diff options
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/bio.h | 9 | ||||
| -rw-r--r-- | include/linux/buffer_head.h | 2 | ||||
| -rw-r--r-- | include/linux/dax.h | 11 | ||||
| -rw-r--r-- | include/linux/iomap.h | 27 | ||||
| -rw-r--r-- | include/uapi/linux/fs.h | 8 |
5 files changed, 44 insertions, 13 deletions
diff --git a/include/linux/bio.h b/include/linux/bio.h index 810a8bee8f85..397a38aca182 100644 --- a/include/linux/bio.h +++ b/include/linux/bio.h @@ -127,6 +127,11 @@ static inline void *bio_data(struct bio *bio) return NULL; } +static inline bool bio_full(struct bio *bio) +{ + return bio->bi_vcnt >= bio->bi_max_vecs; +} + /* * will die */ @@ -474,6 +479,10 @@ void bio_chain(struct bio *, struct bio *); extern int bio_add_page(struct bio *, struct page *, unsigned int,unsigned int); extern int bio_add_pc_page(struct request_queue *, struct bio *, struct page *, unsigned int, unsigned int); +bool __bio_try_merge_page(struct bio *bio, struct page *page, + unsigned int len, unsigned int off); +void __bio_add_page(struct bio *bio, struct page *page, + unsigned int len, unsigned int off); int bio_iov_iter_get_pages(struct bio *bio, struct iov_iter *iter); struct rq_map_data; extern struct bio *bio_map_user_iov(struct request_queue *, diff --git a/include/linux/buffer_head.h b/include/linux/buffer_head.h index 894e5d125de6..96225a77c112 100644 --- a/include/linux/buffer_head.h +++ b/include/linux/buffer_head.h @@ -205,8 +205,6 @@ void write_boundary_block(struct block_device *bdev, sector_t bblock, unsigned blocksize); int bh_uptodate_or_lock(struct buffer_head *bh); int bh_submit_read(struct buffer_head *bh); -loff_t page_cache_seek_hole_data(struct inode *inode, loff_t offset, - loff_t length, int whence); extern int buffer_heads_over_limit; diff --git a/include/linux/dax.h b/include/linux/dax.h index f9eb22ad341e..c99692ddd4b5 100644 --- a/include/linux/dax.h +++ b/include/linux/dax.h @@ -64,10 +64,10 @@ static inline bool dax_write_cache_enabled(struct dax_device *dax_dev) struct writeback_control; int bdev_dax_pgoff(struct block_device *, sector_t, size_t, pgoff_t *pgoff); #if IS_ENABLED(CONFIG_FS_DAX) -int __bdev_dax_supported(struct super_block *sb, int blocksize); -static inline int bdev_dax_supported(struct super_block *sb, int blocksize) +bool __bdev_dax_supported(struct block_device *bdev, int blocksize); +static inline bool bdev_dax_supported(struct block_device *bdev, int blocksize) { - return __bdev_dax_supported(sb, blocksize); + return __bdev_dax_supported(bdev, blocksize); } static inline struct dax_device *fs_dax_get_by_host(const char *host) @@ -84,9 +84,10 @@ struct dax_device *fs_dax_get_by_bdev(struct block_device *bdev); int dax_writeback_mapping_range(struct address_space *mapping, struct block_device *bdev, struct writeback_control *wbc); #else -static inline int bdev_dax_supported(struct super_block *sb, int blocksize) +static inline bool bdev_dax_supported(struct block_device *bdev, + int blocksize) { - return -EOPNOTSUPP; + return false; } static inline struct dax_device *fs_dax_get_by_host(const char *host) diff --git a/include/linux/iomap.h b/include/linux/iomap.h index 19a07de28212..a044a824da85 100644 --- a/include/linux/iomap.h +++ b/include/linux/iomap.h @@ -4,6 +4,7 @@ #include <linux/types.h> +struct address_space; struct fiemap_extent_info; struct inode; struct iov_iter; @@ -18,6 +19,7 @@ struct vm_fault; #define IOMAP_DELALLOC 0x02 /* delayed allocation blocks */ #define IOMAP_MAPPED 0x03 /* blocks allocated at @addr */ #define IOMAP_UNWRITTEN 0x04 /* blocks allocated at @addr in unwritten state */ +#define IOMAP_INLINE 0x05 /* data inline in the inode */ /* * Flags for all iomap mappings: @@ -26,15 +28,19 @@ struct vm_fault; * written data and requires fdatasync to commit them to persistent storage. */ #define IOMAP_F_NEW 0x01 /* blocks have been newly allocated */ -#define IOMAP_F_BOUNDARY 0x02 /* mapping ends at metadata boundary */ -#define IOMAP_F_DIRTY 0x04 /* uncommitted metadata */ +#define IOMAP_F_DIRTY 0x02 /* uncommitted metadata */ /* * Flags that only need to be reported for IOMAP_REPORT requests: */ #define IOMAP_F_MERGED 0x10 /* contains multiple blocks/extents */ #define IOMAP_F_SHARED 0x20 /* block shared with another file */ -#define IOMAP_F_DATA_INLINE 0x40 /* data inline in the inode */ + +/* + * Flags from 0x1000 up are for file system specific usage: + */ +#define IOMAP_F_PRIVATE 0x1000 + /* * Magic value for addr: @@ -59,7 +65,7 @@ struct iomap { #define IOMAP_REPORT (1 << 2) /* report extent status, e.g. FIEMAP */ #define IOMAP_FAULT (1 << 3) /* mapping for page fault */ #define IOMAP_DIRECT (1 << 4) /* direct I/O */ -#define IOMAP_NOWAIT (1 << 5) /* Don't wait for writeback */ +#define IOMAP_NOWAIT (1 << 5) /* do not block */ struct iomap_ops { /* @@ -95,6 +101,8 @@ loff_t iomap_seek_hole(struct inode *inode, loff_t offset, const struct iomap_ops *ops); loff_t iomap_seek_data(struct inode *inode, loff_t offset, const struct iomap_ops *ops); +sector_t iomap_bmap(struct address_space *mapping, sector_t bno, + const struct iomap_ops *ops); /* * Flags for direct I/O ->end_io: @@ -106,4 +114,15 @@ typedef int (iomap_dio_end_io_t)(struct kiocb *iocb, ssize_t ret, ssize_t iomap_dio_rw(struct kiocb *iocb, struct iov_iter *iter, const struct iomap_ops *ops, iomap_dio_end_io_t end_io); +#ifdef CONFIG_SWAP +struct file; +struct swap_info_struct; + +int iomap_swapfile_activate(struct swap_info_struct *sis, + struct file *swap_file, sector_t *pagespan, + const struct iomap_ops *ops); +#else +# define iomap_swapfile_activate(sis, swapfile, pagespan, ops) (-EIO) +#endif /* CONFIG_SWAP */ + #endif /* LINUX_IOMAP_H */ diff --git a/include/uapi/linux/fs.h b/include/uapi/linux/fs.h index d2a8313fabd7..9d132f8f2df8 100644 --- a/include/uapi/linux/fs.h +++ b/include/uapi/linux/fs.h @@ -242,6 +242,8 @@ struct fsxattr { #define FICLONERANGE _IOW(0x94, 13, struct file_clone_range) #define FIDEDUPERANGE _IOWR(0x94, 54, struct file_dedupe_range) +#define FSLABEL_MAX 256 /* Max chars for the interface; each fs may differ */ + #define FS_IOC_GETFLAGS _IOR('f', 1, long) #define FS_IOC_SETFLAGS _IOW('f', 2, long) #define FS_IOC_GETVERSION _IOR('v', 1, long) @@ -251,8 +253,10 @@ struct fsxattr { #define FS_IOC32_SETFLAGS _IOW('f', 2, int) #define FS_IOC32_GETVERSION _IOR('v', 1, int) #define FS_IOC32_SETVERSION _IOW('v', 2, int) -#define FS_IOC_FSGETXATTR _IOR ('X', 31, struct fsxattr) -#define FS_IOC_FSSETXATTR _IOW ('X', 32, struct fsxattr) +#define FS_IOC_FSGETXATTR _IOR('X', 31, struct fsxattr) +#define FS_IOC_FSSETXATTR _IOW('X', 32, struct fsxattr) +#define FS_IOC_GETFSLABEL _IOR(0x94, 49, char[FSLABEL_MAX]) +#define FS_IOC_SETFSLABEL _IOW(0x94, 50, char[FSLABEL_MAX]) /* * File system encryption support |