staging: rtl8192u: r8192U_core: fix comments lines over 80 characters
Move, replace and reorganize comments to stay under 80 characters
per line, as to follow the kernel code style. Some unuseful comments
have been removed.
Glen Lee [Wed, 16 Sep 2015 09:53:26 +0000 (18:53 +0900)]
staging: wicl1000: remove function pointer wlan_handle_rx_que
The function pointer wlan_handle_rx_que is not called anywhere. Delete
wlan_handle_rx_que and it's assignment code.
But the function wilc_wlan_handle_rxq in assignment code is used. So leave it.
Signed-off-by: Glen Lee <glen.lee@atmel.com> Signed-off-by: Tony Cho <tony.cho@atmel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The rxq_thread never runs since it's kthread_run code was delete in a previous
patch. Remove kthread_run and it's related codes.
Signed-off-by: Glen Lee <glen.lee@atmel.com> Signed-off-by: Tony Cho <tony.cho@atmel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
They are never aquired(down) since down function was only called in
linux_wlan_rxq_task which was deleted in a previous patch.
So delete variable rxq_event, rxq_wait_event, rxq_wait and it's related codes.
Signed-off-by: Glen Lee <glen.lee@atmel.com> Signed-off-by: Tony Cho <tony.cho@atmel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
rxq_thread_started is initiallized but never used in the driver. Remove
the variable and init code line.
Signed-off-by: Glen Lee <glen.lee@atmel.com> Signed-off-by: Tony Cho <tony.cho@atmel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Glen Lee [Wed, 16 Sep 2015 09:53:23 +0000 (18:53 +0900)]
staging: wilc1000: remove function linux_wlan_rxq_task
linux_wlan_rxq_task is not used in the driver. Just remove it.
Signed-off-by: Glen Lee <glen.lee@atmel.com> Signed-off-by: Tony Cho <tony.cho@atmel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Glen Lee [Wed, 16 Sep 2015 09:53:22 +0000 (18:53 +0900)]
staging: wilc1000: remove define TCP_ENHANCEMENTS and it's related code
TCP_ENHANCEMENTS is always in use. Remove define TCP_ENHANCEMENTS, ifdef line,
ifndef line and codes inside ifndef.
Signed-off-by: Glen Lee <glen.lee@atmel.com> Signed-off-by: Tony Cho <tony.cho@atmel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Glen Lee [Wed, 16 Sep 2015 09:53:21 +0000 (18:53 +0900)]
staging: wilc1000: remove define WILC_P2P and ifdef line
WILC_P2P is always used in the driver. So delete define WILC_P2P and ifdef line.
Signed-off-by: Glen Lee <glen.lee@atmel.com> Signed-off-by: Tony Cho <tony.cho@atmel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Glen Lee [Wed, 16 Sep 2015 09:53:20 +0000 (18:53 +0900)]
staging: wilc1000: remove define WILC_AP_EXTERNAL_MLME and ifdef line
This driver use WILC_AP_EXTERNAL_MLME define always. Delete define
WILC_AP_EXTERNAL_MLME and ifdef line.
Signed-off-by: Glen Lee <glen.lee@atmel.com> Signed-off-by: Tony Cho <tony.cho@atmel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Leo Kim [Wed, 16 Sep 2015 09:36:02 +0000 (18:36 +0900)]
staging: wilc1000: remove definitions unused
Remove the definitions which are not used anywhere.
- WILC_ALREADY_EXSIT
- WILC_EMPTY
- WILC_FULL
- WILC_CANCELED
- WILC_INVALID_FILE
- WILC_UNSUPPORTED_VERSION
- WILC_FILE_EOF
Remove the definition which is not used anymore.
- WILC_CATCH
Signed-off-by: Leo Kim <leo.kim@atmel.com> Signed-off-by: Tony Cho <tony.cho@atmel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Leo Kim [Wed, 16 Sep 2015 09:36:01 +0000 (18:36 +0900)]
staging: wilc1000: remove the macro WILC_ERRORREPORT
This patch removes the macro WILC_ERRORREPORT which is not used
anymore by replacing it with the plain statements.
The compiler complains the build warnings in some functions for WILC_CATCH and
ERRORHANDLER as unused definitions. So, this patch also removes WILC_CATCH and
ERRORHANDLER from some of functions.
Signed-off-by: Leo Kim <leo.kim@atmel.com> Signed-off-by: Tony Cho <tony.cho@atmel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Leo Kim [Wed, 16 Sep 2015 09:35:59 +0000 (18:35 +0900)]
staging: wilc1000: remove a macro WILC_NULLCHECK
This patch replaces WILC_NULLCHECK with the plain statements and then removes
the macro WILC_NULLCHECK in wilc_errorsupport.h which is not used anymore.
Signed-off-by: Leo Kim <leo.kim@atmel.com> Signed-off-by: Tony Cho <tony.cho@atmel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
g_flushing_in_progress is never used so just delete it.
Signed-off-by: Glen Lee <glen.lee@atmel.com> Signed-off-by: Tony Cho <tony.cho@atmel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The define MAX_PACKET_BUFF_SIZE and STATUS_MSG_LEN is not used in the driver.
Delete two defines.
Signed-off-by: Glen Lee <glen.lee@atmel.com> Signed-off-by: Tony Cho <tony.cho@atmel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Glen Lee [Wed, 16 Sep 2015 01:43:53 +0000 (10:43 +0900)]
staging: wilc1000: delete function declaration SendRawPacket
SendRawpacket is declared but not implemented. It is not used also.
So just delete it.
Signed-off-by: Glen Lee <glen.lee@atmel.com> Signed-off-by: Tony Cho <tony.cho@atmel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Glen Lee [Wed, 16 Sep 2015 01:43:52 +0000 (10:43 +0900)]
staging: wilc1000: remove unused variables
Variable g_num_total_switches is never used so just remove it.
gastrWIDs is also not used because g_num_total_switches is deleted.
Remove gastrWIDs also.
Signed-off-by: Glen Lee <glen.lee@atmel.com> Signed-off-by: Tony Cho <tony.cho@atmel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Glen Lee [Wed, 16 Sep 2015 01:43:51 +0000 (10:43 +0900)]
staging: wilc1000: delete unused global variables.
gstrConfigPktInfo, SemHandleSendPkt and SemHandlePktResp are never used in
the drivers. So just delete the variables and it's related code.
Signed-off-by: Glen Lee <glen.lee@atmel.com> Signed-off-by: Tony Cho <tony.cho@atmel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Glen Lee [Wed, 16 Sep 2015 01:43:50 +0000 (10:43 +0900)]
staging: wilc1000: remove unnecessary extern function declaration
Function NetworkInfoReceived, GnrlAsyncInfoReceived and
host_int_ScanCompleteReceived are declared in the header file already.
Just removes the declaration and comments.
Signed-off-by: Glen Lee <glen.lee@atmel.com> Signed-off-by: Tony Cho <tony.cho@atmel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Glen Lee <glen.lee@atmel.com> Signed-off-by: Tony Cho <tony.cho@atmel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
wilc1000 driver does not support five Ghz band. Remove FIVE_GHZ_BAND and
it's related code.
Signed-off-by: Glen Lee <glen.lee@atmel.com> Signed-off-by: Tony Cho <tony.cho@atmel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The define PHY_802_11n is useless because wilc1000 support 802.11n as always.
Remove PHY_802_11n and it related code.
Signed-off-by: Glen Lee <glen.lee@atmel.com> Signed-off-by: Tony Cho <tony.cho@atmel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Tony Cho [Wed, 16 Sep 2015 01:43:46 +0000 (10:43 +0900)]
staging: wilc1000: remove PANDA_BOARD
This patch removes one of the platform dependencies, PANDA_BOARD from the
driver codes. The device tree will provide the platform dependencies in
the future commits.
Signed-off-by: Tony Cho <tony.cho@atmel.com> Signed-off-by: Glen Lee <glen.lee@atmel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Juston Li [Thu, 17 Sep 2015 02:51:56 +0000 (19:51 -0700)]
staging/lustre: use __noreturn for lbug_with_loc
fixes sparse error:
drivers/staging/lustre/lustre/libcfs/linux/linux-debug.c:149:6: error:
symbol 'lbug_with_loc'redeclared with different type (originally declared at
drivers/staging/lustre/lustre/libcfs/linux/../../../include/linux/libcfs/libcfs_private.h:82)
- different modifiers
Use the __noreturn macro instead of __attribute__((noreturn))
The macro is exactly that but its usage seems more common and
it is bit more readable.
Signed-off-by: Juston Li <juston.h.li@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
staging/lustre: Remove lustre used memory tracking framework
Lustre memory allocation framework has a feature to track amount
of allocated memory, but since it's not being used consistently anymore
and is on the way out in general, just remove it.
Lustre memory allocation wrappers also included a fault injection
framework that's totally redundant, since in-kernel offering is
actually superior to what we had.
So let's remove it.
staging/lustre: Remove unused OBD_ALLOC* and OBD_FREE macros
This removes now unused OBD_ALLOC, OBD_ALLOC_GFP, OBD_ALLOC_PTR,
OBD_ALLOC_LARGE and supporting infrastructure.
Also OBD_FREE, OBD_FREE_PTR, OBD_FREE_LARGE and supporting infrastructure.
Nicolas Joseph [Tue, 15 Sep 2015 09:35:20 +0000 (11:35 +0200)]
staging/rtl8192u: remove unused function
Remove unused function N_DBPSOfRate. This function was only used by
function ComputeTxTime that was removed in the previous
commit 742728f97a99 ("staging: rtl8192u: remove unused function.")
Signed-off-by: Nicolas Joseph <nicolas.joseph@homecomputing.fr> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Dan Carpenter [Tue, 15 Sep 2015 06:54:33 +0000 (09:54 +0300)]
staging: wilc1000: off by one in get_handler_from_id()
The > should be >= here or we read beyond the end of the array.
Fixes: d42ab0838d04 ('staging: wilc1000: use id value as argument') Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Olaf Weber [Mon, 14 Sep 2015 22:41:35 +0000 (18:41 -0400)]
staging/lustre/ptlrpc: make ptlrpcd threads cpt-aware
On NUMA systems, the placement of worker threads relative to the
memory they use greatly affects performance. The CPT mechanism can be
used to constrain a number of Lustre thread types, and this change
makes it possible to configure the placement of ptlrpcd threads in a
similar manner.
To simplify the code changes, the global structures used to manage
ptlrpcd threads are changed to one per CPT. In particular this means
there will be one ptlrpcd recovery thread per CPT.
To prevent ptlrpcd threads from wandering all over the system, all
ptlrpcd thread are bound to a CPT. Note that some CPT configuration
is always created, but the defaults are not likely to be correct for
a NUMA system. After discussing the options with Liang Zhen we
decided that we would not bind ptlrpcd threads to specific CPUs,
and rather trust the kernel scheduler to migrate ptlrpcd threads.
With all ptlrpcd threads bound to a CPT, but not to specific CPUs,
the load policy mechanism can be radically simplified:
- PDL_POLICY_LOCAL and PDL_POLICY_ROUND are currently identical.
- PDL_POLICY_ROUND, if fully implemented, would cost us the locality
we are trying to achieve, so most or all calls using this policy
would have to be changed to PDL_POLICY_LOCAL.
- PDL_POLICY_PREFERRED is not used, and cannot be implemented without
binding ptlrpcd threads to individual CPUs.
- PDL_POLICY_SAME is rarely used, and cannot be implemented without
binding ptlrpcd threads to individual CPUs.
The partner mechanism is also updated, because now all ptlrpcd
threads are "bound" threads. The only difference between the various
bind policies, PDB_POLICY_NONE, PDB_POLICY_FULL, PDB_POLICY_PAIR, and
PDB_POLICY_NEIGHBOR, is the number of partner threads. The bind
policy is replaced with a tunable that directly specifies the size of
the groups of ptlrpcd partner threads.
Ensure that the ptlrpc_request_set for a ptlrpcd thread is created on
the same CPT that the thread will work on. When threads are bound to
specific nodes and/or CPUs in a NUMA system, it pays to ensure that
the datastructures used by these threads are also on the same node.
Visible changes:
* ptlrpcd thread names include the CPT number, for example
"ptlrpcd_02_07". In this case the "07" is relative to the CPT, and
not a CPU number.
Tunables added:
* ptlrpcd_cpts (string): A CPT string describing the CPU partitions
that ptlrpcd threads should run on. Used to make ptlrpcd threads
run on a subset of all CPTs.
* ptlrpcd_per_cpt_max (int): The maximum number of ptlrpcd threads
to run in a CPT.
* ptlrpcd_partner_group_size (int): The desired number of threads
in each ptlrpcd partner thread group. Default is 2, corresponding
to the old PDB_POLICY_PAIR. A negative value makes all ptlrpcd
threads in a CPT partners of each other.
Tunables obsoleted:
* max_ptlrpcds: The new ptlrcpd_per_cpt_max can be used to obtain the
same effect.
* ptlrpcd_bind_policy: The new ptlrpcd_partner_group_size can be used
to obtain the same effect.
Internal interface changes:
* pdb_policy_t and related code have been removed. Groups of partner
ptlrpcd threads are still created, and all threads in a partner
group are bound on the same CPT. The ptlrpcd threads bound to a
CPT are typically divided into several partner groups. The partner
groups on a CPT all have an equal number of ptlrpcd threads.
* pdl_policy_t and related code have been removed. Since ptlrpcd
threads are not bound to a specific CPU, all the code that avoids
scheduling on the current CPU (or attempts to do so) has been
removed as non-functional. A simplified form of PDL_POLICY_LOCAL
is kept as the only load policy.
* LIOD_BIND and related code have been removed. All ptlrpcd threads
are now bound to a CPT, and no additional binding policy is
implemented.
* ptlrpc_prep_set(): Changed to allocate a ptlrpc_request_set
on the current CPT.
* ptlrpcd(): If an error is encountered before entering the main loop
store the error in pc_error before exiting.
* ptlrpcd_start(): Check pc_error to verify that the ptlrpcd thread
has successfully entered its main loop.
* ptlrpcd_init(): Initialize the struct ptlrpcd_ctl for all threads
for a CPT before starting any of them. This closes a race during
startup where a partner thread could reference a non-initialized
struct ptlrpcd_ctl.
staging/lustre/o2iblnd: leak cmid in kiblnd_dev_need_failover
cmid created by kiblnd_dev_need_failover should always be destroyed,
however it is not the case in current implementation and we will leak
cmid when this function detected a device failover.
Li Xi [Mon, 14 Sep 2015 22:41:32 +0000 (18:41 -0400)]
staging/lustre/osc: use global osc_rq_pool to reduce memory usage
The per-osc request pools consume a lot of memory if there are
hundreds of OSCs on one client. This will be a critical problem
if the client doesn't have sufficient memory for both OSCs and
applications.
This patch replaces per-osc request pools with a global pool
osc_rq_pool. The total memory usage is 5MB by default. And it
can be set by a module parameter of OSC:
"options osc osc_reqpool_mem_max=POOL_SIZE". The unit of POOL_SIZE
is MB. If cl_max_rpcs_in_flight is the same for all OSCs, the
memory usage of the OSC pool can be calculated as:
Min(POOL_SIZE * 1M,
(cl_max_rpcs_in_flight + 2) * OSC number * OST_MAXREQSIZE)
Also, this patch changes the allocation logic of OSC write requests.
The allocation from osc_rq_pool will only be tried after normal
allocation failed.
Signed-off-by: Wu Libin <lwu@ddn.com> Signed-off-by: Wang Shilong <wshilong@ddn.com> Signed-off-by: Li Xi <lixi@ddn.com>
Reviewed-on: http://review.whamcloud.com/15422
Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-6770 Reviewed-by: Jinshan Xiong <jinshan.xiong@intel.com> Reviewed-by: Andreas Dilger <andreas.dilger@intel.com> Signed-off-by: Oleg Drokin <oleg.drokin@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Ann Koehler [Mon, 14 Sep 2015 22:41:30 +0000 (18:41 -0400)]
staging/lustre/obdclass: Eliminate hash bucket scans in lu_cache_shrink
The lu_cache_shrink slab shrinker is too slow, accounting for > 90% of
the time spent in shrink_slab when allocating huge pages. Most of its
time is spent iterating over the buckets in each site's object hash
table to compute the number of freeable objects. This iteration is
eliminated by adding an lru length count to the lu_site struct. A
percpu counter is used to maintain the lru length, so that the
lu_site does not need to be locked when an object is accessed through
the hash table. A counter is updated whenever an object is added to
or deleted from any of the hash table buckets. The number of freeable
objects is the sum of the counter values across all cpus.
Signed-off-by: Ann Koehler <amk@cray.com>
Reviewed-on: http://review.whamcloud.com/14066
Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-6365 Reviewed-by: Mike Pershin <mike.pershin@intel.com> Reviewed-by: Andreas Dilger <andreas.dilger@intel.com> Reviewed-by: Alex Zhuravlev <alexey.zhuravlev@intel.com> Signed-off-by: Oleg Drokin <oleg.drokin@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
ll_iget_for_nfs() can call unbalanced iput() causing memory
leaks. This patch removes this iput() call.
Also, avoid unhashing disconnected dentries in
d_lustre_invalidate(), which is another source of memory
leaks.
One of the symptoms of the leak is the following crash pattern:
LustreError: 14812:0:(lu_object.c:1251:lu_device_fini())
ASSERTION( atomic_read(&d->ld_ref) == 0 ) failed: Refcount is 1
LustreError: 14812:0:(lu_object.c:1251:lu_device_fini()) LBUG
Pid: 14812, comm: umount
projects / karo-tx-linux.git / log