linux/lib, branch v2.6.39

vsprintf: Turn kptr_restrict off by default

2011-05-12T22:18:16Z

kptr_restrict has been triggering bugs in apps such as perf, and it also makes the system less useful by default, so turn it off by default. This is how we generally handle security features that remove functionality, such as firewall code or SELinux - they have to be configured and activated from user-space. Distributions can turn kptr_restrict on again via this line in /etc/sysctrl.conf: kernel.kptr_restrict = 1 ( Also mark the variable __read_mostly while at it, as it's typically modified only once per bootup, or not at all. ) Signed-off-by: Ingo Molnar Acked-by: David S. Miller Signed-off-by: Linus Torvalds

Merge branch 'for-linus' of git://git.infradead.org/users/eparis/selinux into for-linus

2011-05-04T01:59:34Z

XZ decompressor: Fix decoding of empty LZMA2 streams

2011-05-02T15:46:12Z

The old code considered valid empty LZMA2 streams to be corrupt. Note that a typical empty .xz file has no LZMA2 data at all, and thus most .xz files having no uncompressed data are handled correctly even without this fix. Signed-off-by: Lasse Collin Signed-off-by: Linus Torvalds

flex_arrays: allow zero length flex arrays

2011-04-28T20:12:54Z

Just like kmalloc will allow one to allocate a 0 length segment of memory flex arrays should do the same thing. It should bomb if you try to use something, but it should at least allow the allocation. This is needed because when SELinux switched to using flex_arrays in 2.6.38 the inability to allocate a 0 length array resulted in SELinux policy load returning -ENOSPC when previously it worked. Based-on-patch-by: Steffen Klassert Signed-off-by: Eric Paris Tested-by: Chris Richards Cc: stable@kernel.org [2.6.38+]

flex_array: flex_array_prealloc takes a number of elements, not an end

2011-04-28T20:12:47Z

Change flex_array_prealloc to take the number of elements for which space should be allocated instead of the last (inclusive) element. Users and documentation are updated accordingly. flex_arrays got introduced before they had users. When folks started using it, they ended up needing a different API than was coded up originally. This swaps over to the API that folks apparently need. Based-on-patch-by: Steffen Klassert Signed-off-by: Eric Paris Tested-by: Chris Richards Acked-by: Dave Hansen Cc: stable@kernel.org [2.6.38+]

kstrtox: simpler code in _kstrtoull()

2011-04-14T23:06:55Z

Signed-off-by: Alexey Dobriyan Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

kstrtox: fix compile warnings in test

2011-04-14T23:06:54Z

Fix the following warnings: CC [M] lib/test-kstrtox.o lib/test-kstrtox.c: In function 'test_kstrtou64_ok': lib/test-kstrtox.c:318: warning: this decimal constant is unsigned only in ISO C90 ... Signed-off-by: Alexey Dobriyan Reported-by: Geert Uytterhoeven Acked-by: Geert Uytterhoeven Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

Merge branch 'for-linus2' of git://git.profusion.mobi/users/lucas/linux-2.6

2011-04-07T18:14:49Z

* 'for-linus2' of git://git.profusion.mobi/users/lucas/linux-2.6: Fix common misspellings

kemleak-test: build as module only

2011-04-05T00:51:47Z

mm/kmemleak-test.c is used to provide an example of how kmemleak tool works. Memory is leaked at module unload-time, so building the test in kernel (Y) makes the leaks impossible and the test useless. Qualify DEBUG_KMEMLEAK_TEST config symbol with "depends on m", to restrict module-only building. Signed-off-by: Daniel Baluta Acked-by: Pekka Enberg Acked-by: Catalin Marinas Signed-off-by: Randy Dunlap Signed-off-by: Linus Torvalds

Fix common misspellings

2011-03-31T14:26:23Z

Fixes generated by 'codespell' and manually reviewed. Signed-off-by: Lucas De Marchi