diff options
Diffstat (limited to 'drivers/block')
| -rw-r--r-- | drivers/block/aoe/aoecmd.c | 23 |
1 files changed, 21 insertions, 2 deletions
diff --git a/drivers/block/aoe/aoecmd.c b/drivers/block/aoe/aoecmd.c index 965ece2c7e4..13bb69d2abb 100644 --- a/drivers/block/aoe/aoecmd.c +++ b/drivers/block/aoe/aoecmd.c @@ -735,6 +735,21 @@ diskstats(struct gendisk *disk, struct bio *bio, ulong duration, sector_t sector part_stat_unlock(); } +/* + * Ensure we don't create aliases in VI caches + */ +static inline void +killalias(struct bio *bio) +{ + struct bio_vec *bv; + int i; + + if (bio_data_dir(bio) == READ) + __bio_for_each_segment(bv, bio, i, 0) { + flush_dcache_page(bv->bv_page); + } +} + void aoecmd_ata_rsp(struct sk_buff *skb) { @@ -853,8 +868,12 @@ aoecmd_ata_rsp(struct sk_buff *skb) if (buf && --buf->nframesout == 0 && buf->resid == 0) { diskstats(d->gd, buf->bio, jiffies - buf->stime, buf->sector); - n = (buf->flags & BUFFL_FAIL) ? -EIO : 0; - bio_endio(buf->bio, n); + if (buf->flags & BUFFL_FAIL) + bio_endio(buf->bio, -EIO); + else { + killalias(buf->bio); + bio_endio(buf->bio, 0); + } mempool_free(buf, d->bufpool); } |