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2023-12-09 b22da3d8526a935aa31e086e63f60ff3246cb61c

 kernel/include/uapi/linux/dqblk_xfs.h
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@@ -61,12 +61,16 @@
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 	__u64		d_ino_softlimit;/* preferred inode limit */
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 	__u64		d_bcount;	/* # disk blocks owned by the user */
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 	__u64		d_icount;	/* # inodes owned by the user */
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-	__s32		d_itimer;	/* zero if within inode limits */
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-					/* if not, we refuse service */
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+	__s32		d_itimer;	/* Zero if within inode limits. If
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+					 * not, we refuse service at this time
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+					 * (in seconds since Unix epoch) */
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 	__s32		d_btimer;	/* similar to above; for disk blocks */
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 	__u16	  	d_iwarns;       /* # warnings issued wrt num inodes */
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 	__u16	  	d_bwarns;       /* # warnings issued wrt disk blocks */
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-	__s32		d_padding2;	/* padding2 - for future use */
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+	__s8		d_itimer_hi;	/* upper 8 bits of timer values */
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+	__s8		d_btimer_hi;
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+	__s8		d_rtbtimer_hi;
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+	__s8		d_padding2;	/* padding2 - for future use */
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 	__u64		d_rtb_hardlimit;/* absolute limit on realtime blks */
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 	__u64		d_rtb_softlimit;/* preferred limit on RT disk blks */
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 	__u64		d_rtbcount;	/* # realtime blocks owned */
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@@ -122,6 +126,12 @@
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 #define FS_DQ_ACCT_MASK		(FS_DQ_BCOUNT | FS_DQ_ICOUNT | FS_DQ_RTBCOUNT)
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 /*
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+ * Quota expiration timestamps are 40-bit signed integers, with the upper 8
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+ * bits encoded in the _hi fields.
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+ */
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+#define FS_DQ_BIGTIME		(1<<15)
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+
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+/*
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  * Various flags related to quotactl(2).
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  */
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 #define FS_QUOTA_UDQ_ACCT	(1<<0)  /* user quota accounting */