xfs: convert log tail checking to a warning
authorDave Chinner <dchinner@redhat.com>
Fri, 8 Apr 2011 02:45:07 +0000 (12:45 +1000)
committerDave Chinner <david@fromorbit.com>
Fri, 8 Apr 2011 02:45:07 +0000 (12:45 +1000)
commitda8a1a4a4dfc1ead12c343b992fc8300a22d33d0
tree903485755dcfdd4908cc1d33c1af0e69f45b79a5
parentbe65b18a10e62321c5ba09a1dc0f70babeb0eba1
xfs: convert log tail checking to a warning

On the Power platform, the log tail debug checks fire excessively
causing the system to panic early in testing. The debug checks are
known to be racy, though on x86_64 there is no evidence that they
trigger at all.

We want to keep the checks active on debug systems to alert us to
problems with log space accounting, but we need to reduce the impact
of a racy check on testing on the Power platform.

As a result, convert the ASSERT conditions to warnings, and
allow them to fire only once per filesystem mount. This will prevent
false positives from interfering with testing, whilst still
providing us with the indication that they may be a problem with log
space accounting should that occur.

Signed-off-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Alex Elder <aelder@sgi.com>
fs/xfs/xfs_log.c
fs/xfs/xfs_log_priv.h