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authorKarel Zak2018-12-10 11:39:08 +0100
committerKarel Zak2018-12-10 11:39:08 +0100
commit1dae161c839ead8a642b74f432e0f82bb5f5fdd2 (patch)
treea6fd41e8f992e106cdf94f34c2f4bf0c7905a420 /libmount
parentlsblk: add --merge (diff)
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libmount: export mnt_guess_system_root() by API
Signed-off-by: Karel Zak <kzak@redhat.com>
Diffstat (limited to 'libmount')
-rw-r--r--libmount/docs/libmount-sections.txt1
-rw-r--r--libmount/src/libmount.h.in2
-rw-r--r--libmount/src/libmount.sym4
-rw-r--r--libmount/src/mountP.h1
-rw-r--r--libmount/src/utils.c7
5 files changed, 13 insertions, 2 deletions
diff --git a/libmount/docs/libmount-sections.txt b/libmount/docs/libmount-sections.txt
index 811726bb2..a046fb387 100644
--- a/libmount/docs/libmount-sections.txt
+++ b/libmount/docs/libmount-sections.txt
@@ -398,6 +398,7 @@ mnt_get_fstab_path
mnt_get_mountpoint
mnt_get_mtab_path
mnt_get_swaps_path
+mnt_guess_system_root
mnt_has_regular_mtab
mnt_mangle
mnt_match_fstype
diff --git a/libmount/src/libmount.h.in b/libmount/src/libmount.h.in
index 63ba3225f..1ce9995ec 100644
--- a/libmount/src/libmount.h.in
+++ b/libmount/src/libmount.h.in
@@ -326,6 +326,8 @@ extern const char *mnt_get_mtab_path(void);
extern int mnt_has_regular_mtab(const char **mtab, int *writable);
extern char *mnt_get_mountpoint(const char *path)
__ul_attribute__((warn_unused_result));
+extern int mnt_guess_system_root(dev_t devno, struct libmnt_cache *cache, char **path)
+ __ul_attribute__((nonnull(3)));
/* cache.c */
extern struct libmnt_cache *mnt_new_cache(void)
diff --git a/libmount/src/libmount.sym b/libmount/src/libmount.sym
index ad7bd4786..5145c876d 100644
--- a/libmount/src/libmount.sym
+++ b/libmount/src/libmount.sym
@@ -341,3 +341,7 @@ MOUNT_2.33 {
mnt_context_switch_origin_ns;
mnt_context_switch_target_ns;
} MOUNT_2.30;
+
+MOUNT_2.34 {
+ mnt_guess_system_root;
+} MOUNT_2.33;
diff --git a/libmount/src/mountP.h b/libmount/src/mountP.h
index 8f4fba7af..795ea69dc 100644
--- a/libmount/src/mountP.h
+++ b/libmount/src/mountP.h
@@ -120,7 +120,6 @@ extern int mnt_get_filesystems(char ***filesystems, const char *pattern);
extern void mnt_free_filesystems(char **filesystems);
extern char *mnt_get_kernel_cmdline_option(const char *name);
-extern int mnt_guess_system_root(dev_t devno, struct libmnt_cache *cache, char **path);
extern int mnt_stat_mountpoint(const char *target, struct stat *st);
/* tab.c */
diff --git a/libmount/src/utils.c b/libmount/src/utils.c
index 034d3436f..4f4d10bf9 100644
--- a/libmount/src/utils.c
+++ b/libmount/src/utils.c
@@ -1037,7 +1037,12 @@ char *mnt_get_kernel_cmdline_option(const char *name)
return res;
}
-/*
+/**
+ * mnt_guess_system_root:
+ * @devno: device number or zero
+ * @cache: paths cache or NULL
+ * @path: returns allocated path
+ *
* Converts @devno to the real device name if devno major number is greater
* than zero, otherwise use root= kernel cmdline option to get device name.
*