The cfs_duration_usec() function has a timeval as its output, which we
want to avoid in general because of the y2038 problem.
There are only two locations remaining in lustre, so we can for now
replace one with jiffies_to_timeval(), which is a generic kernel function
that does the same thing, the other can just use jiffies_to_usecs()
and completely avoid the timeval.
This is not a full solution yet, but it's a small step that lets us
build a larger portion of lustre without this reference to timeval in
a header file, and avoid triggering automated checking tools that wants
to warn about timeval.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Oleg Drokin <green@linuxhacker.ru>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The cfs_duration_sec() converts a relative jiffies value into seconds,
and returns that number as a time_t. We know that a 32-bit type is
enough here, because the result is order of magnitudes smaller than
the difference in jiffies that is also expressed as a 'long', so
we can safely replace the time_t type with long as well.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Oleg Drokin <green@linuxhacker.ru>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This ioctl function passes a 64-bit time argument but then performs
a computation with a 32-bit get_seconds() value.
In order to avoid overflow here, this changes the code to use
64-bit math and ktime_get_real_seconds().
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Oleg Drokin <green@linuxhacker.ru>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The lnet_eq_wait_locked tries to wait for time to pass or an event to
wake up the wait queue. The entire logic seems to be a very elaborate
reimplementation of wait_event().
I'm not trying to clean up the entire logic here, but this at least
gets rid of the multi-way conversion between miliseconds, timeval
and jiffies.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Oleg Drokin <green@linuxhacker.ru>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The rq_at_index member of ptlrpc_request is incorrectly declared as
time_t, when it is only used as an index into an array, and assigned
from a __u32 variable.
This changes the type to u32, so we can kill off another use of time_t.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Oleg Drokin <green@linuxhacker.ru>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
process_param2_config() tries to print how much time has passed
across a call_usermodehelper() function, and uses struct timeval
for that.
We want to remove this structure, so this is better expressed
in terms of ktime_t and ktime_us_delta().
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Oleg Drokin <green@linuxhacker.ru>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The l_last_activity struct member is used to keep track lock hold
times, and it is printed for debugging purposes. For the elapsed
time, we can use 'long' here, but it's better to use time64_t
for storing the real time to avoid an overflow in 2038.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Oleg Drokin <green@linuxhacker.ru>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Some lustre debugfs files contain the current time. Make sure
we use a format here that does not overflow in 2038.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Oleg Drokin <green@linuxhacker.ru>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The lustre tracefile has a timestamp defined as
__u32 ph_sec;
__u64 ph_usec;
which seems completely backwards, as the microsecond portion of
a time stamp will always fit into a __u32 value, while the second
portion will overflow in 2038 or 2106 (in case of unsigned seconds).
Changing this would unfortunately change the format in an incompatible
way, breaking all existing user space tools that access the data.
This uses ktime_get_real_ts64() to replace the insufficient
do_gettimeofday() and then truncates the seconds portion to
an u32 type, along with comments to explain the result.
A possible alternative would be the use of ktime_get_ts64() to
read a monotonic timestamp that never overflows, but this would
trigger a check in user space 'hdr->ph_sec < (1 << 30)' that
attempts to ensure that the values are within a reasonable range.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Oleg Drokin <green@linuxhacker.ru>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
We want to get rid of all uses of time_t, and it turns out
that obd.h contains a bunch of them that are completely unused.
This removes those structures, along with a couple of other
structures and functions in the same file that also turned
out to be unused.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Oleg Drokin <green@linuxhacker.ru>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Lustre has 64-bit timestamps in its network data structures, but
on 32 bit systems, it converts them directly into time_t, which is
32 bit wide.
This changes the code to use 64-bit time stamps for files. The Linux
VFS code still uses time_t though, and will be changed in a separate
patch series.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Oleg Drokin <green@linuxhacker.ru>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The recently introduced lnet_peer_set_alive() function uses
get_seconds() to read the current time into a shared variable,
but all other uses of that variable compare it to jiffies values.
This changes the current use to jiffies as well for consistency.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Fixes: af3fa7c71b ("staging/lustre/lnet: peer aliveness status and NI status")
Cc: Liang Zhen <liang.zhen@intel.com>
Cc: James Simmons <uja.ornl@gmail.com>
Cc: Isaac Huang <he.huang@intel.com>
Signed-off-by: Oleg Drokin <oleg.drokin@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Include the header with declarations of variables that are shared between
several sources in ptlrpc module into the appropriate source files.
Signed-off-by: Anton Gerasimov <anton.gerasimov@openmailbox.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This patch moves declarations of variables used in several files
across the ptlrpc module from source files to a local header.
Signed-off-by: Anton Gerasimov <anton.gerasimov@openmailbox.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The function can return negative value.
The problem has been detected using proposed semantic patch
scripts/coccinelle/tests/unsigned_lesser_than_zero.cocci [1].
[1]: http://permalink.gmane.org/gmane.linux.kernel/2038576
Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Unsigned cannot be negative.
The problem has been detected using proposed semantic patch
scripts/coccinelle/tests/unsigned_lesser_than_zero.cocci [1].
[1]: http://permalink.gmane.org/gmane.linux.kernel/2038576
Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
STAGING_RDMA was failing to build when INFINIBAND was set to 'm' and
STAGING_RDMA was set to 'y'.
Making this a tristate properly inherits the 'm' from the INFINIBAND setting.
Reviewed-by: Dalessandro, Dennis <dennis.dalessandro@intel.com>
Reviewed-by: John, Jubin <jubin.john@intel.com>
Reviewed-by: Mike Marciniszyn <mike.marciniszyn@intel.com>
Signed-off-by: Ira Weiny <ira.weiny@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Fixed warnings found by checkpatch.pl:
Please use a blank line after function/struct/union/enum declarations
FILE: drivers/staging/rdma/amso1100/c2_mq.c:158:
FILE: drivers/staging/rdma/hfi1/file_ops.c:2069:
FILE: drivers/staging/rdma/hfi1/sdma.c:744:
FILE: drivers/staging/rdma/hfi1/verbs.c:1202:
Signed-off-by: Geliang Tang <geliangtang@163.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Fixes the following sparse warning:
drivers/staging/rdma/hfi1/device.c:127:12:
warning: symbol 'class_name_user' was not declared. Should it be static?
Signed-off-by: Geliang Tang <geliangtang@163.com>
Acked-by: Mike Marciniszyn <mike.marciniszyn@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Use kvfree() instead of open-coding it.
Signed-off-by: Geliang Tang <geliangtang@163.com>
Acked-by: Mike Marciniszyn <mike.marciniszyn@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
hfi1_rc_hdrerr() stores the result of be32_to_cpu() into opcode, which
is a local variable declared as u8. Later this variable is used in a
24-bit logical right shift, which makes clang complains (when building
an allmodconfig kernel with LLVMLinux patches):
drivers/staging/rdma/hfi1/rc.c:2399:9: warning: shift count >= width
of type [-Wshift-count-overflow]
opcode >>= 24;
^ ~~
All of this lead to the point that opcode may have been designed to be
a 32-bit integer instead of an 8-bit one. Therefore make this variable
u32.
Signed-off-by: Nicolas Iooss <nicolas.iooss_linux@m4x.org>
Acked-by: Mike Marciniszyn <mike.marciniszyn@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Use naming schema found in other rtlwifi devices.
Rename dm_ctrl_initgain_byrssi to _rtl92e_dm_ctrl_initgain_byrssi.
Signed-off-by: Mateusz Kulikowski <mateusz.kulikowski@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Use naming schema found in other rtlwifi devices.
Rename firmware_check_ready to _rtl92e_fw_check_ready.
Signed-off-by: Mateusz Kulikowski <mateusz.kulikowski@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Use naming schema found in other rtlwifi devices.
Rename r8192_wx_set_enc to _rtl92e_wx_set_enc.
Signed-off-by: Mateusz Kulikowski <mateusz.kulikowski@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Use naming schema found in other rtlwifi devices.
Rename dm_tx_update_tssi_weak_signal to
_rtl92e_dm_tx_update_tssi_weak_signal.
Signed-off-by: Mateusz Kulikowski <mateusz.kulikowski@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Use naming schema found in other rtlwifi devices.
Rename dm_tx_update_tssi_strong_signal to
_rtl92e_dm_tx_update_tssi_strong_signal.
Signed-off-by: Mateusz Kulikowski <mateusz.kulikowski@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Use naming schema found in other rtlwifi devices.
Rename dm_TXPowerTrackingCallback_TSSI to
_rtl92e_dm_tx_power_tracking_callback_tssi.
Signed-off-by: Mateusz Kulikowski <mateusz.kulikowski@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Use naming schema found in other rtlwifi devices.
Rename dm_TXPowerTrackingCallback_ThermalMeter to
_rtl92e_dm_tx_power_tracking_cb_thermal.
Signed-off-by: Mateusz Kulikowski <mateusz.kulikowski@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Use naming schema found in other rtlwifi devices.
Rename dm_txpower_reset_recovery to _rtl92e_dm_tx_power_reset_recovery.
Signed-off-by: Mateusz Kulikowski <mateusz.kulikowski@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Use naming schema found in other rtlwifi devices.
Rename dm_StartSWFsync to _rtl92e_dm_start_sw_fsync.
Signed-off-by: Mateusz Kulikowski <mateusz.kulikowski@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Use naming schema found in other rtlwifi devices.
Rename dm_StartHWFsync to _rtl92e_dm_start_hw_fsync.
Signed-off-by: Mateusz Kulikowski <mateusz.kulikowski@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Use naming schema found in other rtlwifi devices.
Rename dm_send_rssi_tofw to _rtl92e_dm_send_rssi_to_fw.
Signed-off-by: Mateusz Kulikowski <mateusz.kulikowski@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Use naming schema found in other rtlwifi devices.
Rename dm_rxpath_sel_byrssi to _rtl92e_dm_rx_path_sel_byrssi.
Signed-off-by: Mateusz Kulikowski <mateusz.kulikowski@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Use naming schema found in other rtlwifi devices.
Rename dm_pd_th to _rtl92e_dm_pd_th.
Signed-off-by: Mateusz Kulikowski <mateusz.kulikowski@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Use naming schema found in other rtlwifi devices.
Rename dm_Init_WA_Broadcom_IOT to _rtl92e_dm_init_wa_broadcom_iot.
Signed-off-by: Mateusz Kulikowski <mateusz.kulikowski@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Use naming schema found in other rtlwifi devices.
Rename dm_InitializeTXPowerTracking_TSSI to
_rtl92e_dm_initialize_tx_power_tracking_tssi.
Signed-off-by: Mateusz Kulikowski <mateusz.kulikowski@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Use naming schema found in other rtlwifi devices.
Rename dm_init_rxpath_selectio to _rtl92e_dm_init_rx_path_selection.
Signed-off-by: Mateusz Kulikowski <mateusz.kulikowski@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Use naming schema found in other rtlwifi devices.
Rename dm_InitializeTXPowerTracking_ThermalMeter to
_rtl92e_dm_init_tx_power_tracking_thermal.
Signed-off-by: Mateusz Kulikowski <mateusz.kulikowski@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Use naming schema found in other rtlwifi devices.
Rename dm_initial_gain to _rtl92e_dm_initial_gain.
Signed-off-by: Mateusz Kulikowski <mateusz.kulikowski@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Use naming schema found in other rtlwifi devices.
Rename dm_init_fsync to _rtl92e_dm_init_fsync.
Signed-off-by: Mateusz Kulikowski <mateusz.kulikowski@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Use naming schema found in other rtlwifi devices.
Rename dm_init_dynamic_txpower to _rtl92e_dm_init_dynamic_tx_power.
Signed-off-by: Mateusz Kulikowski <mateusz.kulikowski@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Use naming schema found in other rtlwifi devices.
Rename dm_init_ctstoself to _rtl92e_dm_init_cts_to_self.
Signed-off-by: Mateusz Kulikowski <mateusz.kulikowski@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Use naming schema found in other rtlwifi devices.
Rename dm_init_bandwidth_autoswitch to
_rtl92e_dm_init_bandwidth_autoswitch.
Signed-off-by: Mateusz Kulikowski <mateusz.kulikowski@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Use naming schema found in other rtlwifi devices.
Rename dm_fsync_timer_callback to _rtl92e_dm_fsync_timer_callback.
Signed-off-by: Mateusz Kulikowski <mateusz.kulikowski@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Use naming schema found in other rtlwifi devices.
Rename dm_EndSWFsync to _rtl92e_dm_end_sw_fsync.
Signed-off-by: Mateusz Kulikowski <mateusz.kulikowski@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Use naming schema found in other rtlwifi devices.
Rename dm_EndHWFsync to _rtl92e_dm_end_hw_fsync.
Signed-off-by: Mateusz Kulikowski <mateusz.kulikowski@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Use naming schema found in other rtlwifi devices.
Rename dm_dynamic_txpower to _rtl92e_dm_dynamic_tx_power.
Signed-off-by: Mateusz Kulikowski <mateusz.kulikowski@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
