linux/lib, branch v2.6.34

lib/btree: fix possible NULL pointer dereference

2010-05-15T19:48:10Z

mempool_alloc() can return null in atomic case. Signed-off-by: Denis Kirjanov Cc: Joern Engel Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

rwsem: Test for no active locks in __rwsem_do_wake undo code

2010-05-13T01:23:34Z

If there are no active threasd using a semaphore, it is always correct to unqueue blocked threads. This seems to be what was intended in the undo code. What was done instead, was to look for a sem count of zero - this is an impossible situation, given that at least one thread is known to be queued on the semaphore. The code might be correct as written, but it's hard to reason about and it's not what was intended (otherwise the goto out would have been unconditional). Go for checking the active count - the alternative is not worth the headache. Signed-off-by: Michel Lespinasse Signed-off-by: David Howells Signed-off-by: Linus Torvalds

lib/vsprintf.c: add missing EXPORT_SYMBOL(simple_strtoll)

2010-04-24T18:31:26Z

Add a missing EXPORT_SYMBOL. I must be the first person that wants to use this function :-) Signed-off-by: Hans Verkuil Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

lib: fix the use of LZO to decompress initramfs images

2010-04-24T18:31:25Z

This patch fixes 2 issues with the LZO decompressor: - It doesn't handle the case where a block isn't compressed at all. In this case, calling lzo1x_decompress_safe will fail, so we need to just use memcpy() instead (the upstream LZO code does something similar) - Since commit 54291362d2a5738e1b0495df2abcb9e6b0563a3f ("initramfs: add missing decompressor error check") , the decompressor return code is checked in the init/initramfs.c The LZO decompressor didn't return the expected value, causing the initramfs code to falsely believe a decompression error occured Signed-off-by: Albin Tonnerre Tested-by: bert schulze Cc: "H. Peter Anvin" Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

flex_array: fix the panic when calling flex_array_alloc() without __GFP_ZERO

2010-04-24T18:31:24Z

memset() is called with the wrong address and the kernel panics. Signed-off-by: Changli Gao Cc: Patrick McHardy Acked-by: David Rientjes Cc: Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

Merge branch 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip

2010-04-15T19:20:56Z

* 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: x86/gart: Disable GART explicitly before initialization dma-debug: Cleanup for copy-loop in filter_write() x86/amd-iommu: Remove obsolete parameter documentation x86/amd-iommu: use for_each_pci_dev Revert "x86: disable IOMMUs on kernel crash" x86/amd-iommu: warn when issuing command to uninitialized cmd buffer x86/amd-iommu: enable iommu before attaching devices x86/amd-iommu: Use helper function to destroy domain x86/amd-iommu: Report errors in acpi parsing functions upstream x86/amd-iommu: Pt mode fix for domain_destroy x86/amd-iommu: Protect IOMMU-API map/unmap path x86/amd-iommu: Remove double NULL check in check_device

vsprintf: Change struct printf_spec.precision from s8 to s16

2010-04-14T17:32:35Z

Commit ef0658f3de484bf9b173639cd47544584e01efa5 changed precision from int to s8. There is existing kernel code that uses a larger precision. An example from the audit code: vsnprintf(...,..., " msg='%.1024s'", (char *)data); which overflows precision and truncates to nothing. Extending precision size fixes the audit system issue. Other changes: Change the size of the struct printf_spec.type from u16 to u8 so sizeof(struct printf_spec) stays as small as possible. Reorder the struct members so sizeof(struct printf_spec) remains 64 bits without alignment holes. Document the struct members a bit more. Original-patch-by: Eric Paris Signed-off-by: Joe Perches Tested-by: Justin P. Mattock Signed-off-by: Linus Torvalds

Merge branch 'iommu/fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/linux-2.6-iommu into x86/urgent

2010-04-13T11:24:54Z

Merge branch 'master' of /home/davem/src/GIT/linux-2.6/

2010-04-13T07:28:45Z

Conflicts: lib/Kconfig.debug

sparc64: Support kmemleak.

2010-04-13T06:46:17Z

Only missing thing was an _sdata marker in vmlinux.lds.S Signed-off-by: David S. Miller