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mirror of git://sourceware.org/git/lvm2.git synced 2024-11-04 22:22:07 +03:00

Several changes to udev support code:

- we have these levels when the udev rules are processed:
   10-dm.rules --> [11-dm-<subsystem>.rules] --> [12-dm-permissions.rules] -->
   13-dm-disk.rules --> [...all the other foreign rules...] --> 95-dm-notify.rules

 - each level can be disabled now by
   DM_UDEV_DISABLE_{DM, SUBSYSTEM, DISK, OTHER}_RULES_FLAG

 - add DM_UDEV_DISABLE_DM_RULES_FLAG to disable 10-dm.rules

 - add DM_UDEV_DISABLE_OTHER_RULES_FLAG to disable all the other (non-dm) rules.
   We cutoff these rules by using the 'last_rule', so this one should really be
   used with great care and in well-founded situations. We use this for lvm's
   hidden and layer devices now.

 - add a parameter for add_dev_node, rm_dev_node and rename_dev_node so it's
   possible to switch on/off udev checks

 - use DM_UDEV_DISABLE_DM_RULES_FLAG and DM_UDEV_DISABLE_SUBSYSTEM_RULES_FLAG
   if there's no cookie set and we have resume, remove and rename ioctl.
   This could happen when someone uses the libdevmapper that is compiled with
   udev_sync but the software does not make use of it. This way we can switch
   off the rules and fallback to libdevmapper node creation so there's no
   udev/libdevmapper race.
This commit is contained in:
Peter Rajnoha 2009-10-26 14:29:33 +00:00
parent 5a3bd51380
commit 421671b1c2
11 changed files with 142 additions and 60 deletions

View File

@ -1026,7 +1026,8 @@ static int _add_new_lv_to_dtree(struct dev_manager *dm, struct dm_tree *dtree,
if (layer || !lv_is_visible(lv))
udev_flags |= DM_UDEV_DISABLE_SUBSYSTEM_RULES_FLAG |
DM_UDEV_DISABLE_DISK_RULES_FLAG;
DM_UDEV_DISABLE_DISK_RULES_FLAG |
DM_UDEV_DISABLE_OTHER_RULES_FLAG;
if (lv_is_cow(lv))
udev_flags |= DM_UDEV_LOW_PRIORITY_FLAG;

View File

@ -731,24 +731,24 @@ static int _dm_task_run_v1(struct dm_task *dmt)
switch (dmt->type) {
case DM_DEVICE_CREATE:
add_dev_node(dmt->dev_name, MAJOR(dmi->dev), MINOR(dmi->dev),
dmt->uid, dmt->gid, dmt->mode);
dmt->uid, dmt->gid, dmt->mode, 0);
break;
case DM_DEVICE_REMOVE:
rm_dev_node(dmt->dev_name);
rm_dev_node(dmt->dev_name, 0);
break;
case DM_DEVICE_RENAME:
rename_dev_node(dmt->dev_name, dmt->newname);
rename_dev_node(dmt->dev_name, dmt->newname, 0);
break;
case DM_DEVICE_MKNODES:
if (dmi->flags & DM_EXISTS_FLAG)
add_dev_node(dmt->dev_name, MAJOR(dmi->dev),
MINOR(dmi->dev),
dmt->uid, dmt->gid, dmt->mode);
MINOR(dmi->dev), dmt->uid,
dmt->gid, dmt->mode, 0);
else
rm_dev_node(dmt->dev_name);
rm_dev_node(dmt->dev_name, 0);
break;
case DM_DEVICE_STATUS:
@ -1534,6 +1534,8 @@ static int _create_and_load_v4(struct dm_task *dmt)
task->uid = dmt->uid;
task->gid = dmt->gid;
task->mode = dmt->mode;
/* FIXME: Just for udev_check in dm_task_run. Can we avoid this? */
task->cookie_set = dmt->cookie_set;
r = dm_task_run(task);
dm_task_destroy(task);
@ -1690,6 +1692,36 @@ static struct dm_ioctl *_do_dm_ioctl(struct dm_task *dmt, unsigned command,
if (dmt->no_open_count)
dmi->flags |= DM_SKIP_BDGET_FLAG;
/*
* Prevent udev vs. libdevmapper race when processing nodes and
* symlinks. This can happen when the udev rules are installed and
* udev synchronisation code is enabled in libdevmapper but the
* software using libdevmapper does not make use of it (by not calling
* dm_task_set_cookie before). We need to instruct the udev rules not
* to be applied at all in this situation so we can gracefully fallback
* to libdevmapper's node and symlink creation code.
*/
if (dm_udev_get_sync_support() && !dmt->cookie_set &&
(dmt->type == DM_DEVICE_RESUME ||
dmt->type == DM_DEVICE_REMOVE ||
dmt->type == DM_DEVICE_RENAME)) {
log_debug("Cookie value is not set while trying to call "
"DM_DEVICE_RESUME, DM_DEVICE_REMOVE or DM_DEVICE_RENAME "
"ioctl. Please, consider using libdevmapper's udev "
"synchronisation interface or disable it explicitly "
"by calling dm_udev_set_sync_support(0).");
log_debug("Switching off device-mapper and all subsystem related "
"udev rules. Falling back to libdevmapper node creation.");
/*
* Disable general dm and subsystem rules but keep dm disk rules
* if not flagged out explicitly before. We need /dev/disk content
* for the software that expects it.
*/
dmi->event_nr |= (DM_UDEV_DISABLE_DM_RULES_FLAG |
DM_UDEV_DISABLE_SUBSYSTEM_RULES_FLAG) <<
DM_UDEV_FLAGS_SHIFT;
}
log_debug("dm %s %s %s%s%s %s%.0d%s%.0d%s"
"%s%c%c%s %.0" PRIu64 " %s [%u]",
_cmd_data_v4[dmt->type].name,
@ -1741,6 +1773,7 @@ int dm_task_run(struct dm_task *dmt)
{
struct dm_ioctl *dmi;
unsigned command;
int check_udev;
#ifdef DM_COMPAT
if (_dm_version == 1)
@ -1795,24 +1828,28 @@ repeat_ioctl:
}
}
check_udev = dmt->cookie_set &&
!(dmt->event_nr >> DM_UDEV_FLAGS_SHIFT &
DM_UDEV_DISABLE_DM_RULES_FLAG);
switch (dmt->type) {
case DM_DEVICE_CREATE:
if (dmt->dev_name && *dmt->dev_name)
add_dev_node(dmt->dev_name, MAJOR(dmi->dev),
MINOR(dmi->dev), dmt->uid, dmt->gid,
dmt->mode);
dmt->mode, check_udev);
break;
case DM_DEVICE_REMOVE:
/* FIXME Kernel needs to fill in dmi->name */
if (dmt->dev_name)
rm_dev_node(dmt->dev_name);
rm_dev_node(dmt->dev_name, check_udev);
break;
case DM_DEVICE_RENAME:
/* FIXME Kernel needs to fill in dmi->name */
if (dmt->dev_name)
rename_dev_node(dmt->dev_name, dmt->newname);
rename_dev_node(dmt->dev_name, dmt->newname,
check_udev);
break;
case DM_DEVICE_RESUME:
@ -1824,10 +1861,10 @@ repeat_ioctl:
case DM_DEVICE_MKNODES:
if (dmi->flags & DM_EXISTS_FLAG)
add_dev_node(dmi->name, MAJOR(dmi->dev),
MINOR(dmi->dev),
dmt->uid, dmt->gid, dmt->mode);
MINOR(dmi->dev), dmt->uid,
dmt->gid, dmt->mode, 0);
else if (dmt->dev_name)
rm_dev_node(dmt->dev_name);
rm_dev_node(dmt->dev_name, 0);
break;
case DM_DEVICE_STATUS:

View File

@ -1035,17 +1035,33 @@ void dm_report_field_set_value(struct dm_report_field *field, const void *value,
#define DM_COOKIE_MAGIC 0x0D4D
#define DM_UDEV_FLAGS_MASK 0xFFFF0000
#define DM_UDEV_FLAGS_SHIFT 16
/*
* DM_UDEV_DISABLE_DM_RULES_FLAG is set in case we need to disable
* basic device-mapper udev rules that create symlinks in /dev/<DM_DIR>
* directory. However, we can't reliably prevent creating default
* nodes by udev (commonly /dev/dm-X, where X is a number).
*/
#define DM_UDEV_DISABLE_DM_RULES_FLAG 0x0001
/*
* DM_UDEV_DISABLE_SUBSYTEM_RULES_FLAG is set in case we need to disable
* subsystem udev rules, but still we need the general DM udev rules to
* be applied (to create the nodes and symlinks under /dev and /dev/disk).
*/
#define DM_UDEV_DISABLE_SUBSYSTEM_RULES_FLAG 0x0001
#define DM_UDEV_DISABLE_SUBSYSTEM_RULES_FLAG 0x0002
/*
* DM_UDEV_DISABLE_DISK_RULES_FLAG is set in case we need to disable
* general DM rules that set symlinks in /dev/disk directory.
*/
#define DM_UDEV_DISABLE_DISK_RULES_FLAG 0x0002
#define DM_UDEV_DISABLE_DISK_RULES_FLAG 0x0004
/*
* DM_UDEV_DISABLE_OTHER_RULES_FLAG is set in case we need to disable
* all the other rules that are not general device-mapper nor subsystem
* related (the rules belong to other software or packages). Use this
* flag with care since it will cutoff the rule processing after the
* last device-mapper/subsytem rule is applied.
*/
#define DM_UDEV_DISABLE_OTHER_RULES_FLAG 0x0008
/*
* DM_UDEV_LOW_PRIORITY_FLAG is set in case we need to instruct the
* udev rules to give low priority to the device that is currently
@ -1054,7 +1070,7 @@ void dm_report_field_set_value(struct dm_report_field *field, const void *value,
* Common situation is a name based on FS UUID while using origin and
* snapshot devices.
*/
#define DM_UDEV_LOW_PRIORITY_FLAG 0x0004
#define DM_UDEV_LOW_PRIORITY_FLAG 0x0010
int dm_cookie_supported(void);

View File

@ -179,6 +179,7 @@ struct dm_task *dm_task_create(int type)
dmt->no_open_count = 0;
dmt->read_ahead = DM_READ_AHEAD_AUTO;
dmt->read_ahead_flags = 0;
dmt->event_nr = 0;
dmt->cookie_set = 0;
return dmt;
@ -401,7 +402,7 @@ int dm_set_selinux_context(const char *path, mode_t mode)
}
static int _add_dev_node(const char *dev_name, uint32_t major, uint32_t minor,
uid_t uid, gid_t gid, mode_t mode)
uid_t uid, gid_t gid, mode_t mode, int check_udev)
{
char path[PATH_MAX];
struct stat info;
@ -426,7 +427,7 @@ static int _add_dev_node(const char *dev_name, uint32_t major, uint32_t minor,
dev_name);
return 0;
}
} else if (dm_udev_get_sync_support())
} else if (dm_udev_get_sync_support() && check_udev)
log_warn("%s not set up by udev: Falling back to direct "
"node creation.", path);
@ -451,7 +452,7 @@ static int _add_dev_node(const char *dev_name, uint32_t major, uint32_t minor,
return 1;
}
static int _rm_dev_node(const char *dev_name)
static int _rm_dev_node(const char *dev_name, int check_udev)
{
char path[PATH_MAX];
struct stat info;
@ -460,7 +461,7 @@ static int _rm_dev_node(const char *dev_name)
if (stat(path, &info) < 0)
return 1;
else if (dm_udev_get_sync_support())
else if (dm_udev_get_sync_support() && check_udev)
log_warn("Node %s was not removed by udev. "
"Falling back to direct node removal.", path);
@ -474,7 +475,8 @@ static int _rm_dev_node(const char *dev_name)
return 1;
}
static int _rename_dev_node(const char *old_name, const char *new_name)
static int _rename_dev_node(const char *old_name, const char *new_name,
int check_udev)
{
char oldpath[PATH_MAX];
char newpath[PATH_MAX];
@ -489,7 +491,7 @@ static int _rename_dev_node(const char *old_name, const char *new_name)
"is already present", newpath);
return 0;
}
else if (dm_udev_get_sync_support()) {
else if (dm_udev_get_sync_support() && check_udev) {
if (stat(oldpath, &info) < 0 &&
errno == ENOENT)
/* assume udev already deleted this */
@ -499,7 +501,7 @@ static int _rename_dev_node(const char *old_name, const char *new_name)
"by udev but old node is still present. "
"Falling back to direct old node removal.",
oldpath, newpath);
return _rm_dev_node(old_name);
return _rm_dev_node(old_name, 0);
}
}
@ -513,7 +515,7 @@ static int _rename_dev_node(const char *old_name, const char *new_name)
return 0;
}
}
else if (dm_udev_get_sync_support())
else if (dm_udev_get_sync_support() && check_udev)
log_warn("The node %s should have been renamed to %s "
"by udev but new node is not present. "
"Falling back to direct node rename.",
@ -652,15 +654,16 @@ typedef enum {
static int _do_node_op(node_op_t type, const char *dev_name, uint32_t major,
uint32_t minor, uid_t uid, gid_t gid, mode_t mode,
const char *old_name, uint32_t read_ahead,
uint32_t read_ahead_flags)
uint32_t read_ahead_flags, int check_udev)
{
switch (type) {
case NODE_ADD:
return _add_dev_node(dev_name, major, minor, uid, gid, mode);
return _add_dev_node(dev_name, major, minor, uid, gid,
mode, check_udev);
case NODE_DEL:
return _rm_dev_node(dev_name);
return _rm_dev_node(dev_name, check_udev);
case NODE_RENAME:
return _rename_dev_node(old_name, dev_name);
return _rename_dev_node(old_name, dev_name, check_udev);
case NODE_READ_AHEAD:
return _set_dev_node_read_ahead(dev_name, read_ahead,
read_ahead_flags);
@ -683,6 +686,7 @@ struct node_op_parms {
uint32_t read_ahead;
uint32_t read_ahead_flags;
char *old_name;
int check_udev;
char names[0];
};
@ -696,7 +700,7 @@ static void _store_str(char **pos, char **ptr, const char *str)
static int _stack_node_op(node_op_t type, const char *dev_name, uint32_t major,
uint32_t minor, uid_t uid, gid_t gid, mode_t mode,
const char *old_name, uint32_t read_ahead,
uint32_t read_ahead_flags)
uint32_t read_ahead_flags, int check_udev)
{
struct node_op_parms *nop;
struct dm_list *noph, *nopht;
@ -730,6 +734,7 @@ static int _stack_node_op(node_op_t type, const char *dev_name, uint32_t major,
nop->mode = mode;
nop->read_ahead = read_ahead;
nop->read_ahead_flags = read_ahead_flags;
nop->check_udev = check_udev;
_store_str(&pos, &nop->dev_name, dev_name);
_store_str(&pos, &nop->old_name, old_name);
@ -748,35 +753,37 @@ static void _pop_node_ops(void)
nop = dm_list_item(noph, struct node_op_parms);
_do_node_op(nop->type, nop->dev_name, nop->major, nop->minor,
nop->uid, nop->gid, nop->mode, nop->old_name,
nop->read_ahead, nop->read_ahead_flags);
nop->read_ahead, nop->read_ahead_flags,
nop->check_udev);
dm_list_del(&nop->list);
dm_free(nop);
}
}
int add_dev_node(const char *dev_name, uint32_t major, uint32_t minor,
uid_t uid, gid_t gid, mode_t mode)
uid_t uid, gid_t gid, mode_t mode, int check_udev)
{
log_debug("%s: Stacking NODE_ADD (%" PRIu32 ",%" PRIu32 ") %u:%u 0%o",
dev_name, major, minor, uid, gid, mode);
return _stack_node_op(NODE_ADD, dev_name, major, minor, uid, gid, mode,
"", 0, 0);
return _stack_node_op(NODE_ADD, dev_name, major, minor, uid,
gid, mode, "", 0, 0, check_udev);
}
int rename_dev_node(const char *old_name, const char *new_name)
int rename_dev_node(const char *old_name, const char *new_name, int check_udev)
{
log_debug("%s: Stacking NODE_RENAME to %s", old_name, new_name);
return _stack_node_op(NODE_RENAME, new_name, 0, 0, 0, 0, 0, old_name,
0, 0);
return _stack_node_op(NODE_RENAME, new_name, 0, 0, 0,
0, 0, old_name, 0, 0, check_udev);
}
int rm_dev_node(const char *dev_name)
int rm_dev_node(const char *dev_name, int check_udev)
{
log_debug("%s: Stacking NODE_DEL (replaces other stacked ops)", dev_name);
return _stack_node_op(NODE_DEL, dev_name, 0, 0, 0, 0, 0, "", 0, 0);
return _stack_node_op(NODE_DEL, dev_name, 0, 0, 0,
0, 0, "", 0, 0, check_udev);
}
int set_dev_node_read_ahead(const char *dev_name, uint32_t read_ahead,
@ -788,8 +795,8 @@ int set_dev_node_read_ahead(const char *dev_name, uint32_t read_ahead,
log_debug("%s: Stacking NODE_READ_AHEAD %" PRIu32 " (flags=%" PRIu32
")", dev_name, read_ahead, read_ahead_flags);
return _stack_node_op(NODE_READ_AHEAD, dev_name, 0, 0, 0, 0, 0, "",
read_ahead, read_ahead_flags);
return _stack_node_op(NODE_READ_AHEAD, dev_name, 0, 0, 0, 0,
0, "", read_ahead, read_ahead_flags, 0);
}
void update_devs(void)

View File

@ -23,9 +23,10 @@ struct target *create_target(uint64_t start,
const char *type, const char *params);
int add_dev_node(const char *dev_name, uint32_t minor, uint32_t major,
uid_t uid, gid_t gid, mode_t mode);
int rm_dev_node(const char *dev_name);
int rename_dev_node(const char *old_name, const char *new_name);
uid_t uid, gid_t gid, mode_t mode, int check_udev);
int rm_dev_node(const char *dev_name, int check_udev);
int rename_dev_node(const char *old_name, const char *new_name,
int check_udev);
int get_dev_node_read_ahead(const char *dev_name, uint32_t *read_ahead);
int set_dev_node_read_ahead(const char *dev_name, uint32_t read_ahead,
uint32_t read_ahead_flags);

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@ -873,7 +873,7 @@ static int _deactivate_node(const char *name, uint32_t major, uint32_t minor,
r = dm_task_run(dmt);
/* FIXME Until kernel returns actual name so dm-ioctl.c can handle it */
rm_dev_node(name);
rm_dev_node(name, dmt->cookie_set);
/* FIXME Remove node from tree or mark invalid? */

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@ -779,10 +779,12 @@ static int _udevflags(int args, char **argv, void *data __attribute((unused)))
uint32_t cookie;
uint16_t flags;
int i;
static const char *dm_flag_names[] = {"DISABLE_SUBSYSTEM_RULES",
static const char *dm_flag_names[] = {"DISABLE_DM_RULES",
"DISABLE_SUBSYSTEM_RULES",
"DISABLE_DISK_RULES",
"DISABLE_OTHER_RULES",
"LOW_PRIORITY",
0, 0, 0, 0, 0};
0, 0, 0};
if (!(cookie = _get_cookie_value(argv[1])))
return 0;

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@ -21,8 +21,16 @@ TEST!="$env{DM_SBIN_PATH}/dmsetup", ENV{DM_SBIN_PATH}="/usr/sbin"
TEST!="$env{DM_SBIN_PATH}/dmsetup", GOTO="dm_end"
# Decode udev control flags and set environment variables appropriately.
# These flags are encoded in DM_COOKIE variable that was introduced in
# kernel version 2.6.31. Therefore, we can use this feature with
# kernels >= 2.6.31 only.
ENV{DM_COOKIE}=="?*", IMPORT{program}="$env{DM_SBIN_PATH}/dmsetup udevflags $env{DM_COOKIE}"
# Normally, we would test for DM_UDEV_DISABLE_DM_RULES_FLAG here and skip
# the rules if set. However, we need to set DM_* environment variables
# for now to properly filter out inappropriate events. This dependency
# might be removed in the future.
ACTION!="add|change", GOTO="dm_end"
# Normally, we operate on "change" events only. But when
@ -58,18 +66,19 @@ ENV{DM_SUSPENDED}=="Suspended", ENV{DM_SUSPENDED}="1"
# possible future changes.
ENV{DM_UDEV_RULES_VSN}="1"
ENV{DM_NAME}=="?*", SYMLINK+="(DM_DIR)/$env{DM_NAME}"
ENV{DM_UDEV_DISABLE_DM_RULES_FLAG}!="1", ENV{DM_NAME}=="?*", SYMLINK+="(DM_DIR)/$env{DM_NAME}"
# We have to ignore further rule application for inappropriate events
# and devices. But still send the notification if cookie exists.
ENV{DM_UUID}=="mpath-?*", ENV{DM_ACTION}=="PATH_FAILED", GOTO="dm_last_rule"
ENV{DM_UUID}=="CRYPT-TEMP-?*", GOTO="dm_last_rule"
ENV{DM_UUID}!="?*", ENV{DM_NAME}=="temporary-cryptsetup-?*", GOTO="dm_last_rule"
ENV{DM_UUID}=="mpath-?*", ENV{DM_ACTION}=="PATH_FAILED", GOTO="dm_disable"
ENV{DM_UUID}=="CRYPT-TEMP-?*", GOTO="dm_disable"
ENV{DM_UUID}!="?*", ENV{DM_NAME}=="temporary-cryptsetup-?*", GOTO="dm_disable"
GOTO="dm_end"
LABEL="dm_last_rule"
ENV{DM_COOKIE}=="?*", RUN+="$env{DM_SBIN_PATH}/dmsetup udevcomplete $env{DM_COOKIE}"
OPTIONS+="last_rule"
LABEL="dm_disable"
ENV{DM_UDEV_DISABLE_SUBSYSTEM_RULES_FLAG}="1"
ENV{DM_UDEV_DISABLE_DISK_RULES_FLAG}="1"
ENV{DM_UDEV_DISABLE_OTHER_RULES_FLAG}="1"
LABEL="dm_end"

View File

@ -17,7 +17,7 @@ ENV{DM_UDEV_DISABLE_SUBSYSTEM_RULES_FLAG}=="1", GOTO="lvm_end"
# Use DM name and split it up into its VG/LV/layer constituents.
IMPORT{program}="$env{DM_SBIN_PATH}/dmsetup splitname --nameprefixes --noheadings --rows $env{DM_NAME}"
# Do not create symlinks for hidden subdevices.
# Do not create symlinks for inappropriate subdevices.
ENV{DM_LV_NAME}=="?*_mimage_[0-9]*|pvmove?*|?*_vorigin", GOTO="lvm_end"
# Create symlinks for top-level devices only.

View File

@ -7,17 +7,26 @@
# "add" event is processed on coldplug only!
ACTION!="add|change", GOTO="dm_end"
ENV{DM_UDEV_RULES_VSN}!="?*", GOTO="dm_end"
ENV{DM_UDEV_DISABLE_DISK_RULES_FLAG}=="1", GOTO="dm_end"
ENV{DM_UDEV_RULES_VSN}!="?*", GOTO="dm_other"
ENV{DM_UDEV_DISABLE_DISK_RULES_FLAG}=="1", GOTO="dm_other"
SYMLINK+="disk/by-id/dm-name-$env{DM_NAME}"
ENV{DM_UUID}=="?*", SYMLINK+="disk/by-id/dm-uuid-$env{DM_UUID}"
ENV{DM_SUSPENDED}=="1", GOTO="dm_end"
ENV{DM_SUSPENDED}=="1", GOTO="dm_other"
IMPORT{program}="$env{DM_SBIN_PATH}/blkid -o udev -p $tempnode"
ENV{DM_UDEV_LOW_PRIORITY_FLAG}=="1", OPTIONS="link_priority=-100"
ENV{ID_FS_USAGE}=="filesystem|other|crypto", ENV{ID_FS_UUID_ENC}=="?*", SYMLINK+="disk/by-uuid/$env{ID_FS_UUID_ENC}"
ENV{ID_FS_USAGE}=="filesystem|other", ENV{ID_FS_LABEL_ENC}=="?*", SYMLINK+="disk/by-label/$env{ID_FS_LABEL_ENC}"
# Cutoff all subsequent rules if instructed by a flag.
# This flag should be used in well-founded situations only to prevent
# any problems that could arise when processing this event further by
# foreign rules (various temporary and hidden devices mostly).
LABEL="dm_other"
ENV{DM_UDEV_DISABLE_OTHER_RULES_FLAG}!="1", GOTO="dm_end"
ENV{DM_COOKIE}=="?*", RUN+="$env{DM_SBIN_PATH}/dmsetup udevcomplete $env{DM_COOKIE}"
OPTIONS+="last_rule"
LABEL="dm_end"

View File

@ -16,8 +16,8 @@ top_srcdir = @top_srcdir@
top_builddir = @top_builddir@
VPATH = @srcdir@
DM_RULES=10-dm.rules 12-dm-disk.rules 95-dm-notify.rules
LVM_RULES=11-lvm.rules
DM_RULES=10-dm.rules 13-dm-disk.rules 95-dm-notify.rules
LVM_RULES=11-dm-lvm.rules
DM_DIR=$(shell grep "\#define DM_DIR" $(top_srcdir)/libdm/misc/dm-ioctl.h | awk '{print $$3}')
CLEAN_TARGETS=10-dm.rules