fs: Separate out kiocb flags setup based on RWF_* flags

Also added RWF_SUPPORTED to encompass all flags.

Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Jan Kara <jack@suse.cz>
Signed-off-by: Goldwyn Rodrigues <rgoldwyn@suse.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>

1 files changed, 14 insertions, 0 deletions

diff --git a/include/linux/fs.h b/include/linux/fs.h
index 023f0324762b..96a1a1fa54a9 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -3057,6 +3057,20 @@ static inline int iocb_flags(struct file *file)
         return res;
 }
 
+static inline int kiocb_set_rw_flags(struct kiocb *ki, int flags)
+{
+        if (unlikely(flags & ~RWF_SUPPORTED))
+                return -EOPNOTSUPP;
+
+        if (flags & RWF_HIPRI)
+                ki->ki_flags |= IOCB_HIPRI;
+        if (flags & RWF_DSYNC)
+                ki->ki_flags |= IOCB_DSYNC;
+        if (flags & RWF_SYNC)
+                ki->ki_flags |= (IOCB_DSYNC | IOCB_SYNC);
+        return 0;
+}
+
 static inline ino_t parent_ino(struct dentry *dentry)
 {
         ino_t res;