[PATCH v3 11/25] mm/memcg: Add folio_memcg, lock_folio_memcg and unlock_folio_memcg

The memcontrol code already assumes that page_memcg() will be called with a non-tail page, so make that more natural by wrapping it with a folio API. Signed-off-by: Matthew Wilcox (Oracle) --- include/linux/memcontrol.h | 16 mm/memcontrol.c| 36 +

[PATCH v3 09/25] mm: Add folio_index, folio_page and folio_contains

folio_index() is the equivalent of page_index() for folios. folio_page() finds the page in a folio for a page cache index. folio_contains() tells you whether a folio contains a particular page cache index. Signed-off-by: Matthew Wilcox (Oracle) --- include/linux/pagemap.h | 23

[PATCH v3 10/25] mm/util: Add folio_mapping and folio_file_mapping

These are the folio equivalent of page_mapping() and page_file_mapping(). Adjust page_file_mapping() and page_mapping_file() to use folios internally. Signed-off-by: Matthew Wilcox (Oracle) --- include/linux/mm.h | 23 +++ mm/swapfile.c | 6 +++--- mm/util.c |

Re: [abaci-bug...@linux.alibaba.com: [PATCH] s390: Simplify the calculation of variables]

Date: Tue, 26 Jan 2021 17:09:12 +0800 From: Jiapeng Zhong To: h...@linux.ibm.com Cc: , Jiapeng Zhong Subject: [PATCH] s390: Simplify the calculation of variables Message-Id: <1611652152-58139-1-git-send-email-abaci-bug...@linux.alibaba.com> X-Mailer: git-send-email 1.8.3.1 Fix the follo

Re: kprobes broken since 0d00449c7a28 ("x86: Replace ist_enter() with nmi_enter()")

On 28.01.21 г. 5:38 ч., Masami Hiramatsu wrote: > Hi, > > > Yeah, there is. Nikolay, could you try this tentative patch? I can confirm that with this patch everything is working. I also applied the following diff: diff --git a/kernel/trace/bpf_trace.c b/kernel/trace/bpf_trace.c index 6c001

Re: [PATCH] speakup: Make dectlk flush timeout configurable

On Thu, Jan 28, 2021 at 12:44:44AM +0100, Samuel Thibault wrote: > In case the serial port or cable got faulty, we may not be getting > acknowledgements any more. The driver then currently waits for 4s to > avoid jamming the device. This makes this delay configurable. > > Signed-off-by: Samuel Thi

[RFC PATCH 00/34] block: introduce bio_new()

Hi, This is a *compile only RFC* which adds a generic helper to initialize the various fields of the bio that is repeated all the places in file-systems, block layer, and drivers. The new helper allows callers to initialize non-optional members of bio such as bdev, sector, op, opflags, max_bvecs

[RFC PATCH 05/34] xen-blkback: use bio_new

Create a wrapper on the tio of the bio_new() named get_new_bio() & use it in the dispatch_rw_block_io(). p Signed-off-by: Chaitanya Kulkarni --- drivers/block/xen-blkback/blkback.c | 20 +--- 1 file changed, 13 insertions(+), 7 deletions(-) diff --git a/drivers/block/xen-blkback/

Re: [workqueue] d5bff968ea: WARNING:at_kernel/workqueue.c:#process_one_work

On 1/27/2021 5:21 PM, Hillf Danton wrote: On Wed, 27 Jan 2021 16:04:25 +0800 Xing Zhengjun wrote: On 1/26/2021 3:39 PM, Hillf Danton wrote: On 26 Jan 2021 10:45:21 +0800 Xing Zhengjun wrote: On 1/25/2021 5:29 PM, Hillf Danton wrote: On 25 Jan 2021 16:31:32 +0800 Xing Zhengjun wrote: On 1/2

Re: [PATCH v4 2/4] mm: failfast mode with __GFP_NORETRY in alloc_contig_range

On Wed 27-01-21 12:42:45, Minchan Kim wrote: > On Tue, Jan 26, 2021 at 08:44:49AM +0100, Michal Hocko wrote: > > On Mon 25-01-21 11:33:36, Minchan Kim wrote: > > > On Mon, Jan 25, 2021 at 02:12:00PM +0100, Michal Hocko wrote: > > > > On Thu 21-01-21 09:55:00, Minchan Kim wrote: > > > > > Contiguous

Re: [PATCH V3] mtd: rawnand: qcom: update last code word register

On Sun, Jan 10, 2021 at 09:31:45AM +0530, Md Sadre Alam wrote: > From QPIC version 2.0 onwards new register got added to > read last codeword. This change will update the same. > > For first three code word READ_LOCATION_n register will be > use.For last code word READ_LOCATION_LAST_CW_n register

Re: [PATCH] USB: serial: option: Adding support for Cinterion MV31

On Wed, Jan 27, 2021 at 08:58:46PM +0100, Christoph Schemmel wrote: > Adding support for Cinterion device MV31 for enumeration with > PID 0x00B3 and 0x00B7. > > usb-devices output for 0x00B3 > T: Bus=04 Lev=01 Prnt=01 Port=00 Cnt=01 Dev#= 6 Spd=5000 MxCh= 0 > D: Ver= 3.20 Cls=ef(misc ) Sub=02 P

Re: [PATCH v11 3/9] drm/mediatek: add RDMA fifo size error handle

Hi, Hsin-Yi: On Thu, 2021-01-28 at 15:27 +0800, Hsin-Yi Wang wrote: > From: Yongqiang Niu > > This patch add RDMA fifo size error handle > rdma fifo size will not always bigger than the calculated threshold > if that case happened, we need set fifo size as the threshold > > Signed-off-by: Yongq

[RFC PATCH 06/34] zram: use bio_new

Signed-off-by: Chaitanya Kulkarni --- drivers/block/zram/zram_drv.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) diff --git a/drivers/block/zram/zram_drv.c b/drivers/block/zram/zram_drv.c index d7018543842e..5d744e528d4f 100644 --- a/drivers/block/zram/zram_drv.c +++ b/drivers/bloc

[PATCH v2] kdb: kdb_support: Fix debugging information problem

There are several common patterns. 0: kdb_printf("...",...); which is the normal one. 1: kdb_printf("%s: "...,__func__,...) We could improve '1' to this : #define kdb_func_printf(format, args...) \ kdb_printf("%s: " format, __func__, ## args) 2:

[PATCH] opp: Allow lazy-linking of required-opps

The OPP core currently requires the required opp tables to be available before the dependent OPP table is added, as it needs to create links from the dependent OPP table to the required ones. This may not be convenient for all the platforms though, as this requires strict ordering for probing the d

Re: [PATCH v11 8/9] soc: mediatek: add mtk mutex support for MT8183

Hi, Hsin-Yi: On Thu, 2021-01-28 at 15:28 +0800, Hsin-Yi Wang wrote: > From: Yongqiang Niu > > Add mtk mutex support for MT8183 SoC. > > Signed-off-by: Yongqiang Niu > Signed-off-by: Hsin-Yi Wang > --- > drivers/soc/mediatek/mtk-mutex.c | 50 > 1 file changed,

Re: [PATCH] mtd: use refcount to prevent corruption

Tomas, - Ursprüngliche Mail - >> >> Can you please explain a little more what devices are involved? >> >> Does it implement _get_device() and _put_device()? >> > No this is not connected to those handlers of the underlying device >> > and those won't help. >> > I have a spi device provided

Re: [PATCH 3/3] printk: dump full information of page flags in pGp

On Thu, Jan 28, 2021 at 10:52 AM Miaohe Lin wrote: > > Hi: > On 2021/1/28 10:19, Yafang Shao wrote: > > Currently the pGp only shows the names of page flags, rather than > > the full information including section, node, zone, last cpupid and > > kasan tag. While it is not easy to parse these infor

Re: [PATCH v11 7/9] drm/mediatek: enable dither function

Hi, Hsin-Yi: On Thu, 2021-01-28 at 15:28 +0800, Hsin-Yi Wang wrote: > From: Yongqiang Niu > > for 5 or 6 bpc panel, we need enable dither function > to improve the display quality > > Signed-off-by: Yongqiang Niu > Signed-off-by: Hsin-Yi Wang > --- > drivers/gpu/drm/mediatek/mtk_drm_ddp_comp

[RFC PATCH 11/34] nvmet: use bio_new in nvmet_bdev_execute_rw

Signed-off-by: Chaitanya Kulkarni --- drivers/nvme/target/io-cmd-bdev.c | 9 +++-- 1 file changed, 3 insertions(+), 6 deletions(-) diff --git a/drivers/nvme/target/io-cmd-bdev.c b/drivers/nvme/target/io-cmd-bdev.c index bf6e0ac9ad28..f5fd93a796a6 100644 --- a/drivers/nvme/target/io-cmd-bdev

[RFC PATCH 10/34] dm-zoned: use bio_new in dmz_rdwr_block

Signed-off-by: Chaitanya Kulkarni --- drivers/md/dm-zoned-metadata.c | 6 ++ 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/drivers/md/dm-zoned-metadata.c b/drivers/md/dm-zoned-metadata.c index fa0ee732c6e9..5b5ed5fce2ed 100644 --- a/drivers/md/dm-zoned-metadata.c +++ b/drivers

[RFC PATCH 14/34] fs/buffer: use bio_new in submit_bh_wbc

Signed-off-by: Chaitanya Kulkarni --- fs/buffer.c | 16 +++- 1 file changed, 7 insertions(+), 9 deletions(-) diff --git a/fs/buffer.c b/fs/buffer.c index 32647d2011df..fcbea667fa04 100644 --- a/fs/buffer.c +++ b/fs/buffer.c @@ -3023,12 +3023,16 @@ static int submit_bh_wbc(int op, int

[PATCH v2 2/3] isofs: handle large user and group ID

From: BingJing Chang If uid or gid of mount options is larger than INT_MAX, isofs_fill_super will return -EINVAL. The problem can be encountered by a domain user or reproduced via: mount -o loop,uid=2147483648 ubuntu-16.04.6-server-amd64.iso /mnt This can be fixed as commit 233a01fa9c4c ("fuse:

[PATCH v2 1/3] parser: add unsigned int parser

From: BingJing Chang Will be used by fs parsing options & fix kernel-doc typos Reviewed-by: Robbie Ko Reviewed-by: Chung-Chiang Cheng Reviewed-by: Matthew Wilcox Reviewed-by: Randy Dunlap Signed-off-by: BingJing Chang --- include/linux/parser.h | 1 + lib/parser.c | 44 ++

[RFC PATCH 07/34] dm: use bio_new in dm-log-writes

Signed-off-by: Chaitanya Kulkarni --- drivers/md/dm-log-writes.c | 30 ++ 1 file changed, 10 insertions(+), 20 deletions(-) diff --git a/drivers/md/dm-log-writes.c b/drivers/md/dm-log-writes.c index e3d35c6c9f71..7ca9af407647 100644 --- a/drivers/md/dm-log-writes.c ++

[PATCH v2 3/3] udf: handle large user and group ID

From: BingJing Chang If uid or gid of mount options is larger than INT_MAX, udf_fill_super will return -EINVAL. The problem can be encountered by a domain user or reproduced via: mount -o loop,uid=2147483648 something-in-udf-format.iso /mnt This can be fixed as commit 233a01fa9c4c ("fuse: handl

Re: [PATCH 3/3] printk: dump full information of page flags in pGp

On Thu, Jan 28, 2021 at 10:35 AM Joe Perches wrote: > > On Thu, 2021-01-28 at 10:19 +0800, Yafang Shao wrote: > > Currently the pGp only shows the names of page flags, rather than > > the full information including section, node, zone, last cpupid and > > kasan tag. While it is not easy to parse t

Re: [PATCH 0/4] add xhci hooks for USB offload

On Thu, Jan 28, 2021 at 08:31:14AM +0200, Mathias Nyman wrote: > On 28.1.2021 5.38, Howard Yen wrote: > > On Tue, Jan 26, 2021 at 10:19 PM Greg KH wrote: > >> > >> On Fri, Jan 22, 2021 at 05:32:58PM +0200, Mathias Nyman wrote: > >>> > >>> Ok, before adding hooks like this I think we need to see ho

Re: [RESEND PATCH 1/2] KVM: X86: Add support for the emulation of DR6_BUS_LOCK bit

On 1/28/2021 3:25 PM, Paolo Bonzini wrote: On 28/01/21 08:17, Xiaoyao Li wrote: "Active low" means that the bit is usually 1 and goes to 0 when the condition (such as RTM or bus lock) happens.  For almost all those DR6 bits the value is in fact always 1, but if they are defined in the future

Re: [PATCH 1/2] qspinlock: Ensure writes are pushed out of core write buffer

Hi! On 27/01/2021 23:43, Peter Zijlstra wrote: > On Wed, Jan 27, 2021 at 09:01:08PM +0100, Alexander A Sverdlin wrote: >> From: Alexander Sverdlin >> >> Ensure writes are pushed out of core write buffer to prevent waiting code >> on another cores from spinning longer than necessary. > Our smp_wmb

Re: [RFC 1/2] arm64/mm: Fix pfn_valid() for ZONE_DEVICE based memory

On 1/27/21 2:59 PM, David Hildenbrand wrote: > On 27.01.21 05:06, Anshuman Khandual wrote: >> >> >> On 1/25/21 2:43 PM, David Hildenbrand wrote: >>> On 25.01.21 07:22, Anshuman Khandual wrote: On 12/22/20 12:42 PM, Anshuman Khandual wrote: > pfn_valid() asserts that there is a membl

Re: [PATCH] KVM: x86: fix CPUID entries returned by KVM_GET_CPUID2 ioctl

On 28/01/21 03:44, Michael Roth wrote: Recent commit 255cbecfe0 modified struct kvm_vcpu_arch to make 'cpuid_entries' a pointer to an array of kvm_cpuid_entry2 entries rather than embedding the array in the struct. KVM_SET_CPUID and KVM_SET_CPUID2 were updated accordingly, but KVM_GET_CPUID2 was

Re: [PATCH v2] KVM: kvmclock: Fix vCPUs > 64 can't be online/hotpluged

On Wed, 27 Jan 2021 at 08:28, Wanpeng Li wrote: > > On Wed, 27 Jan 2021 at 01:26, Paolo Bonzini wrote: > > > > On 26/01/21 02:28, Wanpeng Li wrote: > > > ping， > > > On Mon, 18 Jan 2021 at 17:08, Wanpeng Li wrote: > > >> > > >> From: Wanpeng Li > > >> > > >> The per-cpu vsyscall pvclock data po

[PATCH] nbd: Fix NULL pointer in flush_workqueue

Open /dev/nbdX first, the config_refs will be 1 and the pointers in nbd_device are still null. Disconnect /dev/nbdX, then reference a null recv_workq. The protection by config_refs in nbd_genl_disconnect is useless. [ 656.366194] BUG: kernel NULL pointer dereference, address: 0020 [

[RFC PATCH 19/34] fs/jfs/jfs_logmgr.c: use bio_new in lbmRead

Signed-off-by: Chaitanya Kulkarni --- fs/jfs/jfs_logmgr.c | 7 ++- 1 file changed, 2 insertions(+), 5 deletions(-) diff --git a/fs/jfs/jfs_logmgr.c b/fs/jfs/jfs_logmgr.c index 9330eff210e0..4481f3e33a3f 100644 --- a/fs/jfs/jfs_logmgr.c +++ b/fs/jfs/jfs_logmgr.c @@ -1979,17 +1979,14 @@ static

Re: [PATCH v11 4/9] drm/mediatek: add mtk_dither_set_common() function

On Thu, 2021-01-28 at 15:27 +0800, Hsin-Yi Wang wrote: > Current implementation of mtk_dither_set() cast dev data to > struct mtk_ddp_comp_dev. But other devices with different dev data > would also call this function. > > Separate necessary parameters out so other device components (dither, > gam

[RFC PATCH 16/34] fs/direct-io: use bio_new in dio_bio_alloc

Signed-off-by: Chaitanya Kulkarni --- fs/crypto/bio.c | 2 +- fs/direct-io.c | 6 ++ 2 files changed, 3 insertions(+), 5 deletions(-) diff --git a/fs/crypto/bio.c b/fs/crypto/bio.c index 20dab9bdf098..28cd62ce853e 100644 --- a/fs/crypto/bio.c +++ b/fs/crypto/bio.c @@ -148,7 +148,7 @@ int fs

[RFC PATCH 17/34] iomap: use bio_new in iomap_dio_zero

Signed-off-by: Chaitanya Kulkarni --- fs/iomap/direct-io.c | 6 ++ 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/fs/iomap/direct-io.c b/fs/iomap/direct-io.c index ea1e8f696076..f6c557a1bd25 100644 --- a/fs/iomap/direct-io.c +++ b/fs/iomap/direct-io.c @@ -189,15 +189,13 @@ ioma

[RFC PATCH 18/34] iomap: use bio_new in iomap_dio_bio_actor

Signed-off-by: Chaitanya Kulkarni --- fs/iomap/direct-io.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) diff --git a/fs/iomap/direct-io.c b/fs/iomap/direct-io.c index f6c557a1bd25..0737192f7e5c 100644 --- a/fs/iomap/direct-io.c +++ b/fs/iomap/direct-io.c @@ -267,9 +267,8 @@ iomap_d

Re: [PATCH 1/2] qspinlock: Ensure writes are pushed out of core write buffer

Hi! On 27/01/2021 23:21, Will Deacon wrote: > On Wed, Jan 27, 2021 at 09:01:08PM +0100, Alexander A Sverdlin wrote: >> From: Alexander Sverdlin >> >> Ensure writes are pushed out of core write buffer to prevent waiting code >> on another cores from spinning longer than necessary. >> >> 6 threads

[PATCH v11 4/9] drm/mediatek: add mtk_dither_set_common() function

Current implementation of mtk_dither_set() cast dev data to struct mtk_ddp_comp_dev. But other devices with different dev data would also call this function. Separate necessary parameters out so other device components (dither, gamma) can call this function. Signed-off-by: Hsin-Yi Wang --- driv

[PATCH v11 5/9] drm/mediatek: separate gamma module

From: Yongqiang Niu mt8183 gamma module will different with mt8173 separate gamma for add private data Signed-off-by: Yongqiang Niu Signed-off-by: Hsin-Yi Wang Reviewed-by: CK Hu --- drivers/gpu/drm/mediatek/Makefile | 1 + drivers/gpu/drm/mediatek/mtk_disp_drv.h | 10 ++ dr

[PATCH v11 6/9] drm/mediatek: add has_dither private data for gamma

From: Yongqiang Niu Not all SoC has dither function in gamma module. Add private data to control this function setting. Signed-off-by: Yongqiang Niu Signed-off-by: Hsin-Yi Wang Reviewed-by: CK Hu --- drivers/gpu/drm/mediatek/mtk_disp_gamma.c | 12 +--- 1 file changed, 9 insertions(+)

[PATCH v11 8/9] soc: mediatek: add mtk mutex support for MT8183

From: Yongqiang Niu Add mtk mutex support for MT8183 SoC. Signed-off-by: Yongqiang Niu Signed-off-by: Hsin-Yi Wang --- drivers/soc/mediatek/mtk-mutex.c | 50 1 file changed, 50 insertions(+) diff --git a/drivers/soc/mediatek/mtk-mutex.c b/drivers/soc/mediatek

[PATCH v11 7/9] drm/mediatek: enable dither function

From: Yongqiang Niu for 5 or 6 bpc panel, we need enable dither function to improve the display quality Signed-off-by: Yongqiang Niu Signed-off-by: Hsin-Yi Wang --- drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c | 44 - 1 file changed, 43 insertions(+), 1 deletion(-) diff --

Re: [PATCH] ath9k: Add separate entry for LED triggers to fix module builds

Krzysztof Kozlowski wrote: > After commit 72cdab808714 ("ath9k: Do not select MAC80211_LEDS by > default") a configuration like: > - MAC80211_LEDS=y > - LEDS_CLASS=m > - NEW_LEDS=y > - ATH9K=y > leads to a build failure: > > /usr/bin/ld: drivers/net/wireless/ath/ath9k/gpio.o: in function

[PATCH v11 9/9] drm/mediatek: add support for mediatek SOC MT8183

From: Yongqiang Niu 1. add ovl private data 2. add rdma private data 3. add gamma privte data 4. add main and external path module for crtc create Signed-off-by: Yongqiang Niu Signed-off-by: Hsin-Yi Wang Reviewed-by: CK Hu --- drivers/gpu/drm/mediatek/mtk_disp_gamma.c | 1 + drivers/gpu/drm

mmotm 2021-01-27-23-30 uploaded

The mm-of-the-moment snapshot 2021-01-27-23-30 has been uploaded to https://www.ozlabs.org/~akpm/mmotm/ mmotm-readme.txt says README for mm-of-the-moment: https://www.ozlabs.org/~akpm/mmotm/ This is a snapshot of my -mm patch queue. Uploaded at random hopefully more than once a week. You

Re: [PATCH v2 5/6] arm64: dts: qcom: Add basic devicetree support for SM8350 SoC

Hi Vinod, On 2021-01-27 21:03, Vinod Koul wrote: Hi Sai, On 27-01-21, 18:37, Sai Prakash Ranjan wrote: Hi Vinod, On 2021-01-27 18:00, Vinod Koul wrote: > + timer { > + compatible = "arm,armv8-timer"; > + interrupts = IRQ_TYPE_LEVEL_LOW)>, > + , > +

Re: [PATCH] ath9k: fix build error with LEDS_CLASS=m

Arnd Bergmann wrote: > From: Arnd Bergmann > > When CONFIG_ATH9K is built-in but LED support is in a loadable > module, both ath9k drivers fails to link: > > x86_64-linux-ld: drivers/net/wireless/ath/ath9k/gpio.o: in function > `ath_deinit_leds': > gpio.c:(.text+0x36): undefined reference to

[PATCH v11 3/9] drm/mediatek: add RDMA fifo size error handle

From: Yongqiang Niu This patch add RDMA fifo size error handle rdma fifo size will not always bigger than the calculated threshold if that case happened, we need set fifo size as the threshold Signed-off-by: Yongqiang Niu Signed-off-by: Hsin-Yi Wang --- drivers/gpu/drm/mediatek/mtk_disp_rdma.

[RFC PATCH 21/34] fs/jfs/jfs_metapage.c: use bio_new in metapage_writepage

Signed-off-by: Chaitanya Kulkarni --- fs/jfs/jfs_metapage.c | 7 +++ 1 file changed, 3 insertions(+), 4 deletions(-) diff --git a/fs/jfs/jfs_metapage.c b/fs/jfs/jfs_metapage.c index 176580f54af9..3fa09d9a0b94 100644 --- a/fs/jfs/jfs_metapage.c +++ b/fs/jfs/jfs_metapage.c @@ -416,12 +416,11 @

Re: [PATCH 3/6] MIPS: Octeon: qspinlock: Flush write buffer

Hi! On 27/01/2021 23:34, Peter Zijlstra wrote: > On Wed, Jan 27, 2021 at 09:36:24PM +0100, Alexander A Sverdlin wrote: >> From: Alexander Sverdlin >> >> Flushing the write buffer brings aroung 10% performace on the tight >> uncontended spinlock loops on Octeon. Refer to commit 500c2e1fdbcc >> ("M

[PATCH v11 0/9] drm/mediatek: add support for mediatek SOC MT8183

This series is based on kernel/git/chunkuang.hu/linux.git mediatek-drm-next The series is tested on a mt8183 krane device. Change since v10 - fix review comments in v9 Change since v9 - change several function to rebase to mediatek-drm-next Change since v8 - fix some review comment in v8 - separ

[PATCH v11 1/9] arm64: dts: mt8183: rename rdma fifo size

From: Yongqiang Niu property name must include only lowercase and '-' Signed-off-by: Yongqiang Niu Signed-off-by: Hsin-Yi Wang Reviewed-by: Chun-Kuang Hu --- arch/arm64/boot/dts/mediatek/mt8183.dtsi | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/arch/arm64/boot/dts/m

RE: kdump always hangs in rcu_barrier() -> wait_for_completion()

> From: Paul E. McKenney > Sent: Thursday, November 26, 2020 3:55 PM > To: Dexuan Cui > Cc: boqun.f...@gmail.com; Ingo Molnar ; > r...@vger.kernel.org; vkuznets ; Michael Kelley > ; linux-kernel@vger.kernel.org > Subject: Re: kdump always hangs in rcu_barrier() -> wait_for_completion() > > On Th

Re: [RFC PATCH 02/34] block: introduce and use bio_new

On 2021/01/28 16:21, Damien Le Moal wrote: > On 2021/01/28 16:12, Chaitanya Kulkarni wrote: >> Introduce bio_new() helper and use it in blk-lib.c to allocate and >> initialize various non-optional or semi-optional members of the bio >> along with bio allocation done with bio_alloc(). Here we also c

[PATCH v11 2/9] arm64: dts: mt8183: refine gamma compatible name

From: Yongqiang Niu mt8183 gamma is different with mt8173 remove mt8173 compatible name for mt8183 gamma Signed-off-by: Yongqiang Niu Signed-off-by: Hsin-Yi Wang --- arch/arm64/boot/dts/mediatek/mt8183.dtsi | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/arch/arm64/boot/

Re: [PATCH 1/6] MIPS: Octeon: Implement __smp_store_release()

Hello Peter, On 27/01/2021 23:32, Peter Zijlstra wrote: >> Link: https://lore.kernel.org/lkml/5644d08d.4080...@caviumnetworks.com/ please, check the discussion pointed by the link above... >> Signed-off-by: Alexander Sverdlin >> --- >> arch/mips/include/asm/barrier.h | 9 + >> 1 file c

Re: [RFC PATCH 28/34] zonefs: use bio_new

On 2021/01/28 16:15, Chaitanya Kulkarni wrote: > Signed-off-by: Chaitanya Kulkarni > --- > fs/zonefs/super.c | 6 ++ > 1 file changed, 2 insertions(+), 4 deletions(-) > > diff --git a/fs/zonefs/super.c b/fs/zonefs/super.c > index ab68e27bb322..620d67965a22 100644 > --- a/fs/zonefs/super.c >

Re: [RESEND PATCH 1/2] KVM: X86: Add support for the emulation of DR6_BUS_LOCK bit

On 28/01/21 08:17, Xiaoyao Li wrote: "Active low" means that the bit is usually 1 and goes to 0 when the condition (such as RTM or bus lock) happens.  For almost all those DR6 bits the value is in fact always 1, but if they are defined in the future it will require no code change. Why not k

[RFC PATCH 24/34] fs/nilfs: use bio_new nilfs_alloc_seg_bio

Signed-off-by: Chaitanya Kulkarni --- fs/nilfs2/segbuf.c | 10 ++ 1 file changed, 2 insertions(+), 8 deletions(-) diff --git a/fs/nilfs2/segbuf.c b/fs/nilfs2/segbuf.c index 1e75417bfe6e..df352cab7a93 100644 --- a/fs/nilfs2/segbuf.c +++ b/fs/nilfs2/segbuf.c @@ -383,15 +383,9 @@ static int

[RFC PATCH 23/34] fs/mpage.c: use bio_new mpage_alloc

Signed-off-by: Chaitanya Kulkarni --- fs/mpage.c | 18 ++ 1 file changed, 6 insertions(+), 12 deletions(-) diff --git a/fs/mpage.c b/fs/mpage.c index 830e6cc2a9e7..01725126e81f 100644 --- a/fs/mpage.c +++ b/fs/mpage.c @@ -68,25 +68,21 @@ static struct bio *mpage_bio_submit(int op

Re: [PATCH] netdevsim: init u64 stats for 32bit hardware

On Thu, Jan 28, 2021 at 3:43 AM Hillf Danton wrote: > > Init the u64 stats in order to avoid the lockdep prints on the 32bit > hardware like FTR this is not just to avoid lockdep prints, but also to prevent very real stalls in production. u64_stats_init initializes seqlock, if the uninitialized s

[RFC PATCH 26/34] xfs: use bio_new in xfs_rw_bdev

Signed-off-by: Chaitanya Kulkarni --- fs/xfs/xfs_bio_io.c | 7 ++- 1 file changed, 2 insertions(+), 5 deletions(-) diff --git a/fs/xfs/xfs_bio_io.c b/fs/xfs/xfs_bio_io.c index e2148f2d5d6b..e4644f22ebe6 100644 --- a/fs/xfs/xfs_bio_io.c +++ b/fs/xfs/xfs_bio_io.c @@ -26,11 +26,8 @@ xfs_rw_bdev

[RFC PATCH 27/34] xfs: use bio_new in xfs_buf_ioapply_map

Signed-off-by: Chaitanya Kulkarni --- fs/xfs/xfs_buf.c | 6 ++ 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/fs/xfs/xfs_buf.c b/fs/xfs/xfs_buf.c index f8400bbd6473..3ff6235e4f94 100644 --- a/fs/xfs/xfs_buf.c +++ b/fs/xfs/xfs_buf.c @@ -1507,12 +1507,10 @@ xfs_buf_ioapply_map(

Re: [RFC PATCH 02/34] block: introduce and use bio_new

On 2021/01/28 16:12, Chaitanya Kulkarni wrote: > Introduce bio_new() helper and use it in blk-lib.c to allocate and > initialize various non-optional or semi-optional members of the bio > along with bio allocation done with bio_alloc(). Here we also calmp the > max_bvecs for bio with BIO_MAX_PAGES

[RFC PATCH 30/34] hfsplus: use bio_new in hfsplus_submit_bio()

Signed-off-by: Chaitanya Kulkarni --- fs/hfsplus/wrapper.c | 5 + 1 file changed, 1 insertion(+), 4 deletions(-) diff --git a/fs/hfsplus/wrapper.c b/fs/hfsplus/wrapper.c index 0350dc7821bf..8341ee6c9b31 100644 --- a/fs/hfsplus/wrapper.c +++ b/fs/hfsplus/wrapper.c @@ -64,10 +64,7 @@ int hfspl

[RFC PATCH 32/34] mm: use bio_new in __swap_writepage

Signed-off-by: Chaitanya Kulkarni --- mm/page_io.c | 6 ++ 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/mm/page_io.c b/mm/page_io.c index 92f7941c6d01..25b321489703 100644 --- a/mm/page_io.c +++ b/mm/page_io.c @@ -342,10 +342,8 @@ int __swap_writepage(struct page *page, struc

[RFC PATCH 34/34] mm: add swap_bio_new common bio helper

Signed-off-by: Chaitanya Kulkarni --- mm/page_io.c | 26 -- 1 file changed, 16 insertions(+), 10 deletions(-) diff --git a/mm/page_io.c b/mm/page_io.c index 7579485ccb5e..cc30c9a0b0a7 100644 --- a/mm/page_io.c +++ b/mm/page_io.c @@ -287,6 +287,17 @@ static void bio_associ

[PATCH] blk-cgroup: Remove obsolete macro

Remove the obsolete 'MAX_KEY_LEN' macro. Signed-off-by: Baolin Wang --- block/blk-cgroup.c | 2 -- 1 file changed, 2 deletions(-) diff --git a/block/blk-cgroup.c b/block/blk-cgroup.c index 4b4fcb5..a317c03 100644 --- a/block/blk-cgroup.c +++ b/block/blk-cgroup.c @@ -32,8 +32,6 @@ #include #i

[RFC PATCH 33/34] mm: use bio_new in swap_readpage

Signed-off-by: Chaitanya Kulkarni --- mm/page_io.c | 8 +++- 1 file changed, 3 insertions(+), 5 deletions(-) diff --git a/mm/page_io.c b/mm/page_io.c index 25b321489703..7579485ccb5e 100644 --- a/mm/page_io.c +++ b/mm/page_io.c @@ -342,7 +342,7 @@ int __swap_writepage(struct page *page, stru

[RFC PATCH 31/34] iomap: use bio_new in iomap_readpage_actor

Signed-off-by: Chaitanya Kulkarni --- fs/iomap/buffered-io.c | 12 +--- 1 file changed, 5 insertions(+), 7 deletions(-) diff --git a/fs/iomap/buffered-io.c b/fs/iomap/buffered-io.c index 16a1e82e3aeb..08d119b62cf5 100644 --- a/fs/iomap/buffered-io.c +++ b/fs/iomap/buffered-io.c @@ -241,6

[RFC PATCH 29/34] power/swap: use bio_new in hib_submit_io

Signed-off-by: Chaitanya Kulkarni --- kernel/power/swap.c | 7 +++ 1 file changed, 3 insertions(+), 4 deletions(-) diff --git a/kernel/power/swap.c b/kernel/power/swap.c index c73f2e295167..e92e36c053a6 100644 --- a/kernel/power/swap.c +++ b/kernel/power/swap.c @@ -271,13 +271,12 @@ static i

[RFC PATCH 25/34] ocfs/cluster: use bio_new in dm-log-writes

Signed-off-by: Chaitanya Kulkarni --- fs/ocfs2/cluster/heartbeat.c | 6 ++ 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/fs/ocfs2/cluster/heartbeat.c b/fs/ocfs2/cluster/heartbeat.c index 0179a73a3fa2..b34518036446 100644 --- a/fs/ocfs2/cluster/heartbeat.c +++ b/fs/ocfs2/cluste

Re: [RESEND PATCH 1/2] KVM: X86: Add support for the emulation of DR6_BUS_LOCK bit

On 1/27/2021 6:04 PM, Paolo Bonzini wrote: On 27/01/21 04:41, Xiaoyao Li wrote: On 1/27/2021 12:31 AM, Paolo Bonzini wrote: On 08/01/21 07:49, Chenyi Qiang wrote: To avoid breaking the CPUs without bus lock detection, activate the DR6_BUS_LOCK bit (bit 11) conditionally in DR6_FIXED_1 bits. T

[RFC PATCH 28/34] zonefs: use bio_new

Signed-off-by: Chaitanya Kulkarni --- fs/zonefs/super.c | 6 ++ 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/fs/zonefs/super.c b/fs/zonefs/super.c index ab68e27bb322..620d67965a22 100644 --- a/fs/zonefs/super.c +++ b/fs/zonefs/super.c @@ -661,6 +661,7 @@ static const struct i

[RFC PATCH 22/34] fs/jfs/jfs_metapage.c: use bio_new in metapage_readpage

Signed-off-by: Chaitanya Kulkarni --- fs/jfs/jfs_metapage.c | 8 +++- 1 file changed, 3 insertions(+), 5 deletions(-) diff --git a/fs/jfs/jfs_metapage.c b/fs/jfs/jfs_metapage.c index 3fa09d9a0b94..c7be3a2773bf 100644 --- a/fs/jfs/jfs_metapage.c +++ b/fs/jfs/jfs_metapage.c @@ -495,13 +495,11

[RFC PATCH 15/34] fscrypt: use bio_new in fscrypt_zeroout_range

Signed-off-by: Chaitanya Kulkarni --- fs/crypto/bio.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) diff --git a/fs/crypto/bio.c b/fs/crypto/bio.c index b048a0e38516..20dab9bdf098 100644 --- a/fs/crypto/bio.c +++ b/fs/crypto/bio.c @@ -148,12 +148,11 @@ int fscrypt_zeroout_range(cons

[RFC PATCH 20/34] fs/jfs/jfs_logmgr.c: use bio_new in lbmStartIO

Signed-off-by: Chaitanya Kulkarni --- fs/jfs/jfs_logmgr.c | 6 ++ 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/fs/jfs/jfs_logmgr.c b/fs/jfs/jfs_logmgr.c index 4481f3e33a3f..bb25737d52f6 100644 --- a/fs/jfs/jfs_logmgr.c +++ b/fs/jfs/jfs_logmgr.c @@ -2121,16 +2121,14 @@ static

[RFC PATCH 12/34] scsi: target/iblock: use bio_new

Signed-off-by: Chaitanya Kulkarni --- drivers/target/target_core_iblock.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) diff --git a/drivers/target/target_core_iblock.c b/drivers/target/target_core_iblock.c index 8ed93fd205c7..f1264918aee1 100644 --- a/drivers/target/target_core_ib

[RFC PATCH 13/34] block: use bio_new in __blkdev_direct_IO

Signed-off-by: Chaitanya Kulkarni --- fs/block_dev.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/fs/block_dev.c b/fs/block_dev.c index 9d4b1a884d76..f3e3247894d7 100644 --- a/fs/block_dev.c +++ b/fs/block_dev.c @@ -367,6 +367,8 @@ __blkdev_direct_IO(struct kiocb *ioc

[RFC PATCH 08/34] dm-zoned: use bio_new in get_mblock_slow

Signed-off-by: Chaitanya Kulkarni --- drivers/md/dm-zoned-metadata.c | 6 ++ 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/drivers/md/dm-zoned-metadata.c b/drivers/md/dm-zoned-metadata.c index 039d17b28938..e6252f48a49c 100644 --- a/drivers/md/dm-zoned-metadata.c +++ b/drivers

[RFC PATCH 09/34] dm-zoned: use bio_new in dmz_write_mblock

Signed-off-by: Chaitanya Kulkarni --- drivers/md/dm-zoned-metadata.c | 6 ++ 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/drivers/md/dm-zoned-metadata.c b/drivers/md/dm-zoned-metadata.c index e6252f48a49c..fa0ee732c6e9 100644 --- a/drivers/md/dm-zoned-metadata.c +++ b/drivers

[RFC PATCH 03/34] drdb: use bio_new in drdb

Signed-off-by: Chaitanya Kulkarni --- drivers/block/drbd/drbd_receiver.c | 6 ++ 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/drivers/block/drbd/drbd_receiver.c b/drivers/block/drbd/drbd_receiver.c index 09c86ef3f0fd..e1cd3427b28b 100644 --- a/drivers/block/drbd/drbd_receive

[RFC PATCH 04/34] drdb: use bio_new() in submit_one_flush

Signed-off-by: Chaitanya Kulkarni --- drivers/block/drbd/drbd_receiver.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/drivers/block/drbd/drbd_receiver.c b/drivers/block/drbd/drbd_receiver.c index e1cd3427b28b..b86bbf725cbd 100644 --- a/drivers/block/drbd/drbd_receive

[PATCH v2 0/3] handle large user and group ID for isofs and udf

From: BingJing Chang The uid/gid (unsigned int) of a domain user may be larger than INT_MAX. The parse_options of isofs and udf will return 0, and mount will fail with -EINVAL. These patches try to handle large user and group ID. BingJing Chang (3): parser: add unsigned int parser isofs: han

[PATCH v3 17/25] mm/filemap: Convert end_page_writeback to end_folio_writeback

Add a wrapper function for users that are not yet converted to folios. With a distro config, this function shrinks from 213 bytes to 105 bytes due to elimination of repeated calls to compound_head(). Signed-off-by: Matthew Wilcox (Oracle) --- include/linux/pagemap.h | 6 +- mm/filemap.c

[RFC PATCH 01/34] block: move common code into blk_next_bio()

blk_next_bio() is the central function which allocates the bios for discard, write-same, write-zeroes and zone-mgmt. The initialization of various bio members is duplicated in disacrd, write-same, write-zeores. In this preparation patch we add bdev, sector, op, and opf arguments to the blk_next_bio

[PATCH] media/pci: fix spelling typo of frimware

From: dingsenjie frimware -> firmware Signed-off-by: dingsenjie --- drivers/media/pci/saa7164/saa7164.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/media/pci/saa7164/saa7164.h b/drivers/media/pci/saa7164/saa7164.h index 2801a2b..4b4eb15 100644 --- a/drivers/med

[PATCH v3 19/25] mm: Add wait_for_stable_folio and wait_on_folio_writeback

Add compatibility wrappers for code which has not yet been converted to use folios. Signed-off-by: Matthew Wilcox (Oracle) --- include/linux/pagemap.h | 12 ++-- mm/page-writeback.c | 27 +-- 2 files changed, 23 insertions(+), 16 deletions(-) diff --git a/inc

[PATCH v3 21/25] mm: Convert lock_page_or_retry to lock_folio_or_retry

There's already a hidden compound_head() call in trylock_page(), so just make it explicit in the caller, which may later have a folio for its own reasons. This saves a call to compound_head() inside __lock_page_or_retry(). Signed-off-by: Matthew Wilcox (Oracle) --- include/linux/pagemap.h | 10

[PATCH v3 23/25] mm: Convert test_clear_page_writeback to test_clear_folio_writeback

The one caller of test_clear_page_writeback() already has a folio, so make it clear that test_clear_page_writeback() operates on the entire folio. Signed-off-by: Matthew Wilcox (Oracle) --- include/linux/page-flags.h | 2 +- mm/filemap.c | 2 +- mm/page-writeback.c| 18 ++

[PATCH v3 14/25] mm: Add lock_folio

This is like lock_page() but for use by callers who know they have a folio. Convert __lock_page() to be __lock_folio(). This saves one call to compound_head() per contended call to lock_page(). Signed-off-by: Matthew Wilcox (Oracle) --- include/linux/pagemap.h | 21 +++-- mm/fil

[PATCH v3 25/25] cachefiles: Switch to wait_page_key

Cachefiles was relying on wait_page_key and wait_bit_key being the same layout, which is fragile. Now that wait_page_key is exposed in the pagemap.h header, we can remove that fragility. Also switch it to use the folio directly instead of the page. Signed-off-by: Matthew Wilcox (Oracle) --- fs

Re: [PATCH v18 01/10] fs/ntfs3: Add headers and misc files

On Fri, Jan 22, 2021 at 02:55:30PM +, Mark Harmstone wrote: > On 22/1/21 2:01 pm, Konstantin Komarov wrote: > > diff --git a/fs/ntfs3/upcase.c b/fs/ntfs3/upcase.c > > +static inline u16 upcase_unicode_char(const u16 *upcase, u16 chr) > > +{ > > + if (chr < 'a') > > + return chr; >

[PATCH v3 16/25] mm: Convert lock_page_async to lock_folio_async

When the caller already has a folio, this saves a call to compound_head(). If not, the call to compound_head() is merely moved. Signed-off-by: Matthew Wilcox (Oracle) --- fs/io_uring.c | 2 +- include/linux/pagemap.h | 14 +++--- mm/filemap.c| 12 ++-- 3 fi

[PATCH v3 18/25] mm: Convert wait_on_page_bit to wait_on_folio_bit

We must deal with folios here otherwise we'll get the wrong waitqueue and fail to receive wakeups. Signed-off-by: Matthew Wilcox (Oracle) --- fs/afs/write.c | 31 --- include/linux/pagemap.h | 19 +-- mm/filemap.c| 54 ++---

Re: [PATCH v5] arm64: Enable perf events based hard lockup detector

Hi Will, On Tue, 26 Jan 2021 at 19:48, Will Deacon wrote: > > Hi Sumit, > > On Fri, Jan 15, 2021 at 05:31:41PM +0530, Sumit Garg wrote: > > With the recent feature added to enable perf events to use pseudo NMIs > > as interrupts on platforms which support GICv3 or later, its now been > > possible

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