Commit 62731fa0 authored Nov 22, 2010 by Alexey Zaytsev Committed by Eric Paris Dec 15, 2010

fanotify: split version into version and metadata_len



To implement per event type optional headers we are interested in
knowing how long the metadata structure is.  This patch slits the __u32
version field into a __u8 version and a __u16 metadata_len field (with
__u8 left over).  This should allow for backwards compat ABI.

Signed-off-by: Alexey Zaytsev <alexey.zaytsev@gmail.com>
[rewrote descrtion and changed object sizes and ordering - eparis]
Signed-off-by: Eric Paris <eparis@redhat.com>

parent fdbf3cee

include/linux/fanotify.h

+4 −2

Original line number	Diff line number	Diff line
		@@ -83,11 +83,13 @@
		FAN_ALL_PERM_EVENTS \|\
		FAN_Q_OVERFLOW)

		#define FANOTIFY_METADATA_VERSION 2
		#define FANOTIFY_METADATA_VERSION 3

		struct fanotify_event_metadata {
		__u32 event_len;
		__u32 vers;
		__u8 vers;
		__u8 reserved;
		__u16 metadata_len;
		__aligned_u64 mask;
		__s32 fd;
		__s32 pid;

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