This commit was manufactured by cvs2svn to create branch 'vserver'.

[linux-2.6.git] / include / linux / ext4_fs_sb.h

diff --git a/include/linux/ext4_fs_sb.h b/include/linux/ext4_fs_sb.h
new file mode 100644 (file)
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+++ b/include/linux/ext4_fs_sb.h
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+/*
+ *  linux/include/linux/ext4_fs_sb.h
+ *
+ * Copyright (C) 1992, 1993, 1994, 1995
+ * Remy Card (card@masi.ibp.fr)
+ * Laboratoire MASI - Institut Blaise Pascal
+ * Universite Pierre et Marie Curie (Paris VI)
+ *
+ *  from
+ *
+ *  linux/include/linux/minix_fs_sb.h
+ *
+ *  Copyright (C) 1991, 1992  Linus Torvalds
+ */
+
+#ifndef _LINUX_EXT4_FS_SB
+#define _LINUX_EXT4_FS_SB
+
+#ifdef __KERNEL__
+#include <linux/timer.h>
+#include <linux/wait.h>
+#include <linux/blockgroup_lock.h>
+#include <linux/percpu_counter.h>
+#endif
+#include <linux/rbtree.h>
+
+/*
+ * third extended-fs super-block data in memory
+ */
+struct ext4_sb_info {
+       unsigned long s_frag_size;      /* Size of a fragment in bytes */
+       unsigned long s_desc_size;      /* Size of a group descriptor in bytes */
+       unsigned long s_frags_per_block;/* Number of fragments per block */
+       unsigned long s_inodes_per_block;/* Number of inodes per block */
+       unsigned long s_frags_per_group;/* Number of fragments in a group */
+       unsigned long s_blocks_per_group;/* Number of blocks in a group */
+       unsigned long s_inodes_per_group;/* Number of inodes in a group */
+       unsigned long s_itb_per_group;  /* Number of inode table blocks per group */
+       unsigned long s_gdb_count;      /* Number of group descriptor blocks */
+       unsigned long s_desc_per_block; /* Number of group descriptors per block */
+       unsigned long s_groups_count;   /* Number of groups in the fs */
+       struct buffer_head * s_sbh;     /* Buffer containing the super block */
+       struct ext4_super_block * s_es; /* Pointer to the super block in the buffer */
+       struct buffer_head ** s_group_desc;
+       unsigned long  s_mount_opt;
+       uid_t s_resuid;
+       gid_t s_resgid;
+       unsigned short s_mount_state;
+       unsigned short s_pad;
+       int s_addr_per_block_bits;
+       int s_desc_per_block_bits;
+       int s_inode_size;
+       int s_first_ino;
+       spinlock_t s_next_gen_lock;
+       u32 s_next_generation;
+       u32 s_hash_seed[4];
+       int s_def_hash_version;
+       struct percpu_counter s_freeblocks_counter;
+       struct percpu_counter s_freeinodes_counter;
+       struct percpu_counter s_dirs_counter;
+       struct blockgroup_lock s_blockgroup_lock;
+
+       /* root of the per fs reservation window tree */
+       spinlock_t s_rsv_window_lock;
+       struct rb_root s_rsv_window_root;
+       struct ext4_reserve_window_node s_rsv_window_head;
+
+       /* Journaling */
+       struct inode * s_journal_inode;
+       struct journal_s * s_journal;
+       struct list_head s_orphan;
+       unsigned long s_commit_interval;
+       struct block_device *journal_bdev;
+#ifdef CONFIG_JBD_DEBUG
+       struct timer_list turn_ro_timer;        /* For turning read-only (crash simulation) */
+       wait_queue_head_t ro_wait_queue;        /* For people waiting for the fs to go read-only */
+#endif
+#ifdef CONFIG_QUOTA
+       char *s_qf_names[MAXQUOTAS];            /* Names of quota files with journalled quota */
+       int s_jquota_fmt;                       /* Format of quota to use */
+#endif
+
+#ifdef EXTENTS_STATS
+       /* ext4 extents stats */
+       unsigned long s_ext_min;
+       unsigned long s_ext_max;
+       unsigned long s_depth_max;
+       spinlock_t s_ext_stats_lock;
+       unsigned long s_ext_blocks;
+       unsigned long s_ext_extents;
+#endif
+};
+
+#endif /* _LINUX_EXT4_FS_SB */