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| author | Johannes Berg <johannes@sipsolutions.net> | 2009-04-18 11:00:39 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2009-04-23 14:15:28 -0700 |
| commit | a8aa401f38cfb5fa26e970b48e93fb851d68fe64 (patch) | |
| tree | 99f5572d635b55af91f04bff94ce901a022ed09e /Documentation/pi-futex.txt | |
| parent | 82a10a81c853be3859b3d222db0f372ee8d2eaa2 (diff) | |
| download | kernel_samsung_tuna-a8aa401f38cfb5fa26e970b48e93fb851d68fe64.zip kernel_samsung_tuna-a8aa401f38cfb5fa26e970b48e93fb851d68fe64.tar.gz kernel_samsung_tuna-a8aa401f38cfb5fa26e970b48e93fb851d68fe64.tar.bz2 | |
USB: pass mem_flags to dma_alloc_coherent
When I want to use my webcam, I get:
vvvvvvv
cheese: page allocation failure. order:5, mode:0x8004
Pid: 8100, comm: cheese Not tainted 2.6.30-rc2-wl-dirty #102
Call Trace:
[<ffffffff802c5d8e>] __alloc_pages_internal+0x3fe/0x520
[<ffffffff80210a20>] dma_generic_alloc_coherent+0x90/0x120
[<ffffffffa001c91e>] hcd_buffer_alloc+0xee/0x130 [usbcore]
[<ffffffffa000d52d>] usb_buffer_alloc+0x2d/0x40 [usbcore]
[<ffffffffa0160e14>] uvc_alloc_urb_buffers+0x84/0x140 [uvcvideo]
[<ffffffffa0160ff6>] uvc_init_video+0x126/0x400 [uvcvideo]
[...]
Oddly, I remembered fixing this and putting in __GFP_NOWARN
because uvcvideo retries a smaller allocation. However, the
allocation function doesn't pass the gfp flags through to
dma_alloc_coherent so we still get the warning!
Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'Documentation/pi-futex.txt')
0 files changed, 0 insertions, 0 deletions