• Linus Torvalds's avatar
    Merge tag 'gfs2-4.11.fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/gfs2/linux-gfs2 · 9763dd6f
    Linus Torvalds authored
    Pull GFS2 updates from Robert Peterson:
     "We've got eight GFS2 patches for this merge window:
       - Andy Price submitted a patch to make gfs2_write_full_page a static
       - Dan Carpenter submitted a patch to fix a ERR_PTR thinko.
      Three patches fix bugs related to deleting very large files, which
      cause GFS2 to run out of journal space:
       - The first one prevents GFS2 delete operation from requesting too
         much journal space.
       - The second one fixes a problem whereby GFS2 can hang because it
         wasn't taking journal space demand into its calculations.
       - The third one wakes up IO waiters when a flush is done to restart
         processes stuck waiting for journal space to become available.
      The final three patches are a performance improvement related to
      spin_lock contention between multiple writers:
       - The "tr_touched" variable was switched to a flag to be more atomic
         and eliminate the possibility of some races.
       - Function meta_lo_add was moved inline with its only caller to make
         the code more readable and efficient.
       - Contention on the gfs2_log_lock spinlock was greatly reduced by
         avoiding the lock altogether in cases where we don't really need
         it: buffers that already appear in the appropriate metadata list
         for the journal. Many thanks to Steve Whitehouse for the ideas and
         principles behind these patches"
    * tag 'gfs2-4.11.fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/gfs2/linux-gfs2:
      gfs2: Make gfs2_write_full_page static
      GFS2: Reduce contention on gfs2_log_lock
      GFS2: Inline function meta_lo_add
      GFS2: Switch tr_touched to flag in transaction
      GFS2: Wake up io waiters whenever a flush is done
      GFS2: Made logd daemon take into account log demand
      GFS2: Limit number of transaction blocks requested for truncates
      GFS2: Fix reference to ERR_PTR in gfs2_glock_iter_next
aops.c 32.2 KB