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authorAlexey Zaytsev <alexey.zaytsev@gmail.com>2010-11-22 03:33:03 +0300
committerEric Paris <eparis@redhat.com>2010-12-15 21:56:33 +0300
commit62731fa0c893515dc6cbc3e0a2879a92793c735f (patch)
tree91de7e43e38a105dfe2e5cc085cac38de149ebea /include/linux/fanotify.h
parentfdbf3ceeb659f0b3c0e8dd79b331b7ac05910f1e (diff)
downloadlinux-62731fa0c893515dc6cbc3e0a2879a92793c735f.tar.xz
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>
Diffstat (limited to 'include/linux/fanotify.h')
-rw-r--r--include/linux/fanotify.h6
1 files changed, 4 insertions, 2 deletions
diff --git a/include/linux/fanotify.h b/include/linux/fanotify.h
index c73224315aee..6c6133f76e16 100644
--- a/include/linux/fanotify.h
+++ b/include/linux/fanotify.h
@@ -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;