git: kernel - Fix memory starvation issue w/tmpfs

Matthew Dillon dillon at crater.dragonflybsd.org
Wed Dec 5 11:41:42 PST 2012


commit a780f9224b71e3886dceb5b107f798ea741eb176
Author: Matthew Dillon <dillon at apollo.backplane.com>
Date:   Wed Dec 5 11:40:01 2012 -0800

    kernel - Fix memory starvation issue w/tmpfs
    
    * TMPFS relies on the pagedaemon to retire dirty pages to swap.  The normal
      buffer cache flushing won't do the job (nor do we want it to).  To avoid
      starving the system we change bio_page_alloc() to not dig into the
      system reserve when allocating pages for TMPFS.
    
    Reported-by: tuxillo (Antonio Huete)

Summary of changes:
 sys/kern/vfs_bio.c |   17 +++++++++++++----
 1 files changed, 13 insertions(+), 4 deletions(-)

http://gitweb.dragonflybsd.org/dragonfly.git/commitdiff/a780f9224b71e3886dceb5b107f798ea741eb176


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