#include <linux/limits.h>
#include <linux/ioctl.h>
+#include <linux/blk_types.h>
/*
* It's silly to have NR_OPEN bigger than NR_FILE, but you can change
#define MAY_APPEND 8
#define MAY_ACCESS 16
#define MAY_OPEN 32
+#define MAY_CHDIR 64
/*
* flags in file.f_mode. Note that FMODE_READ and FMODE_WRITE must correspond
/* Expect random access pattern */
#define FMODE_RANDOM ((__force fmode_t)0x1000)
+/* File was opened by fanotify and shouldn't generate fanotify events */
+#define FMODE_NONOTIFY ((__force fmode_t)0x1000000)
+
/*
* The below are the various read and write types that we support. Some of
* them include behavioral modifiers that send information down to the
* immediately wait on this read without caring about
* unplugging.
* READA Used for read-ahead operations. Lower priority, and the
- * block layer could (in theory) choose to ignore this
+ * block layer could (in theory) choose to ignore this
* request if it runs into resource problems.
* WRITE A normal async write. Device will be plugged.
- * SWRITE Like WRITE, but a special case for ll_rw_block() that
- * tells it to lock the buffer first. Normally a buffer
- * must be locked before doing IO.
* WRITE_SYNC_PLUG Synchronous write. Identical to WRITE, but passes down
* the hint that someone will be waiting on this IO
* shortly. The device must still be unplugged explicitly,
* immediately after submission. The write equivalent
* of READ_SYNC.
* WRITE_ODIRECT_PLUG Special case write for O_DIRECT only.
- * SWRITE_SYNC
- * SWRITE_SYNC_PLUG Like WRITE_SYNC/WRITE_SYNC_PLUG, but locks the buffer.
- * See SWRITE.
- * WRITE_BARRIER Like WRITE, but tells the block layer that all
+ * WRITE_BARRIER Like WRITE_SYNC, but tells the block layer that all
* previously submitted writes must be safely on storage
* before this one is started. Also guarantees that when
* this write is complete, it itself is also safely on
* of this IO.
*
*/
-#define RW_MASK 1
-#define RWA_MASK 2
-#define READ 0
-#define WRITE 1
-#define READA 2 /* read-ahead - don't block if no resources */
-#define SWRITE 3 /* for ll_rw_block() - wait for buffer lock */
-#define READ_SYNC (READ | (1 << BIO_RW_SYNCIO) | (1 << BIO_RW_UNPLUG))
-#define READ_META (READ | (1 << BIO_RW_META))
-#define WRITE_SYNC_PLUG (WRITE | (1 << BIO_RW_SYNCIO) | (1 << BIO_RW_NOIDLE))
-#define WRITE_SYNC (WRITE_SYNC_PLUG | (1 << BIO_RW_UNPLUG))
-#define WRITE_ODIRECT_PLUG (WRITE | (1 << BIO_RW_SYNCIO))
-#define WRITE_META (WRITE | (1 << BIO_RW_META))
-#define SWRITE_SYNC_PLUG \
- (SWRITE | (1 << BIO_RW_SYNCIO) | (1 << BIO_RW_NOIDLE))
-#define SWRITE_SYNC (SWRITE_SYNC_PLUG | (1 << BIO_RW_UNPLUG))
-#define WRITE_BARRIER (WRITE | (1 << BIO_RW_BARRIER))
+#define RW_MASK REQ_WRITE
+#define RWA_MASK REQ_RAHEAD
+
+#define READ 0
+#define WRITE RW_MASK
+#define READA RWA_MASK
+
+#define READ_SYNC (READ | REQ_SYNC | REQ_UNPLUG)
+#define READ_META (READ | REQ_META)
+#define WRITE_SYNC_PLUG (WRITE | REQ_SYNC | REQ_NOIDLE)
+#define WRITE_SYNC (WRITE | REQ_SYNC | REQ_NOIDLE | REQ_UNPLUG)
+#define WRITE_ODIRECT_PLUG (WRITE | REQ_SYNC)
+#define WRITE_META (WRITE | REQ_META)
+#define WRITE_BARRIER (WRITE | REQ_SYNC | REQ_NOIDLE | REQ_UNPLUG | \
+ REQ_HARDBARRIER)
/*
* These aren't really reads or writes, they pass down information about
* parts of device that are now unused by the file system.
*/
-#define DISCARD_NOBARRIER (WRITE | (1 << BIO_RW_DISCARD))
-#define DISCARD_BARRIER (DISCARD_NOBARRIER | (1 << BIO_RW_BARRIER))
+#define DISCARD_NOBARRIER (WRITE | REQ_DISCARD)
+#define DISCARD_BARRIER (WRITE | REQ_DISCARD | REQ_HARDBARRIER)
+#define DISCARD_SECURE (DISCARD_NOBARRIER | REQ_SECURE)
#define SEL_IN 1
#define SEL_OUT 2
#define MS_KERNMOUNT (1<<22) /* this is a kern_mount call */
#define MS_I_VERSION (1<<23) /* Update inode I_version field */
#define MS_STRICTATIME (1<<24) /* Always perform atime updates */
+#define MS_BORN (1<<29)
#define MS_ACTIVE (1<<30)
#define MS_NOUSER (1<<31)
#define BLKALIGNOFF _IO(0x12,122)
#define BLKPBSZGET _IO(0x12,123)
#define BLKDISCARDZEROES _IO(0x12,124)
+#define BLKSECDISCARD _IO(0x12,125)
#define BMAP_IOCTL 1 /* obsolete - kept for compatibility */
#define FIBMAP _IO(0x00,1) /* bmap access */
extern int sysctl_nr_open;
extern struct inodes_stat_t inodes_stat;
extern int leases_enable, lease_break_time;
-#ifdef CONFIG_DNOTIFY
-extern int dir_notify_enable;
-#endif
struct buffer_head;
typedef int (get_block_t)(struct inode *inode, sector_t iblock,
struct buffer_head *bh_result, int create);
typedef void (dio_iodone_t)(struct kiocb *iocb, loff_t offset,
- ssize_t bytes, void *private);
+ ssize_t bytes, void *private, int ret,
+ bool is_async);
/*
* Attribute flags. These should be or-ed together to figure out what
*/
#define PAGECACHE_TAG_DIRTY 0
#define PAGECACHE_TAG_WRITEBACK 1
+#define PAGECACHE_TAG_TOWRITE 2
int mapping_tagged(struct address_space *mapping, int tag);
#ifdef CONFIG_FSNOTIFY
__u32 i_fsnotify_mask; /* all events this inode cares about */
- struct hlist_head i_fsnotify_mark_entries; /* fsnotify mark entries */
-#endif
-
-#ifdef CONFIG_INOTIFY
- struct list_head inotify_watches; /* watches on this inode */
- struct mutex inotify_mutex; /* protects the watches list */
+ struct hlist_head i_fsnotify_marks;
#endif
unsigned long i_state;
/*
* NOTE:
- * read, write, poll, fsync, readv, writev, unlocked_ioctl and compat_ioctl
- * can be called without the big kernel lock held in all filesystems.
+ * all file operations except setlease can be called without
+ * the big kernel lock held in all filesystems.
*/
struct file_operations {
struct module *owner;
ssize_t (*aio_write) (struct kiocb *, const struct iovec *, unsigned long, loff_t);
int (*readdir) (struct file *, void *, filldir_t);
unsigned int (*poll) (struct file *, struct poll_table_struct *);
- int (*ioctl) (struct inode *, struct file *, unsigned int, unsigned long);
long (*unlocked_ioctl) (struct file *, unsigned int, unsigned long);
long (*compat_ioctl) (struct file *, unsigned int, unsigned long);
int (*mmap) (struct file *, struct vm_area_struct *);
void (*dirty_inode) (struct inode *);
int (*write_inode) (struct inode *, struct writeback_control *wbc);
- void (*drop_inode) (struct inode *);
- void (*delete_inode) (struct inode *);
+ int (*drop_inode) (struct inode *);
+ void (*evict_inode) (struct inode *);
void (*put_super) (struct super_block *);
void (*write_super) (struct super_block *);
int (*sync_fs)(struct super_block *sb, int wait);
int (*unfreeze_fs) (struct super_block *);
int (*statfs) (struct dentry *, struct kstatfs *);
int (*remount_fs) (struct super_block *, int *, char *);
- void (*clear_inode) (struct inode *);
void (*umount_begin) (struct super_block *);
int (*show_options)(struct seq_file *, struct vfsmount *);
* 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 Set by clear_inode(). In this state the inode is clean
- * and can be destroyed.
+ * I_CLEAR Added by end_writeback(). 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
extern void drop_collected_mounts(struct vfsmount *);
extern int iterate_mounts(int (*)(struct vfsmount *, void *), void *,
struct vfsmount *);
-extern int vfs_statfs(struct dentry *, struct kstatfs *);
+extern int vfs_statfs(struct path *, struct kstatfs *);
+extern int statfs_by_dentry(struct dentry *, struct kstatfs *);
extern int freeze_super(struct super_block *super);
extern int thaw_super(struct super_block *super);
extern struct inode * igrab(struct inode *);
extern ino_t iunique(struct super_block *, ino_t);
extern int inode_needs_sync(struct inode *inode);
-extern void generic_delete_inode(struct inode *inode);
-extern void generic_drop_inode(struct inode *inode);
-extern int generic_detach_inode(struct inode *inode);
+extern int generic_delete_inode(struct inode *inode);
+extern int generic_drop_inode(struct inode *inode);
extern struct inode *ilookup5_nowait(struct super_block *sb,
unsigned long hashval, int (*test)(struct inode *, void *),
extern void __iget(struct inode * inode);
extern void iget_failed(struct inode *);
-extern void clear_inode(struct inode *);
+extern void end_writeback(struct inode *);
extern void destroy_inode(struct inode *);
extern void __destroy_inode(struct inode *);
extern struct inode *new_inode(struct super_block *);
extern void file_move(struct file *f, struct list_head *list);
extern void file_kill(struct file *f);
#ifdef CONFIG_BLOCK
-struct bio;
extern void submit_bio(int, struct bio *);
extern int bdev_read_only(struct block_device *);
#endif
#endif
#ifdef CONFIG_BLOCK
-struct bio;
typedef void (dio_submit_t)(int rw, struct bio *bio, struct inode *inode,
loff_t file_offset);
-void dio_end_io(struct bio *bio, int error);
-
-ssize_t __blockdev_direct_IO_newtrunc(int rw, struct kiocb *iocb, struct inode *inode,
- struct block_device *bdev, const struct iovec *iov, loff_t offset,
- unsigned long nr_segs, get_block_t get_block, dio_iodone_t end_io,
- dio_submit_t submit_io, int lock_type);
-ssize_t __blockdev_direct_IO(int rw, struct kiocb *iocb, struct inode *inode,
- struct block_device *bdev, const struct iovec *iov, loff_t offset,
- unsigned long nr_segs, get_block_t get_block, dio_iodone_t end_io,
- dio_submit_t submit_io, int lock_type);
enum {
/* need locking between buffered and direct access */
DIO_SKIP_HOLES = 0x02,
};
-static inline ssize_t blockdev_direct_IO_newtrunc(int rw, struct kiocb *iocb,
- struct inode *inode, struct block_device *bdev, const struct iovec *iov,
- loff_t offset, unsigned long nr_segs, get_block_t get_block,
- dio_iodone_t end_io)
-{
- return __blockdev_direct_IO_newtrunc(rw, iocb, inode, bdev, iov, offset,
- nr_segs, get_block, end_io, NULL,
- DIO_LOCKING | DIO_SKIP_HOLES);
-}
+void dio_end_io(struct bio *bio, int error);
+
+ssize_t __blockdev_direct_IO(int rw, struct kiocb *iocb, struct inode *inode,
+ struct block_device *bdev, const struct iovec *iov, loff_t offset,
+ unsigned long nr_segs, get_block_t get_block, dio_iodone_t end_io,
+ dio_submit_t submit_io, int flags);
-static inline ssize_t blockdev_direct_IO_no_locking_newtrunc(int rw, struct kiocb *iocb,
- struct inode *inode, struct block_device *bdev, const struct iovec *iov,
- loff_t offset, unsigned long nr_segs, get_block_t get_block,
- dio_iodone_t end_io)
-{
- return __blockdev_direct_IO_newtrunc(rw, iocb, inode, bdev, iov, offset,
- nr_segs, get_block, end_io, NULL, 0);
-}
static inline ssize_t blockdev_direct_IO(int rw, struct kiocb *iocb,
struct inode *inode, struct block_device *bdev, const struct iovec *iov,
loff_t offset, unsigned long nr_segs, get_block_t get_block,
nr_segs, get_block, end_io, NULL,
DIO_LOCKING | DIO_SKIP_HOLES);
}
-
-static inline ssize_t blockdev_direct_IO_no_locking(int rw, struct kiocb *iocb,
- struct inode *inode, struct block_device *bdev, const struct iovec *iov,
- loff_t offset, unsigned long nr_segs, get_block_t get_block,
- dio_iodone_t end_io)
-{
- return __blockdev_direct_IO(rw, iocb, inode, bdev, iov, offset,
- nr_segs, get_block, end_io, NULL, 0);
-}
#endif
extern const struct file_operations generic_ro_fops;
extern int vfs_readdir(struct file *, filldir_t, void *);
-extern int vfs_stat(char __user *, struct kstat *);
-extern int vfs_lstat(char __user *, struct kstat *);
+extern int vfs_stat(const char __user *, struct kstat *);
+extern int vfs_lstat(const char __user *, struct kstat *);
extern int vfs_fstat(unsigned int, struct kstat *);
-extern int vfs_fstatat(int , char __user *, struct kstat *, int);
+extern int vfs_fstatat(int , const char __user *, struct kstat *, int);
extern int do_vfs_ioctl(struct file *filp, unsigned int fd, unsigned int cmd,
unsigned long arg);
extern int simple_unlink(struct inode *, struct dentry *);
extern int simple_rmdir(struct inode *, struct dentry *);
extern int simple_rename(struct inode *, struct dentry *, struct inode *, struct dentry *);
-extern int simple_setsize(struct inode *, loff_t);
extern int noop_fsync(struct file *, int);
extern int simple_empty(struct dentry *);
extern int simple_readpage(struct file *file, struct page *page);
extern int inode_change_ok(const struct inode *, struct iattr *);
extern int inode_newsize_ok(const struct inode *, loff_t offset);
-extern int __must_check inode_setattr(struct inode *, const struct iattr *);
-extern void generic_setattr(struct inode *inode, const struct iattr *attr);
+extern void setattr_copy(struct inode *inode, const struct iattr *attr);
extern void file_update_time(struct file *file);
int __init get_filesystem_list(char *buf);
#define ACC_MODE(x) ("\004\002\006\006"[(x)&O_ACCMODE])
-#define OPEN_FMODE(flag) ((__force fmode_t)((flag + 1) & O_ACCMODE))
+#define OPEN_FMODE(flag) ((__force fmode_t)(((flag + 1) & O_ACCMODE) | \
+ (flag & FMODE_NONOTIFY)))
#endif /* __KERNEL__ */
#endif /* _LINUX_FS_H */
projects / cascardo / linux.git / blobdiff