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| author | Karel Zak | 2018-10-16 15:52:13 +0200 |
|---|---|---|
| committer | Karel Zak | 2018-12-07 12:32:57 +0100 |
| commit | 93c687d895752582bd95ef52a53684b346f2cc70 (patch) | |
| tree | 799d203808d95026af6cc5ba0adbe90454cb1ba0 | |
| parent | lsblk: reorder functions (diff) | |
| download | kernel-qcow2-util-linux-93c687d895752582bd95ef52a53684b346f2cc70.tar.gz kernel-qcow2-util-linux-93c687d895752582bd95ef52a53684b346f2cc70.tar.xz kernel-qcow2-util-linux-93c687d895752582bd95ef52a53684b346f2cc70.zip | |
lib/sysfs: add function to detect partitioned devices
Signed-off-by: Karel Zak <kzak@redhat.com>
| -rw-r--r-- | include/sysfs.h | 1 | ||||
| -rw-r--r-- | lib/sysfs.c | 14 |
2 files changed, 15 insertions, 0 deletions
diff --git a/include/sysfs.h b/include/sysfs.h index 74f69fb9c..edda8ca99 100644 --- a/include/sysfs.h +++ b/include/sysfs.h @@ -97,6 +97,7 @@ dev_t sysfs_devname_to_devno(const char *name); dev_t __sysfs_devname_to_devno(const char *prefix, const char *name, const char *parent); char *sysfs_devno_to_devpath(dev_t devno, char *buf, size_t bufsiz); char *sysfs_devno_to_devname(dev_t devno, char *buf, size_t bufsiz); +int sysfs_devno_count_partitions(dev_t devno); int sysfs_blkdev_scsi_get_hctl(struct path_cxt *pc, int *h, int *c, int *t, int *l); char *sysfs_blkdev_scsi_host_strdup_attribute(struct path_cxt *pc, diff --git a/lib/sysfs.c b/lib/sysfs.c index 626451bdd..6916c2584 100644 --- a/lib/sysfs.c +++ b/lib/sysfs.c @@ -999,6 +999,20 @@ char *sysfs_devno_to_devname(dev_t devno, char *buf, size_t bufsiz) return res; } +int sysfs_devno_count_partitions(dev_t devno) +{ + struct path_cxt *pc = ul_new_sysfs_path(devno, NULL, NULL); + int n = 0; + + if (pc) { + char buf[PATH_MAX + 1]; + char *name = sysfs_blkdev_get_name(pc, buf, sizeof(buf)); + + n = sysfs_blkdev_count_partitions(pc, name); + ul_unref_path(pc); + } + return n; +} #ifdef TEST_PROGRAM_SYSFS |