summaryrefslogtreecommitdiffstats
path: root/fs/dax.c
diff options
context:
space:
mode:
Diffstat (limited to 'fs/dax.c')
-rw-r--r--fs/dax.c32
1 files changed, 0 insertions, 32 deletions
diff --git a/fs/dax.c b/fs/dax.c
index d602410..0abbbb6 100644
--- a/fs/dax.c
+++ b/fs/dax.c
@@ -87,38 +87,6 @@ struct page *read_dax_sector(struct block_device *bdev, sector_t n)
return page;
}
-/*
- * dax_clear_sectors() is called from within transaction context from XFS,
- * and hence this means the stack from this point must follow GFP_NOFS
- * semantics for all operations.
- */
-int dax_clear_sectors(struct block_device *bdev, sector_t _sector, long _size)
-{
- struct blk_dax_ctl dax = {
- .sector = _sector,
- .size = _size,
- };
-
- might_sleep();
- do {
- long count, sz;
-
- count = dax_map_atomic(bdev, &dax);
- if (count < 0)
- return count;
- sz = min_t(long, count, SZ_128K);
- clear_pmem(dax.addr, sz);
- dax.size -= sz;
- dax.sector += sz / 512;
- dax_unmap_atomic(bdev, &dax);
- cond_resched();
- } while (dax.size);
-
- wmb_pmem();
- return 0;
-}
-EXPORT_SYMBOL_GPL(dax_clear_sectors);
-
static bool buffer_written(struct buffer_head *bh)
{
return buffer_mapped(bh) && !buffer_unwritten(bh);
OpenPOWER on IntegriCloud