}
static int zram_bvec_rw(struct zram *zram, struct bio_vec *bvec, u32 index,
- int offset, int op)
+ int offset, bool is_write)
{
unsigned long start_time = jiffies;
+ int rw_acct = is_write ? REQ_OP_WRITE : REQ_OP_READ;
int ret;
- generic_start_io_acct(op, bvec->bv_len >> SECTOR_SHIFT,
+ generic_start_io_acct(rw_acct, bvec->bv_len >> SECTOR_SHIFT,
&zram->disk->part0);
- if (!op_is_write(op)) {
+ if (!is_write) {
atomic64_inc(&zram->stats.num_reads);
ret = zram_bvec_read(zram, bvec, index, offset);
} else {
ret = zram_bvec_write(zram, bvec, index, offset);
}
- generic_end_io_acct(op, &zram->disk->part0, start_time);
+ generic_end_io_acct(rw_acct, &zram->disk->part0, start_time);
if (unlikely(ret)) {
- if (!op_is_write(op))
+ if (!is_write)
atomic64_inc(&zram->stats.failed_reads);
else
atomic64_inc(&zram->stats.failed_writes);
bv.bv_offset = bvec.bv_offset;
if (zram_bvec_rw(zram, &bv, index, offset,
- bio_op(bio)) < 0)
+ op_is_write(bio_op(bio))) < 0)
goto out;
bv.bv_len = bvec.bv_len - max_transfer_size;
bv.bv_offset += max_transfer_size;
if (zram_bvec_rw(zram, &bv, index + 1, 0,
- bio_op(bio)) < 0)
+ op_is_write(bio_op(bio))) < 0)
goto out;
} else
if (zram_bvec_rw(zram, &bvec, index, offset,
- bio_op(bio)) < 0)
+ op_is_write(bio_op(bio))) < 0)
goto out;
update_position(&index, &offset, &bvec);
}
static int zram_rw_page(struct block_device *bdev, sector_t sector,
- struct page *page, int op)
+ struct page *page, bool is_write)
{
int offset, err = -EIO;
u32 index;
bv.bv_len = PAGE_SIZE;
bv.bv_offset = 0;
- err = zram_bvec_rw(zram, &bv, index, offset, op);
+ err = zram_bvec_rw(zram, &bv, index, offset, is_write);
put_zram:
zram_meta_put(zram);
out:
* (e.g., SetPageError, set_page_dirty and extra works).
*/
if (err == 0)
- page_endio(page, op, 0);
+ page_endio(page, is_write, 0);
return err;
}