Re: [RFC][PATCHv2] Fixing POSIX wait queue to insert in task priority order for real-time, including normal tasks

Sorry for the initial email - forgot the signed-off-by in my commit.  Still new to this... I'd like feedback from the community on this patch.  I've tested this against my applications that were exhibiting problematic behavior when tasks would wake up in FIFO order instead of priority order when

Re: [RFC][PATCHv2] Fixing POSIX wait queue to insert in task priority order for real-time, including normal tasks

Sorry for the initial email - forgot the signed-off-by in my commit.  Still new to this... I'd like feedback from the community on this patch.  I've tested this against my applications that were exhibiting problematic behavior when tasks would wake up in FIFO order instead of priority order when

Re: [PATCH 00/10] ASoC: fsl_ssi: Clean up - coding style level

On Wed, Dec 06, 2017 at 02:01:32AM +0100, Maciej S. Szmigiero wrote: > >>> ==Verification== > >>> Theoretically, it only needs code review, build and sanity tests. I > >>> have done build and sanity tests on an i.MX 6 platform by building > >>> using imx_v6_v7_defconfig and testing with I2S

Re: [PATCH 00/10] ASoC: fsl_ssi: Clean up - coding style level

On Wed, Dec 06, 2017 at 02:01:32AM +0100, Maciej S. Szmigiero wrote: > >>> ==Verification== > >>> Theoretically, it only needs code review, build and sanity tests. I > >>> have done build and sanity tests on an i.MX 6 platform by building > >>> using imx_v6_v7_defconfig and testing with I2S

Re: [Intel-gfx] linux-next: build failure after merge of the drm-misc tree

On Wed, Dec 06, 2017 at 01:00:15AM +, Stephen Rothwell wrote: > Hi all, Hi Stephen, I had just written the email for you about this. Feel free to ignore that one since you already found the solution and sorry for the delay on warning you. > > After merging the drm-misc tree, today's

Re: [Intel-gfx] linux-next: build failure after merge of the drm-misc tree

On Wed, Dec 06, 2017 at 01:00:15AM +, Stephen Rothwell wrote: > Hi all, Hi Stephen, I had just written the email for you about this. Feel free to ignore that one since you already found the solution and sorry for the delay on warning you. > > After merging the drm-misc tree, today's

Re: [PATCH v2 06/15] NTB: ntb_perf: Add full multi-port NTB API support

Hi Serge, I love your patch! Perhaps something to improve: [auto build test WARNING on linus/master] [also build test WARNING on v4.15-rc2] [cannot apply to ntb/ntb-next next-20171205] [if your patch is applied to the wrong git tree, please drop us a note to help improve the system] url

Re: [PATCH v2 06/15] NTB: ntb_perf: Add full multi-port NTB API support

Hi Serge, I love your patch! Perhaps something to improve: [auto build test WARNING on linus/master] [also build test WARNING on v4.15-rc2] [cannot apply to ntb/ntb-next next-20171205] [if your patch is applied to the wrong git tree, please drop us a note to help improve the system] url

Re: [PATCH v3 4/4] document: change the document for immovable_mem

On Tue, Dec 05, 2017 at 09:36:24AM -0800, Randy Dunlap wrote: >On 12/05/2017 12:52 AM, Chao Fan wrote: >> Add the document for the change of new parameter >> immovable_mem=nn[KMG]@ss[KMG]. >> >> Cc: linux-...@vger.kernel.org >> Cc: Jonathan Corbet >> Signed-off-by: Chao Fan

Re: [PATCH v3 4/4] document: change the document for immovable_mem

On Tue, Dec 05, 2017 at 09:36:24AM -0800, Randy Dunlap wrote: >On 12/05/2017 12:52 AM, Chao Fan wrote: >> Add the document for the change of new parameter >> immovable_mem=nn[KMG]@ss[KMG]. >> >> Cc: linux-...@vger.kernel.org >> Cc: Jonathan Corbet >> Signed-off-by: Chao Fan >> --- >>

[RFC][PATCHv2] Fixing POSIX wait queue to insert in task priority order for real-time, including normal tasks

Signed-off-by: Jonathan Haws --- ipc/mqueue.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/ipc/mqueue.c b/ipc/mqueue.c index 9649ecd..cb96db9 100644 --- a/ipc/mqueue.c +++ b/ipc/mqueue.c @@ -546,7 +546,7 @@ static void wq_add(struct mqueue_inode_info

[RFC][PATCHv2] Fixing POSIX wait queue to insert in task priority order for real-time, including normal tasks

Signed-off-by: Jonathan Haws --- ipc/mqueue.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/ipc/mqueue.c b/ipc/mqueue.c index 9649ecd..cb96db9 100644 --- a/ipc/mqueue.c +++ b/ipc/mqueue.c @@ -546,7 +546,7 @@ static void wq_add(struct mqueue_inode_info *info, int sr,

Re: [PATCH v3 1/4] kaslr: add immovable_mem=nn[KMG]@ss[KMG] to specify extracting memory

On Tue, Dec 05, 2017 at 11:42:42AM -0800, Kees Cook wrote: >On Tue, Dec 5, 2017 at 12:51 AM, Chao Fan wrote: >> In current code, kaslr may choose the memory region in movable >> nodes to extract kernel, which will make the nodes can't be hot-removed. >> To solve it, we

Re: [PATCH v3 1/4] kaslr: add immovable_mem=nn[KMG]@ss[KMG] to specify extracting memory

On Tue, Dec 05, 2017 at 11:42:42AM -0800, Kees Cook wrote: >On Tue, Dec 5, 2017 at 12:51 AM, Chao Fan wrote: >> In current code, kaslr may choose the memory region in movable >> nodes to extract kernel, which will make the nodes can't be hot-removed. >> To solve it, we can specify the memory

[RFC][PATCH] Fixing POSIX wait queue to insert in task priority order for real-time, including normal tasks

--- ipc/mqueue.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/ipc/mqueue.c b/ipc/mqueue.c index 9649ecd..cb96db9 100644 --- a/ipc/mqueue.c +++ b/ipc/mqueue.c @@ -546,7 +546,7 @@ static void wq_add(struct mqueue_inode_info *info, int sr, ewp->task = current;

[RFC][PATCH] Fixing POSIX wait queue to insert in task priority order for real-time, including normal tasks

--- ipc/mqueue.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/ipc/mqueue.c b/ipc/mqueue.c index 9649ecd..cb96db9 100644 --- a/ipc/mqueue.c +++ b/ipc/mqueue.c @@ -546,7 +546,7 @@ static void wq_add(struct mqueue_inode_info *info, int sr, ewp->task = current;

[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

[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 member has a particular

Re: [PATCH 4.4 13/16] ocfs2: should wait dio before inode lock in ocfs2_setattr()

Hi Ben, Thanks for your reply. On 2017/12/5 23:49, Ben Hutchings wrote: > On Wed, 2017-11-22 at 11:12 +0100, Greg Kroah-Hartman wrote: >> 4.4-stable review patch. If anyone has any objections, please let me know. >> >> -- >> >> From: alex chen >> >> commit

Re: [PATCH 4.4 13/16] ocfs2: should wait dio before inode lock in ocfs2_setattr()

Hi Ben, Thanks for your reply. On 2017/12/5 23:49, Ben Hutchings wrote: > On Wed, 2017-11-22 at 11:12 +0100, Greg Kroah-Hartman wrote: >> 4.4-stable review patch. If anyone has any objections, please let me know. >> >> -- >> >> From: alex chen >> >> commit

[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 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 +++-- include/linux/xarray.h | 24

[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 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| 12 ++-- include/linux/radix-tree.h

[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 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. Instead, the XArray has

[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 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 root each time.

[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 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 xarray and radix tree APIs

[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 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 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 +-- 1 file

[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 xas family of routines

[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 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 useful in their own

Re: [PATCH v2 0/3] macb rx filter cleanups

From: Julia Cartwright Date: Tue, 5 Dec 2017 18:02:47 -0600 > Here's a proper patchset based on net-next. > > v1 -> v2: > - Rebased on net-next > - Add Nicolas's Acks > - Reorder commits, putting the list_empty() cleanups prior to the > others. > - Added commit

Re: [PATCH v2 0/3] macb rx filter cleanups

From: Julia Cartwright Date: Tue, 5 Dec 2017 18:02:47 -0600 > Here's a proper patchset based on net-next. > > v1 -> v2: > - Rebased on net-next > - Add Nicolas's Acks > - Reorder commits, putting the list_empty() cleanups prior to the > others. > - Added commit reverting the

[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 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 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 --- include/linux/radix-tree.h |

[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 ++ 2 files changed, 282

[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 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -14874,6

[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 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 I'll get to once this is

[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 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 a/mm/filemap.c b/mm/filemap.c index

[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 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 xa_state to control the

[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 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(+), 9 deletions(-) diff --git a/mm/truncate.c

[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 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 --- fs/btrfs/btrfs_inode.h | 7 - fs/btrfs/inode.c

[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 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 | 48

[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 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 address_space to pack them better on

[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 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 file changed, 29 insertions(+), 64 deletions(-)

Re: [PATCH] PM: Provide a config snippet for disabling PM

On Wednesday, November 29, 2017 12:12:27 PM CET Mark Brown wrote: > A frequent source of build problems is poor handling of optional PM > support, almost all development is done with the PM options enabled > but they can be turned off. Currently few if any of the build test > services do this as

Re: [PATCH] PM: Provide a config snippet for disabling PM

On Wednesday, November 29, 2017 12:12:27 PM CET Mark Brown wrote: > A frequent source of build problems is poor handling of optional PM > support, almost all development is done with the PM options enabled > but they can be turned off. Currently few if any of the build test > services do this as

[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 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; exceptional entries are

Re: [PATCH 00/10] ASoC: fsl_ssi: Clean up - coding style level

On 05.12.2017 20:33, Nicolin Chen wrote: > On Tue, Dec 05, 2017 at 02:01:17PM +0100, Maciej S. Szmigiero wrote: > >>> ==Verification== >>> Theoretically, it only needs code review, build and sanity tests. I >>> have done build and sanity tests on an i.MX 6 platform by building >>> using

Re: [PATCH 00/10] ASoC: fsl_ssi: Clean up - coding style level

On 05.12.2017 20:33, Nicolin Chen wrote: > On Tue, Dec 05, 2017 at 02:01:17PM +0100, Maciej S. Szmigiero wrote: > >>> ==Verification== >>> Theoretically, it only needs code review, build and sanity tests. I >>> have done build and sanity tests on an i.MX 6 platform by building >>> using

[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 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 ++-- fs/xfs/xfs_inode_item.c | 22 +++ fs/xfs/xfs_log.c |

Re: [PATCH v3 3/3] arm64: dts: meson-axg: add clock DT info for Meson AXG SoC

On 12/01, Jerome Brunet wrote: > On Fri, 2017-12-01 at 08:34 -0800, Stephen Boyd wrote: > > On 11/30, Yixun Lan wrote: > > > Hi Stephen > > > > > > On 11/30/17 03:35, Stephen Boyd wrote: > > > > > > > > Maybe just call the node "bus@ff63c000"? > > > > > > > > > > isn't this just a name? what's

[PATCH v4 25/73] page cache: Convert page deletion to XArray

From: Matthew Wilcox The code is slightly shorter and simpler. Signed-off-by: Matthew Wilcox --- mm/filemap.c | 26 -- 1 file changed, 12 insertions(+), 14 deletions(-) diff --git a/mm/filemap.c b/mm/filemap.c index

Re: [PATCH v3 3/3] arm64: dts: meson-axg: add clock DT info for Meson AXG SoC

On 12/01, Jerome Brunet wrote: > On Fri, 2017-12-01 at 08:34 -0800, Stephen Boyd wrote: > > On 11/30, Yixun Lan wrote: > > > Hi Stephen > > > > > > On 11/30/17 03:35, Stephen Boyd wrote: > > > > > > > > Maybe just call the node "bus@ff63c000"? > > > > > > > > > > isn't this just a name? what's

[PATCH v4 25/73] page cache: Convert page deletion to XArray

From: Matthew Wilcox The code is slightly shorter and simpler. Signed-off-by: Matthew Wilcox --- mm/filemap.c | 26 -- 1 file changed, 12 insertions(+), 14 deletions(-) diff --git a/mm/filemap.c b/mm/filemap.c index 2439747a0a17..6e2808fd3c06 100644 --- a/mm/filemap.c

[PATCH v4 16/73] xarray: Add xa_destroy

From: Matthew Wilcox This function frees all the internal memory allocated to the xarray and reinitialises it to be empty. Signed-off-by: Matthew Wilcox --- include/linux/xarray.h | 1 + lib/xarray.c | 26 ++ 2

[PATCH v4 16/73] xarray: Add xa_destroy

From: Matthew Wilcox This function frees all the internal memory allocated to the xarray and reinitialises it to be empty. Signed-off-by: Matthew Wilcox --- include/linux/xarray.h | 1 + lib/xarray.c | 26 ++ 2 files changed, 27 insertions(+) diff --git

[PATCH v4 05/73] xarray: Change definition of sibling entries

From: Matthew Wilcox Instead of storing a pointer to the slot containing the canonical entry, store the offset of the slot. Produces slightly more efficient code (~300 bytes) and simplifies the implementation. Signed-off-by: Matthew Wilcox ---

[PATCH v4 29/73] mm: Convert page-writeback to XArray

From: Matthew Wilcox Includes moving mapping_tagged() to fs.h as a static inline, and changing it to return bool. Signed-off-by: Matthew Wilcox --- include/linux/fs.h | 17 +-- mm/page-writeback.c | 62

[PATCH v4 05/73] xarray: Change definition of sibling entries

From: Matthew Wilcox Instead of storing a pointer to the slot containing the canonical entry, store the offset of the slot. Produces slightly more efficient code (~300 bytes) and simplifies the implementation. Signed-off-by: Matthew Wilcox --- include/linux/xarray.h | 82

[PATCH v4 29/73] mm: Convert page-writeback to XArray

From: Matthew Wilcox Includes moving mapping_tagged() to fs.h as a static inline, and changing it to return bool. Signed-off-by: Matthew Wilcox --- include/linux/fs.h | 17 +-- mm/page-writeback.c | 62 +++-- 2 files changed, 32

[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 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().

[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(). Signed-off-by: Matthew

[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 +- include/linux/radix-tree.h | 4 - lib/idr.c

linux-next: build failure after merge of the drm-misc tree

Hi all, After merging the drm-misc tree, today's linux-next build (x86_64 allmodconfig) failed like this: drivers/gpu/drm/i915/intel_dsi.c: In function 'intel_dsi_get_panel_orientation': drivers/gpu/drm/i915/intel_dsi.c:1673:13: error: storage size of 'plane' isn't known enum plane plane;

linux-next: build failure after merge of the drm-misc tree

Hi all, After merging the drm-misc tree, today's linux-next build (x86_64 allmodconfig) failed like this: drivers/gpu/drm/i915/intel_dsi.c: In function 'intel_dsi_get_panel_orientation': drivers/gpu/drm/i915/intel_dsi.c:1673:13: error: storage size of 'plane' isn't known enum plane plane;

[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 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(). Signed-off-by: Matthew

[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 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 --- include/linux/backing-dev-defs.h | 2 +-

[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 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 e687d06cd97c..4174b166e235 100644 ---

[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 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 --- a/mm/readahead.c +++ b/mm/readahead.c @@ -174,9 +174,7

[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 ++-- mm/vmscan.c |

[PATCH v4 45/73] shmem: Convert shmem_wait_for_pins to XArray

From: Matthew Wilcox As with shmem_tag_pins(), hold the lock around the entire loop instead of acquiring & dropping it for each entry we're going to untag. Signed-off-by: Matthew Wilcox --- mm/shmem.c | 59

[PATCH v4 45/73] shmem: Convert shmem_wait_for_pins to XArray

From: Matthew Wilcox As with shmem_tag_pins(), hold the lock around the entire loop instead of acquiring & dropping it for each entry we're going to untag. Signed-off-by: Matthew Wilcox --- mm/shmem.c | 59 --- 1 file changed, 24

Re: [PATCH V4 0/2] Restructure and fix GHES PCIe AER handling

On Tuesday, November 28, 2017 10:48:07 PM CET Tyler Baicar wrote: > First, break the PCIe AER handling out into its own function to separate > it from the standard GHES processing > > Then fix the AER handling to process all errors in the AER driver rather > than only handling recoverable errors.

Re: [PATCH V4 0/2] Restructure and fix GHES PCIe AER handling

On Tuesday, November 28, 2017 10:48:07 PM CET Tyler Baicar wrote: > First, break the PCIe AER handling out into its own function to separate > it from the standard GHES processing > > Then fix the AER handling to process all errors in the AER driver rather > than only handling recoverable errors.

[PATCH v4 46/73] shmem: Convert shmem_add_to_page_cache to XArray

From: Matthew Wilcox This removes the last caller of radix_tree_maybe_preload_order(). Simpler code, unless we run out of memory for new xa_nodes partway through inserting entries into the xarray. Hopefully we can support multi-index entries in the page cache soon and

[PATCH v4 46/73] shmem: Convert shmem_add_to_page_cache to XArray

From: Matthew Wilcox This removes the last caller of radix_tree_maybe_preload_order(). Simpler code, unless we run out of memory for new xa_nodes partway through inserting entries into the xarray. Hopefully we can support multi-index entries in the page cache soon and all the awful code goes

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