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-rw-r--r--include/linux/fs.h41
1 files changed, 29 insertions, 12 deletions
diff --git a/include/linux/fs.h b/include/linux/fs.h
index f4fc607..f4d6354 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -315,6 +315,8 @@ struct address_space;
struct writeback_control;
#define IOCB_EVENTFD (1 << 0)
+#define IOCB_APPEND (1 << 1)
+#define IOCB_DIRECT (1 << 2)
struct kiocb {
struct file *ki_filp;
@@ -329,10 +331,13 @@ static inline bool is_sync_kiocb(struct kiocb *kiocb)
return kiocb->ki_complete == NULL;
}
+static inline int iocb_flags(struct file *file);
+
static inline void init_sync_kiocb(struct kiocb *kiocb, struct file *filp)
{
*kiocb = (struct kiocb) {
.ki_filp = filp,
+ .ki_flags = iocb_flags(filp),
};
}
@@ -383,7 +388,7 @@ struct address_space_operations {
void (*invalidatepage) (struct page *, unsigned int, unsigned int);
int (*releasepage) (struct page *, gfp_t);
void (*freepage)(struct page *);
- ssize_t (*direct_IO)(int, struct kiocb *, struct iov_iter *iter, loff_t offset);
+ ssize_t (*direct_IO)(struct kiocb *, struct iov_iter *iter, loff_t offset);
/*
* migrate the contents of a page to the specified target. If
* migrate_mode is MIGRATE_ASYNC, it must not block.
@@ -2566,7 +2571,7 @@ extern int sb_min_blocksize(struct super_block *, int);
extern int generic_file_mmap(struct file *, struct vm_area_struct *);
extern int generic_file_readonly_mmap(struct file *, struct vm_area_struct *);
-int generic_write_checks(struct file *file, loff_t *pos, size_t *count, int isblk);
+extern ssize_t generic_write_checks(struct kiocb *, struct iov_iter *);
extern ssize_t generic_file_read_iter(struct kiocb *, struct iov_iter *);
extern ssize_t __generic_file_write_iter(struct kiocb *, struct iov_iter *);
extern ssize_t generic_file_write_iter(struct kiocb *, struct iov_iter *);
@@ -2609,8 +2614,8 @@ extern loff_t fixed_size_llseek(struct file *file, loff_t offset,
extern int generic_file_open(struct inode * inode, struct file * filp);
extern int nonseekable_open(struct inode * inode, struct file * filp);
-ssize_t dax_do_io(int rw, struct kiocb *, struct inode *, struct iov_iter *,
- loff_t, get_block_t, dio_iodone_t, int flags);
+ssize_t dax_do_io(struct kiocb *, struct inode *, struct iov_iter *, loff_t,
+ get_block_t, dio_iodone_t, int flags);
int dax_clear_blocks(struct inode *, sector_t block, long size);
int dax_zero_page_range(struct inode *, loff_t from, unsigned len, get_block_t);
int dax_truncate_page(struct inode *, loff_t from, get_block_t);
@@ -2635,16 +2640,18 @@ enum {
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, struct iov_iter *iter, loff_t offset,
- get_block_t get_block, dio_iodone_t end_io,
- dio_submit_t submit_io, int flags);
+ssize_t __blockdev_direct_IO(struct kiocb *iocb, struct inode *inode,
+ struct block_device *bdev, struct iov_iter *iter,
+ loff_t offset, get_block_t get_block,
+ dio_iodone_t end_io, dio_submit_t submit_io,
+ int flags);
-static inline ssize_t blockdev_direct_IO(int rw, struct kiocb *iocb,
- struct inode *inode, struct iov_iter *iter, loff_t offset,
- get_block_t get_block)
+static inline ssize_t blockdev_direct_IO(struct kiocb *iocb,
+ struct inode *inode,
+ struct iov_iter *iter, loff_t offset,
+ get_block_t get_block)
{
- return __blockdev_direct_IO(rw, iocb, inode, inode->i_sb->s_bdev, iter,
+ return __blockdev_direct_IO(iocb, inode, inode->i_sb->s_bdev, iter,
offset, get_block, NULL, NULL,
DIO_LOCKING | DIO_SKIP_HOLES);
}
@@ -2777,6 +2784,16 @@ static inline bool io_is_direct(struct file *filp)
return (filp->f_flags & O_DIRECT) || IS_DAX(file_inode(filp));
}
+static inline int iocb_flags(struct file *file)
+{
+ int res = 0;
+ if (file->f_flags & O_APPEND)
+ res |= IOCB_APPEND;
+ if (io_is_direct(file))
+ res |= IOCB_DIRECT;
+ return res;
+}
+
static inline ino_t parent_ino(struct dentry *dentry)
{
ino_t res;
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