]> git.baikalelectronics.ru Git - kernel.git/commit
projects / kernel.git / commit
? search:
summary | shortlog | log | commit | commitdiff | tree
(parent: 93b8a3e) | patch
ring-buffer: Mark the !tail (crossing a page) as unlikely
authorSteven Rostedt (VMware) <rostedt@goodmis.org>
Tue, 30 Jun 2020 13:04:35 +0000 (09:04 -0400)
committerSteven Rostedt (VMware) <rostedt@goodmis.org>
Tue, 30 Jun 2020 21:18:56 +0000 (17:18 -0400)
commit7d710fd1e9c1382c005577b61cff98d8d0360ff1
tree6c12e434fe28cf3fa11b1ce13f2f42b33a42d833tree | snapshot
parent93b8a3ed58c03bfc0dcb02c4a61473d2ab57ebfbcommit | diff
ring-buffer: Mark the !tail (crossing a page) as unlikely

It is the uncommon case where an event crosses a sub buffer boundary (page)
mark that check at the end of reserving an event as unlikely.

Suggested-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
kernel/trace/ring_buffer.c diff | blob | history
Linux Kernel Source Tree.