We will introduce new operation type later, if we still use integer
variant as bool variant to record the operation type, we would add new
variant and increase the size of raid bio structure. It is not good,
by this patch, we define different number for different operation,
and we can just use a variant to record the operation type.
Signed-off-by: Miao Xie <miaox@cn.fujitsu.com>
This patch implement the RAID5/6 common data repair function, the
implementation is similar to the scrub on the other RAID such as
RAID1, the differentia is that we don't read the data from the
mirror, we use the data repair function of RAID5/6.
Signed-off-by: Miao Xie <miaox@cn.fujitsu.com>
Because we will reuse bbio and raid_map during the scrub later, it is
better that we don't change any variant of bbio and don't free it at
the end of IO request. So we introduced similar variants into the raid
bio, and don't access those bbio's variants any more.
Signed-off-by: Miao Xie <miaox@cn.fujitsu.com>
stripe_index's value was set again in latter line:
stripe_index = 0;
Signed-off-by: Zhao Lei <zhaolei@cn.fujitsu.com>
Signed-off-by: Miao Xie <miaox@cn.fujitsu.com>
Reviewed-by: David Sterba <dsterba@suse.cz>
bbio_ret in this condition is always !NULL because previous code
already have a check-and-skip:
4908 if (!bbio_ret)
4909 goto out;
Signed-off-by: Zhao Lei <zhaolei@cn.fujitsu.com>
Signed-off-by: Miao Xie <miaox@cn.fujitsu.com>
Reviewed-by: David Sterba <dsterba@suse.cz>
Oracle Sun X86 servers have dynamic power capping capability that works via
ACPI _PPC method etc, so skip loading this driver if Sun server has ACPI _PPC
enabled.
Signed-off-by: Ethan Zhao <ethan.zhao@oracle.com>
Tested-by: Linda Knippers <linda.knippers@hp.com>
Acked-by: Kristen Carlson Accardi <kristen@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
In some android devices, there will be a "divide by zero" exception.
vmpr->scanned could be zero before spin_lock(&vmpr->sr_lock).
Addresses https://bugzilla.kernel.org/show_bug.cgi?id=88051
[akpm@linux-foundation.org: neaten]
Reported-by: ji_ang <ji_ang@163.com>
Cc: Anton Vorontsov <anton.vorontsov@linaro.org>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
If a frontswap dup-store failed, it should invalidate the expired page
in the backend, or it could trigger some data corruption issue.
Such as:
1. use zswap as the frontswap backend with writeback feature
2. store a swap page(version_1) to entry A, success
3. dup-store a newer page(version_2) to the same entry A, fail
4. use __swap_writepage() write version_2 page to swapfile, success
5. zswap do shrink, writeback version_1 page to swapfile
6. version_2 page is overwrited by version_1, data corrupt.
This patch fixes this issue by invalidating expired data immediately
when meet a dup-store failure.
Signed-off-by: Weijie Yang <weijie.yang@samsung.com>
Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Cc: Seth Jennings <sjennings@variantweb.net>
Cc: Dan Streetman <ddstreet@ieee.org>
Cc: Minchan Kim <minchan@kernel.org>
Cc: Bob Liu <bob.liu@oracle.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Minor fixlet to perform the reserved pages counter aggregation for each
node, at show_mem()
Signed-off-by: Rafael Aquini <aquini@redhat.com>
Acked-by: Rik van Riel <riel@redhat.com>
Acked-by: Johannes Weiner <jweiner@redhat.com>
Acked-by: Yasuaki Ishimatsu <isimatu.yasuaki@jp.fujitsu.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
A few more small fixes for 3.18.
* 'drm-fixes-3.18' of git://people.freedesktop.org/~agd5f/linux:
drm/radeon: kernel panic in drm_calc_vbltimestamp_from_scanoutpos with 3.18.0-rc6
drm/radeon: Ignore RADEON_GEM_GTT_WC on 32-bit x86
drm/radeon: sync all BOs involved in a CS v2
A patch to the slicoss.c file to fix some of the long line issues found by the
checkpath.pl tool
Signed-off-by: Sean Cleator <seancleator@hotmail.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Fixes checkpatch warning:
WARNING: else is not generally useful after a break or return
Signed-off-by: Mike Krinkin <krinkin.m.u@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
There are a handful of calls to printk in ni_stc.h without specified log
levels, as well as one in ni_mio_common.c. This patch converts these
calls to pr_err() instead, so that they are now explicitly log level
ERR.
Signed-off-by: Chase Southwood <chase.southwood@gmail.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The functions free_ll_remote_perm(), free_rmtperm_hash() and iput() test
whether their argument is NULL and then return immediately.
Thus the test around their calls is not needed.
This issue was detected by using the Coccinelle software.
Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/staging/lustre/lustre/mdc/mdc_request.c:63:5: warning: symbol 'mdc_unpack_capa' was not declared. Should it be static?
drivers/staging/lustre/lustre/mdc/mdc_request.c:150:5: warning: symbol 'mdc_getstatus' was not declared. Should it be static?
drivers/staging/lustre/lustre/mdc/mdc_request.c:217:5: warning: symbol 'mdc_getattr' was not declared. Should it be static?
drivers/staging/lustre/lustre/mdc/mdc_request.c:261:5: warning: symbol 'mdc_getattr_name' was not declared. Should it be static?
drivers/staging/lustre/lustre/mdc/mdc_request.c:444:5: warning: symbol 'mdc_setxattr' was not declared. Should it be static?
drivers/staging/lustre/lustre/mdc/mdc_request.c:455:5: warning: symbol 'mdc_getxattr' was not declared. Should it be static?
Signed-off-by: Janet Liu <jianhua.ljh@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
these header files were included multiple times
Signed-off-by: Sudip Mukherjee <sudip@vectorindia.org>
Signed-off-by: Benjamin Romer <benjamin.romer@unisys.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Delete a local structure that is only used to be initialized by memset.
A semantic patch that makes this change is as follows:
(http://coccinelle.lip6.fr/)
// <smpl>
@@
identifier x,i;
@@
{
... when any
-struct i x;
<+... when != x
- memset(&x,...);
...+>
}
// </smpl>
Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Replace two instances of __attribute ((__packed__) with __packed macro
to address the warning found by the checkpatch.pl tool.
Signed-off-by: Geoff Darst <geoffda@comcast.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
"asm/unaligned.h" is more generic than "access_ok.h", and it may include
"access_ok.h", so need use it instead of "access_ok.h".
During building, "rtllib.h" has already include "asm/unaligned.h", so
will cause building issue. The related error (with allmodconfig under
parisc):
CC [M] drivers/staging/rtl8192e/rtl819x_BAProc.o
In file included from ./arch/parisc/include/asm/unaligned.h:4:0,
from include/linux/ieee80211.h:22,
from include/net/lib80211.h:31,
from drivers/staging/rtl8192e/rtllib.h:45,
from drivers/staging/rtl8192e/rtl819x_BAProc.c:20:
include/linux/unaligned/be_struct.h:6:19: error: redefinition of 'get_unaligned_be16'
static inline u16 get_unaligned_be16(const void *p)
^
In file included from drivers/staging/rtl8192e/rtl819x_BAProc.c:19:0:
include/linux/unaligned/access_ok.h:22:19: note: previous definition of 'get_unaligned_be16' was here
static inline u16 get_unaligned_be16(const void *p)
^
...
For independent from other include files, still suggest it includes
"asm/unaligned.h" too. And also include "asm/byteorder.h" since it is
the first include file".
Signed-off-by: Chen Gang <gang.chen.5i5j@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The clk_name gets the return value from kasprintf (part of which does the
allocation of the returned buffer). So check the return pointer
before using it for clk_register_fixed_factor.
Signed-off-by: Devendra Naga <devendra.aaru@gmail.com>
Reviewed-by: Soren Brinkmann <soren.brinkmann@xilinx.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Get rid of the alternate code paths since these weren't used and have
never been tested according to the in-code comments.
Signed-off-by: Jes Sorensen <Jes.Sorensen@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Use a separate variable to hold the value of REG_SPS0_CTRL to avoid it
getting clobbered and writing out garbage to it, for the case of
eRFPowerState == rf_sleep/rf_off && bRegSSPwrLvl == 1.
Signed-off-by: Jes Sorensen <Jes.Sorensen@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
