From: marcin.slusarz@gmail.com
To: LKML <linux-kernel@vger.kernel.org>
Cc: Ben Fennema <bfennema@falcon.csc.calpoly.edu>,
Jan Kara <jack@suse.cz>, Christoph Hellwig <hch@infradead.org>,
Marcin Slusarz <marcin.slusarz@gmail.com>
Subject: [PATCH 5/6] udf: convert some macros to functions
Date: Mon, 24 Dec 2007 01:10:21 +0100 [thread overview]
Message-ID: <1198455022-27674-6-git-send-email-marcin.slusarz@gmail.com> (raw)
In-Reply-To: <1198455022-27674-1-git-send-email-marcin.slusarz@gmail.com>
convert UDF_SB_ALLOC_BITMAP macro to udf_sb_alloc_bitmap function
convert UDF_SB_FREE_BITMAP macro to udf_sb_free_bitmap function
Signed-off-by: Marcin Slusarz <marcin.slusarz@gmail.com>
CC: Ben Fennema <bfennema@falcon.csc.calpoly.edu>
CC: Jan Kara <jack@suse.cz>
CC: Christoph Hellwig <hch@infradead.org>
---
fs/udf/super.c | 49 +++++++++++++++++++++++++++++++++++++++++++------
fs/udf/udf_sb.h | 38 --------------------------------------
2 files changed, 43 insertions(+), 44 deletions(-)
diff --git a/fs/udf/super.c b/fs/udf/super.c
index f138309..dc09c2d 100644
--- a/fs/udf/super.c
+++ b/fs/udf/super.c
@@ -932,6 +932,27 @@ static void udf_load_fileset(struct super_block *sb, struct buffer_head *bh,
root->logicalBlockNum, root->partitionReferenceNum);
}
+static struct udf_bitmap *udf_sb_alloc_bitmap(struct super_block *sb, __u32 index)
+{
+ struct udf_part_map *map = &UDF_SB(sb)->s_partmaps[index];
+ int nr_groups = (map->s_partition_len + (sizeof(struct spaceBitmapDesc) << 3) +
+ (sb->s_blocksize * 8) - 1) / (sb->s_blocksize * 8);
+ int size = sizeof(struct udf_bitmap) + (sizeof(struct buffer_head *) * nr_groups);
+ struct udf_bitmap *bitmap;
+
+ if (size <= PAGE_SIZE)
+ bitmap = kmalloc(size, GFP_KERNEL);
+ else
+ bitmap = vmalloc(size);
+ if (bitmap != NULL) {
+ memset(bitmap, 0x00, size);
+ bitmap->s_block_bitmap = (struct buffer_head **)(bitmap + 1);
+ bitmap->s_nr_groups = nr_groups;
+ } else
+ udf_error(sb, __FUNCTION__, "Unable to allocate space for bitmap and %d buffer_head pointers", nr_groups);
+ return bitmap;
+}
+
static int udf_load_partdesc(struct super_block *sb, struct buffer_head *bh)
{
struct partitionDesc *p;
@@ -982,7 +1003,7 @@ static int udf_load_partdesc(struct super_block *sb, struct buffer_head *bh)
i, map->s_uspace.s_table->i_ino);
}
if (phd->unallocSpaceBitmap.extLength) {
- UDF_SB_ALLOC_BITMAP(sb, i, s_uspace);
+ 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 =
le32_to_cpu(phd->unallocSpaceBitmap.extLength);
@@ -1012,7 +1033,7 @@ static int udf_load_partdesc(struct super_block *sb, struct buffer_head *bh)
i, map->s_fspace.s_table->i_ino);
}
if (phd->freedSpaceBitmap.extLength) {
- UDF_SB_ALLOC_BITMAP(sb, i, s_fspace);
+ 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 =
le32_to_cpu(phd->freedSpaceBitmap.extLength);
@@ -1501,6 +1522,22 @@ static void udf_close_lvid(struct super_block *sb)
}
}
+static void udf_sb_free_bitmap(struct udf_bitmap *bitmap)
+{
+ int i;
+ int nr_groups = bitmap->s_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])
+ brelse(bitmap->s_block_bitmap[i]);
+
+ if (size <= PAGE_SIZE)
+ kfree(bitmap);
+ else
+ vfree(bitmap);
+}
+
/*
* udf_read_super
*
@@ -1686,9 +1723,9 @@ error_out:
if (map->s_partition_flags & UDF_PART_FLAG_FREED_TABLE)
iput(map->s_fspace.s_table);
if (map->s_partition_flags & UDF_PART_FLAG_UNALLOC_BITMAP)
- UDF_SB_FREE_BITMAP(sb, sbi->s_partition, s_uspace);
+ udf_sb_free_bitmap(map->s_uspace.s_bitmap);
if (map->s_partition_flags & UDF_PART_FLAG_FREED_BITMAP)
- UDF_SB_FREE_BITMAP(sb, sbi->s_partition, s_fspace);
+ 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]);
@@ -1764,9 +1801,9 @@ static void udf_put_super(struct super_block *sb)
if (map->s_partition_flags & UDF_PART_FLAG_FREED_TABLE)
iput(map->s_fspace.s_table);
if (map->s_partition_flags & UDF_PART_FLAG_UNALLOC_BITMAP)
- UDF_SB_FREE_BITMAP(sb, sbi->s_partition, s_uspace);
+ udf_sb_free_bitmap(map->s_uspace.s_bitmap);
if (map->s_partition_flags & UDF_PART_FLAG_FREED_BITMAP)
- UDF_SB_FREE_BITMAP(sb, sbi->s_partition, s_fspace);
+ 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]);
diff --git a/fs/udf/udf_sb.h b/fs/udf/udf_sb.h
index 4d3bd77..2c05f82 100644
--- a/fs/udf/udf_sb.h
+++ b/fs/udf/udf_sb.h
@@ -43,46 +43,8 @@ static inline struct udf_sb_info *UDF_SB(struct super_block *sb)
struct logicalVolIntegrityDescImpUse *udf_sb_lvidiu(struct udf_sb_info *sbi);
-#define UDF_SB_ALLOC_BITMAP(X,Y,Z)\
-{\
- struct udf_sb_info *sbi = UDF_SB(X);\
- int nr_groups = ((sbi->s_partmaps[(Y)].s_partition_len + (sizeof(struct spaceBitmapDesc) << 3) +\
- ((X)->s_blocksize * 8) - 1) / ((X)->s_blocksize * 8));\
- int size = sizeof(struct udf_bitmap) + (sizeof(struct buffer_head *) * nr_groups);\
- if (size <= PAGE_SIZE)\
- sbi->s_partmaps[(Y)].Z.s_bitmap = kmalloc(size, GFP_KERNEL);\
- else\
- sbi->s_partmaps[(Y)].Z.s_bitmap = vmalloc(size);\
- if (sbi->s_partmaps[(Y)].Z.s_bitmap != NULL) {\
- memset(sbi->s_partmaps[(Y)].Z.s_bitmap, 0x00, size);\
- sbi->s_partmaps[(Y)].Z.s_bitmap->s_block_bitmap =\
- (struct buffer_head **)(sbi->s_partmaps[(Y)].Z.s_bitmap + 1);\
- sbi->s_partmaps[(Y)].Z.s_bitmap->s_nr_groups = nr_groups;\
- } else {\
- udf_error(X, __FUNCTION__, "Unable to allocate space for bitmap and %d buffer_head pointers", nr_groups);\
- }\
-}
-
-#define UDF_SB_FREE_BITMAP(X,Y,Z)\
-{\
- int i;\
- int nr_groups = UDF_SB_BITMAP_NR_GROUPS(X,Y,Z);\
- int size = sizeof(struct udf_bitmap) + (sizeof(struct buffer_head *) * nr_groups);\
- for (i = 0; i < nr_groups; i++) {\
- if (UDF_SB_BITMAP(X,Y,Z,i))\
- brelse(UDF_SB_BITMAP(X,Y,Z,i));\
- }\
- if (size <= PAGE_SIZE)\
- kfree(UDF_SB(X)->s_partmaps[Y].Z.s_bitmap);\
- else\
- vfree(UDF_SB(X)->s_partmaps[Y].Z.s_bitmap);\
-}
-
#define UDF_QUERY_FLAG(X,Y) ( UDF_SB(X)->s_flags & ( 1 << (Y) ) )
#define UDF_SET_FLAG(X,Y) ( UDF_SB(X)->s_flags |= ( 1 << (Y) ) )
#define UDF_CLEAR_FLAG(X,Y) ( UDF_SB(X)->s_flags &= ~( 1 << (Y) ) )
-#define UDF_SB_BITMAP(X,Y,Z,I) ( UDF_SB(X)->s_partmaps[(Y)].Z.s_bitmap->s_block_bitmap[I] )
-#define UDF_SB_BITMAP_NR_GROUPS(X,Y,Z) ( UDF_SB(X)->s_partmaps[(Y)].Z.s_bitmap->s_nr_groups )
-
#endif /* __LINUX_UDF_SB_H */
--
1.5.3.4
next prev parent reply other threads:[~2007-12-24 0:11 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-12-24 0:10 [PATCH 0/6] udf: improve code related to super_block, was: udf: convert super_block " marcin.slusarz
2007-12-24 0:10 ` [PATCH 1/6] udf: fix coding style of super.c marcin.slusarz
2007-12-24 0:10 ` [PATCH 2/6] udf: remove some ugly macros marcin.slusarz
2007-12-25 11:54 ` Christoph Hellwig
2007-12-25 14:45 ` Marcin Slusarz
2007-12-24 0:10 ` [PATCH 3/6] udf: convert UDF_SB_ALLOC_PARTMAPS macro to udf_sb_alloc_partition_maps function marcin.slusarz
2007-12-25 11:59 ` Christoph Hellwig
2007-12-25 15:13 ` Marcin Slusarz
2007-12-25 16:41 ` Christoph Hellwig
2007-12-24 0:10 ` [PATCH 4/6] udf: check if udf_load_logicalvol failed marcin.slusarz
2007-12-24 0:10 ` marcin.slusarz [this message]
2007-12-24 0:10 ` [PATCH 6/6] udf: fix sparse warnings (shadowing & mismatch between declaration and definition) marcin.slusarz
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