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From abc0f20536e3bc1505f575f452c55585c34f6e06 Mon Sep 17 00:00:00 2001
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From: "Darrick J. Wong" <darrick.wong@oracle.com>
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Date: Tue, 10 Nov 2020 15:11:43 -0500
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Subject: [PATCH] xfs: refactor default quota grace period setting code
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Source kernel commit: ccc8e771aa7a80eb047fc263780816ca76dd02a6
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Refactor the code that sets the default quota grace period into a helper
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function so that we can override the ondisk behavior later.
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Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
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Reviewed-by: Amir Goldstein <amir73il@gmail.com>
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Reviewed-by: Christoph Hellwig <hch@lst.de>
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Reviewed-by: Allison Collins <allison.henderson@oracle.com>
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Reviewed-by: Dave Chinner <dchinner@redhat.com>
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Signed-off-by: Eric Sandeen <sandeen@sandeen.net>
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---
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diff --git a/libxfs/xfs_format.h b/libxfs/xfs_format.h
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index c67bd61..8858341 100644
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--- a/libxfs/xfs_format.h
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+++ b/libxfs/xfs_format.h
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@@ -1190,6 +1190,11 @@ static inline void xfs_dinode_put_rdev(struct xfs_dinode *dip, xfs_dev_t rdev)
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* been reached, and therefore no expiration has been set. Therefore, the
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* ondisk min and max defined here can be used directly to constrain the incore
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* quota expiration timestamps on a Unix system.
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+ *
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+ * The grace period for each quota type is stored in the root dquot (id = 0)
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+ * and is applied to a non-root dquot when it exceeds the soft or hard limits.
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+ * The length of quota grace periods are unsigned 32-bit quantities measured in
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+ * units of seconds. A value of zero means to use the default period.
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*/
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/*
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@@ -1204,6 +1209,14 @@ static inline void xfs_dinode_put_rdev(struct xfs_dinode *dip, xfs_dev_t rdev)
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*/
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#define XFS_DQ_LEGACY_EXPIRY_MAX ((int64_t)U32_MAX)
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+/*
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+ * Default quota grace periods, ranging from zero (use the compiled defaults)
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+ * to ~136 years. These are applied to a non-root dquot that has exceeded
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+ * either limit.
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+ */
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+#define XFS_DQ_GRACE_MIN ((int64_t)0)
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+#define XFS_DQ_GRACE_MAX ((int64_t)U32_MAX)
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+
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/*
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* This is the main portion of the on-disk representation of quota
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* information for a user. This is the q_core of the xfs_dquot_t that
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