diff options
Diffstat (limited to 'include/linux/fs.h')
| -rw-r--r-- | include/linux/fs.h | 57 |
1 files changed, 35 insertions, 22 deletions
diff --git a/include/linux/fs.h b/include/linux/fs.h index 85e04d184..1918471ab 100644 --- a/include/linux/fs.h +++ b/include/linux/fs.h @@ -95,7 +95,6 @@ extern int max_files, nr_files; * Exception: MS_RDONLY is always applied to the entire file system. */ #define IS_RDONLY(inode) (((inode)->i_sb) && ((inode)->i_sb->s_flags & MS_RDONLY)) -#define DO_UPDATE_ATIME(inode) (!((inode)->i_flags & MS_NOATIME) && !IS_RDONLY(inode)) #define IS_NOSUID(inode) ((inode)->i_flags & MS_NOSUID) #define IS_NODEV(inode) ((inode)->i_flags & MS_NODEV) #define IS_NOEXEC(inode) ((inode)->i_flags & MS_NOEXEC) @@ -105,6 +104,8 @@ extern int max_files, nr_files; #define IS_WRITABLE(inode) ((inode)->i_flags & S_WRITE) #define IS_APPEND(inode) ((inode)->i_flags & S_APPEND) #define IS_IMMUTABLE(inode) ((inode)->i_flags & S_IMMUTABLE) +#define IS_NOATIME(inode) ((inode)->i_flags & MS_NOATIME) +#define DO_UPDATE_ATIME(inode) (!IS_NOATIME(inode) && !IS_RDONLY(inode)) /* the read-only stuff doesn't really belong here, but any other place is probably as bad and I don't want to create yet another include file. */ @@ -129,7 +130,7 @@ extern int max_files, nr_files; extern void buffer_init(void); extern void inode_init(void); -extern unsigned long file_table_init(unsigned long start, unsigned long end); +extern void file_table_init(void); extern unsigned long name_cache_init(unsigned long start, unsigned long end); typedef char buffer_block[BLOCK_SIZE]; @@ -246,6 +247,7 @@ static inline int buffer_protected(struct buffer_head * bh) #define ATTR_ATIME_SET 128 #define ATTR_MTIME_SET 256 #define ATTR_FORCE 512 /* Not a change, but a change it */ +#define ATTR_ATTR_FLAG 1024 /* * This is the Inode Attributes structure, used for notify_change(). It @@ -265,8 +267,17 @@ struct iattr { time_t ia_atime; time_t ia_mtime; time_t ia_ctime; + unsigned int ia_attr_flags; }; +/* + * This is the inode attributes flag definitions + */ +#define ATTR_FLAG_SYNCRONOUS 1 /* Syncronous write */ +#define ATTR_FLAG_NOATIME 2 /* Don't update atime */ +#define ATTR_FLAG_APPEND 4 /* Append-only file */ +#define ATTR_FLAG_IMMUTABLE 8 /* Immutable file */ + #include <linux/quota.h> struct inode { @@ -305,9 +316,8 @@ struct inode { unsigned char i_dirt; unsigned char i_pipe; unsigned char i_sock; - unsigned char i_seek; - unsigned char i_update; - unsigned short i_writecount; + int i_writecount; + unsigned int i_attr_flags; union { struct pipe_inode_info pipe_i; struct minix_inode_info minix_i; @@ -327,17 +337,21 @@ struct inode { }; struct file { - mode_t f_mode; - loff_t f_pos; - unsigned short f_flags; - unsigned short f_count; - unsigned long f_reada, f_ramax, f_raend, f_ralen, f_rawin; - struct file *f_next, *f_prev; - int f_owner; /* pid or -pgrp where SIGIO should be sent */ - struct inode * f_inode; - struct file_operations * f_op; - unsigned long f_version; - void *private_data; /* needed for tty driver, and maybe others */ + struct file *f_next, **f_pprev; + struct inode *f_inode; + struct file_operations *f_op; + mode_t f_mode; + loff_t f_pos; + unsigned short f_count, f_flags; + unsigned long f_reada, f_ramax, f_raend, f_ralen, f_rawin; + + /* pid or -pgrp where SIGIO should be sent */ + int f_owner; + + unsigned long f_version; + + /* needed for tty driver, and maybe others */ + void *private_data; }; #define FL_POSIX 1 @@ -584,7 +598,7 @@ extern int fs_may_mount(kdev_t dev); extern int fs_may_umount(kdev_t dev, struct inode * mount_root); extern int fs_may_remount_ro(kdev_t dev); -extern struct file *first_file; +extern struct file *inuse_filps; extern struct super_block super_blocks[NR_SUPER]; extern void refile_buffer(struct buffer_head * buf); @@ -597,15 +611,14 @@ extern int nr_buffer_heads; #define BUF_CLEAN 0 #define BUF_LOCKED 1 /* Buffers scheduled for write */ -#define BUF_LOCKED1 2 /* Supers, inodes */ -#define BUF_DIRTY 3 /* Dirty buffers, not yet scheduled for write */ -#define NR_LIST 4 +#define BUF_DIRTY 2 /* Dirty buffers, not yet scheduled for write */ +#define NR_LIST 3 void mark_buffer_uptodate(struct buffer_head * bh, int on); extern inline void mark_buffer_clean(struct buffer_head * bh) { - if (clear_bit(BH_Dirty, &bh->b_state)) { + if (test_and_clear_bit(BH_Dirty, &bh->b_state)) { if (bh->b_list == BUF_DIRTY) refile_buffer(bh); } @@ -613,7 +626,7 @@ extern inline void mark_buffer_clean(struct buffer_head * bh) extern inline void mark_buffer_dirty(struct buffer_head * bh, int flag) { - if (!set_bit(BH_Dirty, &bh->b_state)) { + if (!test_and_set_bit(BH_Dirty, &bh->b_state)) { set_writetime(bh, flag); if (bh->b_list != BUF_DIRTY) refile_buffer(bh); |