Remove IOCQE_FLAG_CACHEHIT
This cache hint has been removed from the io_uring series, as there's
some hesitation to leak this information to userspace. Remove it from
the header file and the man page. We can always re-introduce it later,
if we get some variant of this included.
Signed-off-by: Jens Axboe <axboe@kernel.dk>
diff --git a/man/io_uring_enter.2 b/man/io_uring_enter.2
index 0e6ca61..c8c4eef 100644
--- a/man/io_uring_enter.2
+++ b/man/io_uring_enter.2
@@ -290,11 +290,7 @@
entry. The primary use case is to store data that the application
will need to access upon completion of this particular I/O. The
.I flags
-bit mask may contain 0 or more of the following values, ORed together:
-.TP
-.BR IOCQE_FLAG_CACHEHIT
-The page(s) associated with the buffered I/O operation were present in
-the page cache.
+is reserved for future use.
.I res
is the operation-specific result.
.PP
diff --git a/src/io_uring.h b/src/io_uring.h
index 24906e9..e234086 100644
--- a/src/io_uring.h
+++ b/src/io_uring.h
@@ -70,11 +70,6 @@
};
/*
- * io_uring_event->flags
- */
-#define IOCQE_FLAG_CACHEHIT (1U << 0) /* IO did not hit media */
-
-/*
* Magic offsets for the application to mmap the data it needs
*/
#define IORING_OFF_SQ_RING 0ULL