Commit efbe3c24 authored by Ira Weiny's avatar Ira Weiny Committed by Darrick J. Wong

fs: Remove unneeded IS_DAX() check in io_is_direct()

Remove the check because DAX now has it's own read/write methods and
file systems which support DAX check IS_DAX() prior to IOCB_DIRECT on
their own.  Therefore, it does not matter if the file state is DAX when
the iocb flags are created.

Also remove io_is_direct() as it is just a simple flag check.
Reviewed-by: default avatarDave Chinner <dchinner@redhat.com>
Reviewed-by: default avatarJan Kara <jack@suse.cz>
Reviewed-by: default avatarDarrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: default avatarChristoph Hellwig <hch@lst.de>
Signed-off-by: default avatarIra Weiny <ira.weiny@intel.com>
Signed-off-by: default avatarDarrick J. Wong <darrick.wong@oracle.com>
parent 0e698dfa
...@@ -634,7 +634,7 @@ static int do_req_filebacked(struct loop_device *lo, struct request *rq) ...@@ -634,7 +634,7 @@ static int do_req_filebacked(struct loop_device *lo, struct request *rq)
static inline void loop_update_dio(struct loop_device *lo) static inline void loop_update_dio(struct loop_device *lo)
{ {
__loop_update_dio(lo, io_is_direct(lo->lo_backing_file) | __loop_update_dio(lo, (lo->lo_backing_file->f_flags & O_DIRECT) |
lo->use_dio); lo->use_dio);
} }
...@@ -1028,7 +1028,7 @@ static int loop_set_fd(struct loop_device *lo, fmode_t mode, ...@@ -1028,7 +1028,7 @@ static int loop_set_fd(struct loop_device *lo, fmode_t mode,
if (!(lo_flags & LO_FLAGS_READ_ONLY) && file->f_op->fsync) if (!(lo_flags & LO_FLAGS_READ_ONLY) && file->f_op->fsync)
blk_queue_write_cache(lo->lo_queue, true, false); blk_queue_write_cache(lo->lo_queue, true, false);
if (io_is_direct(lo->lo_backing_file) && inode->i_sb->s_bdev) { if ((lo->lo_backing_file->f_flags & O_DIRECT) && inode->i_sb->s_bdev) {
/* In case of direct I/O, match underlying block size */ /* In case of direct I/O, match underlying block size */
unsigned short bsize = bdev_logical_block_size( unsigned short bsize = bdev_logical_block_size(
inode->i_sb->s_bdev); inode->i_sb->s_bdev);
......
...@@ -3394,11 +3394,6 @@ extern void setattr_copy(struct inode *inode, const struct iattr *attr); ...@@ -3394,11 +3394,6 @@ extern void setattr_copy(struct inode *inode, const struct iattr *attr);
extern int file_update_time(struct file *file); extern int file_update_time(struct file *file);
static inline bool io_is_direct(struct file *filp)
{
return (filp->f_flags & O_DIRECT) || IS_DAX(filp->f_mapping->host);
}
static inline bool vma_is_dax(const struct vm_area_struct *vma) static inline bool vma_is_dax(const struct vm_area_struct *vma)
{ {
return vma->vm_file && IS_DAX(vma->vm_file->f_mapping->host); return vma->vm_file && IS_DAX(vma->vm_file->f_mapping->host);
...@@ -3423,7 +3418,7 @@ static inline int iocb_flags(struct file *file) ...@@ -3423,7 +3418,7 @@ static inline int iocb_flags(struct file *file)
int res = 0; int res = 0;
if (file->f_flags & O_APPEND) if (file->f_flags & O_APPEND)
res |= IOCB_APPEND; res |= IOCB_APPEND;
if (io_is_direct(file)) if (file->f_flags & O_DIRECT)
res |= IOCB_DIRECT; res |= IOCB_DIRECT;
if ((file->f_flags & O_DSYNC) || IS_SYNC(file->f_mapping->host)) if ((file->f_flags & O_DSYNC) || IS_SYNC(file->f_mapping->host))
res |= IOCB_DSYNC; res |= IOCB_DSYNC;
......
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