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Linux/Documentation/ABI/testing/sysfs-driver-xen-blkback

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Diff markup

Differences between /Documentation/ABI/testing/sysfs-driver-xen-blkback (Version linux-6.12-rc7) and /Documentation/ABI/testing/sysfs-driver-xen-blkback (Version linux-4.9.337)


  1 What:           /sys/module/xen_blkback/parame      1 What:           /sys/module/xen_blkback/parameters/max_buffer_pages
  2 Date:           March 2013                          2 Date:           March 2013
  3 KernelVersion:  3.11                                3 KernelVersion:  3.11
  4 Contact:        Roger Pau Monné <roger.pau@cit      4 Contact:        Roger Pau Monné <roger.pau@citrix.com>
  5 Description:                                        5 Description:
  6                 Maximum number of free pages t      6                 Maximum number of free pages to keep in each block
  7                 backend buffer.                     7                 backend buffer.
  8                                                     8 
  9 What:           /sys/module/xen_blkback/parame      9 What:           /sys/module/xen_blkback/parameters/max_persistent_grants
 10 Date:           March 2013                         10 Date:           March 2013
 11 KernelVersion:  3.11                               11 KernelVersion:  3.11
 12 Contact:        Roger Pau Monné <roger.pau@cit     12 Contact:        Roger Pau Monné <roger.pau@citrix.com>
 13 Description:                                       13 Description:
 14                 Maximum number of grants to ma     14                 Maximum number of grants to map persistently in
 15                 blkback. If the frontend tries     15                 blkback. If the frontend tries to use more than
 16                 max_persistent_grants, the LRU     16                 max_persistent_grants, the LRU kicks in and starts
 17                 removing 5% of max_persistent_     17                 removing 5% of max_persistent_grants every 100ms.
 18                                                << 
 19 What:           /sys/module/xen_blkback/parame << 
 20 Date:           August 2018                    << 
 21 KernelVersion:  4.19                           << 
 22 Contact:        Roger Pau Monné <roger.pau@cit << 
 23 Description:                                   << 
 24                 How long a persistent grant is << 
 25                 allocated without being in use << 
 26                 seconds, 0 means indefinitely  << 
 27                 The default is 60 seconds.     << 
 28                                                << 
 29 What:           /sys/module/xen_blkback/parame << 
 30 Date:           December 2019                  << 
 31 KernelVersion:  5.6                            << 
 32 Contact:        Maximilian Heyne <mheyne@amazon << 
 33 Description:                                   << 
 34                 When memory pressure is report << 
 35                 controls the duration in milli << 
 36                 cache any page not backed by a << 
 37                 The default is 10ms.           << 
 38                                                << 
 39 What:           /sys/module/xen_blkback/parame << 
 40 Date:           September 2020                 << 
 41 KernelVersion:  5.10                           << 
 42 Contact:        Maximilian Heyne <mheyne@amazon << 
 43 Description:                                   << 
 44                 Whether to enable the persiste << 
 45                 that this option only takes ef << 
 46                 The default is Y (enable).     << 
                                                      

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