Commit 28682019 authored Oct 28, 2010 by Eric Paris

fanotify: use __aligned_u64 in fanotify userspace metadata



Currently the userspace struct exposed by fanotify uses
__attribute__((packed)) to make sure that alignment works on multiarch
platforms.  Since this causes a severe performance penalty on some
platforms we are going to switch to using explicit alignment notation on
the 64bit values so we don't have to use 'packed'

Signed-off-by: Eric Paris <eparis@redhat.com>

parent 4231a235

include/linux/fanotify.h

+2 −2

Original line number	Diff line number	Diff line
		@@ -79,10 +79,10 @@
		struct fanotify_event_metadata {
		__u32 event_len;
		__u32 vers;
		__u64 mask;
		__aligned_u64 mask;
		__s32 fd;
		__s32 pid;
		} __attribute__ ((packed));
		};

		struct fanotify_response {
		__s32 fd;