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Linux 5.9 compat: make_request_fn replaced with submit_bio interface

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The make_request_fn and associated API was replaced recently in a
Linux 5.9 merge, to replace its functionality with a new submit_bio
member in struct block_device_operations.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Coleman Kane <ckane@colemankane.org>
Closes #10696
This commit is contained in:
Coleman Kane
2020-08-09 12:12:25 -04:00
committed by Brian Behlendorf
parent dcdc12e8ba
commit d817c17100
3 changed files with 74 additions and 38 deletions
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module/os/linux/zfs/zvol_os.c
+17 -1
View File
@@ -295,9 +295,17 @@ zvol_read(void *arg)
kmem_free(zvr, sizeof (zv_request_t));
}
#ifdef HAVE_SUBMIT_BIO_IN_BLOCK_DEVICE_OPERATIONS
static blk_qc_t
zvol_submit_bio(struct bio *bio)
#else
static MAKE_REQUEST_FN_RET
zvol_request(struct request_queue *q, struct bio *bio)
#endif
{
#ifdef HAVE_SUBMIT_BIO_IN_BLOCK_DEVICE_OPERATIONS
struct request_queue *q = bio->bi_disk->queue;
#endif
zvol_state_t *zv = q->queuedata;
fstrans_cookie_t cookie = spl_fstrans_mark();
uint64_t offset = BIO_BI_SECTOR(bio) << 9;
@@ -425,7 +433,8 @@ zvol_request(struct request_queue *q, struct bio *bio)
out:
spl_fstrans_unmark(cookie);
#if defined(HAVE_MAKE_REQUEST_FN_RET_QC)
#if defined(HAVE_MAKE_REQUEST_FN_RET_QC) || \
defined(HAVE_SUBMIT_BIO_IN_BLOCK_DEVICE_OPERATIONS)
return (BLK_QC_T_NONE);
#endif
}
@@ -737,6 +746,9 @@ static struct block_device_operations zvol_ops = {
.revalidate_disk = zvol_revalidate_disk,
.getgeo = zvol_getgeo,
.owner = THIS_MODULE,
#ifdef HAVE_SUBMIT_BIO_IN_BLOCK_DEVICE_OPERATIONS
.submit_bio = zvol_submit_bio,
#endif
};
/*
@@ -766,7 +778,11 @@ zvol_alloc(dev_t dev, const char *name)
list_link_init(&zv->zv_next);
mutex_init(&zv->zv_state_lock, NULL, MUTEX_DEFAULT, NULL);
#ifdef HAVE_SUBMIT_BIO_IN_BLOCK_DEVICE_OPERATIONS
zso->zvo_queue = blk_alloc_queue(NUMA_NO_NODE);
#else
zso->zvo_queue = blk_generic_alloc_queue(zvol_request, NUMA_NO_NODE);
#endif
if (zso->zvo_queue == NULL)
goto out_kmem;