linux_dsm_epyc7002/sound
Hugh Dickins 1cdca61bf8 [PATCH] unpaged: sound nopage get_page
Something noticed when studying use of VM_RESERVED in different drivers:
snd_usX2Y_hwdep_pcm_vm_nopage omitted to get_page: fixed.

And how did this work before?  Aargh!  That nopage is returning a page from
within a buffer allocated by snd_malloc_pages, which allocates a high-order
page, then does SetPageReserved on each 0-order page within.

That would have worked in 2.6.14, because when the area was unmapped,
PageReserved inhibited put_page.  2.6.15-rc1 removed that inhibition (while
leaving ineffective PageReserveds around for now), but it hasn't caused
trouble because..  we've not been freeing from VM_RESERVED at all.

Signed-off-by: Hugh Dickins <hugh@veritas.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-11-22 09:13:42 -08:00
..
arm [DRIVER MODEL] Convert platform drivers to use struct platform_driver 2005-11-09 22:32:44 +00:00
core [DRIVER MODEL] Convert platform drivers to use struct platform_driver 2005-11-09 22:32:44 +00:00
drivers [PATCH] vx_hwdep.c needs vmalloc.h 2005-11-09 07:55:50 -08:00
i2c [ALSA] Fix schedule_timeout usage 2005-11-04 13:19:49 +01:00
isa [ALSA] Fix schedule_timeout usage 2005-11-04 13:19:49 +01:00
mips [ALSA] AMD Au1x00 driver: buggy spinlocks 2005-11-04 13:20:26 +01:00
oss [PATCH] move pm_register/etc. to CONFIG_PM_LEGACY, pm_legacy.h 2005-11-13 18:14:10 -08:00
parisc [PARISC] Update harmony from parisc tree 2005-10-21 22:42:38 -04:00
pci [PATCH] pci_ids cleanup: fix two additional IDs in bt87x 2005-11-10 16:09:17 -08:00
pcmcia [ALSA] Remove vmalloc wrapper, kfree_nocheck() 2005-11-04 13:18:00 +01:00
ppc [PATCH] PowerBook 6,1: headphone not detected after suspend 2005-11-16 13:51:50 +11:00
sparc [SPARC]: More abstractions and cleanups of dma handling in cs4231. 2005-11-07 14:09:19 -08:00
synth [ALSA] Fix emu10k1 synth problems. 2005-11-04 13:20:13 +01:00
usb [PATCH] unpaged: sound nopage get_page 2005-11-22 09:13:42 -08:00
Kconfig [ALSA] sound: align device drivers menus 2005-11-04 13:17:08 +01:00
last.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
Makefile Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
sound_core.c [PATCH] Driver Core: fix up all callers of class_device_create() 2005-10-28 09:52:52 -07:00
sound_firmware.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00