Krzysztof Helt 537a1bf059 fbdev: add mutex for fb_mmap locking ... Add a mutex to avoid a circular locking problem between the mm layer semaphore and fbdev ioctl mutex through the fb_mmap() call. Also, add mutex to all places where smem_start and smem_len fields change so the mutex inside the fb_mmap() is actually used. Changing of these fields before calling the framebuffer_register() are not mutexed. This is 2.6.31 material. It removes one lockdep (fb_mmap() and register_framebuffer()) but there is still another one (fb_release() and register_framebuffer()). It also cleans up handling of the smem_start and smem_len fields used by mutexed section of the fb_mmap(). Signed-off-by: Krzysztof Helt <krzysztof.h1@wp.pl> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: "Rafael J. Wysocki" <rjw@sisk.pl> Cc: <stable@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>		2009-06-30 18:56:00 -07:00
..
i810_accel.c	i810: fix sparse warnings	2009-01-06 15:59:27 -08:00
i810_dvt.c
i810_gtf.c
i810_main.c	fbdev: add mutex for fb_mmap locking	2009-06-30 18:56:00 -07:00
i810_main.h
i810_regs.h
i810-i2c.c	i2c: Delete many unused adapter IDs	2009-01-26 21:19:52 +01:00
i810.h	i810fb: the pseudo_palette is only 16 elements long	2007-07-17 10:23:12 -07:00
Makefile