linux-toradex.git/arch/alpha, branch v2.6.25.17

alpha: unbreak OSF/1 (a.out) binaries

2008-05-01T21:44:39+00:00

commit 2444e56b0c08e6f3e3877583841a1213e3263d98 upstream


OSF/1 brk(2) was broken by following one-liner in sys_brk()
(commit 4cc6028d4040f95cdb590a87db478b42b8be0508):

-	if (brk < mm->end_code)
+	if (brk < mm->start_brk)
		goto out;

The problem is that osf_set_program_attributes()
does update mm->end_code, but not mm->start_brk,
which still contains inappropriate value left from
binary loader, so brk() always fails.

Signed-off-by: Ivan Kokshaysky 
Signed-off-by: Linus Torvalds 
Signed-off-by: Greg Kroah-Hartman

alpha: fix ALSA DMA mmap crash

2008-04-02T22:28:19+00:00

Make dma_alloc_coherent respect gfp flags (__GFP_COMP is one that
matters).

Signed-off-by: Ivan Kokshaysky 
Tested-by: Michael Cree 
Cc: Richard Henderson 
Cc: Jaroslav Kysela 
Cc: Takashi Iwai 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

alpha: use iommu_is_span_boundary helper function

2008-03-13T20:11:43+00:00

iommu_is_span_boundary in lib/iommu-helper.c was exported for PARISC IOMMUs
(commit 3715863aa142c4f4c5208f5f3e5e9bac06006d2f).  Alpha's IOMMU can use it.

This removes the check on the boundary size alignment because
iommu_is_span_boundary does.

Signed-off-by: FUJITA Tomonori 
Cc: Richard Henderson 
Acked-by: Ivan Kokshaysky 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

alpha: fix iommu-related boot panic

2008-03-09T17:05:15+00:00

This fixes a boot panic due to a typo in the recent iommu patchset from
FUJITA Tomonori  - the code used dma_get_max_seg_size()
instead of dma_get_seg_boundary().

It also removes a couple of unnecessary BUG_ON() and ALIGN() macros.

Signed-off-by: Ivan Kokshaysky 
Reported-and-tested-by: Bob Tracy 
Acked-by: FUJITA Tomonori 
Signed-off-by: Linus Torvalds

alpha: remove unused DEBUG_FORCEDAC define in IOMMU

2008-03-05T00:35:14+00:00

This just removes unused DEBUG_FORCEDAC define in the IOMMU code.

Signed-off-by: FUJITA Tomonori 
Cc: Richard Henderson 
Cc: Ivan Kokshaysky 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

alpha: make IOMMU respect the segment boundary limits

2008-03-05T00:35:14+00:00

This patch makes the IOMMU code not allocate a memory area spanning LLD's
segment boundary.

is_span_boundary() judges whether a memory area spans LLD's segment boundary.
If iommu_arena_find_pages() finds such a area, it tries to find the next
available memory area.

Signed-off-by: FUJITA Tomonori 
Cc: Richard Henderson 
Cc: Ivan Kokshaysky 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

alpha: IOMMU had better access to the free space bitmap at only one place

2008-03-05T00:35:14+00:00

iommu_arena_find_pages duplicates the code to access to the bitmap for free
space management.  This patch convert the IOMMU code to have only one place to
access the bitmap, in the popular way that other IOMMUs (e.g.  POWER and
SPARC) do.

This patch is preparation for modifications to fix the IOMMU segment boundary
problem.

Signed-off-by: FUJITA Tomonori 
Cc: Richard Henderson 
Cc: Ivan Kokshaysky 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

alpha: convert IOMMU to use ALIGN()

2008-03-05T00:35:13+00:00

This patch is preparation for modifications to fix the IOMMU segment boundary
problem.

Signed-off-by: FUJITA Tomonori 
Cc: Richard Henderson 
Cc: Ivan Kokshaysky 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

Introduce path_put()

2008-02-15T05:13:33+00:00

* Add path_put() functions for releasing a reference to the dentry and
  vfsmount of a struct path in the right order

* Switch from path_release(nd) to path_put(&nd->path)

* Rename dput_path() to path_put_conditional()

[akpm@linux-foundation.org: fix cifs]
Signed-off-by: Jan Blunck 
Signed-off-by: Andreas Gruenbacher 
Acked-by: Christoph Hellwig 
Cc: 
Cc: Al Viro 
Cc: Steven French 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

Embed a struct path into struct nameidata instead of nd->{dentry,mnt}

2008-02-15T05:13:33+00:00

This is the central patch of a cleanup series. In most cases there is no good
reason why someone would want to use a dentry for itself. This series reflects
that fact and embeds a struct path into nameidata.

Together with the other patches of this series
- it enforced the correct order of getting/releasing the reference count on
   pairs
- it prepares the VFS for stacking support since it is essential to have a
  struct path in every place where the stack can be traversed
- it reduces the overall code size:

without patch series:
   text    data     bss     dec     hex filename
5321639  858418  715768 6895825  6938d1 vmlinux

with patch series:
   text    data     bss     dec     hex filename
5320026  858418  715768 6894212  693284 vmlinux

This patch:

Switch from nd->{dentry,mnt} to nd->path.{dentry,mnt} everywhere.

[akpm@linux-foundation.org: coding-style fixes]
[akpm@linux-foundation.org: fix cifs]
[akpm@linux-foundation.org: fix smack]
Signed-off-by: Jan Blunck 
Signed-off-by: Andreas Gruenbacher 
Acked-by: Christoph Hellwig 
Cc: Al Viro 
Cc: Casey Schaufler 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds