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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>
This commit is contained in:
Theodore Ts'o
parent
a9df9a4910
commit
498e5f2415
9 changed files with 77 additions and 79 deletions
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@ -205,8 +205,8 @@ struct ext4_group_desc * ext4_get_group_desc(struct super_block *sb,
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ext4_group_t block_group,
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struct buffer_head **bh)
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{
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unsigned long group_desc;
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unsigned long offset;
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unsigned int group_desc;
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unsigned int offset;
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struct ext4_group_desc *desc;
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struct ext4_sb_info *sbi = EXT4_SB(sb);
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@ -225,7 +225,7 @@ struct ext4_group_desc * ext4_get_group_desc(struct super_block *sb,
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if (!sbi->s_group_desc[group_desc]) {
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ext4_error(sb, "ext4_get_group_desc",
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"Group descriptor not loaded - "
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"block_group = %u, group_desc = %lu, desc = %lu",
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"block_group = %u, group_desc = %u, desc = %u",
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block_group, group_desc, offset);
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return NULL;
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}
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@ -372,8 +372,8 @@ void ext4_free_blocks_sb(handle_t *handle, struct super_block *sb,
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struct buffer_head *gd_bh;
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ext4_group_t block_group;
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ext4_grpblk_t bit;
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unsigned long i;
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unsigned long overflow;
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unsigned int i;
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unsigned int overflow;
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struct ext4_group_desc *desc;
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struct ext4_super_block *es;
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struct ext4_sb_info *sbi;
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@ -720,7 +720,7 @@ ext4_fsblk_t ext4_count_free_blocks(struct super_block *sb)
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#ifdef EXT4FS_DEBUG
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struct ext4_super_block *es;
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ext4_fsblk_t bitmap_count;
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unsigned long x;
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unsigned int x;
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struct buffer_head *bitmap_bh = NULL;
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es = EXT4_SB(sb)->s_es;
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@ -740,7 +740,7 @@ ext4_fsblk_t ext4_count_free_blocks(struct super_block *sb)
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continue;
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x = ext4_count_free(bitmap_bh, sb->s_blocksize);
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printk(KERN_DEBUG "group %lu: stored = %d, counted = %lu\n",
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printk(KERN_DEBUG "group %lu: stored = %d, counted = %u\n",
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i, le16_to_cpu(gdp->bg_free_blocks_count), x);
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bitmap_count += x;
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}
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@ -15,10 +15,9 @@
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static const int nibblemap[] = {4, 3, 3, 2, 3, 2, 2, 1, 3, 2, 2, 1, 2, 1, 1, 0};
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unsigned long ext4_count_free(struct buffer_head *map, unsigned int numchars)
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unsigned int ext4_count_free(struct buffer_head *map, unsigned int numchars)
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{
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unsigned int i;
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unsigned long sum = 0;
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unsigned int i, sum = 0;
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if (!map)
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return 0;
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@ -64,7 +64,7 @@ static unsigned char get_dtype(struct super_block *sb, int filetype)
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int ext4_check_dir_entry(const char *function, struct inode *dir,
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struct ext4_dir_entry_2 *de,
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struct buffer_head *bh,
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unsigned long offset)
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unsigned int offset)
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{
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const char *error_msg = NULL;
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const int rlen = ext4_rec_len_from_disk(de->rec_len);
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@ -84,9 +84,9 @@ int ext4_check_dir_entry(const char *function, struct inode *dir,
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if (error_msg != NULL)
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ext4_error(dir->i_sb, function,
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"bad entry in directory #%lu: %s - "
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"offset=%lu, inode=%lu, rec_len=%d, name_len=%d",
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"offset=%u, inode=%u, rec_len=%d, name_len=%d",
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dir->i_ino, error_msg, offset,
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(unsigned long) le32_to_cpu(de->inode),
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le32_to_cpu(de->inode),
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rlen, de->name_len);
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return error_msg == NULL ? 1 : 0;
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}
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@ -95,7 +95,7 @@ static int ext4_readdir(struct file *filp,
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void *dirent, filldir_t filldir)
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{
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int error = 0;
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unsigned long offset;
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unsigned int offset;
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int i, stored;
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struct ext4_dir_entry_2 *de;
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struct super_block *sb;
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@ -94,9 +94,9 @@ struct ext4_allocation_request {
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/* phys. block for ^^^ */
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ext4_fsblk_t pright;
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/* how many blocks we want to allocate */
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unsigned long len;
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unsigned int len;
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/* flags. see above EXT4_MB_HINT_* */
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unsigned long flags;
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unsigned int flags;
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};
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/*
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@ -997,6 +997,9 @@ do { \
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# define ATTRIB_NORET __attribute__((noreturn))
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# define NORET_AND noreturn,
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/* bitmap.c */
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extern unsigned int ext4_count_free(struct buffer_head *, unsigned);
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/* balloc.c */
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extern unsigned int ext4_block_group(struct super_block *sb,
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ext4_fsblk_t blocknr);
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@ -1024,7 +1027,7 @@ extern int ext4_should_retry_alloc(struct super_block *sb, int *retries);
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/* dir.c */
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extern int ext4_check_dir_entry(const char *, struct inode *,
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struct ext4_dir_entry_2 *,
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struct buffer_head *, unsigned long);
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struct buffer_head *, unsigned int);
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extern int ext4_htree_store_dirent(struct file *dir_file, __u32 hash,
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__u32 minor_hash,
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struct ext4_dir_entry_2 *dirent);
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@ -1044,7 +1047,6 @@ extern struct inode * ext4_orphan_get(struct super_block *, unsigned long);
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extern unsigned long ext4_count_free_inodes(struct super_block *);
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extern unsigned long ext4_count_dirs(struct super_block *);
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extern void ext4_check_inodes_bitmap(struct super_block *);
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extern unsigned long ext4_count_free(struct buffer_head *, unsigned);
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/* mballoc.c */
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extern long ext4_mb_stats;
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@ -1074,10 +1076,6 @@ struct buffer_head *ext4_bread(handle_t *, struct inode *,
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ext4_lblk_t, int, int *);
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int ext4_get_block(struct inode *inode, sector_t iblock,
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struct buffer_head *bh_result, int create);
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int ext4_get_blocks_handle(handle_t *handle, struct inode *inode,
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ext4_lblk_t iblock, unsigned long maxblocks,
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struct buffer_head *bh_result,
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int create, int extend_disksize);
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extern struct inode *ext4_iget(struct super_block *, unsigned long);
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extern int ext4_write_inode(struct inode *, int);
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@ -1276,16 +1274,16 @@ extern int ext4_ext_writepage_trans_blocks(struct inode *, int);
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extern int ext4_ext_index_trans_blocks(struct inode *inode, int nrblocks,
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int chunk);
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extern int ext4_ext_get_blocks(handle_t *handle, struct inode *inode,
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ext4_lblk_t iblock,
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unsigned long max_blocks, struct buffer_head *bh_result,
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int create, int extend_disksize);
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ext4_lblk_t iblock, unsigned int max_blocks,
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struct buffer_head *bh_result,
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int create, int extend_disksize);
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extern void ext4_ext_truncate(struct inode *);
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extern void ext4_ext_init(struct super_block *);
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extern void ext4_ext_release(struct super_block *);
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extern long ext4_fallocate(struct inode *inode, int mode, loff_t offset,
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loff_t len);
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extern int ext4_get_blocks_wrap(handle_t *handle, struct inode *inode,
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sector_t block, unsigned long max_blocks,
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sector_t block, unsigned int max_blocks,
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struct buffer_head *bh, int create,
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int extend_disksize, int flag);
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#endif /* __KERNEL__ */
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@ -100,9 +100,6 @@ struct ext4_inode_info {
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*/
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loff_t i_disksize;
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/* on-disk additional length */
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__u16 i_extra_isize;
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/*
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* i_data_sem is for serialising ext4_truncate() against
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* ext4_getblock(). In the 2.4 ext2 design, great chunks of inode's
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@ -129,10 +126,14 @@ struct ext4_inode_info {
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spinlock_t i_prealloc_lock;
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/* allocation reservation info for delalloc */
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unsigned long i_reserved_data_blocks;
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unsigned long i_reserved_meta_blocks;
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unsigned long i_allocated_meta_blocks;
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unsigned int i_reserved_data_blocks;
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unsigned int i_reserved_meta_blocks;
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unsigned int i_allocated_meta_blocks;
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unsigned short i_delalloc_reserved_flag;
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/* on-disk additional length */
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__u16 i_extra_isize;
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spinlock_t i_block_reservation_lock;
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};
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@ -2377,7 +2377,7 @@ static int ext4_ext_convert_to_initialized(handle_t *handle,
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struct inode *inode,
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struct ext4_ext_path *path,
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ext4_lblk_t iblock,
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unsigned long max_blocks)
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unsigned int max_blocks)
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{
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struct ext4_extent *ex, newex, orig_ex;
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struct ext4_extent *ex1 = NULL;
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@ -2675,26 +2675,26 @@ fix_extent_len:
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*/
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int ext4_ext_get_blocks(handle_t *handle, struct inode *inode,
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ext4_lblk_t iblock,
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unsigned long max_blocks, struct buffer_head *bh_result,
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unsigned int max_blocks, struct buffer_head *bh_result,
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int create, int extend_disksize)
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{
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struct ext4_ext_path *path = NULL;
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struct ext4_extent_header *eh;
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struct ext4_extent newex, *ex;
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ext4_fsblk_t goal, newblock;
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int err = 0, depth, ret;
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unsigned long allocated = 0;
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ext4_fsblk_t newblock;
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int err = 0, depth, ret, cache_type;
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unsigned int allocated = 0;
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struct ext4_allocation_request ar;
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loff_t disksize;
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__clear_bit(BH_New, &bh_result->b_state);
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ext_debug("blocks %u/%lu requested for inode %u\n",
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ext_debug("blocks %u/%u requested for inode %u\n",
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iblock, max_blocks, inode->i_ino);
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/* check in cache */
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goal = ext4_ext_in_cache(inode, iblock, &newex);
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if (goal) {
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if (goal == EXT4_EXT_CACHE_GAP) {
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cache_type = ext4_ext_in_cache(inode, iblock, &newex);
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if (cache_type) {
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if (cache_type == EXT4_EXT_CACHE_GAP) {
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if (!create) {
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/*
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* block isn't allocated yet and
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@ -2703,7 +2703,7 @@ int ext4_ext_get_blocks(handle_t *handle, struct inode *inode,
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goto out2;
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}
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/* we should allocate requested block */
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} else if (goal == EXT4_EXT_CACHE_EXTENT) {
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} else if (cache_type == EXT4_EXT_CACHE_EXTENT) {
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/* block is already allocated */
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newblock = iblock
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- le32_to_cpu(newex.ee_block)
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@ -2851,7 +2851,7 @@ int ext4_ext_get_blocks(handle_t *handle, struct inode *inode,
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if (!newblock)
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goto out2;
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ext_debug("allocate new block: goal %llu, found %llu/%lu\n",
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goal, newblock, allocated);
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ar.goal, newblock, allocated);
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/* try to insert new extent into found leaf and return */
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ext4_ext_store_pblock(&newex, newblock);
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@ -3001,7 +3001,7 @@ long ext4_fallocate(struct inode *inode, int mode, loff_t offset, loff_t len)
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handle_t *handle;
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ext4_lblk_t block;
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loff_t new_size;
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unsigned long max_blocks;
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unsigned int max_blocks;
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int ret = 0;
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int ret2 = 0;
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int retries = 0;
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@ -514,10 +514,10 @@ static ext4_fsblk_t ext4_find_goal(struct inode *inode, ext4_lblk_t block,
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* return the total number of blocks to be allocate, including the
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* direct and indirect blocks.
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*/
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static int ext4_blks_to_allocate(Indirect *branch, int k, unsigned long blks,
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static int ext4_blks_to_allocate(Indirect *branch, int k, unsigned int blks,
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int blocks_to_boundary)
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{
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unsigned long count = 0;
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unsigned int count = 0;
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/*
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* Simple case, [t,d]Indirect block(s) has not allocated yet
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@ -856,10 +856,10 @@ err_out:
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* down_read(&EXT4_I(inode)->i_data_sem) if not allocating file system block
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* (ie, create is zero). Otherwise down_write(&EXT4_I(inode)->i_data_sem)
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*/
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int ext4_get_blocks_handle(handle_t *handle, struct inode *inode,
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ext4_lblk_t iblock, unsigned long maxblocks,
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struct buffer_head *bh_result,
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int create, int extend_disksize)
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static int ext4_get_blocks_handle(handle_t *handle, struct inode *inode,
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ext4_lblk_t iblock, unsigned int maxblocks,
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struct buffer_head *bh_result,
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int create, int extend_disksize)
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{
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int err = -EIO;
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ext4_lblk_t offsets[4];
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@ -1061,7 +1061,7 @@ static void ext4_da_update_reserve_space(struct inode *inode, int used)
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* It returns the error in case of allocation failure.
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*/
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int ext4_get_blocks_wrap(handle_t *handle, struct inode *inode, sector_t block,
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unsigned long max_blocks, struct buffer_head *bh,
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unsigned int max_blocks, struct buffer_head *bh,
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int create, int extend_disksize, int flag)
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{
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int retval;
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@ -1641,7 +1641,7 @@ struct mpage_da_data {
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get_block_t *get_block;
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struct writeback_control *wbc;
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int io_done;
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long pages_written;
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int pages_written;
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int retval;
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};
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@ -1855,9 +1855,9 @@ static void ext4_print_free_blocks(struct inode *inode)
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printk(KERN_EMERG "dirty_blocks=%lld\n",
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(long long)percpu_counter_sum(&sbi->s_dirtyblocks_counter));
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printk(KERN_EMERG "Block reservation details\n");
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printk(KERN_EMERG "i_reserved_data_blocks=%lu\n",
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printk(KERN_EMERG "i_reserved_data_blocks=%u\n",
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EXT4_I(inode)->i_reserved_data_blocks);
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printk(KERN_EMERG "i_reserved_meta_blocks=%lu\n",
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printk(KERN_EMERG "i_reserved_meta_blocks=%u\n",
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EXT4_I(inode)->i_reserved_meta_blocks);
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return;
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}
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@ -2307,7 +2307,7 @@ static int ext4_da_writepage(struct page *page,
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{
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int ret = 0;
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loff_t size;
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unsigned long len;
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unsigned int len;
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struct buffer_head *page_bufs;
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struct inode *inode = page->mapping->host;
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@ -2416,7 +2416,8 @@ static int ext4_da_writepages(struct address_space *mapping,
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struct mpage_da_data mpd;
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struct inode *inode = mapping->host;
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int no_nrwrite_index_update;
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long pages_written = 0, pages_skipped;
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int pages_written = 0;
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long pages_skipped;
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int needed_blocks, ret = 0, nr_to_writebump = 0;
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struct ext4_sb_info *sbi = EXT4_SB(mapping->host->i_sb);
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@ -2796,7 +2796,7 @@ void exit_ext4_mballoc(void)
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*/
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static noinline_for_stack int
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ext4_mb_mark_diskspace_used(struct ext4_allocation_context *ac,
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handle_t *handle, unsigned long reserv_blks)
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handle_t *handle, unsigned int reserv_blks)
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{
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struct buffer_head *bitmap_bh = NULL;
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struct ext4_super_block *es;
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@ -3036,7 +3036,7 @@ ext4_mb_normalize_request(struct ext4_allocation_context *ac,
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/* check we don't cross already preallocated blocks */
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rcu_read_lock();
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list_for_each_entry_rcu(pa, &ei->i_prealloc_list, pa_inode_list) {
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unsigned long pa_end;
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ext4_lblk_t pa_end;
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if (pa->pa_deleted)
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continue;
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@ -3080,7 +3080,7 @@ ext4_mb_normalize_request(struct ext4_allocation_context *ac,
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/* XXX: extra loop to check we really don't overlap preallocations */
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rcu_read_lock();
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list_for_each_entry_rcu(pa, &ei->i_prealloc_list, pa_inode_list) {
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unsigned long pa_end;
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ext4_lblk_t pa_end;
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spin_lock(&pa->pa_lock);
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if (pa->pa_deleted == 0) {
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pa_end = pa->pa_lstart + pa->pa_len;
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@ -3584,8 +3584,8 @@ ext4_mb_release_inode_pa(struct ext4_buddy *e4b, struct buffer_head *bitmap_bh,
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{
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struct super_block *sb = e4b->bd_sb;
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struct ext4_sb_info *sbi = EXT4_SB(sb);
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unsigned long end;
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unsigned long next;
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unsigned int end;
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unsigned int next;
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ext4_group_t group;
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ext4_grpblk_t bit;
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sector_t start;
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@ -4029,8 +4029,8 @@ ext4_mb_initialize_context(struct ext4_allocation_context *ac,
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struct ext4_sb_info *sbi = EXT4_SB(sb);
|
||||
struct ext4_super_block *es = sbi->s_es;
|
||||
ext4_group_t group;
|
||||
unsigned long len;
|
||||
unsigned long goal;
|
||||
unsigned int len;
|
||||
ext4_fsblk_t goal;
|
||||
ext4_grpblk_t block;
|
||||
|
||||
/* we can't allocate > group size */
|
||||
|
|
@ -4291,8 +4291,8 @@ ext4_fsblk_t ext4_mb_new_blocks(handle_t *handle,
|
|||
struct ext4_sb_info *sbi;
|
||||
struct super_block *sb;
|
||||
ext4_fsblk_t block = 0;
|
||||
unsigned long inquota;
|
||||
unsigned long reserv_blks = 0;
|
||||
unsigned int inquota;
|
||||
unsigned int reserv_blks = 0;
|
||||
|
||||
sb = ar->inode->i_sb;
|
||||
sbi = EXT4_SB(sb);
|
||||
|
|
@ -4504,7 +4504,7 @@ void ext4_mb_free_blocks(handle_t *handle, struct inode *inode,
|
|||
struct ext4_allocation_context *ac = NULL;
|
||||
struct ext4_group_desc *gdp;
|
||||
struct ext4_super_block *es;
|
||||
unsigned long overflow;
|
||||
unsigned int overflow;
|
||||
ext4_grpblk_t bit;
|
||||
struct buffer_head *gd_bh;
|
||||
ext4_group_t block_group;
|
||||
|
|
|
|||
|
|
@ -811,7 +811,7 @@ static inline int ext4_match (int len, const char * const name,
|
|||
static inline int search_dirblock(struct buffer_head *bh,
|
||||
struct inode *dir,
|
||||
const struct qstr *d_name,
|
||||
unsigned long offset,
|
||||
unsigned int offset,
|
||||
struct ext4_dir_entry_2 ** res_dir)
|
||||
{
|
||||
struct ext4_dir_entry_2 * de;
|
||||
|
|
@ -1048,11 +1048,11 @@ static struct dentry *ext4_lookup(struct inode *dir, struct dentry *dentry, stru
|
|||
bh = ext4_find_entry(dir, &dentry->d_name, &de);
|
||||
inode = NULL;
|
||||
if (bh) {
|
||||
unsigned long ino = le32_to_cpu(de->inode);
|
||||
__u32 ino = le32_to_cpu(de->inode);
|
||||
brelse(bh);
|
||||
if (!ext4_valid_inum(dir->i_sb, ino)) {
|
||||
ext4_error(dir->i_sb, "ext4_lookup",
|
||||
"bad inode number: %lu", ino);
|
||||
"bad inode number: %u", ino);
|
||||
return ERR_PTR(-EIO);
|
||||
}
|
||||
inode = ext4_iget(dir->i_sb, ino);
|
||||
|
|
@ -1065,7 +1065,7 @@ static struct dentry *ext4_lookup(struct inode *dir, struct dentry *dentry, stru
|
|||
|
||||
struct dentry *ext4_get_parent(struct dentry *child)
|
||||
{
|
||||
unsigned long ino;
|
||||
__u32 ino;
|
||||
struct inode *inode;
|
||||
static const struct qstr dotdot = {
|
||||
.name = "..",
|
||||
|
|
@ -1083,7 +1083,7 @@ struct dentry *ext4_get_parent(struct dentry *child)
|
|||
|
||||
if (!ext4_valid_inum(child->d_inode->i_sb, ino)) {
|
||||
ext4_error(child->d_inode->i_sb, "ext4_get_parent",
|
||||
"bad inode number: %lu", ino);
|
||||
"bad inode number: %u", ino);
|
||||
return ERR_PTR(-EIO);
|
||||
}
|
||||
|
||||
|
|
@ -1271,7 +1271,7 @@ static int add_dirent_to_buf(handle_t *handle, struct dentry *dentry,
|
|||
struct inode *dir = dentry->d_parent->d_inode;
|
||||
const char *name = dentry->d_name.name;
|
||||
int namelen = dentry->d_name.len;
|
||||
unsigned long offset = 0;
|
||||
unsigned int offset = 0;
|
||||
unsigned short reclen;
|
||||
int nlen, rlen, err;
|
||||
char *top;
|
||||
|
|
@ -1444,7 +1444,6 @@ static int ext4_add_entry(handle_t *handle, struct dentry *dentry,
|
|||
struct inode *inode)
|
||||
{
|
||||
struct inode *dir = dentry->d_parent->d_inode;
|
||||
unsigned long offset;
|
||||
struct buffer_head *bh;
|
||||
struct ext4_dir_entry_2 *de;
|
||||
struct super_block *sb;
|
||||
|
|
@ -1466,7 +1465,7 @@ static int ext4_add_entry(handle_t *handle, struct dentry *dentry,
|
|||
ext4_mark_inode_dirty(handle, dir);
|
||||
}
|
||||
blocks = dir->i_size >> sb->s_blocksize_bits;
|
||||
for (block = 0, offset = 0; block < blocks; block++) {
|
||||
for (block = 0; block < blocks; block++) {
|
||||
bh = ext4_bread(handle, dir, block, 0, &retval);
|
||||
if(!bh)
|
||||
return retval;
|
||||
|
|
@ -1861,7 +1860,7 @@ out_stop:
|
|||
*/
|
||||
static int empty_dir(struct inode *inode)
|
||||
{
|
||||
unsigned long offset;
|
||||
unsigned int offset;
|
||||
struct buffer_head *bh;
|
||||
struct ext4_dir_entry_2 *de, *de1;
|
||||
struct super_block *sb;
|
||||
|
|
@ -1906,7 +1905,7 @@ static int empty_dir(struct inode *inode)
|
|||
if (err)
|
||||
ext4_error(sb, __func__,
|
||||
"error %d reading directory"
|
||||
" #%lu offset %lu",
|
||||
" #%lu offset %u",
|
||||
err, inode->i_ino, offset);
|
||||
offset += sb->s_blocksize;
|
||||
continue;
|
||||
|
|
@ -2009,7 +2008,7 @@ int ext4_orphan_del(handle_t *handle, struct inode *inode)
|
|||
struct list_head *prev;
|
||||
struct ext4_inode_info *ei = EXT4_I(inode);
|
||||
struct ext4_sb_info *sbi;
|
||||
unsigned long ino_next;
|
||||
__u32 ino_next;
|
||||
struct ext4_iloc iloc;
|
||||
int err = 0;
|
||||
|
||||
|
|
@ -2042,7 +2041,7 @@ int ext4_orphan_del(handle_t *handle, struct inode *inode)
|
|||
goto out_err;
|
||||
|
||||
if (prev == &sbi->s_orphan) {
|
||||
jbd_debug(4, "superblock will point to %lu\n", ino_next);
|
||||
jbd_debug(4, "superblock will point to %u\n", ino_next);
|
||||
BUFFER_TRACE(sbi->s_sbh, "get_write_access");
|
||||
err = ext4_journal_get_write_access(handle, sbi->s_sbh);
|
||||
if (err)
|
||||
|
|
@ -2054,7 +2053,7 @@ int ext4_orphan_del(handle_t *handle, struct inode *inode)
|
|||
struct inode *i_prev =
|
||||
&list_entry(prev, struct ext4_inode_info, i_orphan)->vfs_inode;
|
||||
|
||||
jbd_debug(4, "orphan inode %lu will point to %lu\n",
|
||||
jbd_debug(4, "orphan inode %lu will point to %u\n",
|
||||
i_prev->i_ino, ino_next);
|
||||
err = ext4_reserve_inode_write(handle, i_prev, &iloc2);
|
||||
if (err)
|
||||
|
|
|
|||
Loading…
Reference in a new issue