From: Hugo Mills <hugo@carfax.org.uk>
To: linux-btrfs@vger.kernel.org
Cc: Hugo Mills <hugo@carfax.org.uk>
Subject: [patch v2 3/4] Add an option to show ISO, binary or raw bytes counts using show.
Date: Thu, 21 Oct 2010 20:01:38 +0100 [thread overview]
Message-ID: <20101021190203.205680210@carfax.org.uk> (raw)
In-Reply-To: 20101021190135.757086134@carfax.org.uk
Change btrfs filesystem show to allow the user to control the scales
used for sizes in the output.
Signed-off-by: Hugo Mills <hugo@carfax.org.uk>
---
btrfs.c | 2 +-
btrfs_cmds.c | 45 ++++++++++++++++++++++++++++++++++++++-------
man/btrfs.8.in | 10 ++++++++++
3 files changed, 49 insertions(+), 8 deletions(-)
Index: btrfs-progs-unstable/btrfs.c
===================================================================
--- btrfs-progs-unstable.orig/btrfs.c 2010-10-20 20:03:37.000000000 +0100
+++ btrfs-progs-unstable/btrfs.c 2010-10-20 20:11:03.000000000 +0100
@@ -83,7 +83,7 @@
"will occupe all available space on the device."
},
{ do_show_filesystem, 999,
- "filesystem show", "[<uuid>|<label>]\n"
+ "filesystem show", "[options] [<uuid>|<label>]\n"
"Show the info of a btrfs filesystem. If no <uuid> or <label>\n"
"is passed, info of all the btrfs filesystem are shown."
},
Index: btrfs-progs-unstable/btrfs_cmds.c
===================================================================
--- btrfs-progs-unstable.orig/btrfs_cmds.c 2010-10-20 20:03:37.000000000 +0100
+++ btrfs-progs-unstable/btrfs_cmds.c 2010-10-20 20:08:00.000000000 +0100
@@ -617,7 +617,7 @@
return 0;
}
-static void print_one_uuid(struct btrfs_fs_devices *fs_devices)
+static void print_one_uuid(struct btrfs_fs_devices *fs_devices, int format)
{
char uuidbuf[37];
struct list_head *cur;
@@ -634,8 +634,7 @@
else
printf("Label: none ");
- super_bytes_used = pretty_sizes(device->super_bytes_used,
- PRETTY_SIZE_RAW);
+ super_bytes_used = pretty_sizes(device->super_bytes_used, format);
total = device->total_devs;
printf(" uuid: %s\n\tTotal devices %llu FS bytes used %s\n", uuidbuf,
@@ -647,8 +646,8 @@
char *total_bytes;
char *bytes_used;
device = list_entry(cur, struct btrfs_device, dev_list);
- total_bytes = pretty_sizes(device->total_bytes, PRETTY_SIZE_RAW);
- bytes_used = pretty_sizes(device->bytes_used, PRETTY_SIZE_RAW);
+ total_bytes = pretty_sizes(device->total_bytes, format);
+ bytes_used = pretty_sizes(device->bytes_used, format);
printf("\tdevid %4llu size %s used %s path %s\n",
(unsigned long long)device->devid,
total_bytes, bytes_used, device->name);
@@ -662,13 +661,45 @@
printf("\n");
}
+const struct option show_options[] = {
+ { "human-readable", 0, NULL, 'h' },
+ { "si", 0, NULL, 'H' },
+ { NULL, 0, NULL, 0 }
+};
+
int do_show_filesystem(int argc, char **argv)
{
struct list_head *all_uuids;
struct btrfs_fs_devices *fs_devices;
struct list_head *cur_uuid;
- char *search = argv[1];
+ char *search;
int ret;
+ int format = PRETTY_SIZE_RAW;
+
+ optind = 1;
+ while(1) {
+ int c = getopt_long(argc, argv, "hH", show_options, NULL);
+ if (c < 0)
+ break;
+ switch(c) {
+ case 'h':
+ format = PRETTY_SIZE_BINARY;
+ break;
+ case 'H':
+ format = PRETTY_SIZE_ISO;
+ break;
+ default:
+ fprintf(stderr, "Invalid arguments for show\n");
+ free(argv);
+ return 1;
+ }
+ }
+ if (argc - optind > 1) {
+ fprintf(stderr, "Too many arguments for show\n");
+ free(argv);
+ return 1;
+ }
+ search = argv[optind];
ret = btrfs_scan_one_dir("/dev", 0);
if (ret){
@@ -682,7 +713,7 @@
list);
if (search && uuid_search(fs_devices, search) == 0)
continue;
- print_one_uuid(fs_devices);
+ print_one_uuid(fs_devices, format);
}
printf("%s\n", BTRFS_BUILD_VERSION);
return 0;
Index: btrfs-progs-unstable/man/btrfs.8.in
===================================================================
--- btrfs-progs-unstable.orig/man/btrfs.8.in 2010-10-20 20:03:53.000000000 +0100
+++ btrfs-progs-unstable/man/btrfs.8.in 2010-10-20 20:08:15.000000000 +0100
@@ -23,6 +23,8 @@
.PP
\fBbtrfs\fP \fBfilesystem df\fP\fI [options] <path>\fP
.PP
+\fBbtrfs\fP \fBfilesystem show\fP\fI [options] [<uuid>|<label>]\fP
+.PP
\fBbtrfs\fP \fBdevice scan\fP\fI [<device> [<device>..]]\fP
.PP
\fBbtrfs\fP \fBdevice show\fP\fI <dev>|<label> [<dev>|<label>...]\fP
@@ -151,6 +153,14 @@
-H, --si Use powers of 10^3 (1000) to report sizes, in SI multiples.
.TP
+\fBfilesystem show\fR [options] [<uuid>|<label>]\fR
+Show the usage of each device in the btrfs filesystem with the given
+uuid or label, or all filesystems if no uuid or label is provided.
+Options:
+-h, --human-readable Use powers of 2^10 (1024) to report sizes.
+-H, --si Use powers of 10^3 (1000) to report sizes, in SI multiples.
+.TP
+
\fBdevice balance\fR \fI<path>\fR
Balance the chunks of the filesystem identified by \fI<path>\fR
across the devices.
--
=== Hugo Mills: hugo@... carfax.org.uk | darksatanic.net | lug.org.uk ===
PGP key: 515C238D from wwwkeys.eu.pgp.net or http://www.carfax.org.uk
--- I spent most of my money on drink, women and fast cars. The ---
rest I wasted. -- James Hunt
next prev parent reply other threads:[~2010-10-21 19:01 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-10-21 19:01 [patch v2 0/4] Size reporting in userspace tools Hugo Mills
2010-10-21 19:01 ` [patch v2 1/4] Update pretty-printer for different systems of counting multiples Hugo Mills
2010-10-21 19:01 ` [patch v2 2/4] Add an option to show ISO, binary or raw bytes counts using df Hugo Mills
2010-10-22 7:55 ` Goffredo Baroncelli
2010-10-21 19:01 ` Hugo Mills [this message]
2010-10-22 7:57 ` [patch v2 3/4] Add an option to show ISO, binary or raw bytes counts using show Goffredo Baroncelli
2010-10-21 19:01 ` [patch v2 4/4] Add an option to show ISO, binary or raw bytes counts using btrfs-show Hugo Mills
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