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| author | Alexey Zaytsev <alexey.zaytsev@gmail.com> | 2010-11-22 00:33:03 +0000 |
|---|---|---|
| committer | Eric Paris <eparis@redhat.com> | 2010-12-15 13:56:33 -0500 |
| commit | 62731fa0c893515dc6cbc3e0a2879a92793c735f (patch) | |
| tree | 91de7e43e38a105dfe2e5cc085cac38de149ebea /include | |
| parent | fdbf3ceeb659f0b3c0e8dd79b331b7ac05910f1e (diff) | |
| download | lwn-62731fa0c893515dc6cbc3e0a2879a92793c735f.tar.gz lwn-62731fa0c893515dc6cbc3e0a2879a92793c735f.zip | |
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')
| -rw-r--r-- | include/linux/fanotify.h | 6 |
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; |