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xfsprogs/SOURCES/xfsprogs-5.10.0-xfs_db-repo...

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From 344f38a9e5d0f938dae337c8c769853e6368d480 Mon Sep 17 00:00:00 2001
From: "Darrick J. Wong" <darrick.wong@oracle.com>
Date: Fri, 20 Nov 2020 17:03:28 -0500
Subject: [PATCH] xfs_db: report bigtime format timestamps
Report the large format timestamps in a human-readable manner if it is
possible to do so without loss of information.
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Eric Sandeen <sandeen@redhat.com>
Signed-off-by: Eric Sandeen <sandeen@sandeen.net>
---
diff --git a/db/fprint.c b/db/fprint.c
index 72ed55f..65accfd 100644
--- a/db/fprint.c
+++ b/db/fprint.c
@@ -112,6 +112,35 @@ fp_sarray(
return 1;
}
+static void
+fp_time64(
+ time64_t sec)
+{
+ time_t tt = sec;
+ time64_t tt_sec = tt;
+ char *c;
+
+ /*
+ * Stupid time_t shenanigans -- POSIX.1-2017 only requires that this
+ * type represent a time in seconds. Since we have no idea if our
+ * time64_t filesystem timestamps can actually be represented by the C
+ * library, we resort to converting the input value from time64_t to
+ * time_t and back to time64_t to check for information loss. If so,
+ * we print the raw value; otherwise we print a human-readable value.
+ */
+ if (tt_sec != sec)
+ goto raw;
+
+ c = ctime(&tt);
+ if (!c)
+ goto raw;
+
+ dbprintf("%24.24s", c);
+ return;
+raw:
+ dbprintf("%lld", sec);
+}
+
int
fp_time(
void *obj,
@@ -138,7 +167,7 @@ fp_time(
ts = obj + byteize(bitpos);
tv = libxfs_inode_from_disk_ts(obj, *ts);
- dbprintf("%24.24s", tv.tv_sec);
+ fp_time64(tv.tv_sec);
if (i < count - 1)
dbprintf(" ");
@@ -191,7 +220,8 @@ fp_qtimer(
int base,
int array)
{
- uint32_t sec;
+ struct xfs_disk_dquot *ddq = obj;
+ time64_t sec;
__be32 *t;
int bitpos;
int i;
@@ -204,9 +234,16 @@ fp_qtimer(
dbprintf("%d:", i + base);
t = obj + byteize(bitpos);
- sec = be32_to_cpu(*t);
+ sec = libxfs_dquot_from_disk_ts(ddq, *t);
- dbprintf("%u", sec);
+ /*
+ * Display the raw value if it's the default grace expiration
+ * period (root dquot) or if the quota has not expired.
+ */
+ if (ddq->d_id == 0 || sec == 0)
+ dbprintf("%lld", sec);
+ else
+ fp_time64(sec);
if (i < count - 1)
dbprintf(" ");
diff --git a/db/inode.c b/db/inode.c
index bbfee74..37c7dc0 100644
--- a/db/inode.c
+++ b/db/inode.c
@@ -172,10 +172,12 @@ const field_t inode_v3_flds[] = {
{ "cowextsz", FLDT_UINT1,
OI(COFF(flags2) + bitsz(uint64_t) - XFS_DIFLAG2_COWEXTSIZE_BIT-1), C1,
0, TYP_NONE },
+ { "bigtime", FLDT_UINT1,
+ OI(COFF(flags2) + bitsz(uint64_t) - XFS_DIFLAG2_BIGTIME_BIT - 1), C1,
+ 0, TYP_NONE },
{ NULL }
};
-
const field_t timestamp_flds[] = {
{ "sec", FLDT_TIME, OI(0), C1, 0, TYP_NONE },
{ "nsec", FLDT_NSEC, OI(0), C1, 0, TYP_NONE },
diff --git a/db/sb.c b/db/sb.c
index d63fc71..109fdc3 100644
--- a/db/sb.c
+++ b/db/sb.c
@@ -689,6 +689,8 @@ version_string(
strcat(s, ",REFLINK");
if (xfs_sb_version_hasinobtcounts(sbp))
strcat(s, ",INOBTCNT");
+ if (xfs_sb_version_hasbigtime(sbp))
+ strcat(s, ",BIGTIME");
return s;
}