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| author |   Hugh Dickins <hugh@veritas.com> | 2005-11-21 21:32:22 -0800 |
|---|---|---|
| committer |   Linus Torvalds <torvalds@g5.osdl.org> | 2005-11-22 09:13:43 -0800 |
| commit | f3d48f0373c14a6203202f7b1dfc7b0d8aaf6ed2 (patch) | |
| tree | e09198efae7c68b9b4799b0f85d67951cc33bb54 /arch/sparc | |
| parent | [PATCH] unpaged: copy_page_range vma (diff) | |
| download | linux-dev-f3d48f0373c14a6203202f7b1dfc7b0d8aaf6ed2.tar.xz linux-dev-f3d48f0373c14a6203202f7b1dfc7b0d8aaf6ed2.zip | |
[PATCH] unpaged: fix sound Bad page states
Earlier I unifdefed PageCompound, so that snd_pcm_mmap_control_nopage and
others can give out a 0-order component of a higher-order page, which won't
be mistakenly freed when zap_pte_range unmaps it. But many Bad page states
reported a PG_reserved was freed after all: I had missed that we need to
say __GFP_COMP to get compound page behaviour.
Some of these higher-order pages are allocated by snd_malloc_pages, some by
snd_malloc_dev_pages; or if SBUS, by sbus_alloc_consistent - but that has
no gfp arg, so add __GFP_COMP into its sparc32/64 implementations.
I'm still rather puzzled that DRM seems not to need a similar change.
Signed-off-by: Hugh Dickins <hugh@veritas.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'arch/sparc')
| -rw-r--r-- | arch/sparc/kernel/ioport.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/sparc/kernel/ioport.c b/arch/sparc/kernel/ioport.c index d0f2bd227c4c..d39c9f206271 100644 --- a/arch/sparc/kernel/ioport.c +++ b/arch/sparc/kernel/ioport.c @@ -252,7 +252,7 @@ void *sbus_alloc_consistent(struct sbus_dev *sdev, long len, u32 *dma_addrp) } order = get_order(len_total); - if ((va = __get_free_pages(GFP_KERNEL, order)) == 0) + if ((va = __get_free_pages(GFP_KERNEL|__GFP_COMP, order)) == 0) goto err_nopages; if ((res = kmalloc(sizeof(struct resource), GFP_KERNEL)) == NULL) |