Commit a0f14d8b authored by Christoph Hellwig's avatar Christoph Hellwig Committed by Jens Axboe

block: factor out a alloc_io_context helper

Factor out a helper that just allocate an I/O context.
Signed-off-by: default avatarChristoph Hellwig <hch@lst.de>
Link: https://lore.kernel.org/r/20211126115817.2087431-11-hch@lst.deSigned-off-by: default avatarJens Axboe <axboe@kernel.dk>
parent 50569c24
......@@ -249,18 +249,15 @@ void ioc_clear_queue(struct request_queue *q)
__ioc_clear_queue(&icq_list);
}
static int create_task_io_context(struct task_struct *task, gfp_t gfp_flags,
int node)
static struct io_context *alloc_io_context(gfp_t gfp_flags, int node)
{
struct io_context *ioc;
int ret;
ioc = kmem_cache_alloc_node(iocontext_cachep, gfp_flags | __GFP_ZERO,
node);
if (unlikely(!ioc))
return -ENOMEM;
return NULL;
/* initialize */
atomic_long_set(&ioc->refcount, 1);
atomic_set(&ioc->nr_tasks, 1);
atomic_set(&ioc->active_ref, 1);
......@@ -268,6 +265,18 @@ static int create_task_io_context(struct task_struct *task, gfp_t gfp_flags,
INIT_RADIX_TREE(&ioc->icq_tree, GFP_ATOMIC);
INIT_HLIST_HEAD(&ioc->icq_list);
INIT_WORK(&ioc->release_work, ioc_release_fn);
return ioc;
}
static int create_task_io_context(struct task_struct *task, gfp_t gfp_flags,
int node)
{
struct io_context *ioc;
int ret;
ioc = alloc_io_context(gfp_flags, node);
if (!ioc)
return -ENOMEM;
/*
* Try to install. ioc shouldn't be installed if someone else
......
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