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Ralf Baechle e03b526932 [MIPS] Fixup copy_from_user_inatomic ... From the 01408c4939 log message: The problem is that when we write to a file, the copy from userspace to pagecache is first done with preemption disabled, so if the source address is not immediately available the copy fails *and* *zeros* *the* *destination*. This is a problem because a concurrent read (which admittedly is an odd thing to do) might see zeros rather that was there before the write, or what was there after, or some mixture of the two (any of these being a reasonable thing to see). If the copy did fail, it will immediately be retried with preemption re-enabled so any transient problem with accessing the source won't cause an error. The first copying does not need to zero any uncopied bytes, and doing so causes the problem. It uses copy_from_user_atomic rather than copy_from_user so the simple expedient is to change copy_from_user_atomic to *not* zero out bytes on failure. < --- end cite --- > This patch finally implements at least a not so pretty solution by duplicating the relevant part of __copy_user. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>		2007-02-20 01:26:42 +00:00
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acpi	Pull bugzilla-7887 into release branch	2007-02-16 22:11:57 -05:00
asm-alpha
asm-arm	Merge git://git.kernel.org/pub/scm/linux/kernel/git/bunk/trivial	2007-02-19 13:29:02 -08:00
asm-arm26	Storage class should be before const qualifier	2007-02-17 20:11:19 +01:00
asm-avr32	Merge branch 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-arm	2007-02-19 13:18:39 -08:00
asm-cris
asm-frv
asm-generic	[PATCH] i386: paravirt CPU hypercall batching mode	2007-02-13 13:26:21 +01:00
asm-h8300
asm-i386	Pull misc-for-upstream into release branch	2007-02-16 18:52:41 -05:00
asm-ia64	Storage class should be before const qualifier	2007-02-17 20:11:19 +01:00
asm-m32r
asm-m68k
asm-m68knommu
asm-mips	[MIPS] Fixup copy_from_user_inatomic	2007-02-20 01:26:42 +00:00
asm-parisc
asm-powerpc	[POWERPC] QE: clean up ucc_slow.c and ucc_fast.c	2007-02-17 16:12:54 -06:00
asm-ppc	[POWERPC] ppc: Add support for AMCC Taishan 440GX eval board	2007-02-13 15:35:52 +11:00
asm-s390
asm-sh	sh: rts7751r2d board updates.	2007-02-15 18:20:52 +09:00
asm-sh64
asm-sparc
asm-sparc64
asm-um
asm-v850
asm-x86_64	[PATCH] time: x86_64: re-enable vsyscall support for x86_64	2007-02-16 08:14:00 -08:00
asm-xtensa
crypto
keys
linux	[PATCH] Declare init_irq_proc before we use it.	2007-02-19 14:21:50 -08:00
math-emu
media
mtd
net	[IPSEC]: changing API of xfrm6_tunnel_register	2007-02-13 12:55:55 -08:00
pcmcia	serial: Add PCMCIA IDs for Quatech DSP-100 dual RS232 adapter.	2007-02-16 15:19:16 -08:00
rdma	RDMA/cma: Add multicast communication support	2007-02-16 14:29:07 -08:00
rxrpc
scsi	Merge master.kernel.org:/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6	2007-02-19 13:32:28 -08:00
sound	[ALSA] version 1.0.14rc2	2007-02-14 08:42:20 +01:00
video
Kbuild