BMC/Intel-BMC/linux.git/arch/avr32/include/asm/uaccess.h, branch devIntel OpenBMC Linux kernel source tree (mirror)https://git.radix-linux.su/BMC/Intel-BMC/linux.git/atom?h=dev2015-05-19T06:39:14+00:00mm/uaccess, mm/fault: Clarify that uaccess may only sleep if pagefaults are enabled2015-05-19T06:39:14+00:00David Hildenbranddahi@linux.vnet.ibm.com2015-05-11T15:52:08+00:00urn:sha1:b3c395ef5556a6c60f4426cc060f5b7bdcf82d5b
In general, non-atomic variants of user access functions must not sleep
if pagefaults are disabled.
Let's update all relevant comments in uaccess code. This also reflects
the might_sleep() checks in might_fault().
Reviewed-and-tested-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: David Hildenbrand <dahi@linux.vnet.ibm.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: David.Laight@ACULAB.COM
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: airlied@linux.ie
Cc: akpm@linux-foundation.org
Cc: benh@kernel.crashing.org
Cc: bigeasy@linutronix.de
Cc: borntraeger@de.ibm.com
Cc: daniel.vetter@intel.com
Cc: heiko.carstens@de.ibm.com
Cc: herbert@gondor.apana.org.au
Cc: hocko@suse.cz
Cc: hughd@google.com
Cc: mst@redhat.com
Cc: paulus@samba.org
Cc: ralf@linux-mips.org
Cc: schwidefsky@de.ibm.com
Cc: yang.shi@windriver.com
Link: http://lkml.kernel.org/r/1431359540-32227-4-git-send-email-dahi@linux.vnet.ibm.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
avr32: macro whitespace fixes2015-01-13T13:23:55+00:00Michael S. Tsirkinmst@redhat.com2015-01-06T13:11:13+00:00urn:sha1:d13beabea13b528d9d9d9c95a80db6bd7b99402c
While working on arch/avr32/include/asm/uaccess.h, I noticed
that some macros within this header are made harder to read because they
violate a coding style rule: space is missing after comma.
Fix it up.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Acked-by: Hans-Christian Egtvedt <egtvedt@samfundet.no>
avr32: whitespace fix2015-01-13T13:23:40+00:00Michael S. Tsirkinmst@redhat.com2015-01-06T12:53:58+00:00urn:sha1:99408c840a87e4d1f8f9e1adc95171b9da10459e
Align using tabs to make code prettier.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Acked-by: Hans-Christian Egtvedt <egtvedt@samfundet.no>
avr32/uaccess: fix sparse errors2015-01-13T13:23:04+00:00Michael S. Tsirkinmst@redhat.com2014-12-11T23:56:04+00:00urn:sha1:7f0db2bec363bf1a4d6da2572491c634a34dcad8
virtio wants to read bitwise types from userspace using get_user. At the
moment this triggers sparse errors, since the value is passed through an
integer.
Fix that up using __force.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Acked-by: Hans-Christian Egtvedt <egtvedt@samfundet.no>
avr32: fix out-of-range rjmp instruction on large kernels2009-01-16T08:38:05+00:00Haavard Skinnemoenhaavard.skinnemoen@atmel.com2009-01-14T12:32:53+00:00urn:sha1:61f3632fdcdcf547f6487f56b45976d7964756c4
Use .subsection to place fixups closer to their jump targets. This
increases the maximum size of the kernel before we get link errors
significantly.
The problem here is that we don't have a "call"-ish pseudo-instruction
to use instead of rjmp...we could add one, but that means we'll have to
wait for a new toolchain release, wait until we're fairly sure most
people are using it, etc...
As an added bonus, it should decrease the RAM footprint slightly,
though it might pollute the icache a bit more.
Signed-off-by: Haavard Skinnemoen <haavard.skinnemoen@atmel.com>
avr32: Move include/asm-avr32 to arch/avr32/include/asm2008-08-05T11:35:07+00:00Haavard Skinnemoenhaavard.skinnemoen@atmel.com2008-08-05T11:35:07+00:00urn:sha1:84db8d7cdb072866f5a6c6ac2c9a74c5c48dd22f
Leaving include/asm/arch alone for now.
Signed-off-by: Haavard Skinnemoen <haavard.skinnemoen@atmel.com>