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There may be lots of pending requests so that the buffer of PAGE_SIZE
can't hold them at all.
One typical example is scsi-mq, the queue depth(.can_queue) of
scsi_host and blk-mq is quite big but scsi_device's queue_depth
is a bit small(.cmd_per_lun), then it is quite easy to have lots
of pending requests in hw queue.
This patch fixes the following warning and the related memory
destruction.
[ 359.025101] fill_read_buffer: blk_mq_hw_sysfs_show+0x0/0x7d returned bad count^M
[ 359.055595] irq event stamp: 15537^M
[ 359.055606] general protection fault: 0000 [#1] PREEMPT SMP DEBUG_PAGEALLOC ^M
[ 359.055614] Dumping ftrace buffer:^M
[ 359.055660] (ftrace buffer empty)^M
[ 359.055672] Modules linked in: nbd ipv6 kvm_intel kvm serio_raw^M
[ 359.055678] CPU: 4 PID: 21631 Comm: stress-ng-sysfs Not tainted 4.2.0-rc5-next-20150805 #434^M
[ 359.055679] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Bochs 01/01/2011^M
[ 359.055682] task: ffff8802161cc000 ti: ffff88021b4a8000 task.ti: ffff88021b4a8000^M
[ 359.055693] RIP: 0010:[<ffffffff811541c5>] [<ffffffff811541c5>] __kmalloc+0xe8/0x152^M
Cc: <stable@vger.kernel.org>
Signed-off-by: Ming Lei <ming.lei@canonical.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
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git://anongit.freedesktop.org/drm-intel into drm-next
single MST fixes from Maarten.
* tag 'topic/drm-fixes-2015-08-14' of git://anongit.freedesktop.org/drm-intel:
drm/dp/mst: Remove port after removing connector.
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git://anongit.freedesktop.org/drm-intel into drm-next
three display fixes for Intel.
* tag 'drm-intel-fixes-2015-08-14' of git://anongit.freedesktop.org/drm-intel:
drm/i915: Commit planes on each crtc separately.
drm/i915: calculate primary visibility changes instead of calling from set_config
drm/i915: Only dither on 6bpc panels
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It was just a wrapper around setup_timer() and could never fail, so just
call the real function, and fix up the function arguments of the
callbacks to be proper timer callback functions.
Cc: Johnny Kim <johnny.kim@atmel.com>
Cc: Rachel Kim <rachel.kim@atmel.com>
Cc: Dean Lee <dean.lee@atmel.com>
Cc: Chris Park <chris.park@atmel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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It was just a wrapper around del_timer_sync() so call that instead.
Cc: Johnny Kim <johnny.kim@atmel.com>
Cc: Rachel Kim <rachel.kim@atmel.com>
Cc: Dean Lee <dean.lee@atmel.com>
Cc: Chris Park <chris.park@atmel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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It was just a wrapper around del_timer() so call that instead.
Cc: Johnny Kim <johnny.kim@atmel.com>
Cc: Rachel Kim <rachel.kim@atmel.com>
Cc: Dean Lee <dean.lee@atmel.com>
Cc: Chris Park <chris.park@atmel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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It was not used for anything, so remove it, and the variables in
wilc_timer.c that were being passed of its type.
Cc: Johnny Kim <johnny.kim@atmel.com>
Cc: Rachel Kim <rachel.kim@atmel.com>
Cc: Dean Lee <dean.lee@atmel.com>
Cc: Chris Park <chris.park@atmel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Use the proper structure (struct timer_list) instead, which makes things
much more readable.
Cc: Johnny Kim <johnny.kim@atmel.com>
Cc: Rachel Kim <rachel.kim@atmel.com>
Cc: Dean Lee <dean.lee@atmel.com>
Cc: Chris Park <chris.park@atmel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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It was just a wrapper around usleep_range() so call that directly
instead and remove the now-empty file.
Cc: Johnny Kim <johnny.kim@atmel.com>
Cc: Rachel Kim <rachel.kim@atmel.com>
Cc: Dean Lee <dean.lee@atmel.com>
Cc: Chris Park <chris.park@atmel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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It's not being called, so delete these lines.
Cc: Johnny Kim <johnny.kim@atmel.com>
Cc: Rachel Kim <rachel.kim@atmel.com>
Cc: Dean Lee <dean.lee@atmel.com>
Cc: Chris Park <chris.park@atmel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Replace with struct vnt_tx_desc with all members the same.
volatile is removed from pointers as this generates warning
message.
Only the first four members of vnt_tx_desc need to be volatile.
Signed-off-by: Malcolm Priestley <tvboxspy@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Create struct vnt_td_info with members
mic_hdr
skb
buf
buf_dma
dwReqCount -> req_count
byFlags -> flags
In struct tagSTxDesc volatile is removed because it will generate a warning
(in any case this member is not) and renaming td_info.
Signed-off-by: Malcolm Priestley <tvboxspy@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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dwHeaderLength is assigned a value but that is never used.
Remove variable.
Signed-off-by: Malcolm Priestley <tvboxspy@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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dwReqCount is no bigger than u16
Signed-off-by: Malcolm Priestley <tvboxspy@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Create struct vnt_tdes1 that replaces members
wReqCount -> req_count
byTCR -> tcr
byReserved -> reserved
Signed-off-by: Malcolm Priestley <tvboxspy@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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create struct vnt_tdes0 replacing used members
byTSR0 -> tsr0
byTSR1 -> tsr1
f1Owner -> owner
Narrowing endian differences to inside structure.
Signed-off-by: Malcolm Priestley <tvboxspy@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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The .h file isn't needed at all, so just remove it.
Cc: Johnny Kim <johnny.kim@atmel.com>
Cc: Rachel Kim <rachel.kim@atmel.com>
Cc: Dean Lee <dean.lee@atmel.com>
Cc: Chris Park <chris.park@atmel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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It's no longer needed, so remove the empty wrapper function.
Cc: Johnny Kim <johnny.kim@atmel.com>
Cc: Rachel Kim <rachel.kim@atmel.com>
Cc: Dean Lee <dean.lee@atmel.com>
Cc: Chris Park <chris.park@atmel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Just use kfree, as that's all it resolves itself to.
Cc: Johnny Kim <johnny.kim@atmel.com>
Cc: Rachel Kim <rachel.kim@atmel.com>
Cc: Dean Lee <dean.lee@atmel.com>
Cc: Chris Park <chris.park@atmel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Fix "foo* bar" should be "foo *bar" errors as detected by
checkpatch.pl
Signed-off-by: Yash Shah <yshah1@visteon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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dm_odm was being checked for NULL after dereferencing it. Lets check for
NULL first before derefenrencing it.
Signed-off-by: Sudip Mukherjee <sudip@vectorindia.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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This patch replaces the void pointer type in the host interface
functions which process the message from host thread by the real data
type, tstrWILC_WFIDrv because the void pointer type as the arguments
is not clear and concise. In addition, typecasting to the void pointer
type is removed becasue it is not necessary.
Signed-off-by: Johnny Kim <johnny.kim@atmel.com>
Signed-off-by: Tony Cho <tony.cho@atmel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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This patch changes the void pointer member of the tstrHostIFmsg to the
real data type because the void pointer type is ambiguous and not
readable.
Signed-off-by: Johnny Kim <johnny.kim@atmel.com>
Signed-off-by: Tony Cho <tony.cho@atmel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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The structure, WILC_WFIDrvHandle is used to save the pointer address
for the driver handler which is used throughout the driver but it's
not easy to understand what it means. In addition, it doesn't support
the 64 bit machine and also causes the warnings for the 64 bit build.
This patch replaces the WILC_WFIDrvHandle by the tstrWILC_WFIDrv
because the tstrWILC_WFIDrv is real structure to represent the driver
handler and reduces the 64 bit compile warnings. Also, typecasting to
WILC_WFIDrvHandle is not needed by using tstrWILC_WFIDrv as is.
Signed-off-by: Johnny Kim <johnny.kim@atmel.com>
Signed-off-by: Tony Cho <tony.cho@atmel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Remove WILC_FREE that is replaced by kfree.
Signed-off-by: Chaehyun Lim <chaehyun.lim@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Use kfree instead of WILC_FREE.
Signed-off-by: Chaehyun Lim <chaehyun.lim@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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This patch remove unused memory functions because some macros with this
memory function are deleted.
Signed-off-by: Chaehyun Lim <chaehyun.lim@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Remove unused define macro that is never used.
Signed-off-by: Chaehyun Lim <chaehyun.lim@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Fix a macro with complex value coding style error.
Signed-off-by: Raphaël Beamonte <raphael.beamonte@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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This patch fixes issue generated by commit ca93dcba3a92
("staging: rtl8192e: Remove assert() macro")
One negation was missed in conversion, therefore
asserted message was always printed.
For 1MB file downloaded via http, ~500 messages
were generated.
Signed-off-by: Mateusz Kulikowski <mateusz.kulikowski@gmail.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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This is a patch to the vme_pio2_core.c that adds spaces around '-'.
Signed-off-by: Junsu Shin <jjunes0@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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This is a patch to vme_pio2_core.c that fixes up the NULL comparison style.
Signed-off-by: Junsu Shin <jjunes0@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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This is a patch to the vme_pio2_core.c that removes blank line after open brace '{'.
Signed-off-by: Junsu Shin <jjunes0@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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This is a patch to vm2_pio2_core.c that removes multiple blanks lines.
Signed-off-by: Junsu Shin <jjunes0@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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visorbus_dev_groups is not referenced outside visorbus_main.c, so it can
be declared static.
Found using sparse.
Signed-off-by: Michał Kępień <kernel@kempniu.pl>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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lines to visornic
This patch adds an module alias and a MODULE_DEVICE_TABLE to autoload the
visornic driver when an appropriate device is created by the visorbus.
Note, the correct way of fixing this is adding functionality to
scripts/mod/file2alias.c for the visorbus bus type.
Signed-off-by: Prarit Bhargava <prarit@redhat.com>
Signed-off-by: Benjamin Romer <benjamin.romer@unisys.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Using 'extern' is not necessary for function prototypes.
Miscellanea:
o Reflow alignments
Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Using 'extern' is not necessary for function prototypes.
Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Using 'extern' is not necessary for function prototypes.
Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Using 'extern' is not necessary for function prototypes.
Miscellanea:
o Reflow alignment
Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Using 'extern' is not necessary for function prototypes.
Miscellanea:
o Reflow alignments
Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Using 'extern' is not necessary for function prototypes.
Miscellanea:
o Reflow alignments
Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Using 'extern' is not necessary for function prototypes.
Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Using 'extern' is not necessary for function prototypes.
Miscellanea:
o Reflow alignments
Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Using 'extern' is not necessary for function prototypes.
Miscellanea:
o Reflow alignments
Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Using 'extern' is not necessary for function prototypes.
Signed-off-by: Joe Perches <joe@perches.com>
Acked-by: David Daney <david.daney@cavium.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Using 'extern' is not necessary for function prototypes.
Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Using 'extern' is not necessary for function prototypes.
Miscellanea:
o Reflow alignments
Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Without including ptlrpc_internal.h, GCC gives prototype warnings
"pack_generic.c:642:5: warning: no previous prototype for ..."
and sparse also complains "pack_generic.c:642:5: warning: symbol
'lustre_unpack_req_ptlrpc_body' was not declared. ..."
Signed-off-by: Ioan-Adrian Ratiu <adi@adirat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Remove "= NULL" in global variable
Signed-off-by: Swee Hua Law <sweehua81@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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