Re: [debian bug:883345] vhci-hcd: kernel oops when attaching a mass storage on client side of usbip

On Tuesday, 5 December 2017 9:39:33 IST Greg KH wrote: > On Mon, Dec 04, 2017 at 10:05:45PM +0200, borissh1...@gmail.com wrote: > > Hi , > > > > vhci-hcd kernel oops when attaching a mass storage on 4.13.13. > > > > When I try to attach a mass storage device to a vhci-hcd, it generates an > >

Re: Several issues on AMD Promontory [1022:43bb]

> On 5 Dec 2017, at 4:52 PM, Joe Lee wrote: > > Hi Kai-Hen, > I want to know what this kernel version? v4.15-rc2. The issue happens on all kernel version though. > > >All three issue can still be reproduced with or without your patch, > >"[PATCH v8] xhci : AMD

Re: [PATCH v4] usb: xhci: allow imod-interval to be configurable

On 05.12.2017 04:54, Adam Wallis wrote: On 12/4/2017 9:15 PM, Chunfeng Yun wrote: On Mon, 2017-12-04 at 09:27 -0500, Adam Wallis wrote: The xHCI driver currently has the IMOD set to 160, which translates to an IMOD interval of 40,000ns (160 * 250)ns Commit 0cbd4b34cda9 ("xhci: mediatek:

Re: [PATCH v9] xhci : AMD Promontory USB disable port support

On Tue, Dec 05, 2017 at 05:20:56PM +0800, Joe Lee wrote: > Dear Greg: > I am sorry if this has caused you any inconvenience. > I can't understand what is a good line-wrapping. > Can you check the line-wrapping for me? > > > For AMD Promontory xHCI host, > > although you can disable USB 2.0 ports

Re: [PATCH v3 07/16] phy: qcom-qusb2: Add support for different register layouts

On 11/21/2017 02:53 PM, Manu Gautam wrote: New version of QUSB2 PHY has some registers offset changed. Add support to have register layout for a target and update the same in phy_configuration. Signed-off-by: Manu Gautam --- drivers/phy/qualcomm/phy-qcom-qusb2.c |

Re: [PATCH 21/45] usb: typec: remove duplicate includes

On 12/04/2017 06:04 PM, Pravin Shedge wrote: These duplicate includes have been found with scripts/checkincludes.pl but they have been removed manually to avoid removing false positives. Signed-off-by: Pravin Shedge Reviewed-by: Guenter Roeck

[PATCH] musb-fixes for v4.15-rc3

Hi Greg, Here is only one musb patch for the next v4.15 -rc, which fixes the babble condition handling for DA8xx. Please let me know if any change is needed. Thanks, -Bin. --- Bin Liu (1): usb: musb: da8xx: fix babble condition handling drivers/usb/musb/da8xx.c | 10 +- 1 file

[PATCH] usb: musb: da8xx: fix babble condition handling

When babble condition happens, the musb controller might automatically turns off VBUS. On DA8xx platform, the controller generates drvvbus interrupt for turning off VBUS along with the babble interrupt. In this case, we should handle the babble interrupt first and recover from the babble

[PATCH 1/4] uwb: Delete an error message for a failed memory allocation in hwarc_probe()

From: Markus Elfring Date: Tue, 5 Dec 2017 20:30:50 +0100 Omit an extra message for a memory allocation failure in this function. This issue was detected by using the Coccinelle software. Signed-off-by: Markus Elfring ---

[PATCH] USB: uas and storage: Add US_FL_BROKEN_FUA for another JMicron JMS567 ID

There is another JMS567-based USB3 UAS enclosure (152d:0578) that fails with the following error: [sda] tag#0 FAILED Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE [sda] tag#0 Sense Key : Illegal Request [current] [sda] tag#0 Add. Sense: Invalid field in cdb The issue occurs both with UAS

[PATCH 2/4] uwb: Delete an error message for a failed memory allocation in whcrc_probe()

From: Markus Elfring Date: Tue, 5 Dec 2017 20:43:31 +0100 Omit an extra message for a memory allocation failure in this function. This issue was detected by using the Coccinelle software. Signed-off-by: Markus Elfring ---

[PATCH v1 8/8] lsusb: Dump USB3 BOS Configuration Summary Descriptor.

--- lsusb.c | 6 ++ 1 file changed, 6 insertions(+) diff --git a/lsusb.c b/lsusb.c index c9d0d74..ddc19e0 100644 --- a/lsusb.c +++ b/lsusb.c @@ -75,6 +75,7 @@ #define USB_DC_PLATFORM0x05 #define USB_DC_SUPERSPEEDPLUS 0x0a #define USB_DC_BILLBOARD

[PATCH v1 4/8] lsusb: Switch to descriptor-definition based dump for UAC1 and UAC2.

This gives us more consistency in handling of incorrect descriptor buffer lengths, and improves whitespace/alignment consistency. --- Makefile.am | 2 + lsusb.c | 779 +--- 2 files changed, 63 insertions(+), 718 deletions(-) diff

Re: [PATCH] xhci: Fix front USB ports on ASUS PRIME B350M-A

[+cc Rafael, linux-pm] On Wed, Dec 06, 2017 at 12:22:42AM +0800, Kai-Heng Feng wrote: > The board in question has three XHCI HCs: > 02:00.0 USB controller [0c03]: Advanced Micro Devices, Inc. [AMD] USB 3.1 > XHCI Controller [1022:43bb] (rev 02) > 04:00.0 USB controller [0c03]: ASMedia Technology

usb device implemented with functionfs - must app run as root?

I have implemented a USB device using functionfs. A colleague now says our app must run as a normal user, not as root. I tried it and it does not work. The problem is this - the endpoint files created by the OS are owned by root. These ep files are created after I write the descriptors and

Re: [PATCH 1/2] usbip: Delete an error message for a failed memory allocation in two functions

On 12/05/2017 02:49 PM, SF Markus Elfring wrote: > From: Markus Elfring > Date: Tue, 5 Dec 2017 22:25:38 +0100 > > Omit an extra message for a memory allocation failure in these functions. > > This issue was detected by using the Coccinelle software. Please

Re: [PATCH 2/2] usbip: Use common error handling code in stub_recv_cmd_submit()

On 12/05/2017 02:52 PM, SF Markus Elfring wrote: > From: Markus Elfring > Date: Tue, 5 Dec 2017 22:40:30 +0100 > > Add a jump target so that a bit of exception handling can be better reused > at the end of this function. > > Signed-off-by: Markus Elfring

[PATCH 2/2] usbip: Use common error handling code in stub_recv_cmd_submit()

From: Markus Elfring Date: Tue, 5 Dec 2017 22:40:30 +0100 Add a jump target so that a bit of exception handling can be better reused at the end of this function. Signed-off-by: Markus Elfring --- drivers/usb/usbip/stub_rx.c | 22

[PATCH 0/2] usbip: Adjustments for two function implementations

From: Markus Elfring Date: Tue, 5 Dec 2017 22:44:55 +0100 Two update suggestions were taken into account from static source code analysis. Markus Elfring (2): Delete an error message for a failed memory allocation in two functions Use common error handling

[PATCH 1/2] usbip: Delete an error message for a failed memory allocation in two functions

From: Markus Elfring Date: Tue, 5 Dec 2017 22:25:38 +0100 Omit an extra message for a memory allocation failure in these functions. This issue was detected by using the Coccinelle software. Signed-off-by: Markus Elfring ---

[PATCH 0/4] UWB: Adjustments for four function implementations

From: Markus Elfring Date: Tue, 5 Dec 2017 21:17:55 +0100 A few update suggestions were taken into account from static source code analysis. Markus Elfring (4): Delete an error message for a failed memory allocation in hwarc_probe() Delete an error message for

[PATCH 4/4] uwb/i1480/dfu/usb: Delete two error messages for a failed memory allocation in i1480_usb_probe()

From: Markus Elfring Date: Tue, 5 Dec 2017 21:07:47 +0100 Omit extra messages for a memory allocation failure in this function. This issue was detected by using the Coccinelle software. Signed-off-by: Markus Elfring ---

[PATCH 3/4] uwb/i1480/dfu/mac: Delete an error message for a failed memory allocation in fw_hdrs_load()

From: Markus Elfring Date: Tue, 5 Dec 2017 21:00:03 +0100 Omit an extra message for a memory allocation failure in this function. This issue was detected by using the Coccinelle software. Signed-off-by: Markus Elfring ---

[PATCH v1 2/8] lsusb: Add declarative definitions for UAC1 and UAC2 descriptors.

These descriptor definitions descibe how raw descriptor data should be interpreted. --- desc-defs.c | 647 desc-defs.h | 153 ++ 2 files changed, 800 insertions(+) create mode 100644 desc-defs.c create mode 100644

[PATCH v1 6/8] lsusb: Add initial support for UAC3.

--- lsusb.c | 52 ++-- 1 file changed, 34 insertions(+), 18 deletions(-) diff --git a/lsusb.c b/lsusb.c index ac6e061..c9d0d74 100644 --- a/lsusb.c +++ b/lsusb.c @@ -106,6 +106,11 @@ #define USB_AUDIO_CLASS_2 0x20 #endif +/* USB

Re: [PATCH v1 5/8] lsusb: Add descriptor definitions for UAC3.

On Tue, Dec 05, 2017 at 04:14:28PM +, Michael Drake wrote: > --- > desc-defs.c | 277 > > desc-defs.h | 3 + > desc-dump.c | 5 ++ > 3 files changed, 270 insertions(+), 15 deletions(-) We need some kind of changelog text here

Re: [PATCH v1 4/8] lsusb: Switch to descriptor-definition based dump for UAC1 and UAC2.

On Tue, Dec 05, 2017 at 04:14:27PM +, Michael Drake wrote: > This gives us more consistency in handling of incorrect descriptor > buffer lengths, and improves whitespace/alignment consistency. > --- > Makefile.am | 2 + > lsusb.c | 779 >

[PATCH v1 5/8] lsusb: Add descriptor definitions for UAC3.

--- desc-defs.c | 277 desc-defs.h | 3 + desc-dump.c | 5 ++ 3 files changed, 270 insertions(+), 15 deletions(-) diff --git a/desc-defs.c b/desc-defs.c index 6bc558e..3b5ea1e 100644 --- a/desc-defs.c +++ b/desc-defs.c @@ -61,6

Re: [PATCH v3 1/2] usb: dwc2: host: Don't retry NAKed transactions right away

Hi Felipe, Hi John, Am 30.10.2017 um 18:08 schrieb Douglas Anderson: On rk3288-veyron devices on Chrome OS it was found that plugging in an Arduino-based USB device could cause the system to lockup, especially if the CPU Frequency was at one of the slower operating points (like 100 MHz / 200

Re: [PATCH v1 0/8] lsusb: Add initial support for USB Audio Class 3

On Tue, Dec 05, 2017 at 04:14:23PM +, Michael Drake wrote: > This adds a new way of dumping descriptors, which splits the knowledge > of how to interpret descriptor data from the actual dumping. This has > two advantages: > > 1. It is easy to add support for new descriptors, since they are

[PATCH v1 0/8] lsusb: Add initial support for USB Audio Class 3

This adds a new way of dumping descriptors, which splits the knowledge of how to interpret descriptor data from the actual dumping. This has two advantages: 1. It is easy to add support for new descriptors, since they are now simple definitions that resemble the tables in the USB

[PATCH v1 1/8] lsusb: Split subtype mapping out of AudioControl interface handling.

UAC1 and UAC2 have different different meanings for the same subtype value. This splits the subtype mapping out. --- lsusb.c | 100 ++-- 1 file changed, 79 insertions(+), 21 deletions(-) diff --git a/lsusb.c b/lsusb.c index

[PATCH v1 7/8] lsusb: Add descriptor definition for USB3 BOS Configuration Summary.

--- desc-defs.c | 16 desc-defs.h | 3 +++ 2 files changed, 19 insertions(+) diff --git a/desc-defs.c b/desc-defs.c index 3b5ea1e..885e3fa 100644 --- a/desc-defs.c +++ b/desc-defs.c @@ -892,3 +892,19 @@ const struct desc * const desc_audio_as_isochronous_audio_data_endpoint[3]

[PATCH v1 3/8] lsusb: Add code to dump descriptor data using descriptor definition.

This adds a new way of dumping descriptors. It takes the descriptor data to be dumped, and a descriptor definition as input. The descriptor definition takes the form of a NULL terminated array of descriptor field definitions. These definitions describe how the raw descriptor data buffer should

Re: [PATCH v1 8/8] lsusb: Dump USB3 BOS Configuration Summary Descriptor.

On Tue, Dec 05, 2017 at 04:14:31PM +, Michael Drake wrote: > --- > lsusb.c | 6 ++ > 1 file changed, 6 insertions(+) And here. > > diff --git a/lsusb.c b/lsusb.c > index c9d0d74..ddc19e0 100644 > --- a/lsusb.c > +++ b/lsusb.c > @@ -75,6 +75,7 @@ > #define USB_DC_PLATFORM

Re: [PATCH v1 7/8] lsusb: Add descriptor definition for USB3 BOS Configuration Summary.

On Tue, Dec 05, 2017 at 04:14:30PM +, Michael Drake wrote: > --- > desc-defs.c | 16 > desc-defs.h | 3 +++ > 2 files changed, 19 insertions(+) Same here, some text please. -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to

Re: [PATCH v1 6/8] lsusb: Add initial support for UAC3.

On Tue, Dec 05, 2017 at 04:14:29PM +, Michael Drake wrote: > --- > lsusb.c | 52 ++-- > 1 file changed, 34 insertions(+), 18 deletions(-) Again, some changelog text please. -- To unsubscribe from this list: send the line "unsubscribe linux-usb"

[PATCH] xhci: Fix front USB ports on ASUS PRIME B350M-A

The board in question has three XHCI HCs: 02:00.0 USB controller [0c03]: Advanced Micro Devices, Inc. [AMD] USB 3.1 XHCI Controller [1022:43bb] (rev 02) 04:00.0 USB controller [0c03]: ASMedia Technology Inc. Device [1b21:1343] 0a:00.3 USB controller [0c03]: Advanced Micro Devices, Inc. [AMD] USB3

Re: [PATCH v1 3/8] lsusb: Add code to dump descriptor data using descriptor definition.

On Tue, Dec 05, 2017 at 04:14:26PM +, Michael Drake wrote: > This adds a new way of dumping descriptors. It takes the descriptor > data to be dumped, and a descriptor definition as input. > > The descriptor definition takes the form of a NULL terminated array > of descriptor field

[PATCH] tools/usbip: fixes build with musl libc toolchain

From: Julien BOIBESSOT Indeed musl doesn't define old SIGCLD signal name but only new one SIGCHLD. SIGCHLD is the new POSIX name for that signal so it doesn't change anything on other libcs. This fixes this kind of build error: usbipd.c: In function ‘set_signal’:

Re: [PATCH v1 1/8] lsusb: Split subtype mapping out of AudioControl interface handling.

On Tue, Dec 05, 2017 at 04:14:24PM +, Michael Drake wrote: > UAC1 and UAC2 have different different meanings for the same subtype > value. This splits the subtype mapping out. > --- Minor nit, can you sign-off on your patches like kernel patches have? That way I know you are contributing

Re: [PATCH v1 2/8] lsusb: Add declarative definitions for UAC1 and UAC2 descriptors.

On Tue, Dec 05, 2017 at 04:14:25PM +, Michael Drake wrote: > These descriptor definitions descibe how raw descriptor data > should be interpreted. > --- > desc-defs.c | 647 > > desc-defs.h | 153 ++ > 2 files changed,

[PATCH v4 54/73] nilfs2: Convert to XArray

From: Matthew Wilcox I'm not 100% convinced that the rewrite of nilfs_copy_back_pages is correct, but it will at least have different bugs from the current version. Signed-off-by: Matthew Wilcox --- fs/nilfs2/btnode.c | 37

[PATCH v4 70/73] xfs: Convert pag_ici_root to XArray

From: Matthew Wilcox Rename pag_ici_root to pag_ici_xa and use XArray APIs instead of radix tree APIs. Shorter code, typechecking on tag numbers, better error checking in xfs_reclaim_inode(), and eliminates a call to radix_tree_preload(). Signed-off-by: Matthew Wilcox

[PATCH v4 61/73] dax: Convert dax_writeback_one to XArray

From: Matthew Wilcox Likewise easy Signed-off-by: Matthew Wilcox --- fs/dax.c | 17 +++-- 1 file changed, 7 insertions(+), 10 deletions(-) diff --git a/fs/dax.c b/fs/dax.c index 66f6c4ea18f7..7bd94f1b61d0 100644 --- a/fs/dax.c +++

[PATCH v4 68/73] brd: Convert to XArray

From: Matthew Wilcox Convert brd_pages from a radix tree to an XArray. Simpler and smaller code; in particular another user of radix_tree_preload is eliminated. Signed-off-by: Matthew Wilcox --- drivers/block/brd.c | 87

[PATCH v4 67/73] vmalloc: Convert to XArray

From: Matthew Wilcox The radix tree of vmap blocks is simpler to express as an XArray. Saves a couple of hundred bytes of text and eliminates a user of the radix tree preload API. Signed-off-by: Matthew Wilcox --- mm/vmalloc.c | 39

[PATCH v4 60/73] dax: Convert __dax_invalidate_mapping_entry to XArray

From: Matthew Wilcox Simple now that we already have an xa_state! Signed-off-by: Matthew Wilcox --- fs/dax.c | 10 +- 1 file changed, 5 insertions(+), 5 deletions(-) diff --git a/fs/dax.c b/fs/dax.c index ad984dece12e..66f6c4ea18f7

[PATCH v4 59/73] dax: More XArray conversion

From: Matthew Wilcox This time, we want to convert get_unlocked_mapping_entry() to use the XArray. That has a ripple effect, causing us to change the waitqueues to hash on the address of the xarray rather than the address of the mapping (functionally equivalent), and

[PATCH v4 64/73] dax: Convert grab_mapping_entry to XArray

From: Matthew Wilcox Signed-off-by: Matthew Wilcox --- fs/dax.c | 98 +--- 1 file changed, 26 insertions(+), 72 deletions(-) diff --git a/fs/dax.c b/fs/dax.c index

[PATCH v4 40/73] pagevec: Use xa_tag_t

From: Matthew Wilcox Removes sparse warnings. Signed-off-by: Matthew Wilcox --- fs/btrfs/extent_io.c| 4 ++-- fs/ext4/inode.c | 2 +- fs/f2fs/data.c | 2 +- fs/gfs2/aops.c | 2 +- include/linux/pagevec.h | 8

[PATCH v4 37/73] mm: Convert huge_memory to XArray

From: Matthew Wilcox Quite a straightforward conversion. Signed-off-by: Matthew Wilcox --- mm/huge_memory.c | 19 --- 1 file changed, 8 insertions(+), 11 deletions(-) diff --git a/mm/huge_memory.c b/mm/huge_memory.c index

[PATCH v4 28/73] page cache: Remove stray radix comment

From: Matthew Wilcox Signed-off-by: Matthew Wilcox --- mm/filemap.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/mm/filemap.c b/mm/filemap.c index 9e6158cfbaeb..79d0731b8762 100644 --- a/mm/filemap.c +++ b/mm/filemap.c @@

[PATCH v4 44/73] shmem: Convert shmem_tag_pins to XArray

From: Matthew Wilcox Simplify the locking by taking the spinlock while we walk the tree on the assumption that many acquires and releases of the lock will be worse than holding the lock for a (potentially) long time. We could replicate the same locking behaviour with the

[PATCH v4 41/73] shmem: Convert replace to XArray

From: Matthew Wilcox shmem_radix_tree_replace() is renamed to shmem_xa_replace() and converted to use the XArray API. Signed-off-by: Matthew Wilcox --- mm/shmem.c | 22 -- 1 file changed, 8 insertions(+), 14 deletions(-)

[PATCH v4 06/73] xarray: Add definition of struct xarray

From: Matthew Wilcox This is a direct replacement for struct radix_tree_root. Some of the struct members have changed name; convert those, and use a #define so that radix_tree users continue to work without change. Signed-off-by: Matthew Wilcox

[PATCH v4 08/73] xarray: Add documentation

From: Matthew Wilcox This is documentation on how to use the XArray, not details about its internal implementation. Signed-off-by: Matthew Wilcox --- Documentation/core-api/index.rst | 1 + Documentation/core-api/xarray.rst | 281

[PATCH v4 69/73] xfs: Convert m_perag_tree to XArray

From: Matthew Wilcox Getting rid of the m_perag_lock lets us also get rid of the call to radix_tree_preload(). This is a relatively naive conversion; we could improve performance over the radix tree implementation by passing around xa_state pointers instead of indices,

[PATCH v4 22/73] page cache: Convert hole search to XArray

From: Matthew Wilcox The page cache offers the ability to search for a miss in the previous or next N locations. Rather than teach the XArray about the page cache's definition of a miss, use xas_prev() and xas_next() to search the page array. This should be more

[PATCH v4 51/73] btrfs: Convert page cache to XArray

From: Matthew Wilcox Signed-off-by: Matthew Wilcox --- fs/btrfs/compression.c | 4 +--- fs/btrfs/extent_io.c | 6 ++ 2 files changed, 3 insertions(+), 7 deletions(-) diff --git a/fs/btrfs/compression.c b/fs/btrfs/compression.c index

[PATCH v4 47/73] shmem: Convert shmem_alloc_hugepage to XArray

From: Matthew Wilcox xa_find() is a slightly easier API to use than radix_tree_gang_lookup_slot() because it contains its own RCU locking. Signed-off-by: Matthew Wilcox --- mm/shmem.c | 13 +++-- 1 file changed, 3 insertions(+), 10

[PATCH v4 35/73] mm: Convert __do_page_cache_readahead to XArray

From: Matthew Wilcox This one is trivial. Signed-off-by: Matthew Wilcox --- mm/readahead.c | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) diff --git a/mm/readahead.c b/mm/readahead.c index f64b31b3a84a..66bcaffd47f0 100644 ---

[PATCH v4 33/73] mm: Convert delete_from_swap_cache to XArray

From: Matthew Wilcox Both callers of __delete_from_swap_cache have the swp_entry_t already, so pass that in to make constructing the XA_STATE easier. Signed-off-by: Matthew Wilcox --- include/linux/swap.h | 5 +++-- mm/swap_state.c | 24

[PATCH v4 34/73] mm: Convert cgroup writeback to XArray

From: Matthew Wilcox This is a fairly naive conversion, leaving in place the GFP_ATOMIC allocation. By switching the locking around, we could use GFP_KERNEL and probably simplify the error handling. Signed-off-by: Matthew Wilcox ---

[PATCH v4 30/73] mm: Convert workingset to XArray

From: Matthew Wilcox We construct a fake XA_STATE and use it to delete the node with xa_store() rather than adding a special function for this unique use case. Signed-off-by: Matthew Wilcox --- include/linux/swap.h | 4 ++-- mm/workingset.c

[PATCH v4 31/73] mm: Convert truncate to XArray

From: Matthew Wilcox This is essentially xa_cmpxchg() with the locking handled above us, and it doesn't have to handle replacing a NULL entry. Signed-off-by: Matthew Wilcox --- mm/truncate.c | 15 ++- 1 file changed, 6 insertions(+),

[PATCH v4 27/73] page cache: Convert delete_batch to XArray

From: Matthew Wilcox Rename the function from page_cache_tree_delete_batch to just page_cache_delete_batch. Signed-off-by: Matthew Wilcox --- mm/filemap.c | 21 +++-- 1 file changed, 7 insertions(+), 14 deletions(-) diff --git

[PATCH v4 26/73] page cache: Convert page cache lookups to XArray

From: Matthew Wilcox Introduce page_cache_pin() to factor out the common logic between the various lookup routines: find_get_entry find_get_entries find_get_pages_range find_get_pages_contig find_get_pages_range_tag find_get_entries_tag filemap_map_pages By using the

[PATCH v4 00/73] XArray version 4

From: Matthew Wilcox I looked through some notes and decided this was version 4 of the XArray. Last posted two weeks ago, this version includes a *lot* of changes. I'd like to thank Dave Chinner for his feedback, encouragement and distracting ideas for improvement, which

[PATCH v4 32/73] mm: Convert add_to_swap_cache to XArray

From: Matthew Wilcox Combine __add_to_swap_cache and add_to_swap_cache into one function since there is no more need to preload. Signed-off-by: Matthew Wilcox --- mm/swap_state.c | 93 ++--- 1

[PATCH v4 20/73] idr: Convert to XArray

From: Matthew Wilcox The IDR distinguishes between unallocated entries (read as NULL) and entries where the user has chosen to store NULL. The radix tree was modified to consider NULL entries which had tag 0 _clear_ as being allocated, but it added a lot of complexity.

[PATCH v4 02/73] xarray: Add the xa_lock to the radix_tree_root

From: Matthew Wilcox This results in no change in structure size on 64-bit x86 as it fits in the padding between the gfp_t and the void *. Signed-off-by: Matthew Wilcox --- fs/f2fs/gc.c | 2 +- include/linux/idr.h|

[PATCH v4 73/73] usb: Convert xhci-mem to XArray

From: Matthew Wilcox The XArray API is a slightly better fit for xhci_insert_segment_mapping() than the radix tree API was. Signed-off-by: Matthew Wilcox --- drivers/usb/host/xhci-mem.c | 70 +

[PATCH v4 66/73] page cache: Finish XArray conversion

From: Matthew Wilcox With no more radix tree API users left, we can drop the GFP flags and use xa_init() instead of INIT_RADIX_TREE(). Signed-off-by: Matthew Wilcox --- fs/inode.c | 2 +- include/linux/fs.h | 2 +- mm/swap_state.c| 2

[PATCH v4 65/73] dax: Fix sparse warning

From: Matthew Wilcox sparse doesn't know that follow_pte_pmd conditionally acquires the ptl, so add an annotation to let it know what's going on. Signed-off-by: Matthew Wilcox --- fs/dax.c | 1 + 1 file changed, 1 insertion(+) diff --git

[PATCH v4 15/73] xarray: Add xa_get_entries, xa_get_tagged and xa_get_maybe_tag

From: Matthew Wilcox These functions allow a range of xarray entries to be extracted into a compact normal array. Signed-off-by: Matthew Wilcox --- include/linux/xarray.h | 27 lib/xarray.c | 88

[PATCH v4 57/73] dax: Convert dax_unlock_mapping_entry to XArray

From: Matthew Wilcox Replace slot_locked() with dax_locked() and inline unlock_slot() into its only caller. Signed-off-by: Matthew Wilcox --- fs/dax.c | 50 -- 1 file changed, 16 insertions(+), 34

[PATCH v4 52/73] fs: Convert buffer to XArray

From: Matthew Wilcox Mostly comment fixes, but one use of __xa_set_tag. Signed-off-by: Matthew Wilcox --- fs/buffer.c | 14 +++--- 1 file changed, 7 insertions(+), 7 deletions(-) diff --git a/fs/buffer.c b/fs/buffer.c index

[PATCH v4 18/73] xarray: Add xas_create_range

From: Matthew Wilcox This hopefully temporary function is useful for users who have not yet been converted to multi-index entries. Signed-off-by: Matthew Wilcox --- include/linux/xarray.h | 2 ++ lib/xarray.c | 22

[PATCH v4 21/73] ida: Convert to XArray

From: Matthew Wilcox Use the xarray infrstructure like we used the radix tree infrastructure. This lets us get rid of idr_get_free() from the radix tree code. Signed-off-by: Matthew Wilcox --- include/linux/idr.h| 8 +-

[PATCH v4 38/73] mm: Convert collapse_shmem to XArray

From: Matthew Wilcox I found another victim of the radix tree being hard to use. Because there was no call to radix_tree_preload(), khugepaged was allocating radix_tree_nodes using GFP_ATOMIC. I also converted a local_irq_save()/restore() pair to disable()/enable().

[PATCH v4 23/73] page cache: Add page_cache_range_empty function

From: Matthew Wilcox btrfs has its own custom function for determining whether the page cache has any pages in a particular range. Move this functionality to the page cache, and call it from btrfs. Signed-off-by: Matthew Wilcox ---

[PATCH v4 01/73] xfs: Rename xa_ elements to ail_

From: Matthew Wilcox This is a simple rename, except that xa_ail becomes ail_head. Signed-off-by: Matthew Wilcox --- fs/xfs/xfs_buf_item.c| 10 ++-- fs/xfs/xfs_dquot.c | 4 +- fs/xfs/xfs_dquot_item.c | 11 ++--

[PATCH v4 11/73] xarray: Add xa_store

From: Matthew Wilcox xa_store() differs from radix_tree_insert() in that it will overwrite an existing element in the array rather than returning an error. This is the behaviour which most users want, and those that want more complex behaviour generally want to use the

[PATCH v4 13/73] xarray: Add xa_for_each

From: Matthew Wilcox This iterator allows the user to efficiently walk a range of the array, executing the loop body once for each non-NULL entry in that range. This commit also includes xa_find() and xa_next() which are helper functions for xa_for_each() but may also be

[PATCH v4 09/73] xarray: Add xa_load

From: Matthew Wilcox This first function in the XArray API brings with it a lot of support infrastructure. The advanced API is based around the xa_state which is a more capable version of the radix_tree_iter. As the test-suite demonstrates, it is possible to use the

[PATCH v4 17/73] xarray: Add xas_next and xas_prev

From: Matthew Wilcox These two functions move the xas index by one position, and adjust the rest of the iterator state to match it. This is more efficient than calling xas_set() as it keeps the iterator at the leaves of the tree instead of walking the iterator from the

[PATCH v4 19/73] xarray: Add MAINTAINERS entry

From: Matthew Wilcox Add myself as XArray and IDR maintainer. Signed-off-by: Matthew Wilcox --- MAINTAINERS | 12 1 file changed, 12 insertions(+) diff --git a/MAINTAINERS b/MAINTAINERS index d4fdcb12616c..b2f8d606756b 100644 ---

[PATCH v4 24/73] page cache: Add and replace pages using the XArray

From: Matthew Wilcox Use the XArray APIs to add and replace pages in the page cache. This removes two uses of the radix tree preload API and is significantly shorter code. Signed-off-by: Matthew Wilcox --- mm/filemap.c | 142

[PATCH v4 62/73] dax: Convert dax_insert_pfn_mkwrite to XArray

From: Matthew Wilcox Signed-off-by: Matthew Wilcox --- fs/dax.c | 8 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/fs/dax.c b/fs/dax.c index 7bd94f1b61d0..619aff70583f 100644 --- a/fs/dax.c +++ b/fs/dax.c @@ -1498,21

[PATCH v4 07/73] xarray: Define struct xa_node

From: Matthew Wilcox This is a direct replacement for struct radix_tree_node. Use a #define so that radix tree users continue to work without change. Signed-off-by: Matthew Wilcox --- include/linux/radix-tree.h | 29

[PATCH v4 10/73] xarray: Add xa_get_tag, xa_set_tag and xa_clear_tag

From: Matthew Wilcox XArray tags are slightly more strongly typed than the radix tree tags, but occupy the same bits. This commit also adds the xas_ family of tag operations, for cases where the caller is already holding the lock, and xa_tagged() to ask whether any array

Re: [PATCH v4] usb: xhci: allow imod-interval to be configurable

Rob, On 12/5/2017 3:48 AM, Mathias Nyman wrote: > On 05.12.2017 04:54, Adam Wallis wrote: >> On 12/4/2017 9:15 PM, Chunfeng Yun wrote: >>> On Mon, 2017-12-04 at 09:27 -0500, Adam Wallis wrote: The xHCI driver currently has the IMOD set to 160, which [..] > > If Rob Acks this version I'll

[PATCH v4 12/73] xarray: Add xa_cmpxchg

From: Matthew Wilcox This works like doing cmpxchg() on an array entry. Code which wants the radix_tree_insert() semantic of not overwriting an existing entry can cmpxchg() with NULL and get the action it wants. Plus, instead of having an error returned, they get the

[PATCH v4 43/73] shmem: Convert find_swap_entry to XArray

From: Matthew Wilcox This is a 1:1 conversion. Signed-off-by: Matthew Wilcox --- mm/shmem.c | 23 +++ 1 file changed, 11 insertions(+), 12 deletions(-) diff --git a/mm/shmem.c b/mm/shmem.c index 654f367aca90..ce285ae635ea

[PATCH v4 36/73] mm: Convert page migration to XArray

From: Matthew Wilcox Signed-off-by: Matthew Wilcox --- mm/migrate.c | 40 1 file changed, 16 insertions(+), 24 deletions(-) diff --git a/mm/migrate.c b/mm/migrate.c index 59f18c571120..7122fec9b075 100644

[PATCH v4 39/73] mm: Convert khugepaged_scan_shmem to XArray

From: Matthew Wilcox Slightly shorter and easier to read code. Signed-off-by: Matthew Wilcox --- mm/khugepaged.c | 17 + 1 file changed, 5 insertions(+), 12 deletions(-) diff --git a/mm/khugepaged.c b/mm/khugepaged.c index

[PATCH v4 03/73] page cache: Use xa_lock

From: Matthew Wilcox Remove the address_space ->tree_lock and use the xa_lock newly added to the radix_tree_root. Rename the address_space ->page_tree to ->pages, since we don't really care that it's a tree. Take the opportunity to rearrange the elements of

[PATCH v4 04/73] xarray: Replace exceptional entries

From: Matthew Wilcox Introduce xarray value entries to replace the radix tree exceptional entry code. This is a slight change in encoding to allow the use of an extra bit (we can now store BITS_PER_LONG - 1 bits in a value entry). It is also a change in emphasis;

[PATCH v4 14/73] xarray: Add xas_for_each_tag

From: Matthew Wilcox This iterator operates across each tagged entry in the specified range. We do not yet have a user for an xa_for_each_tag iterator, but it would be straight-forward to add one if needed. This commit also includes xas_find_tag() and xas_next_tag().

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