vtime: Add HAVE_VIRT_CPU_ACCOUNTING_GEN Kconfig

With VIRT_CPU_ACCOUNTING_GEN, cputime_t becomes 64-bit. In order
to use that feature, arch code should be audited to ensure there are no
races in concurrent read/write of cputime_t. For example,
reading/writing 64-bit cputime_t on some 32-bit arches may require
multiple accesses for low and high value parts, so proper locking
is needed to protect against concurrent accesses.

Therefore, add CONFIG_HAVE_VIRT_CPU_ACCOUNTING_GEN which arches can
enable after they've been audited for potential races.

This option is automatically enabled on 64-bit platforms.

Feature requested by Frederic Weisbecker.

Signed-off-by: Kevin Hilman <khilman@linaro.org>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Russell King <rmk@arm.linux.org.uk>
Cc: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Cc: Arm Linux <linux-arm-kernel@lists.infradead.org>
Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>

path: root/changelog

inotail 0.3

  * Follow files even if they were moved
  * Fix a problem when tailing more than 4096 bytes/chars at once
  * Only print the filename once when the -v option is specified
  * Various small fixes and cleanups

  -- Tobias Klauser <tklauser@distanz.ch> 2007-04-17 13:44

inotail 0.2

  * Support for the -n/-c +<num> options (tail relative to start of file)
  * Copyright and license cleanup
  * Various fixes

  -- Tobias Klauser <tklauser@distanz.ch.ch> 2006-11-30 17:56