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| author | Jan Beulich <JBeulich@suse.com> | 2015-09-02 09:45:58 -0600 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2015-09-14 12:10:50 +0200 |
| commit | f454b478861325f067fd58ba7ee9f1b5c4a9d6a0 (patch) | |
| tree | d25a7c9db6df463d5726d85debe2f78a34c9c4ba /Documentation/SAK.txt | |
| parent | 1e6428124fe22906be0de1622c8fed8e50e5de05 (diff) | |
| download | linux-stable-f454b478861325f067fd58ba7ee9f1b5c4a9d6a0.tar.gz linux-stable-f454b478861325f067fd58ba7ee9f1b5c4a9d6a0.tar.bz2 linux-stable-f454b478861325f067fd58ba7ee9f1b5c4a9d6a0.zip | |
x86/ldt: Fix small LDT allocation for Xen
While the following commit:
37868fe113 ("x86/ldt: Make modify_ldt synchronous")
added a nice comment explaining that Xen needs page-aligned
whole page chunks for guest descriptor tables, it then
nevertheless used kzalloc() on the small size path.
As I'm unaware of guarantees for kmalloc(PAGE_SIZE, ) to return
page-aligned memory blocks, I believe this needs to be switched
back to __get_free_page() (or better get_zeroed_page()).
Signed-off-by: Jan Beulich <jbeulich@suse.com>
Cc: Andy Lutomirski <luto@amacapital.net>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Brian Gerst <brgerst@gmail.com>
Cc: David Vrabel <david.vrabel@citrix.com>
Cc: Denys Vlasenko <dvlasenk@redhat.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: http://lkml.kernel.org/r/55E735D6020000780009F1E6@prv-mh.provo.novell.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'Documentation/SAK.txt')
0 files changed, 0 insertions, 0 deletions