diff options
| author | Vishal Verma <vishal.l.verma@intel.com> | 2015-07-29 23:58:07 +0300 |
|---|---|---|
| committer | Dan Williams <dan.j.williams@intel.com> | 2015-08-14 20:43:04 +0300 |
| commit | fbde1414acc0440024083bf0c391b259bcfc4826 (patch) | |
| tree | a9130d2912234cc043d9d56167153bcfc98718b0 /drivers | |
| parent | f6ef5a2a50816b58e3126206de13d0b9fdf89df5 (diff) | |
| download | linux-fbde1414acc0440024083bf0c391b259bcfc4826.tar.xz | |
libnvdimm, btt: clean up internal interfaces
Consolidate the parameters passed to arena_is_valid into just nd_btt,
and an info block to increase re-usability.
Similarly, btt_arena_write_layout doesn't need to be passed a uuid, as
it can be obtained from arena->nd_btt.
Signed-off-by: Vishal Verma <vishal.l.verma@intel.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/nvdimm/btt.c | 19 |
1 files changed, 9 insertions, 10 deletions
diff --git a/drivers/nvdimm/btt.c b/drivers/nvdimm/btt.c index 552f1c4f4dc6..87e6a96a6c19 100644 --- a/drivers/nvdimm/btt.c +++ b/drivers/nvdimm/btt.c @@ -585,12 +585,11 @@ static void free_arenas(struct btt *btt) /* * This function checks if the metadata layout is valid and error free */ -static int arena_is_valid(struct arena_info *arena, struct btt_sb *super, - u8 *uuid, u32 lbasize) +static int arena_is_valid(struct nd_btt *nd_btt, struct btt_sb *super) { u64 checksum; - if (memcmp(super->uuid, uuid, 16)) + if (memcmp(super->uuid, nd_btt->uuid, 16)) return 0; checksum = le64_to_cpu(super->checksum); @@ -599,12 +598,12 @@ static int arena_is_valid(struct arena_info *arena, struct btt_sb *super, return 0; super->checksum = cpu_to_le64(checksum); - if (lbasize != le32_to_cpu(super->external_lbasize)) + if (nd_btt->lbasize != le32_to_cpu(super->external_lbasize)) return 0; /* TODO: figure out action for this */ if ((le32_to_cpu(super->flags) & IB_FLAG_ERROR_MASK) != 0) - dev_info(to_dev(arena), "Found arena with an error flag\n"); + dev_info(&nd_btt->dev, "Found arena with an error flag\n"); return 1; } @@ -666,8 +665,7 @@ static int discover_arenas(struct btt *btt) if (ret) goto out; - if (!arena_is_valid(arena, super, btt->nd_btt->uuid, - btt->lbasize)) { + if (!arena_is_valid(btt->nd_btt, super)) { if (remaining == btt->rawsize) { btt->init_state = INIT_NOTFOUND; dev_info(to_dev(arena), "No existing arenas\n"); @@ -756,10 +754,11 @@ static int create_arenas(struct btt *btt) * It is only called for an uninitialized arena when a write * to that arena occurs for the first time. */ -static int btt_arena_write_layout(struct arena_info *arena, u8 *uuid) +static int btt_arena_write_layout(struct arena_info *arena) { int ret; struct btt_sb *super; + struct nd_btt *nd_btt = arena->nd_btt; ret = btt_map_init(arena); if (ret) @@ -774,7 +773,7 @@ static int btt_arena_write_layout(struct arena_info *arena, u8 *uuid) return -ENOMEM; strncpy(super->signature, BTT_SIG, BTT_SIG_LEN); - memcpy(super->uuid, uuid, 16); + memcpy(super->uuid, nd_btt->uuid, 16); super->flags = cpu_to_le32(arena->flags); super->version_major = cpu_to_le16(arena->version_major); super->version_minor = cpu_to_le16(arena->version_minor); @@ -814,7 +813,7 @@ static int btt_meta_init(struct btt *btt) mutex_lock(&btt->init_lock); list_for_each_entry(arena, &btt->arena_list, list) { - ret = btt_arena_write_layout(arena, btt->nd_btt->uuid); + ret = btt_arena_write_layout(arena); if (ret) goto unlock; |