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Commit a210c1aa authored by Christoph Hellwig's avatar Christoph Hellwig Committed by Alex Elder
Browse files

xfs: implement quota warnings via netlink 



Wire up quota_send_warning to send quota warnings over netlink.
This is used by various desktops to show user quota warnings.

Tested by running the quota_nld daemon while running the xfstest
quota tests and observing the warnings.  I'll see how I can get a
more formal testcase for it written.

Signed-off-by: default avatarChristoph Hellwig <hch@lst.de>
Reviewed-by: default avatarDave Chinner <david@fromorbit.com>
Signed-off-by: default avatarAlex Elder <aelder@sgi.com>
parent 4d1f88d7

fs/xfs/quota/xfs_trans_dquot.c

+39 −10
Original line number Diff line number Diff line
@@ -589,6 +589,20 @@ xfs_trans_unreserve_and_mod_dquots( 
	}

}



STATIC void

xfs_quota_warn(

	struct xfs_mount	*mp,

	struct xfs_dquot	*dqp,

	int			type)

{

	/* no warnings for project quotas - we just return ENOSPC later */

	if (dqp->dq_flags & XFS_DQ_PROJ)

		return;

	quota_send_warning((dqp->dq_flags & XFS_DQ_USER) ? USRQUOTA : GRPQUOTA,

			   be32_to_cpu(dqp->q_core.d_id), mp->m_super->s_dev,

			   type);

}



/*

 * This reserves disk blocks and inodes against a dquot.

 * Flags indicate if the dquot is to be locked here and also
@@ -657,14 +671,22 @@ xfs_trans_dqresv( 
			 * nblks.

			 */

			if (hardlimit > 0ULL &&

			    hardlimit <= nblks + *resbcountp)

			    hardlimit <= nblks + *resbcountp) {

				xfs_quota_warn(mp, dqp, QUOTA_NL_BHARDWARN);

				goto error_return;

			}

			if (softlimit > 0ULL &&

			    softlimit <= nblks + *resbcountp &&

			    ((timer != 0 && get_seconds() > timer) ||

			     (warns != 0 && warns >= warnlimit)))

			    softlimit <= nblks + *resbcountp) {

				if ((timer != 0 && get_seconds() > timer) ||

				    (warns != 0 && warns >= warnlimit)) {

					xfs_quota_warn(mp, dqp,

						       QUOTA_NL_BSOFTLONGWARN);

					goto error_return;

				}



				xfs_quota_warn(mp, dqp, QUOTA_NL_BSOFTWARN);

			}

		}

		if (ninos > 0) {

			count = be64_to_cpu(dqp->q_core.d_icount);

			timer = be32_to_cpu(dqp->q_core.d_itimer);
@@ -677,13 +699,20 @@ xfs_trans_dqresv( 
			if (!softlimit)

				softlimit = q->qi_isoftlimit;



			if (hardlimit > 0ULL && count >= hardlimit)

			if (hardlimit > 0ULL && count >= hardlimit) {

				xfs_quota_warn(mp, dqp, QUOTA_NL_IHARDWARN);

				goto error_return;

			if (softlimit > 0ULL && count >= softlimit &&

			    ((timer != 0 && get_seconds() > timer) ||

			     (warns != 0 && warns >= warnlimit)))

			}

			if (softlimit > 0ULL && count >= softlimit) {

				if  ((timer != 0 && get_seconds() > timer) ||

				     (warns != 0 && warns >= warnlimit)) {

					xfs_quota_warn(mp, dqp,

						       QUOTA_NL_ISOFTLONGWARN);

					goto error_return;

				}

				xfs_quota_warn(mp, dqp, QUOTA_NL_ISOFTWARN);

			}

		}

	}



	/*