Download/kernel/rhel6-testing/042stab072.2/changes

Changes

This is a merge between 068.8 and 070.11 kernels, adding the features of 068.8 into 070.11 kernel.

[ubc/mm] A new strict page cache isolation feature (PSBM-16955, see Page cache isolation)
[mm] per-bc pagecache should be shrinked proportionally now (PSBM-15799)
[mm] debug trace events has been added into shrink_zone and shrink_gang
[dcache] introduce per-bc dcache lru lists with real time shrink. Underlying dcache can be immediately shrunk if sysctl "ubc.dcache_no_vzfs_cache" is set (PSBM-16072)
[vSwap] virtual vSwap feature has been introduced => now vSwap does not require free physical swap on the HN (PSBM-16764)
[pagecache] enhanced version of memory scheduler: shadow gangs, reclaimer takes timestamps into the consideration, etc. (PSBM-15796)
- vmscan priority is calculated for all LRU vectors according to its memory usage/limit and age of LRU lists.
- sysctls:
  - vm.usage_factor (default 2)
  - vm.shadow_factor (default 8)
  - vm.age_factor (default 8)
  - priority = 12 + usage * usage_factor / limit + shadow * shadow_factor / limit (for shadow part only) + age * age_factor / max_age
[ubc/dcache] fix endless oom postponing in dcache reclaimer (PSBM-17067, PSBM-17069)
[mm] the number of vmscan prios has been increased from 25 to 42. vmscan iterator has been fixed. (PSBM-15799)
[cpt] kernel panic has been fixed due to DEAD task restoration attempt (PCLIN-30483, PSBM-17107)
[mm] deadlock in kswapd near oom condition has been fixed (PSBM-17100)
[fuse] a missed fuse_file_put() has been added
[mm] a panic while using huge tables has been fixed (PSBM-17315)