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Subject[PATCH 01/15] block: don't overwrite bdi->state after bdi_init() has been run
Date
Move the defaults to where we do the init of the backing_dev_info.

Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
---
block/blk-core.c | 5 +++++
block/blk-settings.c | 4 ----
2 files changed, 5 insertions(+), 4 deletions(-)

diff --git a/block/blk-core.c b/block/blk-core.c
index f6452f6..94d88fa 100644
--- a/block/blk-core.c
+++ b/block/blk-core.c
@@ -498,6 +498,11 @@ struct request_queue *blk_alloc_queue_node(gfp_t gfp_mask, int node_id)

q->backing_dev_info.unplug_io_fn = blk_backing_dev_unplug;
q->backing_dev_info.unplug_io_data = q;
+ q->backing_dev_info.ra_pages =
+ (VM_MAX_READAHEAD * 1024) / PAGE_CACHE_SIZE;
+ q->backing_dev_info.state = 0;
+ q->backing_dev_info.capabilities = BDI_CAP_MAP_COPY;
+
err = bdi_init(&q->backing_dev_info);
if (err) {
kmem_cache_free(blk_requestq_cachep, q);
diff --git a/block/blk-settings.c b/block/blk-settings.c
index d71cedc..138610b 100644
--- a/block/blk-settings.c
+++ b/block/blk-settings.c
@@ -129,10 +129,6 @@ void blk_queue_make_request(struct request_queue *q, make_request_fn *mfn)
blk_queue_max_segment_size(q, MAX_SEGMENT_SIZE);

q->make_request_fn = mfn;
- q->backing_dev_info.ra_pages =
- (VM_MAX_READAHEAD * 1024) / PAGE_CACHE_SIZE;
- q->backing_dev_info.state = 0;
- q->backing_dev_info.capabilities = BDI_CAP_MAP_COPY;
blk_queue_max_sectors(q, SAFE_MAX_SECTORS);
blk_queue_logical_block_size(q, 512);
blk_queue_dma_alignment(q, 511);
--
1.6.3.rc0.1.gf800


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