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2009-09-08GFS2: Be extra careful about deallocating inodesSteven Whitehouse
There is a potential race in the inode deallocation code if two nodes try to deallocate the same inode at the same time. Most of the issue is solved by the iopen locking. There is still a small window which is not covered by the iopen lock. This patches fixes that and also makes the deallocation code more robust in the face of any errors in the rgrp bitmaps, or erroneous iopen callbacks from other nodes. This does introduce one extra disk read, but that is generally not an issue since its the same block that must be written to later in the deallocation process. The total disk accesses therefore stay the same, Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
2009-05-22GFS2: Clean up some file namesSteven Whitehouse
This patch renames the ops_*.c files which have no counterpart without the ops_ prefix in order to shorten the name and make it more readable. In addition, ops_address.h (which was very small) is moved into inode.h and inode.h is cleaned up by adding extern where required. Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>