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scsi: target: tcmu: Move some functions without code change

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This patch just moves one block of code containing some functions inside
target_core_user.c to avoid adding prototypes in next patch.

Link: https://lore.kernel.org/r/20210218175039.7829-2-bostroesser@gmail.com
Reviewed-by: Mike Christie <michael.christie@oracle.com>
Signed-off-by: Bodo Stroesser <bostroesser@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This commit is contained in:
Bodo Stroesser 2021-02-18 18:50:38 +01:00 committed by Martin K. Petersen
parent 9acced3f58
commit 43bf922cdd
1 changed files with 80 additions and 80 deletions
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160
drivers/target/target_core_user.c
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@ -1566,6 +1566,86 @@ static struct se_device *tcmu_alloc_device(struct se_hba *hba, const char *name)
return &udev->se_dev;
}
static void tcmu_dev_call_rcu(struct rcu_head *p)
{
struct se_device *dev = container_of(p, struct se_device, rcu_head);
struct tcmu_dev *udev = TCMU_DEV(dev);
kfree(udev->uio_info.name);
kfree(udev->name);
kfree(udev);
}
static int tcmu_check_and_free_pending_cmd(struct tcmu_cmd *cmd)
{
if (test_bit(TCMU_CMD_BIT_EXPIRED, &cmd->flags)) {
kmem_cache_free(tcmu_cmd_cache, cmd);
return 0;
}
return -EINVAL;
}
static void tcmu_blocks_release(struct radix_tree_root *blocks,
int start, int end)
{
int i;
struct page *page;
for (i = start; i < end; i++) {
page = radix_tree_delete(blocks, i);
if (page) {
__free_page(page);
atomic_dec(&global_db_count);
}
}
}
static void tcmu_remove_all_queued_tmr(struct tcmu_dev *udev)
{
struct tcmu_tmr *tmr, *tmp;
list_for_each_entry_safe(tmr, tmp, &udev->tmr_queue, queue_entry) {
list_del_init(&tmr->queue_entry);
kfree(tmr);
}
}
static void tcmu_dev_kref_release(struct kref *kref)
{
struct tcmu_dev *udev = container_of(kref, struct tcmu_dev, kref);
struct se_device *dev = &udev->se_dev;
struct tcmu_cmd *cmd;
bool all_expired = true;
int i;
vfree(udev->mb_addr);
udev->mb_addr = NULL;
spin_lock_bh(&timed_out_udevs_lock);
if (!list_empty(&udev->timedout_entry))
list_del(&udev->timedout_entry);
spin_unlock_bh(&timed_out_udevs_lock);
/* Upper layer should drain all requests before calling this */
mutex_lock(&udev->cmdr_lock);
idr_for_each_entry(&udev->commands, cmd, i) {
if (tcmu_check_and_free_pending_cmd(cmd) != 0)
all_expired = false;
}
/* There can be left over TMR cmds. Remove them. */
tcmu_remove_all_queued_tmr(udev);
if (!list_empty(&udev->qfull_queue))
all_expired = false;
idr_destroy(&udev->commands);
WARN_ON(!all_expired);
tcmu_blocks_release(&udev->data_blocks, 0, udev->dbi_max + 1);
bitmap_free(udev->data_bitmap);
mutex_unlock(&udev->cmdr_lock);
call_rcu(&dev->rcu_head, tcmu_dev_call_rcu);
}
static void run_qfull_queue(struct tcmu_dev *udev, bool fail)
{
struct tcmu_cmd *tcmu_cmd, *tmp_cmd;
@ -1751,86 +1831,6 @@ static int tcmu_open(struct uio_info *info, struct inode *inode)
return 0;
}
static void tcmu_dev_call_rcu(struct rcu_head *p)
{
struct se_device *dev = container_of(p, struct se_device, rcu_head);
struct tcmu_dev *udev = TCMU_DEV(dev);
kfree(udev->uio_info.name);
kfree(udev->name);
kfree(udev);
}
static int tcmu_check_and_free_pending_cmd(struct tcmu_cmd *cmd)
{
if (test_bit(TCMU_CMD_BIT_EXPIRED, &cmd->flags)) {
kmem_cache_free(tcmu_cmd_cache, cmd);
return 0;
}
return -EINVAL;
}
static void tcmu_blocks_release(struct radix_tree_root *blocks,
int start, int end)
{
int i;
struct page *page;
for (i = start; i < end; i++) {
page = radix_tree_delete(blocks, i);
if (page) {
__free_page(page);
atomic_dec(&global_db_count);
}
}
}
static void tcmu_remove_all_queued_tmr(struct tcmu_dev *udev)
{
struct tcmu_tmr *tmr, *tmp;
list_for_each_entry_safe(tmr, tmp, &udev->tmr_queue, queue_entry) {
list_del_init(&tmr->queue_entry);
kfree(tmr);
}
}
static void tcmu_dev_kref_release(struct kref *kref)
{
struct tcmu_dev *udev = container_of(kref, struct tcmu_dev, kref);
struct se_device *dev = &udev->se_dev;
struct tcmu_cmd *cmd;
bool all_expired = true;
int i;
vfree(udev->mb_addr);
udev->mb_addr = NULL;
spin_lock_bh(&timed_out_udevs_lock);
if (!list_empty(&udev->timedout_entry))
list_del(&udev->timedout_entry);
spin_unlock_bh(&timed_out_udevs_lock);
/* Upper layer should drain all requests before calling this */
mutex_lock(&udev->cmdr_lock);
idr_for_each_entry(&udev->commands, cmd, i) {
if (tcmu_check_and_free_pending_cmd(cmd) != 0)
all_expired = false;
}
/* There can be left over TMR cmds. Remove them. */
tcmu_remove_all_queued_tmr(udev);
if (!list_empty(&udev->qfull_queue))
all_expired = false;
idr_destroy(&udev->commands);
WARN_ON(!all_expired);
tcmu_blocks_release(&udev->data_blocks, 0, udev->dbi_max + 1);
bitmap_free(udev->data_bitmap);
mutex_unlock(&udev->cmdr_lock);
call_rcu(&dev->rcu_head, tcmu_dev_call_rcu);
}
static int tcmu_release(struct uio_info *info, struct inode *inode)
{
struct tcmu_dev *udev = container_of(info, struct tcmu_dev, uio_info);