From: Johannes Berg
Use just a single vmalloc() with struct_size() instead of
a separate kmalloc() for the iter struct.
Signed-off-by: Johannes Berg
---
kernel/gcov/fs.c | 24 +---
1 file changed, 9 insertions(+), 15 deletions(-)
diff --git a/kernel/gcov/fs.c
From: Johannes Berg
Using vmalloc() in gcov is really quite wasteful, many of the
objects allocated are really small (e.g. I've seen 24 bytes.)
Use kvmalloc() to automatically pick the better of kmalloc()
or vmalloc() depending on the size.
Signed-off-by: Johannes Berg
---
kernel/gcov/clang.c
From: Johannes Berg
There's a lot of duplicated code between gcc and clang
implementations, move it over to fs.c to simplify the
code, there's no reason to believe that for small data
like this one would not just implement the simple
convert_to_gcda() function.
Signed-off-by: Johannes Berg
---
On Thu, Mar 11, 2021 at 03:07:25PM +0800, Jin Yao wrote:
SNIP
> + config_terms, pmu);
> + if (ret)
> + return ret;
> + }
> +
> + return 0;
> +}
> +
> int parse_events_add_cache(struct list_head *list, int *idx,
On Fri, Mar 12, 2021 at 01:26:47PM +0100, Frederic Weisbecker wrote:
> On Wed, Mar 03, 2021 at 04:26:30PM -0800, paul...@kernel.org wrote:
> > /**
> > + * start_poll_state_synchronize_rcu - Snapshot and start RCU grace period
> > + *
> > + * Returns a cookie that is used by a later call to
On 21-03-15 07:59:25, Pawel Laszczak wrote:
> From: Pawel Laszczak
>
> Command Verifier during UVC Descriptor Tests (Class Video Control
> Interface Descriptor Test Video) complains about:
>
> Video Control Interface Header bcdUVC is 0x0100. USB Video Class
> specification 1.0 has been replaced
On 2021/3/16 2:53, Jakub Kicinski wrote:
> On Mon, 15 Mar 2021 11:10:18 +0800 Yunsheng Lin wrote:
>> @@ -606,6 +623,11 @@ static const u8 prio2band[TC_PRIO_MAX + 1] = {
>> */
>> struct pfifo_fast_priv {
>> struct skb_array q[PFIFO_FAST_BANDS];
>> +
>> +/* protect against data race
On 15 Mar 2021, at 20:36, kernel test robot wrote:
> Hi Zi,
>
> Thank you for the patch! Perhaps something to improve:
>
> [auto build test WARNING on kselftest/next]
> [also build test WARNING on linux/master linus/master v5.12-rc3]
> [cannot apply to hnaz-linux-mm
On 2021/3/5 17:58, Huang Jianan via Linux-erofs wrote:
Currently, err would be treated as io error. Therefore, it'd be
better to ensure memory allocation during rolling decompression
to avoid such io error.
In the long term, we might consider adding another !Uptodate case
for such case.
Hi Jiri,
On 3/16/2021 1:37 AM, Jiri Olsa wrote:
On Mon, Mar 15, 2021 at 10:28:12AM +0800, Jin, Yao wrote:
Hi Jiri,
On 3/13/2021 3:15 AM, Jiri Olsa wrote:
On Thu, Mar 11, 2021 at 03:07:26PM +0800, Jin Yao wrote:
On hybrid platform, some hardware events are only available
on a specific pmu.
BITMAP_{LAST,FIRST}_WORD_MASK() in linux/bitmap.h duplicates the
functionality of GENMASK(). The scope of BITMAP* macros is wider
than just bitmaps. This patch defines 4 new macros: BITS_FIRST(),
BITS_LAST(), BITS_FIRST_MASK() and BITS_LAST_MASK() in linux/bits.h
on top of GENMASK() and replaces
GENMASK(h, l) may be passed with unsigned types. In such case, type-limits
warning is generated for example in case of GENMASK(h, 0).
Signed-off-by: Yury Norov
---
tools/scripts/Makefile.include | 1 +
1 file changed, 1 insertion(+)
diff --git a/tools/scripts/Makefile.include
lib/find_bit.c declares five single-line wrappers for _find_next_bit().
We may turn those wrappers to inline functions. It eliminates unneeded
function calls and opens room for compile-time optimizations.
Signed-off-by: Yury Norov
---
include/asm-generic/bitops/find.h | 28
Remove BITMAP_{FIRST,LAST}_WORD_MASK and introduce
BITS_{FIRST,LAST}{,_MASK} as per kernel implementation.
Signed-off-by: Yury Norov
---
tools/include/linux/bitmap.h | 20 ++--
tools/include/linux/bits.h| 6 ++
tools/lib/bitmap.c| 6 +++---
Similarly to bitmap functions, find_next_*_bit() users will benefit
if we'll handle a case of bitmaps that fit into a single word inline.
In the very best case, the compiler may replace a function call with
a few instructions.
This is the quite typical find_next_bit() user:
unsigned int
Add fast paths to find_*_bit() functions as per kernel implementation.
Signed-off-by: Yury Norov
---
tools/include/asm-generic/bitops/find.h | 58 +++--
tools/lib/find_bit.c| 4 +-
2 files changed, 57 insertions(+), 5 deletions(-)
diff --git
Some functions in tools/include/linux/bitmap.h declare nbits as int. In the
kernel nbits is declared as unsigned int.
Signed-off-by: Yury Norov
---
tools/include/linux/bitmap.h | 8
tools/lib/bitmap.c | 4 ++--
2 files changed, 6 insertions(+), 6 deletions(-)
diff --git
Sorry for the noise, Andrew gave me feedbacks, and pointed two bugs in
last patch.
1. asid should be thread safe, which is not the intent.
2. asid extracting logic was wrong.
This patch fixes these bugs.
Signed-off-by: Jiuyang Liu
---
arch/riscv/include/asm/tlbflush.h | 8 ++--
1 file
Move the macro from tools/include/asm-generic/bitsperlong.h
to tools/include/linux/bitmap.h
Signed-off-by: Yury Norov
---
tools/include/asm-generic/bitsperlong.h | 3 +++
tools/include/linux/bitmap.h| 3 ---
2 files changed, 3 insertions(+), 3 deletions(-)
diff --git
Similarly to bitmap functions, users would benefit if we'll handle
a case of small-size bitmaps that fit into a single word.
While here, move the find_last_bit() declaration to bitops/find.h
where other find_*_bit() functions sit.
Signed-off-by: Yury Norov
---
include/asm-generic/bitops/find.h
Add myself as maintainer for bitmap API and Andy and Rasmus as reviewers.
I'm an author of current implementation of lib/find_bit and an active
contributor to lib/bitmap. It was spotted that there's no maintainer for
bitmap API. I'm willing to maintain it.
Signed-off-by: Yury Norov
Acked-by:
m68k and sh include bitmap/{find,le}.h prior to ffs/fls headers. New
fast-path implementation in find.h requires ffs/fls. Reordering the
headers inclusion sequence helps to prevent compile-time implicit
function declaration error.
Signed-off-by: Yury Norov
Acked-by: Geert Uytterhoeven
---
Sync the implementation with recent kernel changes.
Signed-off-by: Yury Norov
---
tools/include/asm-generic/bitops/find.h | 27 ++---
tools/lib/find_bit.c| 52 ++---
2 files changed, 42 insertions(+), 37 deletions(-)
diff --git
On 3/15/21 2:15 PM, Hongren Zheng (Zenithal) wrote:
>
> Co-developed-by: Alexandre Demers
> Co-developed-by: Randy Dunlap
No, I'm not in the Co-developed-by loop here.
And then you can add:
Reviewed-by: Randy Dunlap
> Signed-off-by: Hongren Zheng
> ---
>
Bitmap operations are much simpler and faster in case of small bitmaps
which fit into a single word. In linux/bitmap.c we have a machinery that
allows compiler to replace actual function call with a few instructions
if bitmaps passed into the function are small and their size is known at
compile
find_bit would also benefit from small_const_nbits() optimizations.
Signed-off-by: Yury Norov
---
include/asm-generic/bitsperlong.h | 9 +
include/linux/bitmap.h| 3 ---
2 files changed, 9 insertions(+), 3 deletions(-)
diff --git a/include/asm-generic/bitsperlong.h
On 2021/3/15 15:52, Arnd Bergmann wrote:
On Mon, Mar 15, 2021 at 6:54 AM Jie Deng wrote:
On 2021/3/15 11:13, Jason Wang wrote:
On 2021/3/15 9:14 δΈε, Jie Deng wrote:
On 2021/3/12 16:58, Arnd Bergmann wrote:
Then do you think it is necessary to mark the virtio bufs with
On 3/15/21 3:46 AM, Srinivas Neeli wrote:
> From: Srinivas Goud
>
> Used BIT macro instead of mask value.
>
> Signed-off-by: Srinivas Goud
> Signed-off-by: Michal Simek
> Signed-off-by: Srinivas Neeli
> ---
> drivers/watchdog/of_xilinx_wdt.c | 8
> 1 file changed, 4 insertions(+),
On 3/15/21 3:46 AM, Srinivas Neeli wrote:
> From: Srinivas Goud
>
> This patch removes pr_info in stop function and adds dev_dbg()
> in start/stop function to display device specific debug info.
>
> Signed-off-by: Srinivas Goud
> Signed-off-by: Michal Simek
> Signed-off-by: Srinivas Neeli
>
reMarkable AS produces eInk tablets
Signed-off-by: Alistair Francis
---
Documentation/devicetree/bindings/vendor-prefixes.yaml | 2 ++
1 file changed, 2 insertions(+)
diff --git a/Documentation/devicetree/bindings/vendor-prefixes.yaml
b/Documentation/devicetree/bindings/vendor-prefixes.yaml
Signed-off-by: Alistair Francis
---
Documentation/devicetree/bindings/arm/fsl.yaml | 1 +
1 file changed, 1 insertion(+)
diff --git a/Documentation/devicetree/bindings/arm/fsl.yaml
b/Documentation/devicetree/bindings/arm/fsl.yaml
index 297c87f45db8..d139440c86b6 100644
---
The reMarkable2 (https://remarkable.com) is an e-ink tablet based on
the imx7d SoC.
This commit is based on the DTS provide by reMarkable but ported to the
latest kernel (instead of 4.14). I have removed references to
non-upstream devices and have changed the UART so that the console can
be
The BPA-RS600 is a compact 600W AC to DC removable power supply module.
Signed-off-by: Chris Packham
---
Documentation/hwmon/bpa-rs600.rst | 74
drivers/hwmon/pmbus/Kconfig | 10 ++
drivers/hwmon/pmbus/Makefile | 1 +
drivers/hwmon/pmbus/bpa-rs600.c | 179
Add vendor prefix "blutek" for BluTek Power.
Add trivial device entry for BPA-RS600.
Signed-off-by: Chris Packham
---
Documentation/devicetree/bindings/trivial-devices.yaml | 2 ++
Documentation/devicetree/bindings/vendor-prefixes.yaml | 2 ++
2 files changed, 4 insertions(+)
diff --git
Add an I2C bus driver for virtio para-virtualization.
The controller can be emulated by the backend driver in
any device model software by following the virtio protocol.
The device specification can be found on
https://lists.oasis-open.org/archives/virtio-comment/202101/msg8.html.
By
On Tue, Feb 23, 2021 at 01:10:10AM +0100, Frederic Weisbecker wrote:
> Provide a way to tune the deferred wakeup level we want to perform from
> a safe wakeup point. Currently those sites are:
>
> * nocb_timer
> * user/idle/guest entry
> * CPU down
> * softirq/rcuc
>
> All of these sites perform
On 3/15/2021 7:29 AM, Adrian Hunter wrote:
On 12/03/21 12:19 am, Asutosh Das wrote:
During runtime-suspend of ufs host, the scsi devices are
already suspended and so are the queues associated with them.
But the ufs host sends SSU to wlun during its runtime-suspend.
During the process
Hi Jiuyang
On Tue, Mar 16, 2021 at 1:56 AM Jiuyang Liu wrote:
>
> Sorry for the noise, Andrew gave me feedbacks, and pointed two bugs in
> last patch.
> 1. asid should be thread safe, which is not the intent.
> 2. asid extracting logic was wrong.
>
> This patch fixes these bugs.
>
>
This patch inserts SFENCE.VMA after modifying PTE based on RISC-V
specification.
arch/riscv/include/asm/pgtable.h:
1. implement pte_user, pte_global and pte_leaf to check correspond
attribute of a pte_t.
2. insert SFENCE.VMA in set_pte_at based on RISC-V Volume 2, Privileged
Spec v. 20190608
From: Arjun Roy
TCP zerocopy receive is used by high performance network applications
to further scale. For RX zerocopy, the memory containing the network
data filled by the network driver is directly mapped into the address
space of high performance applications. To keep the TLB cost low,
these
On Mon, Mar 08, 2021 at 07:18:28PM +0200, Cristian Ciocaltea wrote:
> The following clocks of the Actions Semi Owl S500 SoC have been defined
> to use a shared clock factor table 'bisp_factor_table[]': DE[1-2], VCE,
> VDE, BISP, SENSOR[0-1]
>
> There are several issues involved in this approach:
>> +if (queue < tx_cnt) {
>> +ec->tx_coalesce_usecs = priv->tx_coal_timer[queue];
>> +ec->tx_max_coalesced_frames = priv->tx_coal_frames[queue];
>> +} else {
>> +ec->tx_coalesce_usecs = -1;
>> +ec->tx_max_coalesced_frames = -1;
>> +}
>> +
On Tue, Mar 16, 2021 at 10:08:51AM +0800, Huang, Ying wrote:
> Yu Zhao writes:
> [snip]
>
> > +/* Main function used by foreground, background and user-triggered aging.
> > */
> > +static bool walk_mm_list(struct lruvec *lruvec, unsigned long next_seq,
> > +struct
s/extremal/external/
Signed-off-by: Bhaskar Chowdhury
---
But...Paolo,is it also "extreme"? I am in a catch-22?
Documentation/virt/kvm/timekeeping.rst | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/Documentation/virt/kvm/timekeeping.rst
+Alex
On Tue, Mar 16, 2021 at 9:20 AM Jiuyang Liu wrote:
>
> This patch inserts SFENCE.VMA after modifying PTE based on RISC-V
> specification.
>
> arch/riscv/include/asm/pgtable.h:
> 1. implement pte_user, pte_global and pte_leaf to check correspond
> attribute of a pte_t.
Adding pte_user(),
Hi Zhiyong,
On Fri, Mar 12, 2021 at 2:35 PM Zhiyong Tao wrote:
>
> When multiple threads operate on the same register resource
> which include multiple pin, It will make the register resource
> wrong to control. So we add lock to avoid the case.
>
> Signed-off-by: Zhiyong Tao
> ---
>
add compatible entry "nxp,imx8mp-fspi" in NXP FlexSPI controller
Signed-off-by: Heiko Schocher
---
Changes in v3:
- no changes, rebased against
git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi.git for-next
144c79ef33536 Merge tag 'perf-tools-fixes-for-v5.12-2020-03-07' of
From: Aubrey Li
Add idle cpumask to track idle cpus in sched domain. Every time
a CPU enters idle, the CPU is set in idle cpumask to be a wakeup
target. And if the CPU is not in idle, the CPU is cleared in idle
cpumask during scheduler tick to ratelimit idle cpumask update.
When a task wakes up
On 3/15/21 9:52 PM, Bhaskar Chowdhury wrote:
>
> s/seting/setting/
>
> Signed-off-by: Bhaskar Chowdhury
Acked-by: Randy Dunlap
> ---
> drivers/usb/host/sl811_cs.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/usb/host/sl811_cs.c
On 3/15/21 5:12 PM, Laurent Pinchart wrote:
> Hi Yamada-san,
>
> On Tue, Mar 16, 2021 at 02:43:45AM +0900, Masahiro Yamada wrote:
>> On Mon, Mar 15, 2021 at 3:40 PM Viresh Kumar wrote:
>>> On 14-03-21, 20:16, Frank Rowand wrote:
On 3/12/21 11:11 PM, Frank Rowand wrote:
> On 3/12/21 1:13
+Lorenzo
Hi Sowjanya,
Sorry for the delayed response. I am still in vacation ο
On Thu, Mar 11, 2021 at 01:11:37PM -0800, Sowjanya Komatineni wrote:
>
> On 3/10/21 6:52 PM, Sudeep Holla wrote:
> > On Mon, Mar 08, 2021 at 10:32:17AM -0800, Sowjanya Komatineni wrote:
> > > On 3/7/21 8:37 PM,
On Mon, Mar 08, 2021 at 07:18:29PM +0200, Cristian Ciocaltea wrote:
> There are a few issues with the setup of the Actions Semi Owl S500 SoC's
> clock chain involving AHPPREDIV, H and AHB clocks:
>
> * AHBPREDIV clock is defined as a muxer only, although it also acts as
> a divider.
> * H clock
On Mon, Mar 15, 2021 at 07:56:02PM +, Vladimir Oltean wrote:
> +Andrew, Vivien,
>
> On Mon, Mar 15, 2021 at 02:53:26PM +0100, gre...@linuxfoundation.org wrote:
> > From: Greg Kroah-Hartman
> >
> > From: Vladimir Oltean
> >
> > [ Upstream commit a3b0b6479700a5b0af2c631cb2ec0fb7a0d978f2 ]
> >
> +static inline u64 hv_get_register(unsigned int reg)
> +{
> + return hv_get_vpreg(reg);
> +}
> +
> +/* SMCCC hypercall parameters */
> +#define HV_SMCCC_FUNC_NUMBER 1
> +#define HV_FUNC_ID ARM_SMCCC_CALL_VAL( \
> + ARM_SMCCC_STD_CALL,
Hi all,
After merging the opp tree, today's linux-next build (powerpc
ppc64_defconfig) produced this warning:
In file included from include/linux/devfreq.h:15,
from drivers/base/power/main.c:36:
include/linux/pm_opp.h:341:1: warning: 'devm_pm_opp_register_set_opp_helper'
On 21-03-15 15:51:04, Sanket Parmar wrote:
> > > +
> > > priv_req->flags |= REQUEST_UNALIGNED;
> > > trace_cdns3_prepare_aligned_request(priv_req);
> > >
> > > @@ -3088,11 +3113,11 @@ static void cdns3_gadget_exit(struct cdns
> > *cdns)
> > > struct cdns3_aligned_buf *buf;
> > >
> >
On Tue, Mar 16, 2021 at 09:11:02AM +0800, Chao Yu wrote:
> On 2021/3/5 17:58, Huang Jianan via Linux-erofs wrote:
> > Currently, err would be treated as io error. Therefore, it'd be
> > better to ensure memory allocation during rolling decompression
> > to avoid such io error.
> >
> > In the long
On 2021/3/16 2:42, Mike Kravetz wrote:
> On 3/12/21 7:11 PM, Miaohe Lin wrote:
>> On 2021/3/13 3:09, Mike Kravetz wrote:
>>> On 3/1/21 4:05 AM, Miaohe Lin wrote:
The current implementation of hugetlb_cgroup for shared mappings could have
different behavior. Consider the following two
Lee,
> This set is part of a larger effort attempting to clean-up W=1 kernel
> builds, which are currently overwhelmingly riddled with niggly little
> warnings.
Applied to 5.13/scsi-staging, thanks!
--
Martin K. Petersen Oracle Linux Engineering
On Mon, Mar 15, 2021 at 10:21:11AM -0500, Alex Elder wrote:
> The ipa_init_modem_driver_req_ei[] encoding array for the
> INIT_MODEM_DRIVER request message has some errors in it.
>
> First, the tlv_type associated with the hw_stats_quota_size field is
> wrong; it duplicates the valiue used for
From: zuoqilin
Change 'bufer' to 'buffer'.
Signed-off-by: zuoqilin
---
include/linux/mpi.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/include/linux/mpi.h b/include/linux/mpi.h
index 3e5358f..6e6b15a 100644
--- a/include/linux/mpi.h
+++ b/include/linux/mpi.h
@@ -267,7
On 16/03/21 4:35 pm, Guenter Roeck wrote:
> On 3/15/21 8:30 PM, Chris Packham wrote:
>> On 16/03/21 3:35 pm, Chris Packham wrote:
>>> The BPA-RS600 is a compact 600W AC to DC removable power supply module.
>>>
>>> Signed-off-by: Chris Packham
>>>
>>> +static const struct of_device_id
On Mon, Mar 08, 2021 at 07:18:27PM +0200, Cristian Ciocaltea wrote:
> Drop the unsupported entries in the factor table used for the SD[0-2]
> clocks definitions on the Actions Semi Owl S500 SoC.
>
> Fixes: ed6b4795ece4 ("clk: actions: Add clock driver for S500 SoC")
> Signed-off-by: Cristian
On Tue, Mar 16, 2021 at 10:07:36AM +0800, Huang, Ying wrote:
> Rik van Riel writes:
>
> > On Sat, 2021-03-13 at 00:57 -0700, Yu Zhao wrote:
> >
> >> +/*
> >> + * After pages are faulted in, they become the youngest generation.
> >> They must
> >> + * go through aging process twice before they
Hi Gavin,
On 2021/3/16 11:52, Gavin Shan wrote:
> Hi Keqian,
>
> On 3/15/21 8:42 PM, Gavin Shan wrote:
>> On 3/15/21 7:04 PM, Keqian Zhu wrote:
>>> On 2021/3/15 12:18, Gavin Shan wrote:
find_vma_intersection() has been existing to search the intersected
vma. This uses the function
On Mon, Mar 15, 2021 at 9:16 PM Arjun Roy wrote:
>
> From: Arjun Roy
>
> TCP zerocopy receive is used by high performance network applications
> to further scale. For RX zerocopy, the memory containing the network
> data filled by the network driver is directly mapped into the address
> space of
s/kernal/kernel/
Signed-off-by: Bhaskar Chowdhury
---
arch/x86/events/intel/bts.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/x86/events/intel/bts.c b/arch/x86/events/intel/bts.c
index 731dd8d0dbb1..6320d2cfd9d3 100644
--- a/arch/x86/events/intel/bts.c
+++
Hello Steen,
On 15-03-21, 16:04, Steen Hegelund wrote:
> Hi Kishon, Vinod, Andrew, Jacub, and David,
>
> I just wanted to know if you think that the Generic PHY subsystem might
> not be the right place for this Ethernet SerDes PHY driver after all.
>
> Originally I chose this subsystem for
Hello:
This patch was applied to bpf/bpf-next.git (refs/heads/master):
On Mon, 15 Mar 2021 21:44:54 +0900 you wrote:
> This patch fixes a spelling typo in do_hbm_test.sh
>
> Signed-off-by: Masanari Iida
> ---
> samples/bpf/do_hbm_test.sh | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
On Mon, 15 Mar 2021 at 19:27, wrote:
>
> From: Greg Kroah-Hartman
>
> This is the start of the stable review cycle for the 5.10.24 release.
> There are 290 patches in this series, all will be posted as a response
> to this one. If anyone has any issues with these being applied, please
> let me
On 3/15/21 9:19 PM, Bhaskar Chowdhury wrote:
>
> s/kernal/kernel/
>
> Signed-off-by: Bhaskar Chowdhury
> ---
> arch/x86/events/intel/bts.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/arch/x86/events/intel/bts.c b/arch/x86/events/intel/bts.c
> index
Hello:
This patch was applied to bpf/bpf-next.git (refs/heads/master):
On Mon, 15 Mar 2021 14:29:51 +0100 you wrote:
> This seems to be a reminiscent from the hashmap tests.
>
> Signed-off-by: Pedro Tammela
> ---
> tools/testing/selftests/bpf/map_tests/array_map_batch_ops.c | 5 -
> 1
No filename_mountpoint any more
see commit: commit 161aff1d93ab ("LOOKUP_MOUNTPOINT:
fold path_mountpointat() into path_lookupat()")
Without filename_mountpoint and path_mountpoint(), the
numbers should be four & three:
"These four correspond roughly to the three path_*() functions"
traling_symlink() was merged into lookup_last, do_last().
do_last() has later been split into open_last_lookups()
and do_open().
see related commit: commit c5971b8c6354 ("take post-lookup
part of do_last() out of loop")
Signed-off-by: Fox Chen
---
Documentation/filesystems/path-lookup.rst |
Add macro name MAXSYMLINKS to the symlink limit description, so
that it is consistent with path name length description above.
Signed-off-by: Fox Chen
---
Documentation/filesystems/path-lookup.rst | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git
follow_link has been replaced by get_link() which can be
called in RCU mode.
see commit: commit 6b2553918d8b ("replace ->follow_link() with
new method that could stay in RCU mode")
Signed-off-by: Fox Chen
---
Documentation/filesystems/path-lookup.rst | 12 +---
1 file changed, 5
instead of lookup_real()/vfs_create(), i_op->lookup() and
i_op->create() will be called directly.
update vfs_open() logic
should_follow_link is merged into lookup_last() or open_last_lookup()
which returns symlink name instead of an integer.
Signed-off-by: Fox Chen
---
WALK_GET is changed to WALK_TRAILING with a different meaning.
Here it should be WALK_NOFOLLOW. WALK_PUT dosn't exist, we have
WALK_MORE.
WALK_PUT == !WALK_MORE
And there is not should_follow_link().
Related commits:
commit 8c4efe22e7c4 ("namei: invert the meaning of WALK_FOLLOW")
commit
Hoi Hans,
on a slighly different but also related topic. Did you ever come across
SMSC SCH5347? Seems to be pretty similar to 56xx, only with spec non
public ... and probably less often in use
Maybe you happen to have code, or know the differences. We already have
it working with a modified copy
No inode->put_link operation anymore. We use delayed_call to
deal with link destruction. Cookie has been replaced with
struct delayed_call.
Related commit: commit fceef393a538 ("switch ->get_link() to
delayed_call, kill ->put_link()")
Signed-off-by: Fox Chen
---
no get_link() anymore. we have step_into() and pick_link().
walk_component() will call step_into(), in turn call pick_link,
and return symlink name.
Signed-off-by: Fox Chen
---
Documentation/filesystems/path-lookup.rst | 10 --
1 file changed, 4 insertions(+), 6 deletions(-)
diff
The Path lookup is a very complex subject in VFS. The path-lookup
document provides a very detailed guidance to help people understand
how path lookup works in the kernel. This document was originally
written based on three lwn articles five years ago. As times goes by,
some of the content is
No path_to_namei() anymore, step_into() will be called.
Related commit: commit c99687a03a78 ("fold path_to_nameidata()
into its only remaining caller")
Signed-off-by: Fox Chen
---
Documentation/filesystems/path-lookup.rst | 7 ---
1 file changed, 4 insertions(+), 3 deletions(-)
diff --git
No follow_managed() anymore, handle_mounts(),
traverse_mounts(), will do the job.
see commit 9deed3ebca24 ("new helper: traverse_mounts()")
Signed-off-by: Fox Chen
---
Documentation/filesystems/path-lookup.rst | 10 +-
1 file changed, 5 insertions(+), 5 deletions(-)
diff --git
path_mountpoint() doesn't exist anymore. Have been folded
into path_lookup_at when flag is set with LOOKUP_MOUNTPOINT.
Check commit: commit 161aff1d93abf0e ("LOOKUP_MOUNTPOINT: fold
path_mountpointat() into path_lookupat()")
Signed-off-by: Fox Chen
---
Documentation/filesystems/path-lookup.rst
get_link() is merged into pick_link(). i_op->follow_link is
replaced with i_op->get_link(). get_link() can return ERR_PTR(0)
which equals NULL.
Signed-off-by: Fox Chen
---
Documentation/filesystems/path-lookup.rst | 13 ++---
1 file changed, 6 insertions(+), 7 deletions(-)
diff --git
On Mon, Mar 15, 2021 at 4:41 PM Johannes Weiner wrote:
>
> Fix a sleep in atomic section problem: wb_writeback() takes a spinlock
> and calls wb_over_bg_thresh() -> mem_cgroup_wb_stats, but the regular
> rstat flushing function called from in there does lockbreaking and may
> sleep. Switch to the
On Tue, 16 Mar 2021 06:14:08 +0800 mohammad.athari.ism...@intel.com
wrote:
> From: Voon Weifeng
>
> Enabled EST related interrupts as below:
> 1) Constant Gate Control Error (CGCE)
> 2) Head-of-Line Blocking due to Scheduling (HLBS)
> 3) Head-of-Line Blocking due to Frame Size (HLBF).
> 4) Base
Hi Jiri,
On 3/16/2021 7:03 AM, Jiri Olsa wrote:
On Thu, Mar 11, 2021 at 03:07:19PM +0800, Jin Yao wrote:
On hybrid platform, one event is available on one pmu
(such as, available on cpu_core or on cpu_atom).
This patch saves the pmu name to the pmu field of struct perf_pmu_alias.
Then next we
Hi Tejun,
On Mon, 15 Mar 2021 19:54:36 -0400, Tejun Heo wrote:
> Hello,
>
> On Mon, Mar 15, 2021 at 04:40:12PM -0700, Jacob Pan wrote:
> > 2. then we want to move/migrate Process1 to cg_B. so we need uncharge
> > 10 of cg_A, charge 10 of cg_B
>
> So, what I don't get is why this migration
On 3/15/21 3:46 AM, Srinivas Neeli wrote:
> "%p" is not printing the pointer value.
> In driver, printing pointer value is not useful so avoiding print.
>
> Signed-off-by: Srinivas Neeli
Reviewed-by: Guenter Roeck
> ---
> drivers/watchdog/of_xilinx_wdt.c | 4 ++--
> 1 file changed, 2
On 3/15/21 3:46 AM, Srinivas Neeli wrote:
> clk is an optional property, if clock not defined,
> calling clk_prepare_enable() and devm_add_action_or_reset()
> are not useful.
> so calling these two apis only when clock is present.
>
> Addresses-Coverity:"FORWARD_NULL"
>
> Signed-off-by: Srinivas
Remove extra lines in many functions in r8192U_wx.c.
Signed-off-by: zhaoxiao
---
drivers/staging/rtl8192u/r8192U_wx.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/staging/rtl8192u/r8192U_wx.c
b/drivers/staging/rtl8192u/r8192U_wx.c
index
Why record task_work_add() call stack?
Syzbot reports many use-after-free issues for task_work, see [1].
After see the free stack and the current auxiliary stack, we think
they are useless, we don't know where register the work, this work
may be the free call stack, so that we miss the root cause
On 3/15/21 7:27 PM, Miaohe Lin wrote:
> The fault_mutex hashing overhead can be avoided in truncate_op case
> because page faults can not race with truncation in this routine. So
> calculate hash for fault_mutex only in !truncate_op case to save some cpu
> cycles.
>
> Reviewed-by: Mike Kravetz
On Wed, 10 Mar 2021 22:30:05 -0800, Lv Yunlong wrote:
> In myrs_cleanup, cs->mmio_base will be freed twice by
> iounmap().
Applied to 5.12/scsi-fixes, thanks!
[1/1] scsi: Fix a double free in myrs_cleanup
https://git.kernel.org/mkp/scsi/c/2bb817712e2f
--
Martin K. Petersen Oracle
On Wed, 10 Mar 2021 19:22:12 -0600, Tyrel Datwyler wrote:
> The buffer for negotiating channel setup is DMA allocated at device
> probe time. However, the remove path fails to free this allocation which
> will prevent the hypervisor from releasing the virtual device in the
> case of a hotplug
On Wed, 10 Mar 2021 22:46:36 -0800, Lv Yunlong wrote:
> In st_open, if STp->in_use is true, STp will be freed by
> scsi_tape_put(). However, STp is still used by DEBC_printk()
> after. It is better to DEBC_printk() before scsi_tape_put().
Applied to 5.12/scsi-fixes, thanks!
[1/1] scsi: Fix a
z_erofs_decompressqueue_endio may not be executed in the atomic
context, for example, when dm-verity is turned on. In this scenario,
data can be decompressed directly to get rid of additional kworker
scheduling overhead. Also, it makes no sense to apply synchronous
decompression for such case.
On Mon, 1 Mar 2021 18:47:36 +0530, Bhaskar Chowdhury wrote:
> s/circuting/circuiting/
Applied to 5.13/scsi-queue, thanks!
[1/1] drivers: scsi: qla4xxx: Fix a spello in the file qla4xxx/ql4_os.c
https://git.kernel.org/mkp/scsi/c/014ace23a5ec
--
Martin K. Petersen Oracle Linux
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