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gem5 / arm / linux / d57d611505d911c6f9f81cd9bd6dbd293d66dd9f
commitd57d611505d911c6f9f81cd9bd6dbd293d66dd9f[log] [tgz]
authorStephane Gasparini <stephane.gasparini@linux.intel.com>Tue Feb 09 17:07:38 2016 +0100
committerJens Axboe <axboe@fb.com>Tue Feb 09 09:27:01 2016 -0700
treee4616ad08b32aa47a3050e42e706d20212c8955f
parent09954bad448791ef01202351d437abdd9497a804 [diff]
kernel/fs: fix I/O wait not accounted for RW O_DSYNC

 When a process is doing Random Write with O_DSYNC flag
 the I/O wait are not accounted in the kernel (get_cpu_iowait_time_us).
 This is preventing the governor or the cpufreq driver to account for
 I/O wait and thus use the right pstate

Signed-off-by: Stephane Gasparini <stephane.gasparini@linux.intel.com>
Signed-off-by: Philippe Longepe <philippe.longepe@linux.intel.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
1 file changed
tree: e4616ad08b32aa47a3050e42e706d20212c8955f
  1. arch/
  2. block/
  3. certs/
  4. crypto/
  5. Documentation/
  6. drivers/
  7. firmware/
  8. fs/
  9. include/
  10. init/
  11. ipc/
  12. kernel/
  13. lib/
  14. mm/
  15. net/
  16. samples/
  17. scripts/
  18. security/
  19. sound/
  20. tools/
  21. usr/
  22. virt/
  23. .get_maintainer.ignore
  24. .gitignore
  25. .mailmap
  26. COPYING
  27. CREDITS
  28. Kbuild
  29. Kconfig
  30. MAINTAINERS
  31. Makefile
  32. README
  33. REPORTING-BUGS