diff options
Diffstat (limited to 'include/linux/fs.h')
| -rw-r--r-- | include/linux/fs.h | 51 |
1 files changed, 32 insertions, 19 deletions
diff --git a/include/linux/fs.h b/include/linux/fs.h index c0e53372b082..17fd887c798f 100644 --- a/include/linux/fs.h +++ b/include/linux/fs.h @@ -173,6 +173,15 @@ struct inodes_stat_t { #define WRITE_FUA (WRITE | REQ_SYNC | REQ_NOIDLE | REQ_FUA) #define WRITE_FLUSH_FUA (WRITE | REQ_SYNC | REQ_NOIDLE | REQ_FLUSH | REQ_FUA) + +/* + * Flag for rw_copy_check_uvector and compat_rw_copy_check_uvector + * that indicates that they should check the contents of the iovec are + * valid, but not check the memory that the iovec elements + * points too. + */ +#define CHECK_IOVEC_ONLY -1 + #define SEL_IN 1 #define SEL_OUT 2 #define SEL_EX 4 @@ -793,13 +802,14 @@ struct inode { unsigned int __i_nlink; }; dev_t i_rdev; + loff_t i_size; struct timespec i_atime; struct timespec i_mtime; struct timespec i_ctime; spinlock_t i_lock; /* i_blocks, i_bytes, maybe i_size */ unsigned short i_bytes; + unsigned int i_blkbits; blkcnt_t i_blocks; - loff_t i_size; #ifdef __NEED_I_SIZE_ORDERED seqcount_t i_size_seqcount; @@ -819,9 +829,8 @@ struct inode { struct list_head i_dentry; struct rcu_head i_rcu; }; - atomic_t i_count; - unsigned int i_blkbits; u64 i_version; + atomic_t i_count; atomic_t i_dio_count; atomic_t i_writecount; const struct file_operations *i_fop; /* former ->i_op->default_file_ops */ @@ -1681,9 +1690,9 @@ struct inode_operations { ssize_t (*getxattr) (struct dentry *, const char *, void *, size_t); ssize_t (*listxattr) (struct dentry *, char *, size_t); int (*removexattr) (struct dentry *, const char *); - void (*truncate_range)(struct inode *, loff_t, loff_t); int (*fiemap)(struct inode *, struct fiemap_extent_info *, u64 start, u64 len); + int (*update_time)(struct inode *, struct timespec *, int); } ____cacheline_aligned; struct seq_file; @@ -1691,8 +1700,7 @@ struct seq_file; ssize_t rw_copy_check_uvector(int type, const struct iovec __user * uvector, unsigned long nr_segs, unsigned long fast_segs, struct iovec *fast_pointer, - struct iovec **ret_pointer, - int check_access); + struct iovec **ret_pointer); extern ssize_t vfs_read(struct file *, char __user *, size_t, loff_t *); extern ssize_t vfs_write(struct file *, const char __user *, size_t, loff_t *); @@ -1764,8 +1772,8 @@ struct super_operations { * I_FREEING Set when inode is about to be freed but still has dirty * pages or buffers attached or the inode itself is still * dirty. - * I_CLEAR Added by end_writeback(). In this state the inode is clean - * and can be destroyed. Inode keeps I_FREEING. + * I_CLEAR Added by clear_inode(). In this state the inode is + * clean and can be destroyed. Inode keeps I_FREEING. * * Inodes that are I_WILL_FREE, I_FREEING or I_CLEAR are * prohibited for many purposes. iget() must wait for @@ -1773,9 +1781,10 @@ struct super_operations { * anew. Other functions will just ignore such inodes, * if appropriate. I_NEW is used for waiting. * - * I_SYNC Synchonized write of dirty inode data. The bits is - * set during data writeback, and cleared with a wakeup - * on the bit address once it is done. + * I_SYNC Writeback of inode is running. The bit is set during + * data writeback, and cleared with a wakeup on the bit + * address once it is done. The bit is also used to pin + * the inode in memory for flusher thread. * * I_REFERENCED Marks the inode as recently references on the LRU list. * @@ -1842,6 +1851,13 @@ static inline void inode_inc_iversion(struct inode *inode) spin_unlock(&inode->i_lock); } +enum file_time_flags { + S_ATIME = 1, + S_MTIME = 2, + S_CTIME = 4, + S_VERSION = 8, +}; + extern void touch_atime(struct path *); static inline void file_accessed(struct file *file) { @@ -2349,7 +2365,7 @@ extern unsigned int get_next_ino(void); extern void __iget(struct inode * inode); extern void iget_failed(struct inode *); -extern void end_writeback(struct inode *); +extern void clear_inode(struct inode *); extern void __destroy_inode(struct inode *); extern struct inode *new_inode_pseudo(struct super_block *sb); extern struct inode *new_inode(struct super_block *sb); @@ -2453,8 +2469,6 @@ enum { }; void dio_end_io(struct bio *bio, int error); -void inode_dio_wait(struct inode *inode); -void inode_dio_done(struct inode *inode); ssize_t __blockdev_direct_IO(int rw, struct kiocb *iocb, struct inode *inode, struct block_device *bdev, const struct iovec *iov, loff_t offset, @@ -2469,12 +2483,11 @@ static inline ssize_t blockdev_direct_IO(int rw, struct kiocb *iocb, offset, nr_segs, get_block, NULL, NULL, DIO_LOCKING | DIO_SKIP_HOLES); } -#else -static inline void inode_dio_wait(struct inode *inode) -{ -} #endif +void inode_dio_wait(struct inode *inode); +void inode_dio_done(struct inode *inode); + extern const struct file_operations generic_ro_fops; #define special_file(m) (S_ISCHR(m)||S_ISBLK(m)||S_ISFIFO(m)||S_ISSOCK(m)) @@ -2578,7 +2591,7 @@ extern int inode_change_ok(const struct inode *, struct iattr *); extern int inode_newsize_ok(const struct inode *, loff_t offset); extern void setattr_copy(struct inode *inode, const struct iattr *attr); -extern void file_update_time(struct file *file); +extern int file_update_time(struct file *file); extern int generic_show_options(struct seq_file *m, struct dentry *root); extern void save_mount_options(struct super_block *sb, char *options); |
