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| author | Lars Ellenberg <lars.ellenberg@linbit.com> | 2014-04-25 13:27:50 +0200 |
|---|---|---|
| committer | Philipp Reisner <philipp.reisner@linbit.com> | 2014-07-10 18:35:07 +0200 |
| commit | 41d9f7cd5ba8a488fbc96350141c70c5c01bf8e6 (patch) | |
| tree | 5f4014bf37ddbc20d981344d0f670e7b72686dfc /drivers/block/drbd | |
| parent | 15e26f6a3c6de2c665b4a30b9a70a902111f281f (diff) | |
| download | blackbird-op-linux-41d9f7cd5ba8a488fbc96350141c70c5c01bf8e6.tar.gz blackbird-op-linux-41d9f7cd5ba8a488fbc96350141c70c5c01bf8e6.zip | |
drbd: drop drbd_md_flush
The only user of drbd_md_flush was bm_rw(),
and it is always followed by either a drbd_md_sync(),
or an al_write_transaction(), which, if so configured,
both end up submiting a FLUSH|FUA request anyways.
Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
Diffstat (limited to 'drivers/block/drbd')
| -rw-r--r-- | drivers/block/drbd/drbd_bitmap.c | 4 | ||||
| -rw-r--r-- | drivers/block/drbd/drbd_int.h | 19 |
2 files changed, 1 insertions, 22 deletions
diff --git a/drivers/block/drbd/drbd_bitmap.c b/drivers/block/drbd/drbd_bitmap.c index dab6923493cb..29af96038e69 100644 --- a/drivers/block/drbd/drbd_bitmap.c +++ b/drivers/block/drbd/drbd_bitmap.c @@ -1155,9 +1155,7 @@ static int bm_rw(struct drbd_device *device, int rw, unsigned flags, unsigned la err = -EIO; /* Disk timeout/force-detach during IO... */ now = jiffies; - if (rw == WRITE) { - drbd_md_flush(device); - } else /* rw == READ */ { + if (rw == READ) { b->bm_set = bm_count_bits(b); drbd_info(device, "recounting of set bits took additional %lu jiffies\n", jiffies - now); diff --git a/drivers/block/drbd/drbd_int.h b/drivers/block/drbd/drbd_int.h index a71f8bb9dc80..d85f43c9ef56 100644 --- a/drivers/block/drbd/drbd_int.h +++ b/drivers/block/drbd/drbd_int.h @@ -2182,25 +2182,6 @@ static inline int drbd_queue_order_type(struct drbd_device *device) return QUEUE_ORDERED_NONE; } -static inline void drbd_md_flush(struct drbd_device *device) -{ - int r; - - if (device->ldev == NULL) { - drbd_warn(device, "device->ldev == NULL in drbd_md_flush\n"); - return; - } - - if (test_bit(MD_NO_FUA, &device->flags)) - return; - - r = blkdev_issue_flush(device->ldev->md_bdev, GFP_NOIO, NULL); - if (r) { - set_bit(MD_NO_FUA, &device->flags); - drbd_err(device, "meta data flush failed with status %d, disabling md-flushes\n", r); - } -} - static inline struct drbd_connection *first_connection(struct drbd_resource *resource) { return list_first_entry_or_null(&resource->connections, |
