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Subject[PATCH V4 03/13] fs: Remove unneeded IS_DAX() check
Date
From: Ira Weiny <ira.weiny@intel.com>

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.

Reviewed-by: Jan Kara <jack@suse.cz>
Signed-off-by: Ira Weiny <ira.weiny@intel.com>

---
Changes from v3:
Reword commit message.
Reordered to be a 'pre-cleanup' patch
---
include/linux/fs.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/linux/fs.h b/include/linux/fs.h
index 3cd4fe6b845e..63d1e533a07d 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -3388,7 +3388,7 @@ 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);
+ return (filp->f_flags & O_DIRECT);
}

static inline bool vma_is_dax(struct vm_area_struct *vma)
--
2.21.0
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