quota: Keep which entries were set by SETQUOTA quotactl

[linux-2.6-omap-h63xx.git] / include / linux / quota.h

diff --git a/include/linux/quota.h b/include/linux/quota.h
index 75bf761caef2f187b772b54bf8130560a95c9d42..6d98885c16daf9032d48a31a5cb36bf333d81276 100644 (file)
--- a/include/linux/quota.h
+++ b/include/linux/quota.h
@@ -80,12 +80,21 @@
  * Quota structure used for communication with userspace via quotactl
  * Following flags are used to specify which fields are valid
  */
-#define QIF_BLIMITS    1
-#define QIF_SPACE      2
-#define QIF_ILIMITS    4
-#define QIF_INODES     8
-#define QIF_BTIME      16
-#define QIF_ITIME      32
+enum {
+       QIF_BLIMITS_B = 0,
+       QIF_SPACE_B,
+       QIF_ILIMITS_B,
+       QIF_INODES_B,
+       QIF_BTIME_B,
+       QIF_ITIME_B,
+};
+
+#define QIF_BLIMITS    (1 << QIF_BLIMITS_B)
+#define QIF_SPACE      (1 << QIF_SPACE_B)
+#define QIF_ILIMITS    (1 << QIF_ILIMITS_B)
+#define QIF_INODES     (1 << QIF_INODES_B)
+#define QIF_BTIME      (1 << QIF_BTIME_B)
+#define QIF_ITIME      (1 << QIF_ITIME_B)
 #define QIF_LIMITS     (QIF_BLIMITS | QIF_ILIMITS)
 #define QIF_USAGE      (QIF_SPACE | QIF_INODES)
 #define QIF_TIMES      (QIF_BTIME | QIF_ITIME)
@@ -242,6 +251,11 @@ extern struct dqstats dqstats;
 #define DQ_FAKE_B      3       /* no limits only usage */
 #define DQ_READ_B      4       /* dquot was read into memory */
 #define DQ_ACTIVE_B    5       /* dquot is active (dquot_release not called) */
+#define DQ_LASTSET_B   6       /* Following 6 bits (see QIF_) are reserved\
+                                * for the mask of entries set via SETQUOTA\
+                                * quotactl. They are set under dq_data_lock\
+                                * and the quota format handling dquot can\
+                                * clear them when it sees fit. */
 
 struct dquot {
        struct hlist_node dq_hash;      /* Hash list in memory */