If using pblk on a 32bit architecture, and there is a need to
perform a partial read, the partial read bitmap will only have
allocated 32 entries, where as 64 are needed.
Make sure that the read_bitmap is initialized to 64bits on 32bit
architectures as well.
Signed-off-by: Matias Bjørling <mb@xxxxxxxxxxx>
---
drivers/lightnvm/pblk-read.c | 14 +++++++-------
1 file changed, 7 insertions(+), 7 deletions(-)
diff --git a/drivers/lightnvm/pblk-read.c b/drivers/lightnvm/pblk-read.c
index 6e93c489ce57..671635275d56 100644
--- a/drivers/lightnvm/pblk-read.c
+++ b/drivers/lightnvm/pblk-read.c
@@ -401,7 +401,7 @@ int pblk_submit_read(struct pblk *pblk, struct bio
*bio)
struct pblk_g_ctx *r_ctx;
struct nvm_rq *rqd;
unsigned int bio_init_idx;
- unsigned long read_bitmap; /* Max 64 ppas per request */
+ DECLARE_BITMAP(read_bitmap, 64); /* Max 64 ppas per request */
int ret = NVM_IO_ERR;
/* logic error: lba out-of-bounds. Ignore read request */
@@ -413,7 +413,7 @@ int pblk_submit_read(struct pblk *pblk, struct bio
*bio)
generic_start_io_acct(q, READ, bio_sectors(bio),
&pblk->disk->part0);
- bitmap_zero(&read_bitmap, nr_secs);
+ bitmap_zero(read_bitmap, nr_secs);
rqd = pblk_alloc_rqd(pblk, PBLK_READ);
@@ -444,19 +444,19 @@ int pblk_submit_read(struct pblk *pblk, struct
bio *bio)
rqd->ppa_list = rqd->meta_list + pblk_dma_meta_size;
rqd->dma_ppa_list = rqd->dma_meta_list + pblk_dma_meta_size;
- pblk_read_ppalist_rq(pblk, rqd, bio, blba, &read_bitmap);
+ pblk_read_ppalist_rq(pblk, rqd, bio, blba, read_bitmap
> } else {
- pblk_read_rq(pblk, rqd, bio, blba, &read_bitmap);
+ pblk_read_rq(pblk, rqd, bio, blba, read_bitmap);
}
- if (bitmap_full(&read_bitmap, nr_secs)) {
+ if (bitmap_full(read_bitmap, nr_secs)) {
atomic_inc(&pblk->inflight_io);
__pblk_end_io_read(pblk, rqd, false);
return NVM_IO_DONE;
}
/* All sectors are to be read from the device */
- if (bitmap_empty(&read_bitmap, rqd->nr_ppas)) {
+ if (bitmap_empty(read_bitmap, rqd->nr_ppas)) {
struct bio *int_bio = NULL;
/* Clone read bio to deal with read errors internally */
@@ -480,7 +480,7 @@ int pblk_submit_read(struct pblk *pblk, struct bio
*bio)
/* The read bio request could be partially filled by the write
buffer,
* but there are some holes that need to be read from the drive.
*/
- return pblk_partial_read(pblk, rqd, bio, bio_init_idx,
&read_bitmap);
+ return pblk_partial_read(pblk, rqd, bio, bio_init_idx, read_bitmap);
fail_rqd_free:
pblk_free_rqd(pblk, rqd, PBLK_READ);
