[GFS2] Speed up scanning of glocks

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I noticed the gfs2_scand seemed to be taking a lot of CPU,
so in order to cut that down a bit, here is a patch. Firstly
the type of a glock is a constant during its lifetime, so that
its possible to check this without needing locking. I've moved
the (common) case of testing for an inode glock outside of
the glmutex lock.

Also there was a mutex left over from when the glock cache was
master of the inode cache. That isn't required any more so I've
removed that too.

There is probably scope for further speed ups in the future
in this area.

Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>

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This commit is contained in:

Steven Whitehouse 2006-08-24 17:03:05 -04:00

parent 166afccd71

commit a2242db090

3 changed files with 5 additions and 21 deletions

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24

fs/gfs2/glock.c

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1

fs/gfs2/incore.h

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1

fs/gfs2/ops_fstype.c

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