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[XFS] Sanitise xfs_log_force error checking.
xfs_log_force() is declared to return an error, but we almost never check it. We don't need to check it in most cases; if there's a log I/O error then we'll be shutting down the filesystem anyway and that means we'll catch the error somewhere else. However, on certain calls we should be returning an error - sync transactions, fsync, sync writes, etc. so this isn't a pure black and white distinction. Hence make xfs_log_force() a void function that issues a warning to the syslog on error, and call _xfs_log_force() in all the places where we actually care about the error status returned. SGI-PV: 980084 SGI-Modid: xfs-linux-melb:xfs-kern:30832a Signed-off-by: David Chinner <dgc@sgi.com> Signed-off-by: Niv Sardi <xaiki@sgi.com> Signed-off-by: Lachlan McIlroy <lachlan@sgi.com>
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@ -382,7 +382,27 @@ _xfs_log_force(
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return xlog_state_sync_all(log, flags, log_flushed);
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else
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return xlog_state_sync(log, lsn, flags, log_flushed);
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} /* xfs_log_force */
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} /* _xfs_log_force */
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/*
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* Wrapper for _xfs_log_force(), to be used when caller doesn't care
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* about errors or whether the log was flushed or not. This is the normal
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* interface to use when trying to unpin items or move the log forward.
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*/
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void
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xfs_log_force(
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xfs_mount_t *mp,
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xfs_lsn_t lsn,
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uint flags)
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{
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int error;
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error = _xfs_log_force(mp, lsn, flags, NULL);
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if (error) {
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xfs_fs_cmn_err(CE_WARN, mp, "xfs_log_force: "
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"error %d returned.", error);
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}
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}
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/*
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* Attaches a new iclog I/O completion callback routine during
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@ -634,7 +654,8 @@ xfs_log_unmount_write(xfs_mount_t *mp)
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if (mp->m_flags & XFS_MOUNT_RDONLY)
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return 0;
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xfs_log_force(mp, 0, XFS_LOG_FORCE|XFS_LOG_SYNC);
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error = _xfs_log_force(mp, 0, XFS_LOG_FORCE|XFS_LOG_SYNC, NULL);
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ASSERT(error || !(XLOG_FORCED_SHUTDOWN(log)));
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#ifdef DEBUG
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first_iclog = iclog = log->l_iclog;
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@ -142,8 +142,9 @@ int _xfs_log_force(struct xfs_mount *mp,
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xfs_lsn_t lsn,
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uint flags,
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int *log_forced);
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#define xfs_log_force(mp, lsn, flags) \
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_xfs_log_force(mp, lsn, flags, NULL);
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void xfs_log_force(struct xfs_mount *mp,
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xfs_lsn_t lsn,
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uint flags);
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int xfs_log_mount(struct xfs_mount *mp,
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struct xfs_buftarg *log_target,
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xfs_daddr_t start_block,
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@ -126,11 +126,11 @@ xfs_write_sync_logforce(
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* when we return.
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*/
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if (iip && iip->ili_last_lsn) {
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xfs_log_force(mp, iip->ili_last_lsn,
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XFS_LOG_FORCE | XFS_LOG_SYNC);
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error = _xfs_log_force(mp, iip->ili_last_lsn,
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XFS_LOG_FORCE | XFS_LOG_SYNC, NULL);
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} else if (xfs_ipincount(ip) > 0) {
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xfs_log_force(mp, (xfs_lsn_t)0,
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XFS_LOG_FORCE | XFS_LOG_SYNC);
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error = _xfs_log_force(mp, (xfs_lsn_t)0,
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XFS_LOG_FORCE | XFS_LOG_SYNC, NULL);
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}
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} else {
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