diff options
| author | Mauro Carvalho Chehab <mchehab@s-opensource.com> | 2017-09-29 05:24:10 -0400 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@s-opensource.com> | 2017-09-29 05:24:10 -0400 |
| commit | cf09e3c904bf424f8b6a8203958e09bf7d9bcbc0 (patch) | |
| tree | 5e9936b3de36aa222b52a9bca366a43d98730ffd /Documentation/core-api/workqueue.rst | |
| parent | d5426f4c2ebac8cf05de43988c3fccddbee13d28 (diff) | |
| parent | e19b205be43d11bff638cad4487008c48d21c103 (diff) | |
Merge tag 'v4.14-rc2' into patchwork
Linux 4.14-rc2
* tag 'v4.14-rc2': (12066 commits)
Linux 4.14-rc2
tpm: ibmvtpm: simplify crq initialization and document crq format
tpm: replace msleep() with usleep_range() in TPM 1.2/2.0 generic drivers
Documentation: tpm: add powered-while-suspended binding documentation
tpm: tpm_crb: constify acpi_device_id.
tpm: vtpm: constify vio_device_id
security: fix description of values returned by cap_inode_need_killpriv
x86/asm: Fix inline asm call constraints for Clang
objtool: Handle another GCC stack pointer adjustment bug
inet: fix improper empty comparison
net: use inet6_rcv_saddr to compare sockets
net: set tb->fast_sk_family
net: orphan frags on stand-alone ptype in dev_queue_xmit_nit
MAINTAINERS: update git tree locations for ieee802154 subsystem
SMB3: Don't ignore O_SYNC/O_DSYNC and O_DIRECT flags
SMB3: handle new statx fields
arch: remove unused *_segments() macros/functions
parisc: Unbreak bootloader due to gcc-7 optimizations
parisc: Reintroduce option to gzip-compress the kernel
apparmor: fix apparmorfs DAC access permissions
...
Diffstat (limited to 'Documentation/core-api/workqueue.rst')
| -rw-r--r-- | Documentation/core-api/workqueue.rst | 10 |
1 files changed, 7 insertions, 3 deletions
diff --git a/Documentation/core-api/workqueue.rst b/Documentation/core-api/workqueue.rst index ffdec94fbca1..3943b5bfa8cf 100644 --- a/Documentation/core-api/workqueue.rst +++ b/Documentation/core-api/workqueue.rst @@ -243,11 +243,15 @@ throttling the number of active work items, specifying '0' is recommended. Some users depend on the strict execution ordering of ST wq. The -combination of ``@max_active`` of 1 and ``WQ_UNBOUND`` is used to -achieve this behavior. Work items on such wq are always queued to the -unbound worker-pools and only one work item can be active at any given +combination of ``@max_active`` of 1 and ``WQ_UNBOUND`` used to +achieve this behavior. Work items on such wq were always queued to the +unbound worker-pools and only one work item could be active at any given time thus achieving the same ordering property as ST wq. +In the current implementation the above configuration only guarantees +ST behavior within a given NUMA node. Instead alloc_ordered_queue should +be used to achieve system wide ST behavior. + Example Execution Scenarios =========================== |