SVNews r327406

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2017-12-31 03:15:45 - r327406 by mjg (Mateusz Guzik)

Complete list of files affected by revision r327406:

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   Contents     MODIFY   /stable/11  
  History   Contents   Diff   MODIFY   /stable/11/sys/fs/tmpfs/tmpfs_subr.c  

Commit message:

MFC r324127:

  tmpfs: skip zero-sized page count updates

  Such updates consisted of vast majority of modificiations, especially
  in tmpfs_reg_resize.

  For the case where page count did no change and the size grew we only
  need to update tn_size. Use this fact to avoid vm object lock/relock.


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