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[Cluster-devel] [GFS2][Patch 0/10] GFS2 performance tweaks

Hi GFS2 Folks,

The following is a set of ten patches designed to give gfs2 somewhat
better performance than before.  Some are trivial and may or may not
have a real impact on performance.  I'll let Steve Whitehouse decide
which ones should go upstream and which ones aren't worth it.
The patches may be summarized as follows:

1. Journal extent mapping
2. Get rid of useless "found" variable in quota.c
3. Run through full bitmaps quicker in gfs2_bitfit
4. Get rid of sd_statfs_mutex
5. Shortcut in gfs2_write_alloc_required if writing past eof.
6. Reorganize function gfs2_glmutex_lock
7. Only fetch the dinode once in block_map
8. Only find indirect pointer buffers once in block_map
9. Move meta_inval to glops.c and declare static, more attach_bufdata
   to trans.c and declare static.
10. Function meta_read optimization.


Bob Peterson
Red Hat GFS

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