forked from Minki/linux
3f165e4cf2
Replace the BKL-based locking scheme used in the bfs driver by a private filesystem-wide mutex. Signed-off-by: Dmitri Vorobiev <dmitri.vorobiev@movial.fi> Cc: Tigran Aivazian <tigran_aivazian@symantec.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
61 lines
1.4 KiB
C
61 lines
1.4 KiB
C
/*
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* fs/bfs/bfs.h
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* Copyright (C) 1999 Tigran Aivazian <tigran@veritas.com>
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*/
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#ifndef _FS_BFS_BFS_H
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#define _FS_BFS_BFS_H
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#include <linux/bfs_fs.h>
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/*
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* BFS file system in-core superblock info
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*/
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struct bfs_sb_info {
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unsigned long si_blocks;
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unsigned long si_freeb;
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unsigned long si_freei;
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unsigned long si_lf_eblk;
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unsigned long si_lasti;
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unsigned long *si_imap;
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struct buffer_head *si_sbh; /* buffer header w/superblock */
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struct mutex bfs_lock;
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};
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/*
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* BFS file system in-core inode info
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*/
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struct bfs_inode_info {
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unsigned long i_dsk_ino; /* inode number from the disk, can be 0 */
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unsigned long i_sblock;
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unsigned long i_eblock;
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struct inode vfs_inode;
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};
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static inline struct bfs_sb_info *BFS_SB(struct super_block *sb)
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{
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return sb->s_fs_info;
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}
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static inline struct bfs_inode_info *BFS_I(struct inode *inode)
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{
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return container_of(inode, struct bfs_inode_info, vfs_inode);
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}
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#define printf(format, args...) \
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printk(KERN_ERR "BFS-fs: %s(): " format, __func__, ## args)
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/* inode.c */
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extern struct inode *bfs_iget(struct super_block *sb, unsigned long ino);
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/* file.c */
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extern const struct inode_operations bfs_file_inops;
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extern const struct file_operations bfs_file_operations;
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extern const struct address_space_operations bfs_aops;
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/* dir.c */
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extern const struct inode_operations bfs_dir_inops;
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extern const struct file_operations bfs_dir_operations;
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#endif /* _FS_BFS_BFS_H */
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