block: avoid duplicate calls to get_part() in disk stat code

[linux-2.6-omap-h63xx.git] / drivers / block / aoe / aoecmd.c

diff --git a/drivers/block/aoe/aoecmd.c b/drivers/block/aoe/aoecmd.c
index 1e37cf6d92147a13f4ce619313a34ec49ee6b813..41f818be2f7ec8c4c737acaa16ecfeddc94f42b4 100644 (file)
--- a/drivers/block/aoe/aoecmd.c
+++ b/drivers/block/aoe/aoecmd.c
@@ -1,4 +1,4 @@
-/* Copyright (c) 2006 Coraid, Inc.  See COPYING for GPL terms. */
+/* Copyright (c) 2007 Coraid, Inc.  See COPYING for GPL terms. */
 /*
  * aoecmd.c
  * Filesystem request handling methods
@@ -668,16 +668,16 @@ ataid_complete(struct aoedev *d, struct aoetgt *t, unsigned char *id)
        u16 n;
 
        /* word 83: command set supported */
-       n = le16_to_cpu(get_unaligned((__le16 *) &id[83<<1]));
+       n = get_unaligned_le16(&id[83 << 1]);
 
        /* word 86: command set/feature enabled */
-       n |= le16_to_cpu(get_unaligned((__le16 *) &id[86<<1]));
+       n |= get_unaligned_le16(&id[86 << 1]);
 
        if (n & (1<<10)) {      /* bit 10: LBA 48 */
                d->flags |= DEVFL_EXT;
 
                /* word 100: number lba48 sectors */
-               ssize = le64_to_cpu(get_unaligned((__le64 *) &id[100<<1]));
+               ssize = get_unaligned_le64(&id[100 << 1]);
 
                /* set as in ide-disk.c:init_idedisk_capacity */
                d->geo.cylinders = ssize;
@@ -688,12 +688,12 @@ ataid_complete(struct aoedev *d, struct aoetgt *t, unsigned char *id)
                d->flags &= ~DEVFL_EXT;
 
                /* number lba28 sectors */
-               ssize = le32_to_cpu(get_unaligned((__le32 *) &id[60<<1]));
+               ssize = get_unaligned_le32(&id[60 << 1]);
 
                /* NOTE: obsolete in ATA 6 */
-               d->geo.cylinders = le16_to_cpu(get_unaligned((__le16 *) &id[54<<1]));
-               d->geo.heads = le16_to_cpu(get_unaligned((__le16 *) &id[55<<1]));
-               d->geo.sectors = le16_to_cpu(get_unaligned((__le16 *) &id[56<<1]));
+               d->geo.cylinders = get_unaligned_le16(&id[54 << 1]);
+               d->geo.heads = get_unaligned_le16(&id[55 << 1]);
+               d->geo.sectors = get_unaligned_le16(&id[56 << 1]);
        }
 
        if (d->ssize != ssize)
@@ -751,15 +751,17 @@ gettgt(struct aoedev *d, char *addr)
 }
 
 static inline void
-diskstats(struct gendisk *disk, struct bio *bio, ulong duration)
+diskstats(struct gendisk *disk, struct bio *bio, ulong duration, sector_t sector)
 {
        unsigned long n_sect = bio->bi_size >> 9;
        const int rw = bio_data_dir(bio);
+       struct hd_struct *part;
 
-       disk_stat_inc(disk, ios[rw]);
-       disk_stat_add(disk, ticks[rw], duration);
-       disk_stat_add(disk, sectors[rw], n_sect);
-       disk_stat_add(disk, io_ticks, duration);
+       part = get_part(disk, sector);
+       all_stat_inc(disk, part, ios[rw], sector);
+       all_stat_add(disk, part, ticks[rw], duration, sector);
+       all_stat_add(disk, part, sectors[rw], n_sect, sector);
+       all_stat_add(disk, part, io_ticks, duration, sector);
 }
 
 void
@@ -779,7 +781,7 @@ aoecmd_ata_rsp(struct sk_buff *skb)
        u16 aoemajor;
 
        hin = (struct aoe_hdr *) skb_mac_header(skb);
-       aoemajor = be16_to_cpu(get_unaligned(&hin->major));
+       aoemajor = get_unaligned_be16(&hin->major);
        d = aoedev_by_aoeaddr(aoemajor, hin->minor);
        if (d == NULL) {
                snprintf(ebuf, sizeof ebuf, "aoecmd_ata_rsp: ata response "
@@ -791,7 +793,7 @@ aoecmd_ata_rsp(struct sk_buff *skb)
 
        spin_lock_irqsave(&d->lock, flags);
 
-       n = be32_to_cpu(get_unaligned(&hin->tag));
+       n = get_unaligned_be32(&hin->tag);
        t = gettgt(d, hin->src);
        if (t == NULL) {
                printk(KERN_INFO "aoe: can't find target e%ld.%d:%012llx\n",
@@ -806,9 +808,9 @@ aoecmd_ata_rsp(struct sk_buff *skb)
                snprintf(ebuf, sizeof ebuf,
                        "%15s e%d.%d    tag=%08x@%08lx\n",
                        "unexpected rsp",
-                       be16_to_cpu(get_unaligned(&hin->major)),
+                       get_unaligned_be16(&hin->major),
                        hin->minor,
-                       be32_to_cpu(get_unaligned(&hin->tag)),
+                       get_unaligned_be32(&hin->tag),
                        jiffies);
                aoechr_error(ebuf);
                return;
@@ -873,13 +875,13 @@ aoecmd_ata_rsp(struct sk_buff *skb)
                        printk(KERN_INFO
                                "aoe: unrecognized ata command %2.2Xh for %d.%d\n",
                                ahout->cmdstat,
-                               be16_to_cpu(get_unaligned(&hin->major)),
+                               get_unaligned_be16(&hin->major),
                                hin->minor);
                }
        }
 
        if (buf && --buf->nframesout == 0 && buf->resid == 0) {
-               diskstats(d->gd, buf->bio, jiffies - buf->stime);
+               diskstats(d->gd, buf->bio, jiffies - buf->stime, buf->sector);
                n = (buf->flags & BUFFL_FAIL) ? -EIO : 0;
                bio_endio(buf->bio, n);
                mempool_free(buf, d->bufpool);