by Marcin Ślusarz

[permalink] [raw]

Subject: Re: [PATCH 5/6] udf: remove unneeded kernel_timestamp type

On Tue, Feb 05, 2008 at 05:01:15PM +0100, Jan Kara wrote:
> On Sun 03-02-08 19:36:10, [email protected] wrote:
> > remove now unneeded kernel_timestamp type with conversion functions
> OK. Acked-by: Jan Kara <[email protected]>
updated version which aplies after changes to patch:
udf: convert udf_stamp_to_time and udf_time_to_stamp to use timestamps

---
udf: remove unneeded kernel_timestamp type

remove now unneeded kernel_timestamp type with conversion functions

Signed-off-by: Marcin Slusarz <[email protected]>
Acked-by: Jan Kara <[email protected]>
---
fs/udf/ecma_167.h | 13 -------------
fs/udf/super.c | 9 +++++----
fs/udf/udfend.h | 22 ----------------------
3 files changed, 5 insertions(+), 39 deletions(-)

diff --git a/fs/udf/ecma_167.h b/fs/udf/ecma_167.h
index 5638771..a0974df 100644
--- a/fs/udf/ecma_167.h
+++ b/fs/udf/ecma_167.h
@@ -70,19 +70,6 @@ typedef struct {
uint8_t microseconds;
} __attribute__ ((packed)) timestamp;

-typedef struct {
- uint16_t typeAndTimezone;
- int16_t year;
- uint8_t month;
- uint8_t day;
- uint8_t hour;
- uint8_t minute;
- uint8_t second;
- uint8_t centiseconds;
- uint8_t hundredsOfMicroseconds;
- uint8_t microseconds;
-} __attribute__ ((packed)) kernel_timestamp;
-
/* Type and Time Zone (ECMA 167r3 1/7.3.1) */
#define TIMESTAMP_TYPE_MASK 0xF000
#define TIMESTAMP_TYPE_CUT 0x0000
diff --git a/fs/udf/super.c b/fs/udf/super.c
index ab63dbb..56d9efb 100644
--- a/fs/udf/super.c
+++ b/fs/udf/super.c
@@ -982,12 +982,13 @@ static void udf_load_pvoldesc(struct super_block *sb, struct buffer_head *bh)

if (udf_disk_stamp_to_time(&UDF_SB(sb)->s_record_time,
pvoldesc->recordingDateAndTime)) {
- kernel_timestamp ts;
- ts = lets_to_cpu(pvoldesc->recordingDateAndTime);
+#ifdef UDFFS_DEBUG
+ timestamp *ts = &pvoldesc->recordingDateAndTime;
udf_debug("recording time %04u/%02u/%02u"
" %02u:%02u (%x)\n",
- ts.year, ts.month, ts.day, ts.hour,
- ts.minute, ts.typeAndTimezone);
+ le16_to_cpu(ts->year), ts->month, ts->day, ts->hour,
+ ts->minute, le16_to_cpu(ts->typeAndTimezone));
+#endif
}

if (!udf_build_ustr(&instr, pvoldesc->volIdent, 32))
diff --git a/fs/udf/udfend.h b/fs/udf/udfend.h
index c4bd120..489f52f 100644
--- a/fs/udf/udfend.h
+++ b/fs/udf/udfend.h
@@ -24,17 +24,6 @@ static inline lb_addr cpu_to_lelb(kernel_lb_addr in)
return out;
}

-static inline kernel_timestamp lets_to_cpu(timestamp in)
-{
- kernel_timestamp out;
-
- memcpy(&out, &in, sizeof(timestamp));
- out.typeAndTimezone = le16_to_cpu(in.typeAndTimezone);
- out.year = le16_to_cpu(in.year);
-
- return out;
-}
-
static inline short_ad lesa_to_cpu(short_ad in)
{
short_ad out;
@@ -85,15 +74,4 @@ static inline kernel_extent_ad leea_to_cpu(extent_ad in)
return out;
}

-static inline timestamp cpu_to_lets(kernel_timestamp in)
-{
- timestamp out;
-
- memcpy(&out, &in, sizeof(timestamp));
- out.typeAndTimezone = cpu_to_le16(in.typeAndTimezone);
- out.year = cpu_to_le16(in.year);
-
- return out;
-}
-
#endif /* __UDF_ENDIAN_H */
--
1.5.3.7

2008-02-10 10:34:01

by Marcin Ślusarz

[permalink] [raw]

Subject: Re: [PATCH 6/6] udf: super.c reorganization

On Wed, Feb 06, 2008 at 12:09:36PM +0100, Jan Kara wrote:
> On Tue 05-02-08 20:34:49, Marcin Slusarz wrote:
> > On Tue, Feb 05, 2008 at 05:22:19PM +0100, Jan Kara wrote:
> > > Actually, the loop below would be even more readable it you did:
> > >
> > > if (map->s_partition_num == le16_to_cpu(p->partitionNumber))
> > > break;
> > > And do the work after we exit from the loop.
> > >
> > >
(...)
> >
> > Ok. I didn't notice that. But it won't be as trivial as the rest. Separate patch?
> You're reindenting the code anyway, so moving it to another place isn't a
> big deal (doesn't make review any harder). So you can just merge it into
> the same patch. Thanks.
As you wish.

---
udf: super.c reorganization

reorganize few code blocks in super.c which
were needlessly indented (and hard to read):

so change from:
rettype fun()
{
init;
if (sth) {
long block of code;
}
}

to:
rettype fun()
{
init;
if (!sth)
return;
long block of code;
}

or

from:
rettype fun2()
{
init;
while (sth) {
init2();
if (sth2) {
long block of code;
}
}
}

to:
rettype fun2()
{
init;
while (sth) {
init2();
if (!sth2)
continue;
long block of code;
}
}

Signed-off-by: Marcin Slusarz <[email protected]>
Cc: Jan Kara <[email protected]>
---
fs/udf/super.c | 552 +++++++++++++++++++++++++++-----------------------------
1 files changed, 270 insertions(+), 282 deletions(-)

diff --git a/fs/udf/super.c b/fs/udf/super.c
index 56d9efb..45d7b62 100644
--- a/fs/udf/super.c
+++ b/fs/udf/super.c
@@ -864,18 +864,18 @@ static void udf_find_anchor(struct super_block *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);
- if (!bh)
+ if (!sbi->s_anchor[i])
+ continue;
+ bh = udf_read_tagged(sb, sbi->s_anchor[i],
+ sbi->s_anchor[i], &ident);
+ if (!bh)
+ sbi->s_anchor[i] = 0;
+ else {
+ brelse(bh);
+ if ((ident != TAG_IDENT_AVDP) &&
+ (i || (ident != TAG_IDENT_FE &&
+ ident != TAG_IDENT_EFE)))
sbi->s_anchor[i] = 0;
- else {
- brelse(bh);
- if ((ident != TAG_IDENT_AVDP) &&
- (i || (ident != TAG_IDENT_FE &&
- ident != TAG_IDENT_EFE)))
- sbi->s_anchor[i] = 0;
- }
}
}

@@ -1058,128 +1058,118 @@ static struct udf_bitmap *udf_sb_alloc_bitmap(struct super_block *sb, u32 index)

static int udf_load_partdesc(struct super_block *sb, struct buffer_head *bh)
{
- struct partitionDesc *p;
- int i;
+ struct partitionHeaderDesc *phd;
+ struct partitionDesc *p = (struct partitionDesc *)bh->b_data;
struct udf_part_map *map;
- struct udf_sb_info *sbi;
-
- p = (struct partitionDesc *)bh->b_data;
- sbi = UDF_SB(sb);
+ struct udf_sb_info *sbi = UDF_SB(sb);
+ bool found = false;
+ int i;
+ u16 partitionNumber = le16_to_cpu(p->partitionNumber);

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 (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) ||
- !strcmp(p->partitionContents.ident,
- PD_PARTITION_CONTENTS_NSR03)) {
- struct partitionHeaderDesc *phd;
-
- phd = (struct partitionHeaderDesc *)
- (p->partitionContentsUse);
- if (phd->unallocSpaceTable.extLength) {
- kernel_lb_addr loc = {
- .logicalBlockNum = le32_to_cpu(phd->unallocSpaceTable.extPosition),
- .partitionReferenceNum = i,
- };
-
- map->s_uspace.s_table =
- udf_iget(sb, loc);
- if (!map->s_uspace.s_table) {
- udf_debug("cannot load unallocSpaceTable (part %d)\n", i);
- return 1;
- }
- 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) {
- 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);
- 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, bitmap->s_extPosition);
- }
- }
- if (phd->partitionIntegrityTable.extLength)
- udf_debug("partitionIntegrityTable (part %d)\n", i);
- if (phd->freedSpaceTable.extLength) {
- kernel_lb_addr loc = {
- .logicalBlockNum = le32_to_cpu(phd->freedSpaceTable.extPosition),
- .partitionReferenceNum = i,
- };
-
- map->s_fspace.s_table =
- udf_iget(sb, loc);
- if (!map->s_fspace.s_table) {
- udf_debug("cannot load freedSpaceTable (part %d)\n", i);
- return 1;
- }
- 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) {
- 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);
- 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, bitmap->s_extPosition);
- }
- }
- }
+ map->s_partition_num, partitionNumber);
+ found = map->s_partition_num == partitionNumber;
+ if (found)
break;
- }
}
- if (i == sbi->s_partitions)
+
+ if (!found) {
udf_debug("Partition (%d) not found in partition map\n",
- le16_to_cpu(p->partitionNumber));
- 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);
+ partitionNumber);
+ return 0;
+ }
+
+ 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;
+
+ udf_debug("Partition (%d:%d type %x) starts at physical %d, "
+ "block length %d\n", partitionNumber, i,
+ map->s_partition_type, map->s_partition_root,
+ map->s_partition_len);
+
+ if (strcmp(p->partitionContents.ident, PD_PARTITION_CONTENTS_NSR02) &&
+ strcmp(p->partitionContents.ident, PD_PARTITION_CONTENTS_NSR03))
+ return 0;
+
+ phd = (struct partitionHeaderDesc *)p->partitionContentsUse;
+ if (phd->unallocSpaceTable.extLength) {
+ kernel_lb_addr loc = {
+ .logicalBlockNum = le32_to_cpu(
+ phd->unallocSpaceTable.extPosition),
+ .partitionReferenceNum = i,
+ };
+
+ map->s_uspace.s_table = udf_iget(sb, loc);
+ if (!map->s_uspace.s_table) {
+ udf_debug("cannot load unallocSpaceTable (part %d)\n",
+ i);
+ return 1;
+ }
+ 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) {
+ 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);
+ 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, bitmap->s_extPosition);
+ }
+ }
+
+ if (phd->partitionIntegrityTable.extLength)
+ udf_debug("partitionIntegrityTable (part %d)\n", i);
+
+ if (phd->freedSpaceTable.extLength) {
+ kernel_lb_addr loc = {
+ .logicalBlockNum = le32_to_cpu(
+ phd->freedSpaceTable.extPosition),
+ .partitionReferenceNum = i,
+ };
+
+ map->s_fspace.s_table = udf_iget(sb, loc);
+ if (!map->s_fspace.s_table) {
+ udf_debug("cannot load freedSpaceTable (part %d)\n", i);
+ return 1;
+ }
+
+ 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) {
+ 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);
+ 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, bitmap->s_extPosition);
+ }
+ }
+
return 0;
}

@@ -1253,19 +1243,17 @@ static int udf_load_logicalvol(struct super_block *sb, struct buffer_head *bh,
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;
- }
+ if (bh2 == NULL)
+ continue;
+
+ 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;
}
}
map->s_partition_func = udf_get_pblock_spar15;
@@ -1430,40 +1418,40 @@ static int udf_process_sequence(struct super_block *sb, long block,
brelse(bh);
}
for (i = 0; i < VDS_POS_LENGTH; i++) {
- if (vds[i].block) {
- bh = udf_read_tagged(sb, vds[i].block, vds[i].block,
- &ident);
-
- if (i == VDS_POS_PRIMARY_VOL_DESC) {
- udf_load_pvoldesc(sb, bh);
- } else if (i == VDS_POS_LOGICAL_VOL_DESC) {
- if (udf_load_logicalvol(sb, bh, fileset)) {
- brelse(bh);
- return 1;
- }
- } else if (i == VDS_POS_PARTITION_DESC) {
- struct buffer_head *bh2 = NULL;
- if (udf_load_partdesc(sb, bh)) {
- brelse(bh);
- return 1;
- }
- for (j = vds[i].block + 1;
- j < vds[VDS_POS_TERMINATING_DESC].block;
- j++) {
- bh2 = udf_read_tagged(sb, j, j, &ident);
- gd = (struct generic_desc *)bh2->b_data;
- if (ident == TAG_IDENT_PD)
- if (udf_load_partdesc(sb,
- bh2)) {
- brelse(bh);
- brelse(bh2);
- return 1;
- }
- brelse(bh2);
- }
+ if (!vds[i].block)
+ continue;
+
+ bh = udf_read_tagged(sb, vds[i].block, vds[i].block,
+ &ident);
+
+ if (i == VDS_POS_PRIMARY_VOL_DESC)
+ udf_load_pvoldesc(sb, bh);
+ else if (i == VDS_POS_LOGICAL_VOL_DESC) {
+ if (udf_load_logicalvol(sb, bh, fileset)) {
+ brelse(bh);
+ return 1;
+ }
+ } else if (i == VDS_POS_PARTITION_DESC) {
+ struct buffer_head *bh2 = NULL;
+ if (udf_load_partdesc(sb, bh)) {
+ brelse(bh);
+ return 1;
+ }
+ for (j = vds[i].block + 1;
+ j < vds[VDS_POS_TERMINATING_DESC].block;
+ j++) {
+ bh2 = udf_read_tagged(sb, j, j, &ident);
+ gd = (struct generic_desc *)bh2->b_data;
+ if (ident == TAG_IDENT_PD)
+ if (udf_load_partdesc(sb, bh2)) {
+ brelse(bh);
+ brelse(bh2);
+ return 1;
+ }
+ brelse(bh2);
}
- brelse(bh);
}
+ brelse(bh);
}

return 0;
@@ -1475,6 +1463,7 @@ static int udf_process_sequence(struct super_block *sb, long block,
static int udf_check_valid(struct super_block *sb, int novrs, int silent)
{
long block;
+ struct udf_sb_info *sbi;

if (novrs) {
udf_debug("Validity check skipped because of novrs option\n");
@@ -1482,18 +1471,16 @@ static int udf_check_valid(struct super_block *sb, int novrs, int silent)
}
/* Check that it is NSR02 compliant */
/* Process any "CD-ROM Volume Descriptor Set" (ECMA 167 2/8.3.1) */
- else {
- block = udf_vrs(sb, silent);
- if (block == -1) {
- struct udf_sb_info *sbi = UDF_SB(sb);
- udf_debug("Failed to read byte 32768. Assuming open "
- "disc. Skipping validity check\n");
- if (!sbi->s_last_block)
- sbi->s_last_block = udf_get_last_block(sb);
- return 0;
- } else
- return !block;
- }
+ block = udf_vrs(sb, silent);
+ if (block != -1)
+ return !block;
+
+ sbi = UDF_SB(sb);
+ udf_debug("Failed to read byte 32768. Assuming open "
+ "disc. Skipping validity check\n");
+ if (!sbi->s_last_block)
+ sbi->s_last_block = udf_get_last_block(sb);
+ return 0;
}

static int udf_load_partition(struct super_block *sb, kernel_lb_addr *fileset)
@@ -1512,6 +1499,7 @@ static int udf_load_partition(struct super_block *sb, kernel_lb_addr *fileset)
for (i = 0; i < ARRAY_SIZE(sbi->s_anchor); i++) {
if (!sbi->s_anchor[i])
continue;
+
bh = udf_read_tagged(sb, sbi->s_anchor[i], sbi->s_anchor[i],
&ident);
if (!bh)
@@ -1553,72 +1541,73 @@ static int udf_load_partition(struct super_block *sb, kernel_lb_addr *fileset)
for (i = 0; i < sbi->s_partitions; i++) {
kernel_lb_addr uninitialized_var(ino);
struct udf_part_map *map = &sbi->s_partmaps[i];
- switch (map->s_partition_type) {
- case UDF_VIRTUAL_MAP15:
- case UDF_VIRTUAL_MAP20:
- if (!sbi->s_last_block) {
- sbi->s_last_block = udf_get_last_block(sb);
- udf_find_anchor(sb);
- }

- if (!sbi->s_last_block) {
- udf_debug("Unable to determine Lastblock (For "
- "Virtual Partition)\n");
- return 1;
- }
+ if (map->s_partition_type != UDF_VIRTUAL_MAP15 &&
+ map->s_partition_type != UDF_VIRTUAL_MAP20)
+ continue;

- 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) {
- ino.partitionReferenceNum = j;
- ino.logicalBlockNum =
- sbi->s_last_block -
- map2->s_partition_root;
- break;
- }
+ if (!sbi->s_last_block) {
+ sbi->s_last_block = udf_get_last_block(sb);
+ udf_find_anchor(sb);
+ }
+
+ if (!sbi->s_last_block) {
+ udf_debug("Unable to determine Lastblock (For "
+ "Virtual Partition)\n");
+ return 1;
+ }
+
+ 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) {
+ ino.partitionReferenceNum = j;
+ ino.logicalBlockNum =
+ sbi->s_last_block -
+ map2->s_partition_root;
+ break;
}
+ }

- if (j == sbi->s_partitions)
- return 1;
+ if (j == sbi->s_partitions)
+ return 1;

- sbi->s_vat_inode = udf_iget(sb, ino);
- if (!sbi->s_vat_inode)
- return 1;
+ sbi->s_vat_inode = udf_iget(sb, ino);
+ if (!sbi->s_vat_inode)
+ return 1;

- if (map->s_partition_type == UDF_VIRTUAL_MAP15) {
- map->s_type_specific.s_virtual.s_start_offset =
- udf_ext0_offset(sbi->s_vat_inode);
- map->s_type_specific.s_virtual.s_num_entries =
- (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(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;
- brelse(bh);
- }
- map->s_partition_root = udf_get_pblock(sb, 0, i, 0);
- map->s_partition_len =
- sbi->s_partmaps[ino.partitionReferenceNum].
- s_partition_len;
+ if (map->s_partition_type == UDF_VIRTUAL_MAP15) {
+ map->s_type_specific.s_virtual.s_start_offset =
+ udf_ext0_offset(sbi->s_vat_inode);
+ map->s_type_specific.s_virtual.s_num_entries =
+ (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(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;
+ brelse(bh);
}
+ map->s_partition_root = udf_get_pblock(sb, 0, i, 0);
+ map->s_partition_len =
+ sbi->s_partmaps[ino.partitionReferenceNum].
+ s_partition_len;
}
return 0;
}
@@ -1627,26 +1616,26 @@ static void udf_open_lvid(struct super_block *sb)
{
struct udf_sb_info *sbi = UDF_SB(sb);
struct buffer_head *bh = sbi->s_lvid_bh;
- if (bh) {
- struct logicalVolIntegrityDesc *lvid =
- (struct logicalVolIntegrityDesc *)bh->b_data;
- struct logicalVolIntegrityDescImpUse *lvidiu =
- udf_sb_lvidiu(sbi);
+ struct logicalVolIntegrityDesc *lvid;
+ struct logicalVolIntegrityDescImpUse *lvidiu;
+ if (!bh)
+ return;

- lvidiu->impIdent.identSuffix[0] = UDF_OS_CLASS_UNIX;
- lvidiu->impIdent.identSuffix[1] = UDF_OS_ID_LINUX;
- udf_time_to_disk_stamp(&lvid->recordingDateAndTime,
- CURRENT_TIME);
- lvid->integrityType = LVID_INTEGRITY_TYPE_OPEN;
+ lvid = (struct logicalVolIntegrityDesc *)bh->b_data;
+ lvidiu = udf_sb_lvidiu(sbi);

- lvid->descTag.descCRC = cpu_to_le16(
- udf_crc((char *)lvid + sizeof(tag),
- le16_to_cpu(lvid->descTag.descCRCLength),
- 0));
+ lvidiu->impIdent.identSuffix[0] = UDF_OS_CLASS_UNIX;
+ lvidiu->impIdent.identSuffix[1] = UDF_OS_ID_LINUX;
+ udf_time_to_disk_stamp(&lvid->recordingDateAndTime,
+ CURRENT_TIME);
+ lvid->integrityType = LVID_INTEGRITY_TYPE_OPEN;

- lvid->descTag.tagChecksum = udf_tag_checksum(&lvid->descTag);
- mark_buffer_dirty(bh);
- }
+ 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)
@@ -1654,36 +1643,35 @@ static void udf_close_lvid(struct super_block *sb)
struct udf_sb_info *sbi = UDF_SB(sb);
struct buffer_head *bh = sbi->s_lvid_bh;
struct logicalVolIntegrityDesc *lvid;
+ struct logicalVolIntegrityDescImpUse *lvidiu;

if (!bh)
return;

lvid = (struct logicalVolIntegrityDesc *)bh->b_data;

- if (lvid->integrityType == LVID_INTEGRITY_TYPE_OPEN) {
- struct logicalVolIntegrityDescImpUse *lvidiu =
- udf_sb_lvidiu(sbi);
- lvidiu->impIdent.identSuffix[0] = UDF_OS_CLASS_UNIX;
- lvidiu->impIdent.identSuffix[1] = UDF_OS_ID_LINUX;
- 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);
- 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 = udf_tag_checksum(&lvid->descTag);
- mark_buffer_dirty(bh);
- }
+ if (lvid->integrityType != LVID_INTEGRITY_TYPE_OPEN)
+ return;
+
+ lvidiu = udf_sb_lvidiu(sbi);
+ lvidiu->impIdent.identSuffix[0] = UDF_OS_CLASS_UNIX;
+ lvidiu->impIdent.identSuffix[1] = UDF_OS_ID_LINUX;
+ 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);
+ 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 = udf_tag_checksum(&lvid->descTag);
+ mark_buffer_dirty(bh);
}

static void udf_sb_free_bitmap(struct udf_bitmap *bitmap)
--
1.5.3.7