From: Darrick J. Wong <darrick.wong@xxxxxxxxxx>
Add a -g switch to show only a per-group summary.
Signed-off-by: Darrick J. Wong <darrick.wong@xxxxxxxxxx>
---
man/man8/xfs_spaceman.8 | 8 +++++++-
spaceman/freesp.c | 27 ++++++++++++++++++++++++---
2 files changed, 31 insertions(+), 4 deletions(-)
diff --git a/man/man8/xfs_spaceman.8 b/man/man8/xfs_spaceman.8
index c1d19c0..a57a0c3 100644
--- a/man/man8/xfs_spaceman.8
+++ b/man/man8/xfs_spaceman.8
@@ -25,7 +25,7 @@ then the program exits.
.SH COMMANDS
.TP
-.BI "freesp [ \-sr ] [ \-b | \-e bsize | \-h h1 [ \-m bmult ]] [-a agno]"
+.BI "freesp [ \-srg ] [ \-b | \-e bsize | \-h h1 [ \-m bmult ]] [-a agno]"
With no arguments,
.B freesp
shows a histogram of all free space extents in the filesystem.
@@ -49,6 +49,12 @@ option may be specified multiple times.
A summary of free space information will be printed if the
.B -s
option is given.
+The
+.B -g
+option prints a brief per-AG summary of the free space found in that AG.
+If
+.B -r
+is specified it will also report on free space in the realtime device.
.TP
.BR "help [ " command " ]"
Display a brief description of one or all commands.
diff --git a/spaceman/freesp.c b/spaceman/freesp.c
index 42c30d6..36bf04a 100644
--- a/spaceman/freesp.c
+++ b/spaceman/freesp.c
@@ -42,6 +42,7 @@ static int histcount;
static int multsize;
static int seen1;
static int summaryflag;
+static int gflag;
static bool rtflag;
static long long totblocks;
static long long totexts;
@@ -159,6 +160,8 @@ scan_ag(
off64_t bperag;
off64_t aglen;
xfs_agblock_t agbno;
+ unsigned long long freeblks = 0;
+ unsigned long long freeexts = 0;
int ret;
int i;
@@ -212,6 +215,8 @@ _("%s: FS_IOC_GETFSMAP [\"%s\"]: %s\n"),
agbno = (extent->fmr_physical - (bperag * agno)) /
blocksize;
aglen = extent->fmr_length / blocksize;
+ freeblks += aglen;
+ freeexts++;
addtohist(agno, agbno, aglen);
}
@@ -221,6 +226,15 @@ _("%s: FS_IOC_GETFSMAP [\"%s\"]: %s\n"),
break;
fsmap_advance(fsmap);
}
+
+ if (gflag) {
+ if (agno == NULLAGNUMBER)
+ printf(_(" rtdev %10llu %10llu\n"), freeexts,
+ freeblks);
+ else
+ printf(_("%10u %10llu %10llu\n"), agno, freeexts,
+ freeblks);
+ }
}
static void
aglistadd(
@@ -245,7 +259,7 @@ init(
aglist = NULL;
hist = NULL;
rtflag = false;
- while ((c = getopt(argc, argv, "a:bde:h:m:rs")) != EOF) {
+ while ((c = getopt(argc, argv, "a:bde:gh:m:rs")) != EOF) {
switch (c) {
case 'a':
aglistadd(optarg);
@@ -265,6 +279,10 @@ init(
equalsize = atoi(optarg);
speced = 1;
break;
+ case 'g':
+ histcount = 0;
+ gflag++;
+ break;
case 'h':
if (speced && !histcount)
return 0;
@@ -307,13 +325,15 @@ freesp_f(
if (!init(argc, argv))
return 0;
+ if (gflag)
+ printf(_(" AG extents blocks\n"));
if (rtflag)
scan_ag(NULLAGNUMBER);
for (agno = 0; !rtflag && agno < file->geom.agcount; agno++) {
if (inaglist(agno))
scan_ag(agno);
}
- if (histcount)
+ if (histcount && !gflag)
printhist();
if (summaryflag) {
printf(_("total free extents %lld\n"), totexts);
@@ -335,10 +355,11 @@ freesp_help(void)
"\n"
"Examine filesystem free space\n"
"\n"
-"Options: [-bcds] [-a agno] [-e bsize] [-h h1]... [-m bmult]\n"
+"Options: [-bcdgs] [-a agno] [-e bsize] [-h h1]... [-m bmult]\n"
"\n"
" -b -- binary histogram bin size\n"
" -d -- debug output\n"
+" -g -- print per-AG summary\n"
" -r -- display realtime device free space information\n"
" -s -- emit freespace summary information\n"
" -a agno -- scan only the given AG agno\n"
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