Signed-off-by: Steve Kenton <skenton@xxxxxx>
---
V2: fix sector_t variable print format
V3: Add long long cast for sector_t 32/64 bit
fs/udf/balloc.c | 334 +++++++++++++++++++++++++++++++++++++++-----------------
1 file changed, 234 insertions(+), 100 deletions(-)
diff --git a/fs/udf/balloc.c b/fs/udf/balloc.c
index e0fd65f..f010caa 100644
--- a/fs/udf/balloc.c
+++ b/fs/udf/balloc.c
@@ -4,6 +4,17 @@
* PURPOSE
* Block allocation handling routines for the OSTA-UDF(tm) filesystem.
*
+ * Note, ECMA-167 block numbers are unsigned 32-bit values and UDF extents
+ * cannot exceed an unsigned 30-bit byte length so both were traditionally
+ * unsigned 32-bit types despite the use of block_count << bits_per_block
+ * to compute extent_length, which might otherwise risk overflow. But,
+ * UDF filesystems can consist of up to 64K partitions on multiple volumes
+ * and files can have multiple extents resulting in terrabyte+ lengths.
+ * So, use the VFS preferred 64-bit sector_t and loff_t types for block
+ * numbers and file offsets respectively and int for UDF partition number
+ * and extent type as well as extent byte lengths and extent block counts.
+ * All together this makes the UDF code feel similar to other filesystems.
+ *
* COPYRIGHT
* This file is distributed under the terms of the GNU General Public
* License (GPL). Copies of the GPL can be obtained from:
@@ -31,8 +42,12 @@
#define udf_test_bit test_bit_le
#define udf_find_next_one_bit find_next_bit_le
+/*
+ * Read the bitmap from the media - udf_tread() wraps fixed/variable media
+ * to deal with certain peculiar antique optical cartridge devices. Still needed ???
+ */
static int read_block_bitmap(struct super_block *sb,
- struct udf_bitmap *bitmap, unsigned int block,
+ struct udf_bitmap *bitmap, sector_t block,
unsigned long bitmap_nr)
{
struct buffer_head *bh = NULL;
@@ -89,7 +104,16 @@ static inline int load_block_bitmap(struct super_block *sb,
return slot;
}
-static void udf_add_free_space(struct super_block *sb, u16 partition, u32 cnt)
+/**
+ * udf_update_free_space() - Adjust the partition free space available total
+ * @sb: Super block of UDF filesystem mount
+ * @partition: UDF partition to use
+ * @count: Number of blocks to add/subtract
+ *
+ * All the blocks are in the same extent which limits the maximum block count
+ * This is just the on-media book keeping for allocate/free performed elsewhere
+ */
+static void udf_update_free_space(struct super_block *sb, int partition, int count)
{
struct udf_sb_info *sbi = UDF_SB(sb);
struct logicalVolIntegrityDesc *lvid;
@@ -98,20 +122,34 @@ static void udf_add_free_space(struct super_block *sb, u16 partition, u32 cnt)
return;
lvid = (struct logicalVolIntegrityDesc *)sbi->s_lvid_bh->b_data;
- le32_add_cpu(&lvid->freeSpaceTable[partition], cnt);
+ le32_add_cpu(&lvid->freeSpaceTable[partition], count);
udf_updated_lvid(sb);
}
+/*
+ * Unallocated/freespace bitmap implementation routines
+ */
+
+/**
+ * udf_bitmap_free_blocks() - Free extent blocks
+ * @sb: Super block of UDF filesystem mount
+ * @bitmap: Space bitmap
+ * @eloc: Extent location/length descriptor
+ * @offset: Block offset from the start of the extent
+ * @count: Number of blocks to free
+ *
+ * All the blocks are in the same extent which limits the maximum block count
+ */
static void udf_bitmap_free_blocks(struct super_block *sb,
struct udf_bitmap *bitmap,
- struct kernel_lb_addr *bloc,
- uint32_t offset,
- uint32_t count)
+ struct kernel_lb_addr *eloc,
+ sector_t offset,
+ int count)
{
struct udf_sb_info *sbi = UDF_SB(sb);
struct buffer_head *bh = NULL;
struct udf_part_map *partmap;
- unsigned long block;
+ sector_t block;
unsigned long block_group;
unsigned long bit;
unsigned long i;
@@ -119,17 +157,17 @@ static void udf_bitmap_free_blocks(struct super_block *sb,
unsigned long overflow;
mutex_lock(&sbi->s_alloc_mutex);
- partmap = &sbi->s_partmaps[bloc->partitionReferenceNum];
- if (bloc->logicalBlockNum + count < count ||
- (bloc->logicalBlockNum + count) > partmap->s_partition_len) {
+ partmap = &sbi->s_partmaps[eloc->partitionReferenceNum];
+ if (eloc->logicalBlockNum + count < count ||
+ (eloc->logicalBlockNum + count) > partmap->s_partition_len) {
udf_debug("%d < %d || %d + %d > %d\n",
- bloc->logicalBlockNum, 0,
- bloc->logicalBlockNum, count,
+ eloc->logicalBlockNum, 0,
+ eloc->logicalBlockNum, count,
partmap->s_partition_len);
goto error_return;
}
- block = bloc->logicalBlockNum + offset +
+ block = eloc->logicalBlockNum + offset +
(sizeof(struct spaceBitmapDesc) << 3);
do {
@@ -156,7 +194,7 @@ static void udf_bitmap_free_blocks(struct super_block *sb,
((char *)bh->b_data)[(bit + i) >> 3]);
}
}
- udf_add_free_space(sb, sbi->s_partition, count);
+ udf_update_free_space(sb, sbi->s_partition, count);
mark_buffer_dirty(bh);
if (overflow) {
block += count;
@@ -168,25 +206,38 @@ static void udf_bitmap_free_blocks(struct super_block *sb,
mutex_unlock(&sbi->s_alloc_mutex);
}
+/**
+ * udf_bitmap_prealloc_blocks() - Allocate partition blocks
+ * @sb: Super block of UDF filesystem mount
+ * @bitmap: Space bitmap
+ * @partition: UDF partition to use
+ * @first_block: Start of a free, or for write once media unrecorded, extent
+ * @count: Maximum number of blocks to try and allocate
+ *
+ * All the blocks are in the same extent which limits the maximum block count
+ *
+ * Return: Number of blocks allocated on success or 0 on failure
+ */
static int udf_bitmap_prealloc_blocks(struct super_block *sb,
struct udf_bitmap *bitmap,
- uint16_t partition, uint32_t first_block,
- uint32_t block_count)
+ int partition, sector_t first_block,
+ int count)
{
struct udf_sb_info *sbi = UDF_SB(sb);
int alloc_count = 0;
- int bit, block, block_group, group_start;
+ sector_t block;
+ int bit, block_group, group_start;
int nr_groups, bitmap_nr;
struct buffer_head *bh;
- __u32 part_len;
+ sector_t part_len;
mutex_lock(&sbi->s_alloc_mutex);
part_len = sbi->s_partmaps[partition].s_partition_len;
if (first_block >= part_len)
goto out;
- if (first_block + block_count > part_len)
- block_count = part_len - first_block;
+ if (first_block + count > part_len)
+ count = part_len - first_block;
do {
nr_groups = udf_compute_nr_groups(sb, partition);
@@ -201,33 +252,43 @@ static int udf_bitmap_prealloc_blocks(struct super_block *sb,
bit = block % (sb->s_blocksize << 3);
- while (bit < (sb->s_blocksize << 3) && block_count > 0) {
+ while (bit < (sb->s_blocksize << 3) && count > 0) {
if (!udf_clear_bit(bit, bh->b_data))
goto out;
- block_count--;
+ count--;
alloc_count++;
bit++;
block++;
}
mark_buffer_dirty(bh);
- } while (block_count > 0);
+ } while (count > 0);
out:
- udf_add_free_space(sb, partition, -alloc_count);
+ udf_update_free_space(sb, partition, -alloc_count);
mutex_unlock(&sbi->s_alloc_mutex);
return alloc_count;
}
-static int udf_bitmap_new_block(struct super_block *sb,
- struct udf_bitmap *bitmap, uint16_t partition,
- uint32_t goal, int *err)
+/**
+ * udf_bitmap_new_block() - Allocate a partition block close to goal
+ * @sb: Super block of UDF filesystem mount
+ * @bitmap: Space bitmap
+ * @partition: UDF partition to use
+ * @goal: The block on the partition to which proximity is desired
+ * @err: If not successful this is the error that caused the failure
+ *
+ * Return: Partition block number on success or 0 and set *err on failure
+ */
+static sector_t udf_bitmap_new_block(struct super_block *sb,
+ struct udf_bitmap *bitmap, int partition,
+ sector_t goal, int *err)
{
struct udf_sb_info *sbi = UDF_SB(sb);
- int newbit, bit = 0, block, block_group, group_start;
+ int newbit, bit = 0, block_group, group_start;
int end_goal, nr_groups, bitmap_nr, i;
struct buffer_head *bh = NULL;
char *ptr;
- int newblock = 0;
+ sector_t block, newblock = 0;
*err = -ENOSPC;
mutex_lock(&sbi->s_alloc_mutex);
@@ -332,7 +393,7 @@ static int udf_bitmap_new_block(struct super_block *sb,
mark_buffer_dirty(bh);
- udf_add_free_space(sb, partition, -1);
+ udf_update_free_space(sb, partition, -1);
mutex_unlock(&sbi->s_alloc_mutex);
*err = 0;
return newblock;
@@ -343,37 +404,51 @@ static int udf_bitmap_new_block(struct super_block *sb,
return 0;
}
+/*
+ * Unallocated/freespace table implementation routines
+ */
+
+/**
+ * udf_table_free_blocks() - Free extent blocks
+ * @sb: Super block of UDF filesystem mount
+ * @bitmap: Space table
+ * @eloc: Extent location/length descriptor
+ * @offset: Block offset from the start of the extent
+ * @count: Number of blocks to free
+ *
+ * All the blocks are in the same extent which limits the maximum block count
+ */
static void udf_table_free_blocks(struct super_block *sb,
struct inode *table,
- struct kernel_lb_addr *bloc,
- uint32_t offset,
- uint32_t count)
+ struct kernel_lb_addr *eloc,
+ sector_t offset,
+ int count)
{
struct udf_sb_info *sbi = UDF_SB(sb);
struct udf_part_map *partmap;
- uint32_t start, end;
- uint32_t elen;
- struct kernel_lb_addr eloc;
+ sector_t start, end;
+ int elen;
+ struct kernel_lb_addr bloc;
struct extent_position oepos, epos;
- int8_t etype;
+ int etype;
struct udf_inode_info *iinfo;
mutex_lock(&sbi->s_alloc_mutex);
- partmap = &sbi->s_partmaps[bloc->partitionReferenceNum];
- if (bloc->logicalBlockNum + count < count ||
- (bloc->logicalBlockNum + count) > partmap->s_partition_len) {
+ partmap = &sbi->s_partmaps[eloc->partitionReferenceNum];
+ if (eloc->logicalBlockNum + count < count ||
+ (eloc->logicalBlockNum + count) > partmap->s_partition_len) {
udf_debug("%d < %d || %d + %d > %d\n",
- bloc->logicalBlockNum, 0,
- bloc->logicalBlockNum, count,
+ eloc->logicalBlockNum, 0,
+ eloc->logicalBlockNum, count,
partmap->s_partition_len);
goto error_return;
}
iinfo = UDF_I(table);
- udf_add_free_space(sb, sbi->s_partition, count);
+ udf_update_free_space(sb, sbi->s_partition, count);
- start = bloc->logicalBlockNum + offset;
- end = bloc->logicalBlockNum + offset + count - 1;
+ start = eloc->logicalBlockNum + offset;
+ end = eloc->logicalBlockNum + offset + count - 1;
epos.offset = oepos.offset = sizeof(struct unallocSpaceEntry);
elen = 0;
@@ -381,12 +456,12 @@ static void udf_table_free_blocks(struct super_block *sb,
epos.bh = oepos.bh = NULL;
while (count &&
- (etype = udf_next_aext(table, &epos, &eloc, &elen, 1)) != -1) {
- if (((eloc.logicalBlockNum +
+ (etype = udf_next_aext(table, &epos, &bloc, &elen, 1)) != -1) {
+ if (((bloc.logicalBlockNum +
(elen >> sb->s_blocksize_bits)) == start)) {
if ((0x3FFFFFFF - elen) <
(count << sb->s_blocksize_bits)) {
- uint32_t tmp = ((0x3FFFFFFF - elen) >>
+ int tmp = ((0x3FFFFFFF - elen) >>
sb->s_blocksize_bits);
count -= tmp;
start += tmp;
@@ -399,26 +474,26 @@ static void udf_table_free_blocks(struct super_block *sb,
start += count;
count = 0;
}
- udf_write_aext(table, &oepos, &eloc, elen, 1);
- } else if (eloc.logicalBlockNum == (end + 1)) {
+ udf_write_aext(table, &oepos, &bloc, elen, 1);
+ } else if (bloc.logicalBlockNum == (end + 1)) {
if ((0x3FFFFFFF - elen) <
(count << sb->s_blocksize_bits)) {
- uint32_t tmp = ((0x3FFFFFFF - elen) >>
+ int tmp = ((0x3FFFFFFF - elen) >>
sb->s_blocksize_bits);
count -= tmp;
end -= tmp;
- eloc.logicalBlockNum -= tmp;
+ bloc.logicalBlockNum -= tmp;
elen = (etype << 30) |
(0x40000000 - sb->s_blocksize);
} else {
- eloc.logicalBlockNum = start;
+ bloc.logicalBlockNum = start;
elen = (etype << 30) |
(elen +
(count << sb->s_blocksize_bits));
end -= count;
count = 0;
}
- udf_write_aext(table, &oepos, &eloc, elen, 1);
+ udf_write_aext(table, &oepos, &bloc, elen, 1);
}
if (epos.bh != oepos.bh) {
@@ -448,7 +523,7 @@ static void udf_table_free_blocks(struct super_block *sb,
int adsize;
- eloc.logicalBlockNum = start;
+ bloc.logicalBlockNum = start;
elen = EXT_RECORDED_ALLOCATED |
(count << sb->s_blocksize_bits);
@@ -464,16 +539,16 @@ static void udf_table_free_blocks(struct super_block *sb,
if (epos.offset + (2 * adsize) > sb->s_blocksize) {
/* Steal a block from the extent being free'd */
- udf_setup_indirect_aext(table, eloc.logicalBlockNum,
+ udf_setup_indirect_aext(table, bloc.logicalBlockNum,
&epos);
- eloc.logicalBlockNum++;
+ bloc.logicalBlockNum++;
elen -= sb->s_blocksize;
}
/* It's possible that stealing the block emptied the extent */
if (elen)
- __udf_add_aext(table, &epos, &eloc, elen, 1);
+ __udf_add_aext(table, &epos, &bloc, elen, 1);
}
brelse(epos.bh);
@@ -484,16 +559,28 @@ static void udf_table_free_blocks(struct super_block *sb,
return;
}
+/**
+ * udf_table_prealloc_blocks() - Allocate partition blocks
+ * @sb: Super block of UDF filesystem mount
+ * @bitmap: Space table
+ * @partition: UDF partition to use
+ * @first_block: Start of a free, or for write once media unrecorded, extent
+ * @count: Maximum number of blocks to try and allocate
+ *
+ * All the blocks are in the same extent which limits the maximum block count
+ *
+ * Return: Number of blocks allocated on success or 0 on failure
+ */
static int udf_table_prealloc_blocks(struct super_block *sb,
- struct inode *table, uint16_t partition,
- uint32_t first_block, uint32_t block_count)
+ struct inode *table, int partition,
+ sector_t first_block, int count)
{
struct udf_sb_info *sbi = UDF_SB(sb);
int alloc_count = 0;
- uint32_t elen, adsize;
+ int elen, adsize;
struct kernel_lb_addr eloc;
struct extent_position epos;
- int8_t etype = -1;
+ int etype = -1;
struct udf_inode_info *iinfo;
if (first_block >= sbi->s_partmaps[partition].s_partition_len)
@@ -515,8 +602,8 @@ static int udf_table_prealloc_blocks(struct super_block *sb,
while (first_block != eloc.logicalBlockNum &&
(etype = udf_next_aext(table, &epos, &eloc, &elen, 1)) != -1) {
- udf_debug("eloc=%d, elen=%d, first_block=%d\n",
- eloc.logicalBlockNum, elen, first_block);
+ udf_debug("eloc=%d, elen=%d, first_block=%llu\n",
+ eloc.logicalBlockNum, elen, (unsigned long long)first_block);
; /* empty loop body */
}
@@ -524,8 +611,8 @@ static int udf_table_prealloc_blocks(struct super_block *sb,
epos.offset -= adsize;
alloc_count = (elen >> sb->s_blocksize_bits);
- if (alloc_count > block_count) {
- alloc_count = block_count;
+ if (alloc_count > count) {
+ alloc_count = count;
eloc.logicalBlockNum += alloc_count;
elen -= (alloc_count << sb->s_blocksize_bits);
udf_write_aext(table, &epos, &eloc,
@@ -540,22 +627,32 @@ static int udf_table_prealloc_blocks(struct super_block *sb,
brelse(epos.bh);
if (alloc_count)
- udf_add_free_space(sb, partition, -alloc_count);
+ udf_update_free_space(sb, partition, -alloc_count);
mutex_unlock(&sbi->s_alloc_mutex);
return alloc_count;
}
-static int udf_table_new_block(struct super_block *sb,
- struct inode *table, uint16_t partition,
- uint32_t goal, int *err)
+/**
+ * udf_table_new_block() - Allocate a partition block close to goal
+ * @sb: Super block of UDF filesystem mount
+ * @bitmap: Space table
+ * @partition: UDF partition to use
+ * @goal: The block on the partition to which proximity is desired
+ * @err: If not successful this is the error that caused the failure
+ *
+ * Return: Partition block number on success or 0 and set *err on failure
+ */
+static sector_t udf_table_new_block(struct super_block *sb,
+ struct inode *table, int partition,
+ sector_t goal, int *err)
{
struct udf_sb_info *sbi = UDF_SB(sb);
- uint32_t spread = 0xFFFFFFFF, nspread = 0xFFFFFFFF;
- uint32_t newblock = 0, adsize;
- uint32_t elen, goal_elen = 0;
+ unsigned int spread = 0xFFFFFFFF, nspread = 0xFFFFFFFF;
+ sector_t newblock = 0;
+ int elen, adsize, goal_elen = 0;
struct kernel_lb_addr eloc, uninitialized_var(goal_eloc);
struct extent_position epos, goal_epos;
- int8_t etype;
+ int etype;
struct udf_inode_info *iinfo = UDF_I(table);
*err = -ENOSPC;
@@ -572,8 +669,8 @@ static int udf_table_new_block(struct super_block *sb,
goal = 0;
/* We search for the closest matching block to goal. If we find
- a exact hit, we stop. Otherwise we keep going till we run out
- of extents. We store the buffer_head, bloc, and extoffset
+ an exact hit, we stop. Otherwise we keep going till we run out
+ of extents. We store the buffer_head, eloc, and offset
of the current closest match and use that when we are done.
*/
epos.offset = sizeof(struct unallocSpaceEntry);
@@ -630,44 +727,68 @@ static int udf_table_new_block(struct super_block *sb,
udf_delete_aext(table, goal_epos, goal_eloc, goal_elen);
brelse(goal_epos.bh);
- udf_add_free_space(sb, partition, -1);
+ udf_update_free_space(sb, partition, -1);
mutex_unlock(&sbi->s_alloc_mutex);
*err = 0;
return newblock;
}
+/**
+ * udf_free_blocks() - Free extent blocks
+ * @sb: Super block of UDF filesystem mount
+ * @inode: If not NULL decrease the byte count allocated to the inode
+ * @eloc: Extent location/length descriptor
+ * @offset: Block offset from the start of the extent
+ * @count: Number of blocks to free
+ *
+ * All the blocks are in the same extent which limits the maximum block count
+ * Use the media appropriate bitmap/table routine for the sb and partition
+ */
void udf_free_blocks(struct super_block *sb, struct inode *inode,
- struct kernel_lb_addr *bloc, uint32_t offset,
- uint32_t count)
+ struct kernel_lb_addr *eloc, sector_t offset,
+ int count)
{
- uint16_t partition = bloc->partitionReferenceNum;
+ int partition = eloc->partitionReferenceNum;
struct udf_part_map *map = &UDF_SB(sb)->s_partmaps[partition];
if (map->s_partition_flags & UDF_PART_FLAG_UNALLOC_BITMAP) {
udf_bitmap_free_blocks(sb, map->s_uspace.s_bitmap,
- bloc, offset, count);
+ eloc, offset, count);
} else if (map->s_partition_flags & UDF_PART_FLAG_UNALLOC_TABLE) {
udf_table_free_blocks(sb, map->s_uspace.s_table,
- bloc, offset, count);
+ eloc, offset, count);
} else if (map->s_partition_flags & UDF_PART_FLAG_FREED_BITMAP) {
udf_bitmap_free_blocks(sb, map->s_fspace.s_bitmap,
- bloc, offset, count);
+ eloc, offset, count);
} else if (map->s_partition_flags & UDF_PART_FLAG_FREED_TABLE) {
udf_table_free_blocks(sb, map->s_fspace.s_table,
- bloc, offset, count);
+ eloc, offset, count);
}
if (inode) {
inode_sub_bytes(inode,
- ((sector_t)count) << sb->s_blocksize_bits);
+ ((loff_t)count) << sb->s_blocksize_bits);
}
}
+/**
+ * udf_prealloc_blocks() - Allocate partition blocks and reserve them
+ * @sb: Super block of UDF filesystem mount
+ * @inode: If not NULL increase the byte count allocated to the inode
+ * @partition: UDF partition to use
+ * @first_block: Start of a free, or for write once media unrecorded, extent
+ * @count: Maximum number of blocks to try and allocate
+ *
+ * All the blocks are in the same extent which limits the maximum block count
+ * Use the media appropriate bitmap/table routine for the sb and partition
+ *
+ * Return: Number of blocks allocated on success or 0 on failure
+ */
inline int udf_prealloc_blocks(struct super_block *sb,
struct inode *inode,
- uint16_t partition, uint32_t first_block,
- uint32_t block_count)
+ int partition, sector_t first_block,
+ int count)
{
struct udf_part_map *map = &UDF_SB(sb)->s_partmaps[partition];
int allocated;
@@ -676,22 +797,22 @@ inline int udf_prealloc_blocks(struct super_block *sb,
allocated = udf_bitmap_prealloc_blocks(sb,
map->s_uspace.s_bitmap,
partition, first_block,
- block_count);
+ count);
else if (map->s_partition_flags & UDF_PART_FLAG_UNALLOC_TABLE)
allocated = udf_table_prealloc_blocks(sb,
map->s_uspace.s_table,
partition, first_block,
- block_count);
+ count);
else if (map->s_partition_flags & UDF_PART_FLAG_FREED_BITMAP)
allocated = udf_bitmap_prealloc_blocks(sb,
map->s_fspace.s_bitmap,
partition, first_block,
- block_count);
+ count);
else if (map->s_partition_flags & UDF_PART_FLAG_FREED_TABLE)
allocated = udf_table_prealloc_blocks(sb,
map->s_fspace.s_table,
partition, first_block,
- block_count);
+ count);
else
return 0;
@@ -700,34 +821,47 @@ inline int udf_prealloc_blocks(struct super_block *sb,
return allocated;
}
-inline int udf_new_block(struct super_block *sb,
+/**
+ * udf_new_block() - Allocate a partition block close to goal
+ * @sb: Super block of UDF filesystem mount
+ * @inode: If not NULL increase the byte count allocated to the inode
+ * @partition: UDF partition to use
+ * @goal: The block on the partition to which proximity is desired
+ * @err: If not successful this is the error that caused the failure
+ *
+ * Use the media appropriate bitmap/table routine for the sb and partition
+ * Reduce latency for things like directory expansion - Maybe "near" instead of "new"?
+ *
+ * Return: Partition block number on success or 0 and set *err on failure
+ */
+inline sector_t udf_new_block(struct super_block *sb,
struct inode *inode,
- uint16_t partition, uint32_t goal, int *err)
+ int partition, sector_t goal, int *err)
{
struct udf_part_map *map = &UDF_SB(sb)->s_partmaps[partition];
- int block;
+ sector_t newblock;
if (map->s_partition_flags & UDF_PART_FLAG_UNALLOC_BITMAP)
- block = udf_bitmap_new_block(sb,
+ newblock = udf_bitmap_new_block(sb,
map->s_uspace.s_bitmap,
partition, goal, err);
else if (map->s_partition_flags & UDF_PART_FLAG_UNALLOC_TABLE)
- block = udf_table_new_block(sb,
+ newblock = udf_table_new_block(sb,
map->s_uspace.s_table,
partition, goal, err);
else if (map->s_partition_flags & UDF_PART_FLAG_FREED_BITMAP)
- block = udf_bitmap_new_block(sb,
+ newblock = udf_bitmap_new_block(sb,
map->s_fspace.s_bitmap,
partition, goal, err);
else if (map->s_partition_flags & UDF_PART_FLAG_FREED_TABLE)
- block = udf_table_new_block(sb,
+ newblock = udf_table_new_block(sb,
map->s_fspace.s_table,
partition, goal, err);
else {
*err = -EIO;
return 0;
}
- if (inode && block)
+ if (inode && newblock)
inode_add_bytes(inode, sb->s_blocksize);
- return block;
+ return newblock;
}
--
2.9.2.277.g2949358
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