[PATCH 18/43] hpsa: refactor freeing of resources into more logical functions

Don Brace
2015-02-21T22:20:28Z

From: Robert Elliott <elliott@hp.com>

refactor freeing of resources into more logical functions

Reviewed-by: Scott Teel <scott.teel@pmcs.com>
Reviewed-by: Kevin Barnett <kevin.barnett@pmcs.com>
Signed-off-by: Robert Elliott <elliott@hp.com>
Signed-off-by: Don Brace <don.brace@pmcs.com>
---
drivers/scsi/hpsa.c | 104 +++++++++++++++++++++++++++------------------------
1 file changed, 56 insertions(+), 48 deletions(-)

diff --git a/drivers/scsi/hpsa.c b/drivers/scsi/hpsa.c
index 21e3610..e61e4eb 100644
--- a/drivers/scsi/hpsa.c
+++ b/drivers/scsi/hpsa.c
@@ -234,6 +234,8 @@ static void check_ioctl_unit_attention(struct ctlr_info *h,
static void calc_bucket_map(int *bucket, int num_buckets,
int nsgs, int min_blocks, u32 *bucket_map);
static void hpsa_put_ctlr_into_performant_mode(struct ctlr_info *h);
+static void hpsa_free_ioaccel1_cmd_and_bft(struct ctlr_info *h);
+static void hpsa_free_ioaccel2_cmd_and_bft(struct ctlr_info *h);
static inline u32 next_command(struct ctlr_info *h, u8 q);
static int hpsa_find_cfg_addrs(struct pci_dev *pdev, void __iomem *vaddr,
u32 *cfg_base_addr, u64 *cfg_base_addr_index,
@@ -6938,6 +6940,21 @@ out_disable:
return rc;
}

+static void hpsa_free_cmd_pool(struct ctlr_info *h)
+{
+ kfree(h->cmd_pool_bits);
+ if (h->cmd_pool)
+ pci_free_consistent(h->pdev,
+ h->nr_cmds * sizeof(struct CommandList),
+ h->cmd_pool,
+ h->cmd_pool_dhandle);
+ if (h->errinfo_pool)
+ pci_free_consistent(h->pdev,
+ h->nr_cmds * sizeof(struct ErrorInfo),
+ h->errinfo_pool,
+ h->errinfo_pool_dhandle);
+}
+
static int hpsa_alloc_cmd_pool(struct ctlr_info *h)
{
h->cmd_pool_bits = kzalloc(
@@ -6962,28 +6979,6 @@ clean_up:
return -ENOMEM;
}

-static void hpsa_free_cmd_pool(struct ctlr_info *h)
-{
- kfree(h->cmd_pool_bits);
- if (h->cmd_pool)
- pci_free_consistent(h->pdev,
- h->nr_cmds * sizeof(struct CommandList),
- h->cmd_pool, h->cmd_pool_dhandle);
- if (h->ioaccel2_cmd_pool)
- pci_free_consistent(h->pdev,
- h->nr_cmds * sizeof(*h->ioaccel2_cmd_pool),
- h->ioaccel2_cmd_pool, h->ioaccel2_cmd_pool_dhandle);
- if (h->errinfo_pool)
- pci_free_consistent(h->pdev,
- h->nr_cmds * sizeof(struct ErrorInfo),
- h->errinfo_pool,
- h->errinfo_pool_dhandle);
- if (h->ioaccel_cmd_pool)
- pci_free_consistent(h->pdev,
- h->nr_cmds * sizeof(struct io_accel1_cmd),
- h->ioaccel_cmd_pool, h->ioaccel_cmd_pool_dhandle);
-}
-
static void hpsa_irq_affinity_hints(struct ctlr_info *h)
{
int i, cpu;
@@ -7104,8 +7099,10 @@ static void hpsa_free_reply_queues(struct ctlr_info *h)
for (i = 0; i < h->nreply_queues; i++) {
if (!h->reply_queue[i].head)
continue;
- pci_free_consistent(h->pdev, h->reply_queue_size,
- h->reply_queue[i].head, h->reply_queue[i].busaddr);
+ pci_free_consistent(h->pdev,
+ h->reply_queue_size,
+ h->reply_queue[i].head,
+ h->reply_queue[i].busaddr);
h->reply_queue[i].head = NULL;
h->reply_queue[i].busaddr = 0;
}
@@ -7116,9 +7113,10 @@ static void hpsa_undo_allocations_after_kdump_soft_reset(struct ctlr_info *h)
hpsa_free_irqs(h);
hpsa_free_sg_chain_blocks(h);
hpsa_free_cmd_pool(h);
- kfree(h->ioaccel1_blockFetchTable);
- kfree(h->blockFetchTable);
- hpsa_free_reply_queues(h);
+ kfree(h->blockFetchTable); /* perf 2 */
+ hpsa_free_reply_queues(h); /* perf 1 */
+ hpsa_free_ioaccel1_cmd_and_bft(h); /* perf 1 */
+ hpsa_free_ioaccel2_cmd_and_bft(h); /* perf 1 */
hpsa_free_cfgtables(h); /* pci_init 4 */
iounmap(h->vaddr); /* pci_init 3 */
hpsa_disable_interrupt_mode(h); /* pci_init 2 */
@@ -7548,6 +7546,8 @@ reinit_after_soft_reset:
clean4:
hpsa_free_sg_chain_blocks(h);
hpsa_free_cmd_pool(h);
+ hpsa_free_ioaccel1_cmd_and_bft(h);
+ hpsa_free_ioaccel2_cmd_and_bft(h);
clean2_and_free_irqs:
hpsa_free_irqs(h);
clean2:
@@ -7649,17 +7649,11 @@ static void hpsa_remove_one(struct pci_dev *pdev)

hpsa_free_device_info(h);
hpsa_free_sg_chain_blocks(h);
- pci_free_consistent(h->pdev,
- h->nr_cmds * sizeof(struct CommandList),
- h->cmd_pool, h->cmd_pool_dhandle);
- pci_free_consistent(h->pdev,
- h->nr_cmds * sizeof(struct ErrorInfo),
- h->errinfo_pool, h->errinfo_pool_dhandle);
- hpsa_free_reply_queues(h);
- kfree(h->cmd_pool_bits);
- kfree(h->blockFetchTable);
- kfree(h->ioaccel1_blockFetchTable);
- kfree(h->ioaccel2_blockFetchTable);
+ kfree(h->blockFetchTable); /* perf 2 */
+ hpsa_free_reply_queues(h); /* perf 1 */
+ hpsa_free_ioaccel1_cmd_and_bft(h); /* perf 1 */
+ hpsa_free_ioaccel2_cmd_and_bft(h); /* perf 1 */
+ hpsa_free_cmd_pool(h); /* init_one 5 */
kfree(h->hba_inquiry_data);

/* includes hpsa_disable_interrupt_mode - pci_init 2 */
@@ -7906,6 +7900,17 @@ static int hpsa_enter_performant_mode(struct ctlr_info *h, u32 trans_support)
return 0;
}

+/* Free ioaccel1 mode command blocks and block fetch table */
+static void hpsa_free_ioaccel1_cmd_and_bft(struct ctlr_info *h)
+{
+ if (h->ioaccel_cmd_pool)
+ pci_free_consistent(h->pdev,
+ h->nr_cmds * sizeof(*h->ioaccel_cmd_pool),
+ h->ioaccel_cmd_pool,
+ h->ioaccel_cmd_pool_dhandle);
+ kfree(h->ioaccel1_blockFetchTable);
+}
+
/* Allocate ioaccel1 mode command blocks and block fetch table */
static int hpsa_alloc_ioaccel1_cmd_and_bft(struct ctlr_info *h)
{
@@ -7938,14 +7943,21 @@ static int hpsa_alloc_ioaccel1_cmd_and_bft(struct ctlr_info *h)
return 0;

clean_up:
- if (h->ioaccel_cmd_pool)
- pci_free_consistent(h->pdev,
- h->nr_cmds * sizeof(*h->ioaccel_cmd_pool),
- h->ioaccel_cmd_pool, h->ioaccel_cmd_pool_dhandle);
- kfree(h->ioaccel1_blockFetchTable);
+ hpsa_free_ioaccel1_cmd_and_bft(h);
return 1;
}

+/* Free ioaccel2 mode command blocks and block fetch table */
+static void hpsa_free_ioaccel2_cmd_and_bft(struct ctlr_info *h)
+{
+ if (h->ioaccel2_cmd_pool)
+ pci_free_consistent(h->pdev,
+ h->nr_cmds * sizeof(*h->ioaccel2_cmd_pool),
+ h->ioaccel2_cmd_pool,
+ h->ioaccel2_cmd_pool_dhandle);
+ kfree(h->ioaccel2_blockFetchTable);
+}
+
/* Allocate ioaccel2 mode command blocks and block fetch table */
static int hpsa_alloc_ioaccel2_cmd_and_bft(struct ctlr_info *h)
{
@@ -7976,11 +7988,7 @@ static int hpsa_alloc_ioaccel2_cmd_and_bft(struct ctlr_info *h)
return 0;

clean_up:
- if (h->ioaccel2_cmd_pool)
- pci_free_consistent(h->pdev,
- h->nr_cmds * sizeof(*h->ioaccel2_cmd_pool),
- h->ioaccel2_cmd_pool, h->ioaccel2_cmd_pool_dhandle);
- kfree(h->ioaccel2_blockFetchTable);
+ hpsa_free_ioaccel2_cmd_and_bft(h);
return 1;
}