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authorTheodore Ts'o <tytso@mit.edu>2008-11-05 00:14:04 -0500
committerTheodore Ts'o <tytso@mit.edu>2008-11-05 00:14:04 -0500
commit498e5f24158da7bf8fa48074a70e370e22844492 (patch)
tree1434b349c8eca3b0667af0b385533cbcd599c1c3 /fs/ext4/ext4.h
parenta9df9a49102f3578909cba7bd33784eb3b9caaa4 (diff)
ext4: Change unsigned long to unsigned int
Convert the unsigned longs that are most responsible for bloating the stack usage on 64-bit systems. Nearly all places in the ext3/4 code which uses "unsigned long" is probably a bug, since on 32-bit systems a ulong a 32-bits, which means we are wasting stack space on 64-bit systems. Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Diffstat (limited to 'fs/ext4/ext4.h')
-rw-r--r--fs/ext4/ext4.h22
1 files changed, 10 insertions, 12 deletions
diff --git a/fs/ext4/ext4.h b/fs/ext4/ext4.h
index e9aacecfbf4..558545d1fea 100644
--- a/fs/ext4/ext4.h
+++ b/fs/ext4/ext4.h
@@ -94,9 +94,9 @@ struct ext4_allocation_request {
/* phys. block for ^^^ */
ext4_fsblk_t pright;
/* how many blocks we want to allocate */
- unsigned long len;
+ unsigned int len;
/* flags. see above EXT4_MB_HINT_* */
- unsigned long flags;
+ unsigned int flags;
};
/*
@@ -997,6 +997,9 @@ do { \
# define ATTRIB_NORET __attribute__((noreturn))
# define NORET_AND noreturn,
+/* bitmap.c */
+extern unsigned int ext4_count_free(struct buffer_head *, unsigned);
+
/* balloc.c */
extern unsigned int ext4_block_group(struct super_block *sb,
ext4_fsblk_t blocknr);
@@ -1024,7 +1027,7 @@ extern int ext4_should_retry_alloc(struct super_block *sb, int *retries);
/* dir.c */
extern int ext4_check_dir_entry(const char *, struct inode *,
struct ext4_dir_entry_2 *,
- struct buffer_head *, unsigned long);
+ struct buffer_head *, unsigned int);
extern int ext4_htree_store_dirent(struct file *dir_file, __u32 hash,
__u32 minor_hash,
struct ext4_dir_entry_2 *dirent);
@@ -1044,7 +1047,6 @@ extern struct inode * ext4_orphan_get(struct super_block *, unsigned long);
extern unsigned long ext4_count_free_inodes(struct super_block *);
extern unsigned long ext4_count_dirs(struct super_block *);
extern void ext4_check_inodes_bitmap(struct super_block *);
-extern unsigned long ext4_count_free(struct buffer_head *, unsigned);
/* mballoc.c */
extern long ext4_mb_stats;
@@ -1074,10 +1076,6 @@ struct buffer_head *ext4_bread(handle_t *, struct inode *,
ext4_lblk_t, int, int *);
int ext4_get_block(struct inode *inode, sector_t iblock,
struct buffer_head *bh_result, int create);
-int ext4_get_blocks_handle(handle_t *handle, struct inode *inode,
- ext4_lblk_t iblock, unsigned long maxblocks,
- struct buffer_head *bh_result,
- int create, int extend_disksize);
extern struct inode *ext4_iget(struct super_block *, unsigned long);
extern int ext4_write_inode(struct inode *, int);
@@ -1276,16 +1274,16 @@ extern int ext4_ext_writepage_trans_blocks(struct inode *, int);
extern int ext4_ext_index_trans_blocks(struct inode *inode, int nrblocks,
int chunk);
extern int ext4_ext_get_blocks(handle_t *handle, struct inode *inode,
- ext4_lblk_t iblock,
- unsigned long max_blocks, struct buffer_head *bh_result,
- int create, int extend_disksize);
+ ext4_lblk_t iblock, unsigned int max_blocks,
+ struct buffer_head *bh_result,
+ int create, int extend_disksize);
extern void ext4_ext_truncate(struct inode *);
extern void ext4_ext_init(struct super_block *);
extern void ext4_ext_release(struct super_block *);
extern long ext4_fallocate(struct inode *inode, int mode, loff_t offset,
loff_t len);
extern int ext4_get_blocks_wrap(handle_t *handle, struct inode *inode,
- sector_t block, unsigned long max_blocks,
+ sector_t block, unsigned int max_blocks,
struct buffer_head *bh, int create,
int extend_disksize, int flag);
#endif /* __KERNEL__ */