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#
# Unix Domain Sockets
#

config UNIX
	tristate "Unix domain sockets"
	---help---
	  If you say Y here, you will include support for Unix domain sockets;
	  sockets are the standard Unix mechanism for establishing and
	  accessing network connections.  Many commonly used programs such as
	  the X Window system and syslog use these sockets even if your
	  machine is not connected to any network.  Unless you are working on
	  an embedded system or something similar, you therefore definitely
	  want to say Y here.

	  To compile this driver as a module, choose M here: the module will be
	  called unix.  Note that several important services won't work
	  correctly if you say M here and then neglect to load the module.

	  Say Y unless you know what you are doing.

config UNIX_DIAG
	tristate "UNIX: socket monitoring interface"
	depends on UNIX
	default n
	---help---
	  Support for UNIX socket monitoring interface used by the ss tool.
	  If unsure, say Y.
a1f31f98194e4f6b6cae7'>net/dccp/dccp.h parent0c744ea4f77d72b3dcebb7a8f2684633ec79be88 (diff)
tracing: Fix hwlat kthread migration
The hwlat tracer creates a kernel thread at start of the tracer. It is pinned to a single CPU and will move to the next CPU after each period of running. If the user modifies the migration thread's affinity, it will not change after that happens. The original code created the thread at the first instance it was called, but later was changed to destroy the thread after the tracer was finished, and would not be created until the next instance of the tracer was established. The code that initialized the affinity was only called on the initial instantiation of the tracer. After that, it was not initialized, and the previous affinity did not match the current newly created one, making it appear that the user modified the thread's affinity when it did not, and the thread failed to migrate again. Cc: stable@vger.kernel.org Fixes: 0330f7aa8ee6 ("tracing: Have hwlat trace migrate across tracing_cpumask CPUs") Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Diffstat (limited to 'net/dccp/dccp.h')