[GFS2] Update locking in log.c

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Replace the lock_for_trans()/lock_for_flush() functions with an rwsem.
In fact the sd_log_flush_lock becomes an rwsem (the write part of it)
and is extended slightly to cover everything that the lock_for_flush()
used to cover. The read part of the lock is instead of lock_for_trans().

This corrects the races in the original code and reduces the code size.

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

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This commit is contained in:

Steven Whitehouse 2006-03-29 09:12:12 -05:00

parent 7aabffcab4

commit 484adff8a0

4 changed files with 22 additions and 59 deletions

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6

fs/gfs2/incore.h

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67

fs/gfs2/log.c

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4

fs/gfs2/ops_fstype.c

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4

fs/gfs2/trans.c

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