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Use dev_info instead of pr_info() in go7007-usb.c.
Signed-off-by: Dulshani Gunawardhana <dulshani.gunawardhana89@gmail.com>
Reviewed-by: Josh Triplett <josh@joshtriplett.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Use dev_err() instead of pr_err() in go7007-usb.c.
Signed-off-by: Dulshani Gunawardhana <dulshani.gunawardhana89@gmail.com>
Reviewed-by: Josh Triplett <josh@joshtriplett.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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lirc_imon.c
This patch replaces printk macro with dev_info(dev,....)
in lirc_imon.c
Signed-off-by: Archana kumari <archanakumari959@gmail.com>
Reviewed-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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This patch removes unnecessary static function
declarations in ft1000_hw.c
Signed-off-by: Ebru Akagunduz <ebru.akagunduz@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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This patch fixes the Sparse Warning: "symbol 'bootimage'
was not declared. Should it be static?" in boot.h
Signed-off-by: Ebru Akagunduz <ebru.akagunduz@gmail.com>
Reviewed-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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This patch fixes the Sparse Warning: "symbol 'ft1000_reset'
was not declared. Should it be static?" in ft1000_hw.c
Signed-off-by: Ebru Akagunduz <ebru.akagunduz@gmail.com>
Reviewed-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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sep_register_driver_with_fs()
Add the missing misc_deregister() before return from
sep_register_driver_with_fs() in the error handling case.
Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Remove the unused x86 implementation of this_cpu_xor().
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
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There is not a single user in the whole kernel.
Besides that this_cpu_xor() is broken anyway since it gets
translated to this_cpu_or() (see __pcpu_size_call() line).
So instead of fixing an unused definition just remove it.
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Acked-by: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Tejun Heo <tj@kernel.org>
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Add some missing command enumerations from the ATA-8 ACS-3 spec into
include/linux/ata.h, and add the corresponding human-readable command
descriptions in libata-eh.c.
Signed-off-by: Robert Hancock <hancockrwd@gmail.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
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The original code used the wrong parameter to clear tx_atten[]. It
passed the number of elements instead of sizeof() the array to memset.
The other potential issue was that cphy_base[] wasn't cleared. I'm not
sure if that was a real problem or not, but I have cleared it in my
patch.
Instead of using memset(), this patch uses empty initializers as a
cleanup.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Rob Herring <rob.herring@calxeda.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
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Tested with Marvell 88se9125, attached with one port mulitplier(5 ports)
and one disk, we will get following boot log messages if using current
code:
ata8: SATA link up 6.0 Gbps (SStatus 133 SControl 330)
ata8.15: Port Multiplier 1.2, 0x1b4b:0x9715 r160, 5 ports, feat 0x1/0x1f
ahci 0000:03:00.0: FBS is enabled
ata8.00: hard resetting link
ata8.00: SATA link down (SStatus 0 SControl 330)
ata8.01: hard resetting link
ata8.01: SATA link down (SStatus 0 SControl 330)
ata8.02: hard resetting link
ata8.02: SATA link down (SStatus 0 SControl 330)
ata8.03: hard resetting link
ata8.03: SATA link up 6.0 Gbps (SStatus 133 SControl 133)
ata8.04: hard resetting link
ata8.04: failed to resume link (SControl 133)
ata8.04: failed to read SCR 0 (Emask=0x40)
ata8.04: failed to read SCR 0 (Emask=0x40)
ata8.04: failed to read SCR 1 (Emask=0x40)
ata8.04: failed to read SCR 0 (Emask=0x40)
ata8.03: native sectors (2) is smaller than sectors (976773168)
ata8.03: ATA-8: ST3500413AS, JC4B, max UDMA/133
ata8.03: 976773168 sectors, multi 0: LBA48 NCQ (depth 31/32)
ata8.03: configured for UDMA/133
ata8.04: failed to IDENTIFY (I/O error, err_mask=0x100)
ata8.15: hard resetting link
ata8.15: SATA link up 6.0 Gbps (SStatus 133 SControl 330)
ata8.15: Port Multiplier vendor mismatch '0x1b4b' != '0x133'
ata8.15: PMP revalidation failed (errno=-19)
ata8.15: hard resetting link
ata8.15: SATA link up 6.0 Gbps (SStatus 133 SControl 330)
ata8.15: Port Multiplier vendor mismatch '0x1b4b' != '0x133'
ata8.15: PMP revalidation failed (errno=-19)
ata8.15: limiting SATA link speed to 3.0 Gbps
ata8.15: hard resetting link
ata8.15: SATA link up 3.0 Gbps (SStatus 123 SControl 320)
ata8.15: Port Multiplier vendor mismatch '0x1b4b' != '0x133'
ata8.15: PMP revalidation failed (errno=-19)
ata8.15: failed to recover PMP after 5 tries, giving up
ata8.15: Port Multiplier detaching
ata8.03: disabled
ata8.00: disabled
ata8: EH complete
The reason is that current detection code doesn't follow AHCI spec:
First,the port multiplier detection process look like this:
ahci_hardreset(link, class, deadline)
if (class == ATA_DEV_PMP) {
sata_pmp_attach(dev) /* will enable FBS */
sata_pmp_init_links(ap, nr_ports);
ata_for_each_link(link, ap, EDGE) {
sata_std_hardreset(link, class, deadline);
if (link_is_online) /* do soft reset */
ahci_softreset(link, class, deadline);
}
}
But, according to chapter 9.3.9 in AHCI spec: Prior to issuing software
reset, software shall clear PxCMD.ST to '0' and then clear PxFBS.EN to
'0'.
The patch test ok with kernel 3.11.1.
tj: Patch white space contaminated, applied manually with trivial
updates.
Signed-off-by: Xiangliang Yu <yuxiangl@marvell.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: stable@vger.kernel.org
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6.0 Gbps link speed was not decoded properly:
speed was reported at 3.0 Gbps only.
Tested: On a machine where libata reports 6.0 Gbps in
/var/log/messages:
ata1: SATA link up 6.0 Gbps (SStatus 133 SControl 300)
Before:
cat /sys/class/ata_link/link1/sata_spd
3.0 Gbps
After:
cat /sys/class/ata_link/link1/sata_spd
6.0 Gbps
Signed-off-by: Gwendal Grignou <gwendal@google.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: stable@vger.kernel.org
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This patch fixes the following checkpatch.pl warning in lustre/ldlm/ldlm_request.c-
WARNING: __func__ should be used instead of gcc specific __FUNCTION__
Signed-off-by: Rashika Kheria <rashika.kheria@gmail.com>
Reviewed-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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This patch fixes the following checkpatch.pl warning in lustre/ldlm/ldlm_extent.c-
ERROR: return is not a function, parentheses are not required
Signed-off-by: Rashika Kheria <rashika.kheria@gmail.com>
Reviewed-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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This patch fixes the following checkpatch.pl warning in lustre/ldlm/interval_tree.c-
ERROR: space required after that ',' (ctx:VxV)
Signed-off-by: Rashika Kheria <rashika.kheria@gmail.com>
Reviewed-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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This patch fixes the following checkpatch.pl warning in lustre/ldlm/interval_tree.c-
WARNING: please, no spaces at the start of a line
Signed-off-by: Rashika Kheria <rashika.kheria@gmail.com>
Reviewed-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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This patch fixes the following checkpatch.pl warning in lustre/ldlm/interval_tree.c-
WARNING: suspect code indent for conditional statements
Signed-off-by: Rashika Kheria <rashika.kheria@gmail.com>
Reviewed-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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This patch fixes the following checkpatch.pl error in
lnet/lnet/config.c:
ERROR: do not initialise statics to 0 or NULL
Signed-off-by: Rashika Kheria <rashika.kheria@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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This patch fixes the following checkpatch.pl issues in
lnet/lnet/config.c:
WARNING: quoted string split across lines
Signed-off-by: Rashika Kheria <rashika.kheria@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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This patch fixes the following checkpatch.pl warning in
lnet/lnet/config.c-
WARNING: space prohibited between function name and open parenthesis '('
Signed-off-by: Rashika Kheria <rashika.kheria@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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As per coding style guidelines C89 comment style /*...*/
is preferred over C99 comment style //, hence replaced
C99 comment style by C89 comment style to fix checkpatch
error
Signed-off-by: Nandini Hanumanthagowda <nandu.hgowda@gmail.com>
Reviewed-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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added space before the open parenthesis to fix checkpatch error
Signed-off-by: Nandini Hanumanthagowda <nandu.hgowda@gmail.com>
Reviewed-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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This patch fixes the following checkpatch.pl issues in lnet/lnet/acceptor.c:
WARNING: labels should not be indented
Signed-off-by: Rashika Kheria <rashika.kheria@gmail.com>
Reviewed-by: Lisa Nguyen <lisa@xenapiadmin.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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This patch fixes the following checkpatch.pl issues in lnet/lnet/acceptor.c:
ERROR: do not initialise statics to 0 or NULL
Signed-off-by: Rashika Kheria <rashika.kheria@gmail.com>
Reviewed-by: Lisa Nguyen <lisa@xenapiadmin.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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This patch fixes the following checkpatch.pl issues in lnet/lnet/acceptor.c:
WARNING: quoted string split across lines
Signed-off-by: Rashika Kheria <rashika.kheria@gmail.com>
Reviewed-by: Lisa Nguyen <lisa@xenapiadmin.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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function/variable
This patch fixes the following checkpatch.pl issues in lnet/lnet/acceptor.c:
WARNING: EXPORT_SYMBOL(foo); should immediately follow its function/variable
Signed-off-by: Rashika Kheria <rashika.kheria@gmail.com>
Reviewed-by: Lisa Nguyen <lisa@xenapiadmin.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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This patch fixes the following checkpatch.pl issues in lnet/lnet/acceptor.c:
WARNING: space prohibited between function name and open parenthesis '('
Signed-off-by: Rashika Kheria <rashika.kheria@gmail.com>
Reviewed-by: Lisa Nguyen <lisa@xenapiadmin.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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There was a warning on running checkpatch.pl on the file
drivers/staging/lustre/lustre/osc/osc_io.c which stated:
WARNING: space prohibited between function name and open parenthesis '('
108: FILE: staging/lustre/lustre/osc/osc_io.c:108:
+ LIST_HEAD (list);
total: 0 errors, 1 warnings, 828 lines checked
To get rid of the warning the extra spaces were eliminated.
Signed-off-by: Himangi Saraogi <himangi774@gmail.com>
Reviewed-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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This patch fixes coccinelle error regarding usage of IS_ERR and
PTR_ERR instead of PTR_ERR_OR_ZERO.
Signed-off-by: Valentina Manea <valentina.manea.m@gmail.com>
Reviewed-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Reformat a pointer variable in lib-lnet.h to meet kernel
coding style and eliminate pointer format warning
generated by checkpatch.pl
Signed-off-by: Lisa Nguyen <lisa@xenapiadmin.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Remove unnecessary parentheses from return statements in lib-lnet.h
to meet kernel coding style.
Signed-off-by: Lisa Nguyen <lisa@xenapiadmin.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Remove spaces between function names and open parentheses to
meet kernel coding style and eliminate extra space warnings
generated by checkpatch.pl
Signed-off-by: Lisa Nguyen <lisa@xenapiadmin.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Remove typedef keyword and rename the cfs_hash_t struct to
cfs_hash in libcfs_hash.h. These changes resolve the "Do
not add new typedefs" warning generated by checkpatch.pl
and meet kernel coding style.
Struct variables in other header and source files that
depend on libcfs_hash.h are updated as well.
Signed-off-by: Lisa Nguyen <lisa@xenapiadmin.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Remove typedef keyword and rename the cfs_hash_bd_t struct to
cfs_hash_bd in libcfs_hash.h. These changes resolve the
"Do not add new typedefs" warning generated by checkpatch.pl
and meet kernel coding style.
Struct variables in other header and source files that depend
on libcfs_hash.h are updated as well.
Signed-off-by: Lisa Nguyen <lisa@xenapiadmin.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Removed typedef keyword and rename the cfs_debug_limit_state_t
struct to cfs_debug_limit_state in libcfs_debug.h. These changes
resolve the "Do not add new typedefs" warning generated by
checkpatch.pl and meet kernel coding style.
Struct variables in other header and source files
that depend on libcfs_debug.h are updated as well.
Signed-off-by: Lisa Nguyen <lisa@xenapiadmin.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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As reported by Fengguang:
config: make ARCH=parisc allyesconfig
All warnings:
drivers/staging/lustre/lustre/llite/lproc_llite.c: In function 'll_rw_extents_stats_pp_seq_show':
>> drivers/staging/lustre/lustre/llite/lproc_llite.c:1069:6: warning: format '%lu' expects argument of type 'long unsigned int', but argument 4 has type '__kernel_suseconds_t' [-Wformat]
drivers/staging/lustre/lustre/llite/lproc_llite.c: In function 'll_rw_extents_stats_seq_show':
>> drivers/staging/lustre/lustre/llite/lproc_llite.c:1133:6: warning: format '%lu' expects argument of type 'long unsigned int', but argument 4 has type '__kernel_suseconds_t' [-Wformat]
drivers/staging/lustre/lustre/llite/lproc_llite.c: In function 'll_rw_offset_stats_seq_show':
>> drivers/staging/lustre/lustre/llite/lproc_llite.c:1299:6: warning: format '%lu' expects argument of type 'long unsigned int', but argument 4 has type '__kernel_suseconds_t' [-Wformat]
--
drivers/staging/lustre/lustre/obdclass/lprocfs_status.c: In function 'lprocfs_stats_seq_show':
>> drivers/staging/lustre/lustre/obdclass/lprocfs_status.c:1070:5: warning: format '%lu' expects argument of type 'long unsigned int', but argument 5 has type '__kernel_suseconds_t' [-Wformat]
--
drivers/staging/lustre/lustre/osc/lproc_osc.c: In function 'osc_rpc_stats_seq_show':
>> drivers/staging/lustre/lustre/osc/lproc_osc.c:575:6: warning: format '%lu' expects argument of type 'long unsigned int', but argument 4 has type '__kernel_suseconds_t' [-Wformat]
drivers/staging/lustre/lustre/osc/lproc_osc.c: In function 'osc_stats_seq_show':
>> drivers/staging/lustre/lustre/osc/lproc_osc.c:687:6: warning: format '%lu' expects argument of type 'long unsigned int', but argument 4 has type '__kernel_suseconds_t' [-Wformat]
Reported-by: Fengguang Wu <fengguang.wu@intel.com>
Signed-off-by: Peng Tao <bergwolf@gmail.com>
Signed-off-by: Andreas Dilger <andreas.dilger@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Running on 3.11-rc4 kernel, I got below endless loop. It turns to be that Lustre
always saves the first page of a dir inode mapping at index ~0UL. And after
commit 5a720394 (mm: teach truncate_inode_pages_range() to handle non page
aligned ranges), truncate_inode_pages_range() _NO LONGER_ truncates the page
that is sitting at index ~0UL.
[16768.998006] mkdir R running task 0 2717 2716 0x00000080
[16768.998073] 000000000000000e 0000000000000000 0000000000000000 ffff88000be00460
[16768.998157] ffff88000ea65908 ffffffff810fec3e ffff88000ea65968 ffff8800229e7750
[16768.998241] ffff88000ea658b8 0000000000000000 0000000000000000 ffff88000ea65958
[16768.998326] Call Trace:
[16768.998401] [<ffffffff810fc6ed>] ? rcu_read_unlock+0x1c/0x2d
[16768.998473] [<ffffffff810fec3e>] ? find_get_pages+0xf5/0x11b
[16768.998530] [<ffffffff811078f0>] ? pagevec_lookup+0x20/0x2a
[16768.998586] [<ffffffff8110920e>] ? truncate_inode_pages_range.part.2+0x161/0x39a
[16768.998680] [<ffffffffa02ad5dc>] ? ll_md_blocking_ast+0x338/0x62f [lustre]
[16768.998744] [<ffffffff8110947f>] ? truncate_inode_pages_range+0x38/0x3f
[16768.998805] [<ffffffff811094f8>] ? truncate_inode_pages+0x12/0x14
[16768.998871] [<ffffffffa02ad6e8>] ? ll_md_blocking_ast+0x444/0x62f [lustre]
[16768.998948] [<ffffffff810981b5>] ? arch_local_irq_save+0x9/0xc
[16768.999022] [<ffffffffa07ee0e8>] ? ldlm_cancel_callback+0x67/0x12a [ptlrpc]
[16768.999100] [<ffffffffa07f85b2>] ? ldlm_cli_cancel_local+0xf3/0x2bc [ptlrpc]
[16768.999176] [<ffffffffa07f9163>] ? ldlm_cli_cancel_list_local+0x7e/0x1e4 [ptlrpc]
[16768.999268] [<ffffffffa07f9473>] ? ldlm_cancel_resource_local+0x1aa/0x1b9 [ptlrpc]
[16768.999385] [<ffffffffa0657bad>] ? mdc_resource_get_unused+0xf8/0x115 [mdc]
[16768.999472] [<ffffffff8109c887>] ? trace_hardirqs_on+0xd/0xf
[16768.999533] [<ffffffffa06583d8>] ? mdc_create+0x11e/0x4db [mdc]
[16768.999597] [<ffffffff8152ed84>] ? mutex_unlock+0xe/0x10
[16768.999654] [<ffffffffa0350e99>] ? lmv_create+0x355/0x3e9 [lmv]
[16768.999712] [<ffffffff811553b7>] ? final_putname+0x35/0x39
[16768.999775] [<ffffffffa02ae167>] ? ll_new_node+0x33b/0x3ff [lustre]
[16768.999841] [<ffffffffa02ae62c>] ? ll_mkdir+0xf2/0x127 [lustre]
[16768.999897] [<ffffffff81156996>] ? vfs_mkdir+0x84/0xc9
[16768.999961] [<ffffffff81158cf8>] ? SyS_mkdirat+0x77/0xad
[16769.000014] [<ffffffff81158d47>] ? SyS_mkdir+0x19/0x1b
[16769.000066] [<ffffffff81538652>] ? system_call_fastpath+0x16/0x1b
Signed-off-by: Peng Tao <bergwolf@gmail.com>
Signed-off-by: Andreas Dilger <andreas.dilger@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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It is left over when porting Lustre tree patch in commit (e62e5d92) and should be
removed.
Signed-off-by: Peng Tao <bergwolf@gmail.com>
Signed-off-by: Andreas Dilger <andreas.dilger@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Remove typedef keyword and rename the cfs_hash_bucket_t struct to
cfs_hash_bucket in libcfs_hash.h. These changes resolve the
"Do not add new typedefs" warning generated by checkpatch.pl and
meet kernel coding style.
The struct variables in hash.c are updated to reflect this change
as well.
Signed-off-by: Lisa Nguyen <lisa@xenapiadmin.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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In case of error, the function platform_get_resource() returns NULL
pointer not ERR_PTR(). The IS_ERR() test in the return value check
should be replaced with NULL test.
Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: Mark Brown <broonie@linaro.org>
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Reported-by: Nariman Poushin <nariman.poushin@wolfsonmicro.com>
Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
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Even though the omission was found only during code review
(originally in the Xen hypervisor, looking through ACPI v5 flags
and their meanings and uses), we shouldn't be creating a
corresponding platform device in that case.
Signed-off-by: Jan Beulich <jbeulich@suse.com>
Cc: John Stultz <john.stultz@linaro.org>
Link: http://lkml.kernel.org/r/5265029D02000078000FC4D2@nat28.tlf.novell.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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struct cpu_dev's c_models is only ever set inside CONFIG_X86_32
conditionals (or code that's being built for 32-bit only), so
there's no use of reserving the (empty) space for the model
names in a 64-bit kernel.
Similarly, c_size_cache is only used in the #else of a
CONFIG_X86_64 conditional, so reserving space for (and in one
case even initializing) that field is pointless for 64-bit
kernels too.
While moving both fields to the end of the structure, I also
noticed that:
- the c_models array size was one too small, potentially causing
table_lookup_model() to return garbage on Intel CPUs (intel.c's
instance was lacking the sentinel with family being zero), so the
patch bumps that by one,
- c_models' vendor sub-field was unused (and anyway redundant
with the base structure's c_x86_vendor field), so the patch deletes it.
Also rename the legacy fields so that their legacy nature stands out
and comment their declarations.
Signed-off-by: Jan Beulich <jbeulich@suse.com>
Link: http://lkml.kernel.org/r/5265036802000078000FC4DB@nat28.tlf.novell.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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With power-cut emulation, it is possible that sometimes no data at all is
corrupted and that confusing messages are printed due to errors in the
computation of data corruption range.
[1] The start of the range should be [0..len-1], not [0..len].
[2] The end of the range should always be at least 1 greater than the start.
Signed-off-by: Mats Karrman <mats.karrman@tritech.se>
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
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Similarly to copy_from_user(), where the range check is to
protect against kernel memory corruption, copy_to_user() can
benefit from such checking too: Here it protects against kernel
information leaks.
Signed-off-by: Jan Beulich <jbeulich@suse.com>
Cc: <arjan@linux.intel.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/5265059502000078000FC4F6@nat28.tlf.novell.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Cc: Arjan van de Ven <arjan@linux.intel.com>
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Commits 4a3127693001c61a21d1ce680db6340623f52e93 ("x86: Turn the
copy_from_user check into an (optional) compile time warning")
and 63312b6a6faae3f2e5577f2b001e3b504f10a2aa ("x86: Add a
Kconfig option to turn the copy_from_user warnings into errors")
touched only the 32-bit variant of copy_from_user(), whereas the
original commit 9f0cf4adb6aa0bfccf675c938124e68f7f06349d ("x86:
Use __builtin_object_size() to validate the buffer size for
copy_from_user()") also added the same code to the 64-bit one.
Further the earlier conversion from an inline WARN() to the call
to copy_from_user_overflow() went a little too far: When the
number of bytes to be copied is not a constant (e.g. [looking at
3.11] in drivers/net/tun.c:__tun_chr_ioctl() or
drivers/pci/pcie/aer/aer_inject.c:aer_inject_write()), the
compiler will always have to keep the funtion call, and hence
there will always be a warning. By using __builtin_constant_p()
we can avoid this.
And then this slightly extends the effect of
CONFIG_DEBUG_STRICT_USER_COPY_CHECKS in that apart from
converting warnings to errors in the constant size case, it
retains the (possibly wrong) warnings in the non-constant size
case, such that if someone is prepared to get a few false
positives, (s)he'll be able to recover the current behavior
(except that these diagnostics now will never be converted to
errors).
Since the 32-bit variant (intentionally) didn't call
might_fault(), the unification results in this being called
twice now. Adding a suitable #ifdef would be the alternative if
that's a problem.
I'd like to point out though that with
__compiletime_object_size() being restricted to gcc before 4.6,
the whole construct is going to become more and more pointless
going forward. I would question however that commit
2fb0815c9ee6b9ac50e15dd8360ec76d9fa46a2 ("gcc4: disable
__compiletime_object_size for GCC 4.6+") was really necessary,
and instead this should have been dealt with as is done here
from the beginning.
Signed-off-by: Jan Beulich <jbeulich@suse.com>
Cc: Arjan van de Ven <arjan@linux.intel.com>
Cc: Guenter Roeck <linux@roeck-us.net>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: http://lkml.kernel.org/r/5265056D02000078000FC4F3@nat28.tlf.novell.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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This issue was introduced by 454c79999f7e ("sched/rt: Fix SCHED_RR
across cgroups") that missed the word 'not'. Fix it.
Signed-off-by: Li Bin <huawei.libin@huawei.com>
Cc: <guohanjun@huawei.com>
Cc: <xiexiuqi@huawei.com>
Cc: <peterz@infradead.org>
Link: http://lkml.kernel.org/r/1382357743-54136-1-git-send-email-huawei.libin@huawei.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Fix to return -ENOMEM in the kmalloc() and d_make_root() error handling
case instead of 0, as done elsewhere in those functions.
Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/ras/ras into x86/mce
Pull MCE updates from Tony Luck:
"There is a enhanced error logging mechanism for Xeon processors.
Full description is here:
http://www.intel.com/content/www/us/en/architecture-and-technology/enhanced-mca-logging-xeon-paper.html
This patch series provides a module (and support code) to
check for an extended error log and print extra details about
the error on the console.
"
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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