From: Andreas Gruenbacher Date: Wed, 13 Aug 2014 16:33:55 +0000 (+0200) Subject: drbd: Move enum write_ordering_e to drbd.h X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=f6ba86363908e3f4e3ef11f768be7ca2745b18cf;p=GitHub%2Fmoto-9609%2Fandroid_kernel_motorola_exynos9610.git drbd: Move enum write_ordering_e to drbd.h Also change the enum values to all-capital letters. Signed-off-by: Philipp Reisner Signed-off-by: Lars Ellenberg Signed-off-by: Jens Axboe --- diff --git a/drivers/block/drbd/drbd_int.h b/drivers/block/drbd/drbd_int.h index e66d453a5f2b..47d4b02103b8 100644 --- a/drivers/block/drbd/drbd_int.h +++ b/drivers/block/drbd/drbd_int.h @@ -632,12 +632,6 @@ struct bm_io_work { void (*done)(struct drbd_device *device, int rv); }; -enum write_ordering_e { - WO_none, - WO_drain_io, - WO_bdev_flush, -}; - struct fifo_buffer { unsigned int head_index; unsigned int size; diff --git a/drivers/block/drbd/drbd_main.c b/drivers/block/drbd/drbd_main.c index 74d97f4bac34..3ee4a44cb225 100644 --- a/drivers/block/drbd/drbd_main.c +++ b/drivers/block/drbd/drbd_main.c @@ -2590,7 +2590,7 @@ struct drbd_resource *drbd_create_resource(const char *name) kref_init(&resource->kref); idr_init(&resource->devices); INIT_LIST_HEAD(&resource->connections); - resource->write_ordering = WO_bdev_flush; + resource->write_ordering = WO_BDEV_FLUSH; list_add_tail_rcu(&resource->resources, &drbd_resources); mutex_init(&resource->conf_update); mutex_init(&resource->adm_mutex); diff --git a/drivers/block/drbd/drbd_nl.c b/drivers/block/drbd/drbd_nl.c index a1a01ccb7399..dfc1799d0f83 100644 --- a/drivers/block/drbd/drbd_nl.c +++ b/drivers/block/drbd/drbd_nl.c @@ -1418,7 +1418,7 @@ int drbd_adm_disk_opts(struct sk_buff *skb, struct genl_info *info) set_bit(MD_NO_FUA, &device->flags); if (write_ordering_changed(old_disk_conf, new_disk_conf)) - drbd_bump_write_ordering(device->resource, NULL, WO_bdev_flush); + drbd_bump_write_ordering(device->resource, NULL, WO_BDEV_FLUSH); drbd_md_sync(device); @@ -1727,7 +1727,7 @@ int drbd_adm_attach(struct sk_buff *skb, struct genl_info *info) new_disk_conf = NULL; new_plan = NULL; - drbd_bump_write_ordering(device->resource, device->ldev, WO_bdev_flush); + drbd_bump_write_ordering(device->resource, device->ldev, WO_BDEV_FLUSH); if (drbd_md_test_flag(device->ldev, MDF_CRASHED_PRIMARY)) set_bit(CRASHED_PRIMARY, &device->flags); diff --git a/drivers/block/drbd/drbd_proc.c b/drivers/block/drbd/drbd_proc.c index 3b10fa6cb039..6537b25db9c1 100644 --- a/drivers/block/drbd/drbd_proc.c +++ b/drivers/block/drbd/drbd_proc.c @@ -245,9 +245,9 @@ static int drbd_seq_show(struct seq_file *seq, void *v) char wp; static char write_ordering_chars[] = { - [WO_none] = 'n', - [WO_drain_io] = 'd', - [WO_bdev_flush] = 'f', + [WO_NONE] = 'n', + [WO_DRAIN_IO] = 'd', + [WO_BDEV_FLUSH] = 'f', }; seq_printf(seq, "version: " REL_VERSION " (api:%d/proto:%d-%d)\n%s\n", diff --git a/drivers/block/drbd/drbd_receiver.c b/drivers/block/drbd/drbd_receiver.c index 5bb71e50843a..bf38b957d9dd 100644 --- a/drivers/block/drbd/drbd_receiver.c +++ b/drivers/block/drbd/drbd_receiver.c @@ -1178,7 +1178,7 @@ static void drbd_flush(struct drbd_connection *connection) struct drbd_peer_device *peer_device; int vnr; - if (connection->resource->write_ordering >= WO_bdev_flush) { + if (connection->resource->write_ordering >= WO_BDEV_FLUSH) { rcu_read_lock(); idr_for_each_entry(&connection->peer_devices, peer_device, vnr) { struct drbd_device *device = peer_device->device; @@ -1203,7 +1203,7 @@ static void drbd_flush(struct drbd_connection *connection) /* would rather check on EOPNOTSUPP, but that is not reliable. * don't try again for ANY return value != 0 * if (rv == -EOPNOTSUPP) */ - drbd_bump_write_ordering(connection->resource, NULL, WO_drain_io); + drbd_bump_write_ordering(connection->resource, NULL, WO_DRAIN_IO); } put_ldev(device); kref_put(&device->kref, drbd_destroy_device); @@ -1299,10 +1299,10 @@ max_allowed_wo(struct drbd_backing_dev *bdev, enum write_ordering_e wo) dc = rcu_dereference(bdev->disk_conf); - if (wo == WO_bdev_flush && !dc->disk_flushes) - wo = WO_drain_io; - if (wo == WO_drain_io && !dc->disk_drain) - wo = WO_none; + if (wo == WO_BDEV_FLUSH && !dc->disk_flushes) + wo = WO_DRAIN_IO; + if (wo == WO_DRAIN_IO && !dc->disk_drain) + wo = WO_NONE; return wo; } @@ -1319,13 +1319,13 @@ void drbd_bump_write_ordering(struct drbd_resource *resource, struct drbd_backin enum write_ordering_e pwo; int vnr; static char *write_ordering_str[] = { - [WO_none] = "none", - [WO_drain_io] = "drain", - [WO_bdev_flush] = "flush", + [WO_NONE] = "none", + [WO_DRAIN_IO] = "drain", + [WO_BDEV_FLUSH] = "flush", }; pwo = resource->write_ordering; - if (wo != WO_bdev_flush) + if (wo != WO_BDEV_FLUSH) wo = min(pwo, wo); rcu_read_lock(); idr_for_each_entry(&resource->devices, device, vnr) { @@ -1343,7 +1343,7 @@ void drbd_bump_write_ordering(struct drbd_resource *resource, struct drbd_backin rcu_read_unlock(); resource->write_ordering = wo; - if (pwo != resource->write_ordering || wo == WO_bdev_flush) + if (pwo != resource->write_ordering || wo == WO_BDEV_FLUSH) drbd_info(resource, "Method to ensure write ordering: %s\n", write_ordering_str[resource->write_ordering]); } @@ -1533,7 +1533,7 @@ static int receive_Barrier(struct drbd_connection *connection, struct packet_inf * Therefore we must send the barrier_ack after the barrier request was * completed. */ switch (connection->resource->write_ordering) { - case WO_none: + case WO_NONE: if (rv == FE_RECYCLED) return 0; @@ -1546,8 +1546,8 @@ static int receive_Barrier(struct drbd_connection *connection, struct packet_inf drbd_warn(connection, "Allocation of an epoch failed, slowing down\n"); /* Fall through */ - case WO_bdev_flush: - case WO_drain_io: + case WO_BDEV_FLUSH: + case WO_DRAIN_IO: conn_wait_active_ee_empty(connection); drbd_flush(connection); diff --git a/include/linux/drbd.h b/include/linux/drbd.h index 8723f2a99e15..15a14724a087 100644 --- a/include/linux/drbd.h +++ b/include/linux/drbd.h @@ -357,6 +357,13 @@ enum drbd_timeout_flag { #define UUID_JUST_CREATED ((__u64)4) +enum write_ordering_e { + WO_NONE, + WO_DRAIN_IO, + WO_BDEV_FLUSH, + WO_BIO_BARRIER +}; + /* magic numbers used in meta data and network packets */ #define DRBD_MAGIC 0x83740267 #define DRBD_MAGIC_BIG 0x835a