[09/15] fs: add FMODE_BUF_RASYNC
diff mbox series

Message ID 20200618144355.17324-10-axboe@kernel.dk
State New
Headers show
  • [01/15] block: provide plug based way of signaling forced no-wait semantics
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Commit Message

Jens Axboe June 18, 2020, 2:43 p.m. UTC
If set, this indicates that the file system supports IOCB_WAITQ for
buffered reads.

Signed-off-by: Jens Axboe <axboe@kernel.dk>
 include/linux/fs.h | 3 +++
 1 file changed, 3 insertions(+)

diff mbox series

diff --git a/include/linux/fs.h b/include/linux/fs.h
index 6ac919b40596..3f9de90e0266 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -175,6 +175,9 @@  typedef int (dio_iodone_t)(struct kiocb *iocb, loff_t offset,
 /* File does not contribute to nr_files count */
 #define FMODE_NOACCOUNT		((__force fmode_t)0x20000000)
+/* File supports async buffered reads */
+#define FMODE_BUF_RASYNC	((__force fmode_t)0x40000000)
  * Flag for rw_copy_check_uvector and compat_rw_copy_check_uvector
  * that indicates that they should check the contents of the iovec are