ext4.h (404c3bc30cb1361e1b3533643326ab472d24a618) ext4.h (952fc18ef9ec707ebdc16c0786ec360295e5ff15)
1/*
2 * ext4.h
3 *
4 * Copyright (C) 1992, 1993, 1994, 1995
5 * Remy Card (card@masi.ibp.fr)
6 * Laboratoire MASI - Institut Blaise Pascal
7 * Universite Pierre et Marie Curie (Paris VI)
8 *

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1156 unsigned long s_blocks_per_group;/* Number of blocks in a group */
1157 unsigned long s_clusters_per_group; /* Number of clusters in a group */
1158 unsigned long s_inodes_per_group;/* Number of inodes in a group */
1159 unsigned long s_itb_per_group; /* Number of inode table blocks per group */
1160 unsigned long s_gdb_count; /* Number of group descriptor blocks */
1161 unsigned long s_desc_per_block; /* Number of group descriptors per block */
1162 ext4_group_t s_groups_count; /* Number of groups in the fs */
1163 ext4_group_t s_blockfile_groups;/* Groups acceptable for non-extent files */
1/*
2 * ext4.h
3 *
4 * Copyright (C) 1992, 1993, 1994, 1995
5 * Remy Card (card@masi.ibp.fr)
6 * Laboratoire MASI - Institut Blaise Pascal
7 * Universite Pierre et Marie Curie (Paris VI)
8 *

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1156 unsigned long s_blocks_per_group;/* Number of blocks in a group */
1157 unsigned long s_clusters_per_group; /* Number of clusters in a group */
1158 unsigned long s_inodes_per_group;/* Number of inodes in a group */
1159 unsigned long s_itb_per_group; /* Number of inode table blocks per group */
1160 unsigned long s_gdb_count; /* Number of group descriptor blocks */
1161 unsigned long s_desc_per_block; /* Number of group descriptors per block */
1162 ext4_group_t s_groups_count; /* Number of groups in the fs */
1163 ext4_group_t s_blockfile_groups;/* Groups acceptable for non-extent files */
1164 unsigned long s_overhead_last; /* Last calculated overhead */
1165 unsigned long s_blocks_last; /* Last seen block count */
1164 unsigned long s_overhead; /* # of fs overhead clusters */
1166 unsigned int s_cluster_ratio; /* Number of blocks per cluster */
1167 unsigned int s_cluster_bits; /* log2 of s_cluster_ratio */
1168 loff_t s_bitmap_maxbytes; /* max bytes for bitmap files */
1169 struct buffer_head * s_sbh; /* Buffer containing the super block */
1170 struct ext4_super_block *s_es; /* Pointer to the super block in the buffer */
1171 struct buffer_head **s_group_desc;
1172 unsigned int s_mount_opt;
1173 unsigned int s_mount_opt2;

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1847 * Ok, these declarations are also in <linux/kernel.h> but none of the
1848 * ext4 source programs needs to include it so they are duplicated here.
1849 */
1850# define NORET_TYPE /**/
1851# define ATTRIB_NORET __attribute__((noreturn))
1852# define NORET_AND noreturn,
1853
1854/* bitmap.c */
1165 unsigned int s_cluster_ratio; /* Number of blocks per cluster */
1166 unsigned int s_cluster_bits; /* log2 of s_cluster_ratio */
1167 loff_t s_bitmap_maxbytes; /* max bytes for bitmap files */
1168 struct buffer_head * s_sbh; /* Buffer containing the super block */
1169 struct ext4_super_block *s_es; /* Pointer to the super block in the buffer */
1170 struct buffer_head **s_group_desc;
1171 unsigned int s_mount_opt;
1172 unsigned int s_mount_opt2;

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1846 * Ok, these declarations are also in <linux/kernel.h> but none of the
1847 * ext4 source programs needs to include it so they are duplicated here.
1848 */
1849# define NORET_TYPE /**/
1850# define ATTRIB_NORET __attribute__((noreturn))
1851# define NORET_AND noreturn,
1852
1853/* bitmap.c */
1855extern unsigned int ext4_count_free(struct buffer_head *, unsigned);
1854extern unsigned int ext4_count_free(char *bitmap, unsigned numchars);
1856void ext4_inode_bitmap_csum_set(struct super_block *sb, ext4_group_t group,
1857 struct ext4_group_desc *gdp,
1858 struct buffer_head *bh, int sz);
1859int ext4_inode_bitmap_csum_verify(struct super_block *sb, ext4_group_t group,
1860 struct ext4_group_desc *gdp,
1861 struct buffer_head *bh, int sz);
1862void ext4_block_bitmap_csum_set(struct super_block *sb, ext4_group_t group,
1863 struct ext4_group_desc *gdp,

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2032extern int ext4_group_add(struct super_block *sb,
2033 struct ext4_new_group_data *input);
2034extern int ext4_group_extend(struct super_block *sb,
2035 struct ext4_super_block *es,
2036 ext4_fsblk_t n_blocks_count);
2037extern int ext4_resize_fs(struct super_block *sb, ext4_fsblk_t n_blocks_count);
2038
2039/* super.c */
1855void ext4_inode_bitmap_csum_set(struct super_block *sb, ext4_group_t group,
1856 struct ext4_group_desc *gdp,
1857 struct buffer_head *bh, int sz);
1858int ext4_inode_bitmap_csum_verify(struct super_block *sb, ext4_group_t group,
1859 struct ext4_group_desc *gdp,
1860 struct buffer_head *bh, int sz);
1861void ext4_block_bitmap_csum_set(struct super_block *sb, ext4_group_t group,
1862 struct ext4_group_desc *gdp,

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2031extern int ext4_group_add(struct super_block *sb,
2032 struct ext4_new_group_data *input);
2033extern int ext4_group_extend(struct super_block *sb,
2034 struct ext4_super_block *es,
2035 ext4_fsblk_t n_blocks_count);
2036extern int ext4_resize_fs(struct super_block *sb, ext4_fsblk_t n_blocks_count);
2037
2038/* super.c */
2039extern int ext4_calculate_overhead(struct super_block *sb);
2040extern int ext4_superblock_csum_verify(struct super_block *sb,
2041 struct ext4_super_block *es);
2042extern void ext4_superblock_csum_set(struct super_block *sb,
2043 struct ext4_super_block *es);
2044extern void *ext4_kvmalloc(size_t size, gfp_t flags);
2045extern void *ext4_kvzalloc(size_t size, gfp_t flags);
2046extern void ext4_kvfree(void *ptr);
2047extern __printf(4, 5)

--- 429 unchanged lines hidden --- 		2040extern int ext4_superblock_csum_verify(struct super_block *sb,
2041 struct ext4_super_block *es);
2042extern void ext4_superblock_csum_set(struct super_block *sb,
2043 struct ext4_super_block *es);
2044extern void *ext4_kvmalloc(size_t size, gfp_t flags);
2045extern void *ext4_kvzalloc(size_t size, gfp_t flags);
2046extern void ext4_kvfree(void *ptr);
2047extern __printf(4, 5)

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