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75fce37)
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8c971178a788c70e8d6db5c3a813de1a1f54e5b7 upstream.
Introduce THIN_MAX_CONCURRENT_LOCKS into dm-thin-metadata to
give a name to an otherwise "magic" number.
Signed-off-by: Joe Thornber <ejt@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Signed-off-by: Alasdair G Kergon <agk@redhat.com>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
#define THIN_METADATA_CACHE_SIZE 64
#define SECTOR_TO_BLOCK_SHIFT 3
#define THIN_METADATA_CACHE_SIZE 64
#define SECTOR_TO_BLOCK_SHIFT 3
+/*
+ * 3 for btree insert +
+ * 2 for btree lookup used within space map
+ */
+#define THIN_MAX_CONCURRENT_LOCKS 5
+
/* This should be plenty */
#define SPACE_MAP_ROOT_SIZE 128
/* This should be plenty */
#define SPACE_MAP_ROOT_SIZE 128
return ERR_PTR(-ENOMEM);
}
return ERR_PTR(-ENOMEM);
}
- /*
- * Max hex locks:
- * 3 for btree insert +
- * 2 for btree lookup used within space map
- */
bm = dm_block_manager_create(bdev, THIN_METADATA_BLOCK_SIZE,
bm = dm_block_manager_create(bdev, THIN_METADATA_BLOCK_SIZE,
- THIN_METADATA_CACHE_SIZE, 5);
+ THIN_METADATA_CACHE_SIZE,
+ THIN_MAX_CONCURRENT_LOCKS);
if (!bm) {
DMERR("could not create block manager");
kfree(pmd);
if (!bm) {
DMERR("could not create block manager");
kfree(pmd);