• Davide Libenzi's avatar
    [PATCH] Add epoll compat_ code to fs/compat.c · f6dfb4fd
    Davide Libenzi authored
    
    
    IA64 and ARM-OABI are currently using their own version of epoll compat_
    code.
    
    An architecture needs epoll_event translation if alignof(u64) in 32 bit
    mode is different from alignof(u64) in 64 bit mode.  If an architecture
    needs epoll_event translation, it must define struct compat_epoll_event in
    asm/compat.h and set CONFIG_HAVE_COMPAT_EPOLL_EVENT and use
    compat_sys_epoll_ctl and compat_sys_epoll_wait.
    
    All 64 bit architecture should use compat_sys_epoll_pwait.
    
    [sfr: restructure and move to fs/compat.c, remove MIPS version
    of compat_sys_epoll_pwait, use __put_user_unaligned]
    Signed-off-by: default avatarStephen Rothwell <sfr@canb.auug.org.au>
    Cc: David Woodhouse <dwmw2@infradead.org>
    Cc: Russell King <rmk@arm.linux.org.uk>
    Cc: "Luck, Tony" <tony.luck@intel.com>
    Cc: "David S. Miller" <davem@davemloft.net>
    Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
    Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
    f6dfb4fd
compat.h 7.15 KB