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authorPekka Enberg <penberg@cs.helsinki.fi>2008-10-15 12:29:03 +0200
committerJan Kara <jack@suse.cz>2009-04-02 12:29:47 +0200
commit97e961fdbf32488b7386c9f1effa2bee97d47929 (patch)
treefa006f5e803e532c9781d4f5f6e34cf9d8382814 /fs/udf/balloc.c
parent5ca4e4be841e389d7d17833fef7be2359f290163 (diff)
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Fix the udf code not to pass structs on stack where possible.
Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi> Signed-off-by: Jan Kara <jack@suse.cz>
Diffstat (limited to 'fs/udf/balloc.c')
-rw-r--r--fs/udf/balloc.c59
1 files changed, 31 insertions, 28 deletions
diff --git a/fs/udf/balloc.c b/fs/udf/balloc.c
index 1237900e81b..94d876a6d19 100644
--- a/fs/udf/balloc.c
+++ b/fs/udf/balloc.c
@@ -92,7 +92,7 @@ static int read_block_bitmap(struct super_block *sb,
loc.logicalBlockNum = bitmap->s_extPosition;
loc.partitionReferenceNum = UDF_SB(sb)->s_partition;
- bh = udf_tread(sb, udf_get_lb_pblock(sb, loc, block));
+ bh = udf_tread(sb, udf_get_lb_pblock(sb, &loc, block));
if (!bh)
retval = -EIO;
@@ -156,11 +156,13 @@ static bool udf_add_free_space(struct udf_sb_info *sbi,
static void udf_bitmap_free_blocks(struct super_block *sb,
struct inode *inode,
struct udf_bitmap *bitmap,
- struct kernel_lb_addr bloc, uint32_t offset,
+ struct kernel_lb_addr *bloc,
+ uint32_t offset,
uint32_t count)
{
struct udf_sb_info *sbi = UDF_SB(sb);
struct buffer_head *bh = NULL;
+ struct udf_part_map *partmap;
unsigned long block;
unsigned long block_group;
unsigned long bit;
@@ -169,17 +171,17 @@ static void udf_bitmap_free_blocks(struct super_block *sb,
unsigned long overflow;
mutex_lock(&sbi->s_alloc_mutex);
- if (bloc.logicalBlockNum < 0 ||
- (bloc.logicalBlockNum + count) >
- sbi->s_partmaps[bloc.partitionReferenceNum].s_partition_len) {
+ partmap = &sbi->s_partmaps[bloc->partitionReferenceNum];
+ if (bloc->logicalBlockNum < 0 ||
+ (bloc->logicalBlockNum + count) >
+ partmap->s_partition_len) {
udf_debug("%d < %d || %d + %d > %d\n",
- bloc.logicalBlockNum, 0, bloc.logicalBlockNum, count,
- sbi->s_partmaps[bloc.partitionReferenceNum].
- s_partition_len);
+ bloc->logicalBlockNum, 0, bloc->logicalBlockNum,
+ count, partmap->s_partition_len);
goto error_return;
}
- block = bloc.logicalBlockNum + offset +
+ block = bloc->logicalBlockNum + offset +
(sizeof(struct spaceBitmapDesc) << 3);
do {
@@ -425,10 +427,12 @@ error_return:
static void udf_table_free_blocks(struct super_block *sb,
struct inode *inode,
struct inode *table,
- struct kernel_lb_addr bloc, uint32_t offset,
+ struct kernel_lb_addr *bloc,
+ uint32_t offset,
uint32_t 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;
@@ -438,13 +442,13 @@ static void udf_table_free_blocks(struct super_block *sb,
struct udf_inode_info *iinfo;
mutex_lock(&sbi->s_alloc_mutex);
- if (bloc.logicalBlockNum < 0 ||
- (bloc.logicalBlockNum + count) >
- sbi->s_partmaps[bloc.partitionReferenceNum].s_partition_len) {
+ partmap = &sbi->s_partmaps[bloc->partitionReferenceNum];
+ if (bloc->logicalBlockNum < 0 ||
+ (bloc->logicalBlockNum + count) >
+ partmap->s_partition_len) {
udf_debug("%d < %d || %d + %d > %d\n",
bloc.logicalBlockNum, 0, bloc.logicalBlockNum, count,
- sbi->s_partmaps[bloc.partitionReferenceNum].
- s_partition_len);
+ partmap->s_partition_len);
goto error_return;
}
@@ -456,8 +460,8 @@ static void udf_table_free_blocks(struct super_block *sb,
if (udf_add_free_space(sbi, sbi->s_partition, count))
mark_buffer_dirty(sbi->s_lvid_bh);
- start = bloc.logicalBlockNum + offset;
- end = bloc.logicalBlockNum + offset + count - 1;
+ start = bloc->logicalBlockNum + offset;
+ end = bloc->logicalBlockNum + offset + count - 1;
epos.offset = oepos.offset = sizeof(struct unallocSpaceEntry);
elen = 0;
@@ -483,7 +487,7 @@ static void udf_table_free_blocks(struct super_block *sb,
start += count;
count = 0;
}
- udf_write_aext(table, &oepos, eloc, elen, 1);
+ udf_write_aext(table, &oepos, &eloc, elen, 1);
} else if (eloc.logicalBlockNum == (end + 1)) {
if ((0x3FFFFFFF - elen) <
(count << sb->s_blocksize_bits)) {
@@ -502,7 +506,7 @@ static void udf_table_free_blocks(struct super_block *sb,
end -= count;
count = 0;
}
- udf_write_aext(table, &oepos, eloc, elen, 1);
+ udf_write_aext(table, &oepos, &eloc, elen, 1);
}
if (epos.bh != oepos.bh) {
@@ -563,7 +567,7 @@ static void udf_table_free_blocks(struct super_block *sb,
elen -= sb->s_blocksize;
epos.bh = udf_tread(sb,
- udf_get_lb_pblock(sb, epos.block, 0));
+ udf_get_lb_pblock(sb, &epos.block, 0));
if (!epos.bh) {
brelse(oepos.bh);
goto error_return;
@@ -635,7 +639,7 @@ static void udf_table_free_blocks(struct super_block *sb,
/* It's possible that stealing the block emptied the extent */
if (elen) {
- udf_write_aext(table, &epos, eloc, elen, 1);
+ udf_write_aext(table, &epos, &eloc, elen, 1);
if (!epos.bh) {
iinfo->i_lenAlloc += adsize;
@@ -707,7 +711,7 @@ static int udf_table_prealloc_blocks(struct super_block *sb,
alloc_count = block_count;
eloc.logicalBlockNum += alloc_count;
elen -= (alloc_count << sb->s_blocksize_bits);
- udf_write_aext(table, &epos, eloc,
+ udf_write_aext(table, &epos, &eloc,
(etype << 30) | elen, 1);
} else
udf_delete_aext(table, epos, eloc,
@@ -814,7 +818,7 @@ static int udf_table_new_block(struct super_block *sb,
}
if (goal_elen)
- udf_write_aext(table, &goal_epos, goal_eloc, goal_elen, 1);
+ udf_write_aext(table, &goal_epos, &goal_eloc, goal_elen, 1);
else
udf_delete_aext(table, goal_epos, goal_eloc, goal_elen);
brelse(goal_epos.bh);
@@ -828,12 +832,11 @@ static int udf_table_new_block(struct super_block *sb,
return newblock;
}
-inline void udf_free_blocks(struct super_block *sb,
- struct inode *inode,
- struct kernel_lb_addr bloc, uint32_t offset,
- uint32_t count)
+void udf_free_blocks(struct super_block *sb, struct inode *inode,
+ struct kernel_lb_addr *bloc, uint32_t offset,
+ uint32_t count)
{
- uint16_t partition = bloc.partitionReferenceNum;
+ uint16_t partition = bloc->partitionReferenceNum;
struct udf_part_map *map = &UDF_SB(sb)->s_partmaps[partition];
if (map->s_partition_flags & UDF_PART_FLAG_UNALLOC_BITMAP) {