- 07 Nov, 2016 40 commits
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Jinshan Xiong authored
Otherwise, if the race between page fault and truncate occurs, it will cause the page fault routine to return an EIO error. In filemap_fault() { page_not_uptodate: ... ClearPageError(page); error = mapping->a_ops->readpage(file, page); if (!error) { wait_on_page_locked(page); if (!PageUptodate(page)) error = -EIO; } ... } However, I tend to think this is a defect in kernel implementation, because it assumes PageUptodate shouldn't be cleared but file read routine doesn't make the same assumption. Signed-off-by:Jinshan Xiong <jinshan.xiong@intel.com> Reviewed-on: http://review.whamcloud.com/22827 Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-8633Reviewed-by:
Li Dongyang <dongyang.li@anu.edu.au> Reviewed-by:
Bobi Jam <bobijam@hotmail.com> Signed-off-by:
Oleg Drokin <green@linuxhacker.ru> Reviewed-by:
James Simmons <jsimmons@infradead.org> Signed-off-by:
Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Bobi Jam authored
When stride-RA hit case miss, we only reset normal sequential read-ahead window, but not reset the stride IO to avoid the overhead of re-detecting stride IO. While when the normal RA window is set to not insect with the stride-RA window, when we try to increase the stride-RA window length later, the presumption does not hold. This patch resets the stride IO as well in this case. Signed-off-by:
Bobi Jam <bobijam.xu@intel.com> Reviewed-on: http://review.whamcloud.com/23032 Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-8683Reviewed-by:
wangdi <di.wang@intel.com> Reviewed-by:
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Amir Shehata authored
cpu_pattern can specify exactly 1 cpu in a partition: "0[0]". That means CPT0 will have CPU 0. CPU 0 can have hyperthreading enabled. This combination would result in weight = cfs_cpu_ht_nsiblings(0); hrp->hrp_nthrs = cfs_cpt_weight(ptlrpc_hr.hr_cpt_table, i); hrp->hrp_nthrs /= weight; evaluating to 0. Where cfs_cpt_weight(ptlrpc_hr.hr_cpt_table, i) == 1 weight == 2 Therefore, if hrp_nthrs becomes zero, just set it to 1. Signed-off-by:
Amir Shehata <amir.shehata@intel.com> Reviewed-on: http://review.whamcloud.com/19106 Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-8492Reviewed-by:
Liang Zhen <liang.zhen@intel.com> Reviewed-by:
Doug Oucharek <doug.s.oucharek@intel.com> Reviewed-by:
James Simmons <uja.ornl@yahoo.com> Signed-off-by:
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Bobi Jam authored
Need to check file's lli_clob object before calling lov_read_and_clear_async_rc(). Signed-off-by:
Oleg Drokin <oleg.drokin@intel.com> Reviewed-on: http://review.whamcloud.com/23031 Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-8682Signed-off-by:
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Patrick Farrell authored
-EAGAIN is a normal return when requesting POSIX flocks. We can't recognize exactly that case here, but it's the only case that should result in -EAGAIN on LDLM_ENQUEUE, so don't print to console in that case. Signed-off-by:
Patrick Farrell <paf@cray.com> Reviewed-on: http://review.whamcloud.com/22856 Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-8658Reviewed-by:
Andreas Dilger <andreas.dilger@intel.com> Reviewed-by:
Bob Glossman <bob.glossman@intel.com> Signed-off-by:
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Hongchao Zhang authored
If there is no request passed into ldlm_cli_enqueue, the enqueue request will not engage ELC to drop unneeded locks. currently, this kind of request is mainly related to EXTENT locks enqueue requests (except for glimpse EXTENT lock for it has an intent). Signed-off-by:
Hongchao Zhang <hongchao.zhang@intel.com> Reviewed-on: http://review.whamcloud.com/21739 Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-8209Reviewed-by:
Vitaly Fertman <vitaly.fertman@seagate.com> Signed-off-by:
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Oleg Drokin authored
The function becomes used again with the next patch, so bring it back from dead, only this time make it static. Reverts: bf2a0333 ("staging/lustre/ldlm: Remove unused ldlm_enqueue_pack()") Signed-off-by:
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Andrew Perepechko authored
This patch releases cl_pages on error in ll_write_begin() to avoid memory and object reference leaks. Also, it reuses per-cpu lu_env in ll_invalidatepage() in the same way as done in ll_releasepage(). Signed-off-by:
Andrew Perepechko <andrew.perepechko@seagate.com> Seagate-bug-id: MRP-3504 Reviewed-on: http://review.whamcloud.com/22745 Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-8509Reviewed-by:
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Jinshan Xiong authored
cl_env hash table is under heavy contention when there are lots of processes doing IO at the same time; reduce lock contention by replacing cl_env cache with percpu array; remove cl_env_nested_get() and cl_env_nested_put(); remove cl_env_reenter() and cl_env_reexit(); Signed-off-by:
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Niu Yawei authored
Otherwise, those leftovers would interfere with new timestamps especially when the timestamps are set back in time on the other clients. Signed-off-by:
Niu Yawei <yawei.niu@intel.com> Reviewed-on: http://review.whamcloud.com/22623 Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-8446Reviewed-by:
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Andriy Skulysh authored
PW lock isn't replayed once a lock is marked LDLM_FL_CANCELING and glimpse lock doesn't wait for conflicting locks on the client. So the server will grant a PR lock in response to the glimpse lock request, which conflicts with the PW lock in LDLM_FL_CANCELING state on the client. Lock in LDLM_FL_CANCELING state may still have pending IO, so it should be replayed until LDLM_FL_BL_DONE is set to avoid granted conflicting lock by a server. Seagate-bug-id: MRP-3311 Signed-off-by:
Andriy Skulysh <andriy.skulysh@seagate.com> Reviewed-on: http://review.whamcloud.com/20345 Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-8175Reviewed-by:
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Hongchao Zhang authored
1, in client_import_del_conn, the export returned from class_conn2export is not released after using it. 2, in ptlrpc_connect_interpret, the export is not released if the connect_flags isn't compatible. Signed-off-by:
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Oleg Drokin authored
blocking_refs is only used on the server, so drop it on the client. Signed-off-by:
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Sergio Paracuellos authored
Blank lines aren't necessary after an open brace '{'. Clean them in p80211req.c source file to comply with the standard kernel coding style. Signed-off-by:Sergio Paracuellos <sergio.paracuellos@gmail.com> Signed-off-by:
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Sergio Paracuellos authored
Avoid no necessary parentheses to comply with the standard kernel coding style. Signed-off-by:
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Sergio Paracuellos authored
Comparison to NULL could be written in preferred form. Change it to comply with the standard kernel coding style. Signed-off-by:
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Sergio Paracuellos authored
After open brace or before close brace blank lines are not really necessary. Remove them. Signed-off-by:
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Sergio Paracuellos authored
Add spaces around or operator to comply with the standard kernel coding style. Signed-off-by:
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Maninder Singh authored
This patch fixes the following checkpatch.pl error: ERROR: Macros with complex values should be enclosed in parentheses Signed-off-by:
Maninder Singh <maninder.s2@samsung.com> Acked-by:
Benjamin Gaignard <benjamin.gaignard@linaro.org> Signed-off-by:
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Nick Rosbrook authored
Running checkpath on card.c shows two locations where multiple assignments are used. This patch modifies the assignments into single assignments. Signed-off-by:
Nick Rosbrook <nrosbrook@mail.smcvt.edu> Signed-off-by:
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Elise Lennion authored
dev_*() functions print identifying information about the struct device and should be used instead of pr_*() whenever possible. Signed-off-by:
Elise Lennion <elise.lennion@gmail.com> Signed-off-by:
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Nadim Almas authored
This patch compresses two lines into a single line if immediate return statement is found. Remove variable data as it is no longer needed. It is done using script Coccinelle. And coccinelle uses the following semantic patch for this compression function @@ local idexpression ret; expression e; @@ -ret = +return e; -return ret; Signed-off-by:Nadim Almas <nadim.902@gmail.com> Signed-off-by:
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Souptick Joarder authored
There are few functions where we need to free previously allocated memory when kmalloc fails. Else it may lead to memory leakage. In _init_cmd_priv() and _r8712_init_xmit_priv(), in few places we are not freeing previously allocated memory when kmalloc fails. Signed-off-by:
Souptick joarder <jrdr.linux@gmail.com> Signed-off-by:
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Wei Yongjun authored
Remove including <linux/version.h> that don't need it. Signed-off-by:
Wei Yongjun <weiyongjun1@huawei.com> Signed-off-by:
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Ted Chen authored
Fix the following warnings by initializing these variables to zero and add error check to return early when the check returns an error. drivers/staging/comedi/drivers/ni_tio.c: In function ‘ni_tio_set_sync_mode’: drivers/staging/comedi/drivers/ni_tio.c:492:28: warning: ‘ps’ may be used uninitialized in this function [-Wuninitialized] drivers/staging/comedi/drivers/ni_tio.c: In function ‘ni_tio_insn_config’: drivers/staging/comedi/drivers/ni_tio.c:820:2: warning: ‘temp64’ may be used uninitialized in this function [-Wuninitialized] drivers/staging/comedi/drivers/ni_tio.c:811:6: note: ‘temp64’ was declared her Signed-off-by:
Ted Chen <tedc.37zngo@gmail.com> Reviewed-by:
Ian Abbott <abbotti@mev.co.uk> Signed-off-by:
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Greg Kroah-Hartman authored
Some more printk warnings snuck in recently, no one seems to be building this on 64bit machines... Cc: Stephen Warren <swarren@wwwdotorg.org> Cc: Lee Jones <lee@kernel.org> Cc: Eric Anholt <eric@anholt.net> Cc: Michael Zoran <mzoran@crowfest.net> Cc: Stefan Wahren <stefan.wahren@i2se.com> Signed-off-by: -
Stefan Wahren authored
The current order during module probe is prone to race conditions: * debugfs entries, sysfs entries, platform code So fix this by swapping the steps debugfs entries and platform code. As a benefit this saves us a clean up step in the error path. Signed-off-by:
Stefan Wahren <stefan.wahren@i2se.com> Signed-off-by:
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Stefan Wahren authored
This removes the debugfs entries on module unload and fix one of the many kernel oops after loading the module again. Signed-off-by:
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Stefan Wahren authored
It's possible that get_user_pages() could fail. So evaluate its return code and handle this error case properly. This issue has been found by Cppcheck. Signed-off-by:
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Stefan Wahren authored
We better use sizeof instead of hardcoding buffer length multiple times. This make it easier to increase the buffer in the future. In order to keep below 80 chars limit make the variable name shorter. Signed-off-by:
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Stefan Wahren authored
After device_node usage the refcount must be decremented with of_node_put(). Signed-off-by:
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Stefan Wahren authored
The member localport and remoteport are unsigned. So fix the format string accordingly. The issue has been found by Cppcheck. Signed-off-by:
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Stefan Wahren authored
The service state is dereferenced before BUG_ON and outside of the spin lock. So in order to avoid possible NULL pointer dereferences or races move the whole scope at a safer place. This issue has been found by Cppcheck. Signed-off-by:
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Michael Zoran authored
vc04_services contains a debug logging mechanism. The log is maintained in a shared memory area between the kernel and the firmware. Changing the sizes of the data in this area would require a firmware change which is distributed independently from the kernel binary. One of the items logged is the address of received messages. This address is a pointer, but the debugging slot used to store the information is a 32 bit integer. Luckily, this value is never interpreted by anything other then debug tools and it is expected that a human debugging the kernel interpret it. This change adds a cast to long before the original cast to int to silence the warning. Signed-off-by:
Michael Zoran <mzoran@crowfest.net> Reviewed-by:
Eric Anholt <eric@anholt.net> Signed-off-by:
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Michael Zoran authored
The vchiq_copy_from_user function is not portable and is consider "bad practice." Replace this function with a callback based mechanism that is passed downward on the stack. When it is actually time to copy the data, the callback is called to copy the data into the message. This callback is provided internally for userland calls through ioctls on the device. NOTE: Internal clients will need to be modified to work with the new internal API. Test Run: vchiq_test -p 1 vchiq_test -f 10 Both tests pass. Internal API Changes: Change vchi_msg_queue to: int32_t vchi_msg_queue(VCHI_SERVICE_HANDLE_T handle, ssize_t (*copy_callback)(void *context, void *dest, size_t offset, size_t maxsize), void *context, uint32_t data_size ); Remove: vchi_msg_queuev_ex vchi_msg_queuev These functions were not implemented anyway so no need to fix them. It's easier to just remove them. Signed-off-by:
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Michael Zoran authored
VCHI messages between the CPU and firmware use 32-bit bus addresses. Explicitly set the DMA mask and coherent on all platforms. Signed-off-by:
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Michael Zoran authored
Call the sg_init_table function to correctly initialze the DMA scatterlist. This function is required to completely initialize the list and is mandatory if DMA debugging is enabled in the build configuration. One of the purposes of sg_init_table is to set the magic "cookie" on each list element and ensure the chain end is marked. Signed-off-by:
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Anton Leshchenko authored
Align broken line for code readability. Signed-off-by:
Anton Leshchenko <antonl1911@gmail.com> Signed-off-by:
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Anton Leshchenko authored
Add identifier names for function definition arguments. Signed-off-by:
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Anton Leshchenko authored
Instead of using shift operation use BIT macro for bit field definitions. Signed-off-by:
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