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block: rbd: convert to use BUS_ATTR_WO and RO 

We are trying to get rid of BUS_ATTR() and the usage of that in rbd.c
can be trivially converted to use BUS_ATTR_WO and RO, so use those
macros instead.

Cc: Sage Weil <sage@redhat.com>
Cc: Alex Elder <elder@kernel.org>
Cc: Jens Axboe <axboe@kernel.dk>
Acked-by: Ilya Dryomov <idryomov@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Greg Kroah-Hartman 2018-12-21 08:54:38 +01:00
Родитель c9fbe769d0
Коммит 7e9586bab2
1 изменённых файлов: 19 добавлений и 26 удалений
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45
drivers/block/rbd.c
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@ -428,14 +428,13 @@ static bool single_major = true;
module_param(single_major, bool, 0444); module_param(single_major, bool, 0444);
MODULE_PARM_DESC(single_major, "Use a single major number for all rbd devices (default: true)"); MODULE_PARM_DESC(single_major, "Use a single major number for all rbd devices (default: true)");
static ssize_t rbd_add(struct bus_type *bus, const char *buf, static ssize_t add_store(struct bus_type *bus, const char *buf, size_t count);
size_t count); static ssize_t remove_store(struct bus_type *bus, const char *buf,
static ssize_t rbd_remove(struct bus_type *bus, const char *buf, size_t count);
size_t count); static ssize_t add_single_major_store(struct bus_type *bus, const char *buf,
static ssize_t rbd_add_single_major(struct bus_type *bus, const char *buf, size_t count);
size_t count); static ssize_t remove_single_major_store(struct bus_type *bus, const char *buf,
static ssize_t rbd_remove_single_major(struct bus_type *bus, const char *buf, size_t count);
size_t count);
static int rbd_dev_image_probe(struct rbd_device *rbd_dev, int depth); static int rbd_dev_image_probe(struct rbd_device *rbd_dev, int depth);
static int rbd_dev_id_to_minor(int dev_id) static int rbd_dev_id_to_minor(int dev_id)
@ -464,16 +463,16 @@ static bool rbd_is_lock_owner(struct rbd_device *rbd_dev)
return is_lock_owner; return is_lock_owner;
} }
static ssize_t rbd_supported_features_show(struct bus_type *bus, char *buf) static ssize_t supported_features_show(struct bus_type *bus, char *buf)
{ {
return sprintf(buf, "0x%llx\n", RBD_FEATURES_SUPPORTED); return sprintf(buf, "0x%llx\n", RBD_FEATURES_SUPPORTED);
} }
static BUS_ATTR(add, 0200, NULL, rbd_add); static BUS_ATTR_WO(add);
static BUS_ATTR(remove, 0200, NULL, rbd_remove); static BUS_ATTR_WO(remove);
static BUS_ATTR(add_single_major, 0200, NULL, rbd_add_single_major); static BUS_ATTR_WO(add_single_major);
static BUS_ATTR(remove_single_major, 0200, NULL, rbd_remove_single_major); static BUS_ATTR_WO(remove_single_major);
static BUS_ATTR(supported_features, 0444, rbd_supported_features_show, NULL); static BUS_ATTR_RO(supported_features);
static struct attribute *rbd_bus_attrs[] = { static struct attribute *rbd_bus_attrs[] = {
&bus_attr_add.attr, &bus_attr_add.attr,
@ -5934,9 +5933,7 @@ err_out_args:
goto out; goto out;
} }
static ssize_t rbd_add(struct bus_type *bus, static ssize_t add_store(struct bus_type *bus, const char *buf, size_t count)
const char *buf,
size_t count)
{ {
if (single_major) if (single_major)
return -EINVAL; return -EINVAL;
@ -5944,9 +5941,8 @@ static ssize_t rbd_add(struct bus_type *bus,
return do_rbd_add(bus, buf, count); return do_rbd_add(bus, buf, count);
} }
static ssize_t rbd_add_single_major(struct bus_type *bus, static ssize_t add_single_major_store(struct bus_type *bus, const char *buf,
const char *buf, size_t count)
size_t count)
{ {
return do_rbd_add(bus, buf, count); return do_rbd_add(bus, buf, count);
} }
@ -6049,9 +6045,7 @@ static ssize_t do_rbd_remove(struct bus_type *bus,
return count; return count;
} }
static ssize_t rbd_remove(struct bus_type *bus, static ssize_t remove_store(struct bus_type *bus, const char *buf, size_t count)
const char *buf,
size_t count)
{ {
if (single_major) if (single_major)
return -EINVAL; return -EINVAL;
@ -6059,9 +6053,8 @@ static ssize_t rbd_remove(struct bus_type *bus,
return do_rbd_remove(bus, buf, count); return do_rbd_remove(bus, buf, count);
} }
static ssize_t rbd_remove_single_major(struct bus_type *bus, static ssize_t remove_single_major_store(struct bus_type *bus, const char *buf,
const char *buf, size_t count)
size_t count)
{ {
return do_rbd_remove(bus, buf, count); return do_rbd_remove(bus, buf, count);
} }