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fanotify: use __aligned_u64 in fanotify userspace metadata

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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>
This commit is contained in:
Eric Paris 2010-10-28 17:21:56 -04:00
parent 4231a23530
commit 2868201965
1 changed files with 2 additions and 2 deletions
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4
include/linux/fanotify.h
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@ -79,10 +79,10 @@
struct fanotify_event_metadata { struct fanotify_event_metadata {
__u32 event_len; __u32 event_len;
__u32 vers; __u32 vers;
__u64 mask; __aligned_u64 mask;
__s32 fd; __s32 fd;
__s32 pid; __s32 pid;
} __attribute__ ((packed)); };
struct fanotify_response { struct fanotify_response {
__s32 fd; __s32 fd;