FREED_TABLE;
+ map->s_partition_flags |=
+ UDF_PART_FLAG_FREED_TABLE;
udf_debug("freedSpaceTable (part %d) @ %ld\n",
i, map->s_fspace.s_table->i_ino);
}
if (phd->freedSpaceBitmap.extLength) {
- map->s_fspace.s_bitmap = udf_sb_alloc_bitmap(sb, i);
- if (map->s_fspace.s_bitmap != NULL) {
- map->s_fspace.s_bitmap->s_extLength =
+ struct udf_bitmap *bitmap =
+ udf_sb_alloc_bitmap(sb, i);
+ map->s_fspace.s_bitmap = bitmap;
+ if (bitmap != NULL) {
+ bitmap->s_extLength =
le32_to_cpu(phd->freedSpaceBitmap.extLength);
- map->s_fspace.s_bitmap->s_extPosition =
+ bitmap->s_extPosition =
le32_to_cpu(phd->freedSpaceBitmap.extPosition);
map->s_partition_flags |= UDF_PART_FLAG_FREED_BITMAP;
udf_debug("freedSpaceBitmap (part %d) @ %d\n",
- i, map->s_fspace.s_bitmap->s_extPosition);
+ i, bitmap->s_extPosition);
}
}
}
break;
}
}
- if (i == sbi->s_partitions) {
+ if (i == sbi->s_partitions)
udf_debug("Partition (%d) not found in partition map\n",
le16_to_cpu(p->partitionNumber));
- } else {
+ else
udf_debug("Partition (%d:%d type %x) starts at physical %d, "
"block length %d\n",
le16_to_cpu(p->partitionNumber), i,
map->s_partition_type,
map->s_partition_root,
map->s_partition_len);
- }
return 0;
}
int i, j, offset;
uint8_t type;
struct udf_sb_info *sbi = UDF_SB(sb);
+ struct genericPartitionMap *gpm;
lvd = (struct logicalVolDesc *)bh->b_data;
for (i = 0, offset = 0;
i < sbi->s_partitions && offset < le32_to_cpu(lvd->mapTableLength);
- i++, offset += ((struct genericPartitionMap *)&(lvd->partitionMaps[offset]))->partitionMapLength) {
- struct udf_part_map *map = &sbi->s_partmaps[i];
- type = ((struct genericPartitionMap *)&(lvd->partitionMaps[offset]))->partitionMapType;
+ i++, offset += gpm->partitionMapLength) {
+ struct udf_part_map *map = &sbi->s_partmaps[i];
+ gpm = (struct genericPartitionMap *)
+ &(lvd->partitionMaps[offset]);
+ type = gpm->partitionMapType;
if (type == 1) {
- struct genericPartitionMap1 *gpm1 = (struct genericPartitionMap1 *)&(lvd->partitionMaps[offset]);
+ struct genericPartitionMap1 *gpm1 =
+ (struct genericPartitionMap1 *)gpm;
map->s_partition_type = UDF_TYPE1_MAP15;
map->s_volumeseqnum = le16_to_cpu(gpm1->volSeqNum);
map->s_partition_num = le16_to_cpu(gpm1->partitionNum);
map->s_partition_func = NULL;
} else if (type == 2) {
- struct udfPartitionMap2 *upm2 = (struct udfPartitionMap2 *)&(lvd->partitionMaps[offset]);
- if (!strncmp(upm2->partIdent.ident, UDF_ID_VIRTUAL, strlen(UDF_ID_VIRTUAL))) {
- if (le16_to_cpu(((__le16 *)upm2->partIdent.identSuffix)[0]) == 0x0150) {
- map->s_partition_type = UDF_VIRTUAL_MAP15;
- map->s_partition_func = udf_get_pblock_virt15;
- } else if (le16_to_cpu(((__le16 *)upm2->partIdent.identSuffix)[0]) == 0x0200) {
- map->s_partition_type = UDF_VIRTUAL_MAP20;
- map->s_partition_func = udf_get_pblock_virt20;
+ struct udfPartitionMap2 *upm2 =
+ (struct udfPartitionMap2 *)gpm;
+ if (!strncmp(upm2->partIdent.ident, UDF_ID_VIRTUAL,
+ strlen(UDF_ID_VIRTUAL))) {
+ u16 suf =
+ le16_to_cpu(((__le16 *)upm2->partIdent.
+ identSuffix)[0]);
+ if (suf == 0x0150) {
+ map->s_partition_type =
+ UDF_VIRTUAL_MAP15;
+ map->s_partition_func =
+ udf_get_pblock_virt15;
+ } else if (suf == 0x0200) {
+ map->s_partition_type =
+ UDF_VIRTUAL_MAP20;
+ map->s_partition_func =
+ udf_get_pblock_virt20;
}
- } else if (!strncmp(upm2->partIdent.ident, UDF_ID_SPARABLE, strlen(UDF_ID_SPARABLE))) {
+ } else if (!strncmp(upm2->partIdent.ident,
+ UDF_ID_SPARABLE,
+ strlen(UDF_ID_SPARABLE))) {
uint32_t loc;
uint16_t ident;
struct sparingTable *st;
- struct sparablePartitionMap *spm = (struct sparablePartitionMap *)&(lvd->partitionMaps[offset]);
+ struct sparablePartitionMap *spm =
+ (struct sparablePartitionMap *)gpm;
map->s_partition_type = UDF_SPARABLE_MAP15;
- map->s_type_specific.s_sparing.s_packet_len = le16_to_cpu(spm->packetLength);
+ map->s_type_specific.s_sparing.s_packet_len =
+ le16_to_cpu(spm->packetLength);
for (j = 0; j < spm->numSparingTables; j++) {
- loc = le32_to_cpu(spm->locSparingTable[j]);
- map->s_type_specific.s_sparing.s_spar_map[j] =
- udf_read_tagged(sb, loc, loc, &ident);
- if (map->s_type_specific.s_sparing.s_spar_map[j] != NULL) {
- st = (struct sparingTable *)map->s_type_specific.s_sparing.s_spar_map[j]->b_data;
- if (ident != 0 ||
- strncmp(st->sparingIdent.ident, UDF_ID_SPARING, strlen(UDF_ID_SPARING))) {
- brelse(map->s_type_specific.s_sparing.s_spar_map[j]);
- map->s_type_specific.s_sparing.s_spar_map[j] = NULL;
+ struct buffer_head *bh2;
+
+ loc = le32_to_cpu(
+ spm->locSparingTable[j]);
+ bh2 = udf_read_tagged(sb, loc, loc,
+ &ident);
+ map->s_type_specific.s_sparing.
+ s_spar_map[j] = bh2;
+
+ if (bh2 != NULL) {
+ st = (struct sparingTable *)
+ bh2->b_data;
+ if (ident != 0 || strncmp(
+ st->sparingIdent.ident,
+ UDF_ID_SPARING,
+ strlen(UDF_ID_SPARING))) {
+ brelse(bh2);
+ map->s_type_specific.
+ s_sparing.
+ s_spar_map[j] =
+ NULL;
}
}
}
{
struct buffer_head *bh = NULL;
struct udf_vds_record vds[VDS_POS_LENGTH];
+ struct udf_vds_record *curr;
struct generic_desc *gd;
struct volDescPtr *vdp;
int done = 0;
vdsn = le32_to_cpu(gd->volDescSeqNum);
switch (ident) {
case TAG_IDENT_PVD: /* ISO 13346 3/10.1 */
- if (vdsn >= vds[VDS_POS_PRIMARY_VOL_DESC].volDescSeqNum) {
- vds[VDS_POS_PRIMARY_VOL_DESC].volDescSeqNum = vdsn;
- vds[VDS_POS_PRIMARY_VOL_DESC].block = block;
+ curr = &vds[VDS_POS_PRIMARY_VOL_DESC];
+ if (vdsn >= curr->volDescSeqNum) {
+ curr->volDescSeqNum = vdsn;
+ curr->block = block;
}
break;
case TAG_IDENT_VDP: /* ISO 13346 3/10.3 */
- if (vdsn >= vds[VDS_POS_VOL_DESC_PTR].volDescSeqNum) {
- vds[VDS_POS_VOL_DESC_PTR].volDescSeqNum = vdsn;
- vds[VDS_POS_VOL_DESC_PTR].block = block;
+ curr = &vds[VDS_POS_VOL_DESC_PTR];
+ if (vdsn >= curr->volDescSeqNum) {
+ curr->volDescSeqNum = vdsn;
+ curr->block = block;
vdp = (struct volDescPtr *)bh->b_data;
- next_s = le32_to_cpu(vdp->nextVolDescSeqExt.extLocation);
- next_e = le32_to_cpu(vdp->nextVolDescSeqExt.extLength);
+ next_s = le32_to_cpu(
+ vdp->nextVolDescSeqExt.extLocation);
+ next_e = le32_to_cpu(
+ vdp->nextVolDescSeqExt.extLength);
next_e = next_e >> sb->s_blocksize_bits;
next_e += next_s;
}
break;
case TAG_IDENT_IUVD: /* ISO 13346 3/10.4 */
- if (vdsn >= vds[VDS_POS_IMP_USE_VOL_DESC].volDescSeqNum) {
- vds[VDS_POS_IMP_USE_VOL_DESC].volDescSeqNum = vdsn;
- vds[VDS_POS_IMP_USE_VOL_DESC].block = block;
+ curr = &vds[VDS_POS_IMP_USE_VOL_DESC];
+ if (vdsn >= curr->volDescSeqNum) {
+ curr->volDescSeqNum = vdsn;
+ curr->block = block;
}
break;
case TAG_IDENT_PD: /* ISO 13346 3/10.5 */
- if (!vds[VDS_POS_PARTITION_DESC].block)
- vds[VDS_POS_PARTITION_DESC].block = block;
+ curr = &vds[VDS_POS_PARTITION_DESC];
+ if (!curr->block)
+ curr->block = block;
break;
case TAG_IDENT_LVD: /* ISO 13346 3/10.6 */
- if (vdsn >= vds[VDS_POS_LOGICAL_VOL_DESC].volDescSeqNum) {
- vds[VDS_POS_LOGICAL_VOL_DESC].volDescSeqNum = vdsn;
- vds[VDS_POS_LOGICAL_VOL_DESC].block = block;
+ curr = &vds[VDS_POS_LOGICAL_VOL_DESC];
+ if (vdsn >= curr->volDescSeqNum) {
+ curr->volDescSeqNum = vdsn;
+ curr->block = block;
}
break;
case TAG_IDENT_USD: /* ISO 13346 3/10.8 */
- if (vdsn >= vds[VDS_POS_UNALLOC_SPACE_DESC].volDescSeqNum) {
- vds[VDS_POS_UNALLOC_SPACE_DESC].volDescSeqNum = vdsn;
- vds[VDS_POS_UNALLOC_SPACE_DESC].block = block;
+ curr = &vds[VDS_POS_UNALLOC_SPACE_DESC];
+ if (vdsn >= curr->volDescSeqNum) {
+ curr->volDescSeqNum = vdsn;
+ curr->block = block;
}
break;
case TAG_IDENT_TD: /* ISO 13346 3/10.9 */
block = next_s;
lastblock = next_e;
next_s = next_e = 0;
- } else {
+ } else
done = 1;
- }
break;
}
brelse(bh);
sbi = UDF_SB(sb);
for (i = 0; i < ARRAY_SIZE(sbi->s_anchor); i++) {
- if (sbi->s_anchor[i] &&
- (bh = udf_read_tagged(sb, sbi->s_anchor[i],
- sbi->s_anchor[i], &ident))) {
- anchor = (struct anchorVolDescPtr *)bh->b_data;
-
- /* Locate the main sequence */
- main_s = le32_to_cpu(anchor->mainVolDescSeqExt.extLocation);
- main_e = le32_to_cpu(anchor->mainVolDescSeqExt.extLength);
- main_e = main_e >> sb->s_blocksize_bits;
- main_e += main_s;
-
- /* Locate the reserve sequence */
- reserve_s = le32_to_cpu(anchor->reserveVolDescSeqExt.extLocation);
- reserve_e = le32_to_cpu(anchor->reserveVolDescSeqExt.extLength);
- reserve_e = reserve_e >> sb->s_blocksize_bits;
- reserve_e += reserve_s;
+ if (!sbi->s_anchor[i])
+ continue;
+ bh = udf_read_tagged(sb, sbi->s_anchor[i], sbi->s_anchor[i],
+ &ident);
+ if (!bh)
+ continue;
- brelse(bh);
+ anchor = (struct anchorVolDescPtr *)bh->b_data;
- /* Process the main & reserve sequences */
- /* responsible for finding the PartitionDesc(s) */
- if (!(udf_process_sequence(sb, main_s, main_e, fileset) &&
- udf_process_sequence(sb, reserve_s, reserve_e, fileset)))
- break;
- }
+ /* Locate the main sequence */
+ main_s = le32_to_cpu(anchor->mainVolDescSeqExt.extLocation);
+ main_e = le32_to_cpu(anchor->mainVolDescSeqExt.extLength);
+ main_e = main_e >> sb->s_blocksize_bits;
+ main_e += main_s;
+
+ /* Locate the reserve sequence */
+ reserve_s = le32_to_cpu(
+ anchor->reserveVolDescSeqExt.extLocation);
+ reserve_e = le32_to_cpu(
+ anchor->reserveVolDescSeqExt.extLength);
+ reserve_e = reserve_e >> sb->s_blocksize_bits;
+ reserve_e += reserve_s;
+
+ brelse(bh);
+
+ /* Process the main & reserve sequences */
+ /* responsible for finding the PartitionDesc(s) */
+ if (!(udf_process_sequence(sb, main_s, main_e,
+ fileset) &&
+ udf_process_sequence(sb, reserve_s, reserve_e,
+ fileset)))
+ break;
}
if (i == ARRAY_SIZE(sbi->s_anchor)) {
udf_debug("No Anchor block found\n");
return 1;
- } else
- udf_debug("Using anchor in block %d\n", sbi->s_anchor[i]);
+ }
+ udf_debug("Using anchor in block %d\n", sbi->s_anchor[i]);
for (i = 0; i < sbi->s_partitions; i++) {
kernel_lb_addr uninitialized_var(ino);
for (j = 0; j < sbi->s_partitions; j++) {
struct udf_part_map *map2 = &sbi->s_partmaps[j];
if (j != i &&
- map->s_volumeseqnum == map2->s_volumeseqnum &&
- map->s_partition_num == map2->s_partition_num) {
+ map->s_volumeseqnum ==
+ map2->s_volumeseqnum &&
+ map->s_partition_num ==
+ map2->s_partition_num) {
ino.partitionReferenceNum = j;
- ino.logicalBlockNum = sbi->s_last_block - map2->s_partition_root;
+ ino.logicalBlockNum =
+ sbi->s_last_block -
+ map2->s_partition_root;
break;
}
}
(sbi->s_vat_inode->i_size - 36) >> 2;
} else if (map->s_partition_type == UDF_VIRTUAL_MAP20) {
uint32_t pos;
+ struct virtualAllocationTable20 *vat20;
pos = udf_block_map(sbi->s_vat_inode, 0);
bh = sb_bread(sb, pos);
if (!bh)
return 1;
+ vat20 = (struct virtualAllocationTable20 *)
+ bh->b_data +
+ udf_ext0_offset(sbi->s_vat_inode);
map->s_type_specific.s_virtual.s_start_offset =
- le16_to_cpu(((struct virtualAllocationTable20 *)bh->b_data +
- udf_ext0_offset(sbi->s_vat_inode))->lengthHeader) +
+ le16_to_cpu(vat20->lengthHeader) +
udf_ext0_offset(sbi->s_vat_inode);
- map->s_type_specific.s_virtual.s_num_entries = (sbi->s_vat_inode->i_size -
- map->s_type_specific.s_virtual.s_start_offset) >> 2;
+ map->s_type_specific.s_virtual.s_num_entries =
+ (sbi->s_vat_inode->i_size -
+ map->s_type_specific.s_virtual.
+ s_start_offset) >> 2;
brelse(bh);
}
map->s_partition_root = udf_get_pblock(sb, 0, i, 0);
struct udf_sb_info *sbi = UDF_SB(sb);
struct buffer_head *bh = sbi->s_lvid_bh;
if (bh) {
- int i;
- kernel_timestamp cpu_time;
- struct logicalVolIntegrityDesc *lvid = (struct logicalVolIntegrityDesc *)bh->b_data;
- struct logicalVolIntegrityDescImpUse *lvidiu = udf_sb_lvidiu(sbi);
+ struct logicalVolIntegrityDesc *lvid =
+ (struct logicalVolIntegrityDesc *)bh->b_data;
+ struct logicalVolIntegrityDescImpUse *lvidiu =
+ udf_sb_lvidiu(sbi);
lvidiu->impIdent.identSuffix[0] = UDF_OS_CLASS_UNIX;
lvidiu->impIdent.identSuffix[1] = UDF_OS_ID_LINUX;
- if (udf_time_to_stamp(&cpu_time, CURRENT_TIME))
- lvid->recordingDateAndTime = cpu_to_lets(cpu_time);
+ udf_time_to_disk_stamp(&lvid->recordingDateAndTime,
+ CURRENT_TIME);
lvid->integrityType = LVID_INTEGRITY_TYPE_OPEN;
- lvid->descTag.descCRC = cpu_to_le16(udf_crc((char *)lvid + sizeof(tag),
- le16_to_cpu(lvid->descTag.descCRCLength), 0));
-
- lvid->descTag.tagChecksum = 0;
- for (i = 0; i < 16; i++)
- if (i != 4)
- lvid->descTag.tagChecksum +=
- ((uint8_t *) &(lvid->descTag))[i];
+ lvid->descTag.descCRC = cpu_to_le16(
+ udf_crc((char *)lvid + sizeof(tag),
+ le16_to_cpu(lvid->descTag.descCRCLength),
+ 0));
+ lvid->descTag.tagChecksum = udf_tag_checksum(&lvid->descTag);
mark_buffer_dirty(bh);
}
}
static void udf_close_lvid(struct super_block *sb)
{
- kernel_timestamp cpu_time;
- int i;
struct udf_sb_info *sbi = UDF_SB(sb);
struct buffer_head *bh = sbi->s_lvid_bh;
struct logicalVolIntegrityDesc *lvid;
lvid = (struct logicalVolIntegrityDesc *)bh->b_data;
if (lvid->integrityType == LVID_INTEGRITY_TYPE_OPEN) {
- struct logicalVolIntegrityDescImpUse *lvidiu = udf_sb_lvidiu(sbi);
+ struct logicalVolIntegrityDescImpUse *lvidiu =
+ udf_sb_lvidiu(sbi);
lvidiu->impIdent.identSuffix[0] = UDF_OS_CLASS_UNIX;
lvidiu->impIdent.identSuffix[1] = UDF_OS_ID_LINUX;
- if (udf_time_to_stamp(&cpu_time, CURRENT_TIME))
- lvid->recordingDateAndTime = cpu_to_lets(cpu_time);
+ udf_time_to_disk_stamp(&lvid->recordingDateAndTime,
+ CURRENT_TIME);
if (UDF_MAX_WRITE_VERSION > le16_to_cpu(lvidiu->maxUDFWriteRev))
- lvidiu->maxUDFWriteRev = cpu_to_le16(UDF_MAX_WRITE_VERSION);
+ lvidiu->maxUDFWriteRev =
+ cpu_to_le16(UDF_MAX_WRITE_VERSION);
if (sbi->s_udfrev > le16_to_cpu(lvidiu->minUDFReadRev))
lvidiu->minUDFReadRev = cpu_to_le16(sbi->s_udfrev);
if (sbi->s_udfrev > le16_to_cpu(lvidiu->minUDFWriteRev))
lvidiu->minUDFWriteRev = cpu_to_le16(sbi->s_udfrev);
lvid->integrityType = cpu_to_le32(LVID_INTEGRITY_TYPE_CLOSE);
- lvid->descTag.descCRC =
- cpu_to_le16(udf_crc((char *)lvid + sizeof(tag),
- le16_to_cpu(lvid->descTag.descCRCLength), 0));
-
- lvid->descTag.tagChecksum = 0;
- for (i = 0; i < 16; i++)
- if (i != 4)
- lvid->descTag.tagChecksum +=
- ((uint8_t *)&(lvid->descTag))[i];
+ lvid->descTag.descCRC = cpu_to_le16(
+ udf_crc((char *)lvid + sizeof(tag),
+ le16_to_cpu(lvid->descTag.descCRCLength),
+ 0));
+ lvid->descTag.tagChecksum = udf_tag_checksum(&lvid->descTag);
mark_buffer_dirty(bh);
}
}
{
int i;
int nr_groups = bitmap->s_nr_groups;
- int size = sizeof(struct udf_bitmap) + (sizeof(struct buffer_head *) * nr_groups);
+ int size = sizeof(struct udf_bitmap) + (sizeof(struct buffer_head *) *
+ nr_groups);
for (i = 0; i < nr_groups; i++)
if (bitmap->s_block_bitmap[i])
vfree(bitmap);
}
-/*
- * udf_read_super
- *
- * PURPOSE
- * Complete the specified super block.
- *
- * PRE-CONDITIONS
- * sb Pointer to superblock to complete - never NULL.
- * sb->s_dev Device to read suberblock from.
- * options Pointer to mount options.
- * silent Silent flag.
- *
- * HISTORY
- * July 1, 1997 - Andrew E. Mileski
- * Written, tested, and released.
- */
static int udf_fill_super(struct super_block *sb, void *options, int silent)
{
int i;
mutex_init(&sbi->s_alloc_mutex);
- if (!udf_parse_options((char *)options, &uopt))
+ if (!udf_parse_options((char *)options, &uopt, false))
goto error_out;
if (uopt.flags & (1 << UDF_FLAG_UTF8) &&
sbi->s_nls_map = uopt.nls_map;
/* Set the block size for all transfers */
- if (!udf_set_blocksize(sb, uopt.blocksize))
+ if (!sb_min_blocksize(sb, uopt.blocksize)) {
+ udf_debug("Bad block size (%d)\n", uopt.blocksize);
+ printk(KERN_ERR "udf: bad block size (%d)\n", uopt.blocksize);
goto error_out;
+ }
if (uopt.session == 0xFFFFFFFF)
sbi->s_session = udf_get_last_session(sb);
udf_debug("Lastblock=%d\n", sbi->s_last_block);
if (sbi->s_lvid_bh) {
- struct logicalVolIntegrityDescImpUse *lvidiu = udf_sb_lvidiu(sbi);
+ struct logicalVolIntegrityDescImpUse *lvidiu =
+ udf_sb_lvidiu(sbi);
uint16_t minUDFReadRev = le16_to_cpu(lvidiu->minUDFReadRev);
uint16_t minUDFWriteRev = le16_to_cpu(lvidiu->minUDFWriteRev);
- /* uint16_t maxUDFWriteRev = le16_to_cpu(lvidiu->maxUDFWriteRev); */
+ /* uint16_t maxUDFWriteRev =
+ le16_to_cpu(lvidiu->maxUDFWriteRev); */
if (minUDFReadRev > UDF_MAX_READ_VERSION) {
- printk(KERN_ERR "UDF-fs: minUDFReadRev=%x (max is %x)\n",
+ printk(KERN_ERR "UDF-fs: minUDFReadRev=%x "
+ "(max is %x)\n",
le16_to_cpu(lvidiu->minUDFReadRev),
UDF_MAX_READ_VERSION);
goto error_out;
- } else if (minUDFWriteRev > UDF_MAX_WRITE_VERSION) {
+ } else if (minUDFWriteRev > UDF_MAX_WRITE_VERSION)
sb->s_flags |= MS_RDONLY;
- }
sbi->s_udfrev = minUDFWriteRev;
goto error_out;
}
- if (sbi->s_partmaps[sbi->s_partition].s_partition_flags & UDF_PART_FLAG_READ_ONLY) {
- printk(KERN_NOTICE "UDF-fs: Partition marked readonly; forcing readonly mount\n");
+ if (sbi->s_partmaps[sbi->s_partition].s_partition_flags &
+ UDF_PART_FLAG_READ_ONLY) {
+ printk(KERN_NOTICE "UDF-fs: Partition marked readonly; "
+ "forcing readonly mount\n");
sb->s_flags |= MS_RDONLY;
}
}
if (!silent) {
- kernel_timestamp ts;
- udf_time_to_stamp(&ts, sbi->s_record_time);
- udf_info("UDF %s (%s) Mounting volume '%s', "
+ timestamp ts;
+ udf_time_to_disk_stamp(&ts, sbi->s_record_time);
+ udf_info("UDF: Mounting volume '%s', "
"timestamp %04u/%02u/%02u %02u:%02u (%x)\n",
- UDFFS_VERSION, UDFFS_DATE,
- sbi->s_volume_ident, ts.year, ts.month, ts.day,
- ts.hour, ts.minute, ts.typeAndTimezone);
+ sbi->s_volume_ident, le16_to_cpu(ts.year), ts.month, ts.day,
+ ts.hour, ts.minute, le16_to_cpu(ts.typeAndTimezone));
}
if (!(sb->s_flags & MS_RDONLY))
udf_open_lvid(sb);
/* perhaps it's not extensible enough, but for now ... */
inode = udf_iget(sb, rootdir);
if (!inode) {
- printk(KERN_ERR "UDF-fs: Error in udf_iget, block=%d, partition=%d\n",
+ printk(KERN_ERR "UDF-fs: Error in udf_iget, block=%d, "
+ "partition=%d\n",
rootdir.logicalBlockNum, rootdir.partitionReferenceNum);
goto error_out;
}
udf_sb_free_bitmap(map->s_fspace.s_bitmap);
if (map->s_partition_type == UDF_SPARABLE_MAP15)
for (i = 0; i < 4; i++)
- brelse(map->s_type_specific.s_sparing.s_spar_map[i]);
+ brelse(map->s_type_specific.s_sparing.
+ s_spar_map[i]);
}
#ifdef CONFIG_UDF_NLS
if (UDF_QUERY_FLAG(sb, UDF_FLAG_NLS_MAP))
return -EINVAL;
}
-void udf_error(struct super_block *sb, const char *function,
- const char *fmt, ...)
+static void udf_error(struct super_block *sb, const char *function,
+ const char *fmt, ...)
{
va_list args;
sb->s_id, function, error_buf);
}
-/*
- * udf_put_super
- *
- * PURPOSE
- * Prepare for destruction of the superblock.
- *
- * DESCRIPTION
- * Called before the filesystem is unmounted.
- *
- * HISTORY
- * July 1, 1997 - Andrew E. Mileski
- * Written, tested, and released.
- */
static void udf_put_super(struct super_block *sb)
{
int i;
udf_sb_free_bitmap(map->s_fspace.s_bitmap);
if (map->s_partition_type == UDF_SPARABLE_MAP15)
for (i = 0; i < 4; i++)
- brelse(map->s_type_specific.s_sparing.s_spar_map[i]);
+ brelse(map->s_type_specific.s_sparing.
+ s_spar_map[i]);
}
#ifdef CONFIG_UDF_NLS
if (UDF_QUERY_FLAG(sb, UDF_FLAG_NLS_MAP))
sb->s_fs_info = NULL;
}
-/*
- * udf_stat_fs
- *
- * PURPOSE
- * Return info about the filesystem.
- *
- * DESCRIPTION
- * Called by sys_statfs()
- *
- * HISTORY
- * July 1, 1997 - Andrew E. Mileski
- * Written, tested, and released.
- */
static int udf_statfs(struct dentry *dentry, struct kstatfs *buf)
{
struct super_block *sb = dentry->d_sb;
return 0;
}
-static unsigned char udf_bitmap_lookup[16] = {
- 0, 1, 1, 2, 1, 2, 2, 3, 1, 2, 2, 3, 2, 3, 3, 4
-};
-
-static unsigned int udf_count_free_bitmap(struct super_block *sb, struct udf_bitmap *bitmap)
+static unsigned int udf_count_free_bitmap(struct super_block *sb,
+ struct udf_bitmap *bitmap)
{
struct buffer_head *bh = NULL;
unsigned int accum = 0;
int block = 0, newblock;
kernel_lb_addr loc;
uint32_t bytes;
- uint8_t value;
uint8_t *ptr;
uint16_t ident;
struct spaceBitmapDesc *bm;
ptr = (uint8_t *)bh->b_data;
while (bytes > 0) {
- while ((bytes > 0) && (index < sb->s_blocksize)) {
- value = ptr[index];
- accum += udf_bitmap_lookup[value & 0x0f];
- accum += udf_bitmap_lookup[value >> 4];
- index++;
- bytes--;
- }
+ u32 cur_bytes = min_t(u32, bytes, sb->s_blocksize - index);
+ accum += bitmap_weight((const unsigned long *)(ptr + index),
+ cur_bytes * 8);
+ bytes -= cur_bytes;
if (bytes) {
brelse(bh);
newblock = udf_get_lb_pblock(sb, loc, ++block);
return accum;
}
-static unsigned int udf_count_free_table(struct super_block *sb, struct inode *table)
+static unsigned int udf_count_free_table(struct super_block *sb,
+ struct inode *table)
{
unsigned int accum = 0;
uint32_t elen;
lock_kernel();
- epos.block = UDF_I_LOCATION(table);
+ epos.block = UDF_I(table)->i_location;
epos.offset = sizeof(struct unallocSpaceEntry);
epos.bh = NULL;
sbi = UDF_SB(sb);
if (sbi->s_lvid_bh) {
- struct logicalVolIntegrityDesc *lvid = (struct logicalVolIntegrityDesc *)sbi->s_lvid_bh->b_data;
+ struct logicalVolIntegrityDesc *lvid =
+ (struct logicalVolIntegrityDesc *)
+ sbi->s_lvid_bh->b_data;
if (le32_to_cpu(lvid->numOfPartitions) > sbi->s_partition) {
- accum = le32_to_cpu(lvid->freeSpaceTable[sbi->s_partition]);
+ accum = le32_to_cpu(
+ lvid->freeSpaceTable[sbi->s_partition]);
if (accum == 0xFFFFFFFF)
accum = 0;
}
projects / linux-2.6-omap-h63xx.git / blobdiff