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rcu: Remove RCU_NONIDLE() Since there are now exactly _zero_ users of RCU_NONIDLE(), make it go away before someone else decides to (ab)use it. [ paulmck: Remove extraneous whitespace. ] Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Acked-by: Mark Rutland <mark.rutland@arm.com> Acked-by: Frederic Weisbecker <frederic@kernel.org> Signed-off-by: Paul E. McKenney <paulmck@kernel.org> | 3 年前 | |
doc: Update NMI-RCU.rst This commit updates NMI-RCU.rst to highlight the ancient heritage of the example code and to discourage wanton compiler "optimizations". Signed-off-by: Paul E. McKenney <paulmck@kernel.org> | 3 年前 | |
Documentation: RCU: Correct spelling Correct spelling problems for Documentation/RCU/ as reported by codespell. Note: in RTFP.txt, there are other misspellings that are left as is since they were used that way in email Subject: lines or in LWN.net articles. [preemptable, Preemptable, synchonisation] Acked-by: Joel Fernandes (Google) <joel@joelfernandes.org> Signed-off-by: Randy Dunlap <rdunlap@infradead.org> Cc: Jonathan Corbet <corbet@lwn.net> Cc: linux-doc@vger.kernel.org Cc: "Paul E. McKenney" <paulmck@kernel.org> Cc: Frederic Weisbecker <frederic@kernel.org> Cc: Neeraj Upadhyay <quic_neeraju@quicinc.com> Cc: Josh Triplett <josh@joshtriplett.org> Cc: rcu@vger.kernel.org Signed-off-by: Paul E. McKenney <paulmck@kernel.org> Signed-off-by: Joel Fernandes (Google) <joel@joelfernandes.org> | 3 年前 | |
Documentation: RCU: Correct spelling Correct spelling problems for Documentation/RCU/ as reported by codespell. Note: in RTFP.txt, there are other misspellings that are left as is since they were used that way in email Subject: lines or in LWN.net articles. [preemptable, Preemptable, synchonisation] Acked-by: Joel Fernandes (Google) <joel@joelfernandes.org> Signed-off-by: Randy Dunlap <rdunlap@infradead.org> Cc: Jonathan Corbet <corbet@lwn.net> Cc: linux-doc@vger.kernel.org Cc: "Paul E. McKenney" <paulmck@kernel.org> Cc: Frederic Weisbecker <frederic@kernel.org> Cc: Neeraj Upadhyay <quic_neeraju@quicinc.com> Cc: Josh Triplett <josh@joshtriplett.org> Cc: rcu@vger.kernel.org Signed-off-by: Paul E. McKenney <paulmck@kernel.org> Signed-off-by: Joel Fernandes (Google) <joel@joelfernandes.org> | 3 年前 | |
Documentation/RCU: s/not/note/ in checklist.rst "Please not that you *cannot* rely..." has a typo. Fix it. Acked-by: Joel Fernandes (Google) <joel@joelfernandes.org> Signed-off-by: Qiuxu Zhuo <qiuxu.zhuo@intel.com> Signed-off-by: Paul E. McKenney <paulmck@kernel.org> Signed-off-by: Joel Fernandes (Google) <joel@joelfernandes.org> | 3 年前 | |
doc: Remove arrayRCU.rst Although RCU can in theory be used to protect array indexes in a manner similar to the way it protects pointers, doing so is extremely risky because of the huge number of optimizations that modern compilers can apply to integral types. For but one example, if your code can be configured such that your array contains only a single element, then indexing that array with any integer other than zero invokes undefined behavior, which in turn means that the compiler is within its rights to assume (without checking!) that any integer used as an index to that array has the value zero. Therefore, the compiler can index the array with the constant zero, which breaks any dependencies that might have otherwise existed between the time the actual value was loaded and the time that the array was indexed. This commit therefore removes the arrayRCU.rst file that describes how to go about carrying dependencies through array indexes. Signed-off-by: Paul E. McKenney <paulmck@kernel.org> | 3 年前 | |
doc: Update listRCU.rst This commit updates listRCU.txt to reflect RCU additions and changes over the past few years. [ paulmck: Apply kernel test robot feedback. ] Signed-off-by: Paul E. McKenney <paulmck@kernel.org> | 3 年前 | |
documentation/rcu: Fix typo s/slat/splat/ Signed-off-by: Tycho Andersen <tandersen@netflix.com> Signed-off-by: Paul E. McKenney <paulmck@kernel.org> | 3 年前 | |
Documentation: RCU: Correct spelling Correct spelling problems for Documentation/RCU/ as reported by codespell. Note: in RTFP.txt, there are other misspellings that are left as is since they were used that way in email Subject: lines or in LWN.net articles. [preemptable, Preemptable, synchonisation] Acked-by: Joel Fernandes (Google) <joel@joelfernandes.org> Signed-off-by: Randy Dunlap <rdunlap@infradead.org> Cc: Jonathan Corbet <corbet@lwn.net> Cc: linux-doc@vger.kernel.org Cc: "Paul E. McKenney" <paulmck@kernel.org> Cc: Frederic Weisbecker <frederic@kernel.org> Cc: Neeraj Upadhyay <quic_neeraju@quicinc.com> Cc: Josh Triplett <josh@joshtriplett.org> Cc: rcu@vger.kernel.org Signed-off-by: Paul E. McKenney <paulmck@kernel.org> Signed-off-by: Joel Fernandes (Google) <joel@joelfernandes.org> | 3 年前 | |
doc: Update rcu.rst URL to RCU publications Also add the more recent thicket of Google Documents. Signed-off-by: Paul E. McKenney <paulmck@kernel.org> | 3 年前 | |
doc: Update rcu_dereference.rst This commit updates rcu_dereference.rst to reflect RCU additions and changes over the past few years Signed-off-by: Paul E. McKenney <paulmck@kernel.org> | 3 年前 | |
docs/RCU/rcubarrier: Right-adjust line numbers in code snippets Line numbers in code snippets in rcubarrier.rst have beed left adjusted since commit 4af498306ffd ("doc: Convert to rcubarrier.txt to ReST"). This might have been because right adjusting them had confused Sphinx. The rules around a literal block in reST are: - Need a blank line above it. - A line with the same indent level as the line above it is regarded as the end of it. Those line numbers can be right adjusted by keeping indents at two- digit numbers. While at it, add some spaces between the column of line numbers and the code area for better readability. Signed-off-by: Akira Yokosawa <akiyks@gmail.com> Signed-off-by: Paul E. McKenney <paulmck@kernel.org> | 3 年前 | |
Docs/RCU/rculist_nulls: Fix text about atomic_set_release() The document says we can avoid extra _release() in insert function when hlist_nulls is used, but that's not true[1]. Drop it. [1] https://lore.kernel.org/rcu/46440869-644a-4982-b790-b71b43976c66@paulmck-laptop/ Signed-off-by: SeongJae Park <sj@kernel.org> Signed-off-by: Paul E. McKenney <paulmck@kernel.org> | 3 年前 | |
docs: RCU: Convert rcuref.txt to ReST - Add a SPDX header; - Adjust document title; - Some whitespace fixes and new line breaks; - Mark literal blocks as such; - Add it to RCU/index.rst. Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Signed-off-by: Paul E. McKenney <paulmck@kernel.org> | 6 年前 | |
doc: rcu: update printed dynticks counter bits [ Upstream commit 4a09e358922381f9b258e863bcd9c910584203b9 ] The stall warning prints 16 bits since commit 171476775d32 ("context_tracking: Convert state to atomic_t"). Fixes: 171476775d32 ("context_tracking: Convert state to atomic_t") Signed-off-by: Baruch Siach <baruch@tkos.co.il> Reviewed-by: "Paul E. McKenney" <paulmck@kernel.org> Signed-off-by: Neeraj Upadhyay <neeraj.upadhyay@kernel.org> Signed-off-by: Frederic Weisbecker <frederic@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org> (cherry picked from commit f5fed8a850d08136f424ac378279162508dde4e0) | 1 年前 | |
Documentation: RCU: Correct spelling Correct spelling problems for Documentation/RCU/ as reported by codespell. Note: in RTFP.txt, there are other misspellings that are left as is since they were used that way in email Subject: lines or in LWN.net articles. [preemptable, Preemptable, synchonisation] Acked-by: Joel Fernandes (Google) <joel@joelfernandes.org> Signed-off-by: Randy Dunlap <rdunlap@infradead.org> Cc: Jonathan Corbet <corbet@lwn.net> Cc: linux-doc@vger.kernel.org Cc: "Paul E. McKenney" <paulmck@kernel.org> Cc: Frederic Weisbecker <frederic@kernel.org> Cc: Neeraj Upadhyay <quic_neeraju@quicinc.com> Cc: Josh Triplett <josh@joshtriplett.org> Cc: rcu@vger.kernel.org Signed-off-by: Paul E. McKenney <paulmck@kernel.org> Signed-off-by: Joel Fernandes (Google) <joel@joelfernandes.org> | 3 年前 | |
rcu: Remove RCU_NONIDLE() Since there are now exactly _zero_ users of RCU_NONIDLE(), make it go away before someone else decides to (ab)use it. [ paulmck: Remove extraneous whitespace. ] Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Acked-by: Mark Rutland <mark.rutland@arm.com> Acked-by: Frederic Weisbecker <frederic@kernel.org> Signed-off-by: Paul E. McKenney <paulmck@kernel.org> | 3 年前 |
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