diff options
Diffstat (limited to 'fs/ext4/ext4.h')
| -rw-r--r-- | fs/ext4/ext4.h | 21 |
1 files changed, 16 insertions, 5 deletions
diff --git a/fs/ext4/ext4.h b/fs/ext4/ext4.h index 349afebe2..b84aa1ca4 100644 --- a/fs/ext4/ext4.h +++ b/fs/ext4/ext4.h @@ -33,6 +33,7 @@ #include <linux/ratelimit.h> #include <crypto/hash.h> #include <linux/falloc.h> +#include <linux/percpu-rwsem.h> #ifdef __KERNEL__ #include <linux/compat.h> #endif @@ -581,6 +582,9 @@ enum { #define EXT4_GET_BLOCKS_ZERO 0x0200 #define EXT4_GET_BLOCKS_CREATE_ZERO (EXT4_GET_BLOCKS_CREATE |\ EXT4_GET_BLOCKS_ZERO) + /* Caller will submit data before dropping transaction handle. This + * allows jbd2 to avoid submitting data before commit. */ +#define EXT4_GET_BLOCKS_IO_SUBMIT 0x0400 /* * The bit position of these flags must not overlap with any of the @@ -1505,6 +1509,9 @@ struct ext4_sb_info { struct ratelimit_state s_err_ratelimit_state; struct ratelimit_state s_warning_ratelimit_state; struct ratelimit_state s_msg_ratelimit_state; + + /* Barrier between changing inodes' journal flags and writepages ops. */ + struct percpu_rw_semaphore s_journal_flag_rwsem; }; static inline struct ext4_sb_info *EXT4_SB(struct super_block *sb) @@ -1549,7 +1556,6 @@ enum { EXT4_STATE_DIOREAD_LOCK, /* Disable support for dio read nolocking */ EXT4_STATE_MAY_INLINE_DATA, /* may have in-inode data */ - EXT4_STATE_ORDERED_MODE, /* data=ordered mode */ EXT4_STATE_EXT_PRECACHED, /* extents have been precached */ }; @@ -2521,8 +2527,8 @@ struct buffer_head *ext4_getblk(handle_t *, struct inode *, ext4_lblk_t, int); struct buffer_head *ext4_bread(handle_t *, struct inode *, ext4_lblk_t, int); int ext4_get_block_unwritten(struct inode *inode, sector_t iblock, struct buffer_head *bh_result, int create); -int ext4_dax_mmap_get_block(struct inode *inode, sector_t iblock, - struct buffer_head *bh_result, int create); +int ext4_dax_get_block(struct inode *inode, sector_t iblock, + struct buffer_head *bh_result, int create); int ext4_get_block(struct inode *inode, sector_t iblock, struct buffer_head *bh_result, int create); int ext4_dio_get_block(struct inode *inode, sector_t iblock, @@ -2581,8 +2587,6 @@ extern int ext4_get_next_extent(struct inode *inode, ext4_lblk_t lblk, /* indirect.c */ extern int ext4_ind_map_blocks(handle_t *handle, struct inode *inode, struct ext4_map_blocks *map, int flags); -extern ssize_t ext4_ind_direct_IO(struct kiocb *iocb, struct iov_iter *iter, - loff_t offset); extern int ext4_ind_calc_metadata_amount(struct inode *inode, sector_t lblock); extern int ext4_ind_trans_blocks(struct inode *inode, int nrblocks); extern void ext4_ind_truncate(handle_t *, struct inode *inode); @@ -3330,6 +3334,13 @@ static inline void ext4_clear_io_unwritten_flag(ext4_io_end_t *io_end) } } +static inline bool ext4_aligned_io(struct inode *inode, loff_t off, loff_t len) +{ + int blksize = 1 << inode->i_blkbits; + + return IS_ALIGNED(off, blksize) && IS_ALIGNED(len, blksize); +} + #endif /* __KERNEL__ */ #define EFSBADCRC EBADMSG /* Bad CRC detected */ |