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| author | Karel Zak | 2010-01-20 21:18:15 +0100 |
|---|---|---|
| committer | Karel Zak | 2010-01-21 00:16:19 +0100 |
| commit | e3d8933aaa1786ed78f06e5c9792d2167801d48e (patch) | |
| tree | 0ecb2b2140bed95e63bdb5888326d2aecd6f2ca8 /misc-utils/blkid.c | |
| parent | libblkid: rewrite blkid_probe_get_buffer() (diff) | |
| download | kernel-qcow2-util-linux-e3d8933aaa1786ed78f06e5c9792d2167801d48e.tar.gz kernel-qcow2-util-linux-e3d8933aaa1786ed78f06e5c9792d2167801d48e.tar.xz kernel-qcow2-util-linux-e3d8933aaa1786ed78f06e5c9792d2167801d48e.zip | |
blkid: probe for PT, don't probe for FS on small whole-disks
* blkid(8) in low-level mode probes for PT now (blkid is replacement
for devkit-disks-part-id)
* add ID_PART_TABLE_TYPE=<name> to blkid(8) udev output
* don't probe for FS/RAIDs on small devices when PT is detected
Signed-off-by: Karel Zak <kzak@redhat.com>
Diffstat (limited to 'misc-utils/blkid.c')
| -rw-r--r-- | misc-utils/blkid.c | 40 |
1 files changed, 35 insertions, 5 deletions
diff --git a/misc-utils/blkid.c b/misc-utils/blkid.c index 6e055a953..03e3b8075 100644 --- a/misc-utils/blkid.c +++ b/misc-utils/blkid.c @@ -255,7 +255,12 @@ static void print_udev_format(const char *name, const char *value, size_t sz) blkid_encode_string(value, enc, sizeof(enc)); printf("ID_FS_%s_ENC=%s\n", name, enc); - } + + } else if (!strcmp(name, "PTTYPE")) + printf("ID_PART_TABLE_TYPE=%s\n", value); + + /* TODO: ID_PART_ENTRY_{UUID,NAME,FLAG} */ + else printf("ID_FS_%s=%s\n", name, value); } @@ -410,6 +415,7 @@ static int lowprobe_device(blkid_probe pr, const char *devname, char *show[], size_t len; int fd; int rc = 0; + struct stat st; fd = open(devname, O_RDONLY); if (fd < 0) @@ -417,9 +423,35 @@ static int lowprobe_device(blkid_probe pr, const char *devname, char *show[], if (blkid_probe_set_device(pr, fd, offset, size)) goto done; - rc = blkid_do_safeprobe(pr); - if (rc) + + if (fstat(fd, &st)) goto done; + /* + * partitions probing + */ + blkid_probe_enable_superblocks(pr, 0); /* enabled by default ;-( */ + + blkid_probe_enable_partitions(pr, 1); + rc = blkid_do_fullprobe(pr); + blkid_probe_enable_partitions(pr, 0); + + if (rc < 0) + goto done; /* -1 = error, 1 = nothing, 0 = succes */ + + /* + * Don't probe for FS/RAIDs on small devices + */ + if (rc || S_ISCHR(st.st_mode) || + blkid_probe_get_size(pr) > 1024 * 1440) { + /* + * filesystems/RAIDs probing + */ + blkid_probe_enable_superblocks(pr, 1); + + rc = blkid_do_safeprobe(pr); + if (rc < 0) + goto done; + } nvals = blkid_probe_numof_values(pr); @@ -648,8 +680,6 @@ int main(int argc, char **argv) if (!pr) goto exit; - blkid_probe_enable_superblocks(pr, 1); - blkid_probe_set_superblocks_flags(pr, BLKID_SUBLKS_LABEL | BLKID_SUBLKS_UUID | BLKID_SUBLKS_TYPE | BLKID_SUBLKS_SECTYPE | |