mirror of
https://github.com/torvalds/linux
synced 2024-11-05 18:23:50 +00:00
1cdca61bf8
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> |
||
|---|---|---|
| .. | ||
| Makefile | ||
| usbus428ctldefs.h | ||
| usbusx2y.c | ||
| usbusx2y.h | ||
| usbusx2yaudio.c | ||
| usx2y.h | ||
| usX2Yhwdep.c | ||
| usX2Yhwdep.h | ||
| usx2yhwdeppcm.c | ||
| usx2yhwdeppcm.h | ||