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daemon: set-label: Convert to table-driven dispatch

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Signed-off-by: Susant Sahani <ssahani@redhat.com>
This commit is contained in:
Susant Sahani
2025-11-22 19:03:42 +05:30
committed by rwmjones
parent 276897c4df
commit 301b9bc481
1 changed files with 24 additions and 24 deletions
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50
daemon/labels.c
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@@ -59,36 +59,36 @@ xfslabel (const char *device, const char *label)
int
do_set_label (const mountable_t *mountable, const char *label)
{
int r;
/* How we set the label depends on the filesystem type. */
CLEANUP_FREE char *vfs_type = do_vfs_type (mountable);
if (vfs_type == NULL)
return -1;
if (STREQ (vfs_type, "btrfs"))
r = btrfs_set_label (mountable->device, label);
struct {
const char *fs;
int (*func)(const char *device, const char *label);
} const setters[] = {
{ "btrfs", btrfs_set_label },
{ "msdos", dosfslabel },
{ "vfat", dosfslabel },
{ "fat", dosfslabel },
{ "ntfs", ntfs_set_label },
{ "xfs", xfslabel },
{ "swap", swap_set_label },
{ NULL, NULL }
};
else if (STREQ (vfs_type, "msdos") ||
STREQ (vfs_type, "fat") ||
STREQ (vfs_type, "vfat"))
r = dosfslabel (mountable->device, label);
/* Special case: ext2/ext3/ext4 */
if (fstype_is_extfs (vfs_type))
return do_set_e2label (mountable->device, label);
else if (fstype_is_extfs (vfs_type))
r = do_set_e2label (mountable->device, label);
else if (STREQ (vfs_type, "ntfs"))
r = ntfs_set_label (mountable->device, label);
else if (STREQ (vfs_type, "xfs"))
r = xfslabel (mountable->device, label);
else if (STREQ (vfs_type, "swap"))
r = swap_set_label (mountable->device, label);
else
NOT_SUPPORTED (-1, "don't know how to set the label for '%s' filesystems",
vfs_type);
return r;
for (size_t i = 0; setters[i].fs; ++i) {
if (STREQ (vfs_type, setters[i].fs))
return setters[i].func (mountable->device, label);
}
/* Not supported */
NOT_SUPPORTED (-1,
"don't know how to set the label for '%s' filesystems",
vfs_type);
}