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author | Linus Torvalds <torvalds@linux-foundation.org> | 2008-10-11 18:33:18 +0200 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2008-10-11 18:33:18 +0200 |
commit | 4dd9ec4946b4651a295d3bc8df9c15ac692a8f4e (patch) | |
tree | afb300c752de7175bb2df4722d5c857e070c75d9 /drivers/block/aoe | |
parent | Merge git://git.kernel.org/pub/scm/linux/kernel/git/sfrench/cifs-2.6 (diff) | |
parent | Merge branch 'r8169' of git://git.kernel.org/pub/scm/linux/kernel/git/romieu/... (diff) | |
download | linux-4dd9ec4946b4651a295d3bc8df9c15ac692a8f4e.tar.xz linux-4dd9ec4946b4651a295d3bc8df9c15ac692a8f4e.zip |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6: (1075 commits)
myri10ge: update driver version number to 1.4.3-1.369
r8169: add shutdown handler
r8169: preliminary 8168d support
r8169: support additional 8168cp chipset
r8169: change default behavior for mildly identified 8168c chipsets
r8169: add a new 8168cp flavor
r8169: add a new 8168c flavor (bis)
r8169: add a new 8168c flavor
r8169: sync existing 8168 device hardware start sequences with vendor driver
r8169: 8168b Tx performance tweak
r8169: make room for more specific 8168 hardware start procedure
r8169: shuffle some registers handling around (8168 operation only)
r8169: new phy init parameters for the 8168b
r8169: update phy init parameters
r8169: wake up the PHY of the 8168
af_key: fix SADB_X_SPDDELETE response
ath9k: Fix return code when ath9k_hw_setpower() fails on reset
ath9k: remove nasty FAIL macro from ath9k_hw_reset()
gre: minor cleanups in netlink interface
gre: fix copy and paste error
...
Diffstat (limited to 'drivers/block/aoe')
-rw-r--r-- | drivers/block/aoe/aoe.h | 9 | ||||
-rw-r--r-- | drivers/block/aoe/aoeblk.c | 8 | ||||
-rw-r--r-- | drivers/block/aoe/aoechr.c | 8 | ||||
-rw-r--r-- | drivers/block/aoe/aoecmd.c | 85 | ||||
-rw-r--r-- | drivers/block/aoe/aoedev.c | 12 | ||||
-rw-r--r-- | drivers/block/aoe/aoemain.c | 1 | ||||
-rw-r--r-- | drivers/block/aoe/aoenet.c | 9 |
7 files changed, 57 insertions, 75 deletions
diff --git a/drivers/block/aoe/aoe.h b/drivers/block/aoe/aoe.h index 5b4c6e649c11..93f3690396a5 100644 --- a/drivers/block/aoe/aoe.h +++ b/drivers/block/aoe/aoe.h @@ -159,11 +159,8 @@ struct aoedev { sector_t ssize; struct timer_list timer; spinlock_t lock; - struct sk_buff *sendq_hd; /* packets needing to be sent, list head */ - struct sk_buff *sendq_tl; - struct sk_buff *skbpool_hd; - struct sk_buff *skbpool_tl; - int nskbpool; + struct sk_buff_head sendq; + struct sk_buff_head skbpool; mempool_t *bufpool; /* for deadlock-free Buf allocation */ struct list_head bufq; /* queue of bios to work on */ struct buf *inprocess; /* the one we're currently working on */ @@ -199,7 +196,7 @@ int aoedev_flush(const char __user *str, size_t size); int aoenet_init(void); void aoenet_exit(void); -void aoenet_xmit(struct sk_buff *); +void aoenet_xmit(struct sk_buff_head *); int is_aoe_netif(struct net_device *ifp); int set_aoe_iflist(const char __user *str, size_t size); diff --git a/drivers/block/aoe/aoeblk.c b/drivers/block/aoe/aoeblk.c index aa69556c3485..b82654e883a7 100644 --- a/drivers/block/aoe/aoeblk.c +++ b/drivers/block/aoe/aoeblk.c @@ -158,9 +158,9 @@ aoeblk_release(struct inode *inode, struct file *filp) static int aoeblk_make_request(struct request_queue *q, struct bio *bio) { + struct sk_buff_head queue; struct aoedev *d; struct buf *buf; - struct sk_buff *sl; ulong flags; blk_queue_bounce(q, &bio); @@ -213,11 +213,11 @@ aoeblk_make_request(struct request_queue *q, struct bio *bio) list_add_tail(&buf->bufs, &d->bufq); aoecmd_work(d); - sl = d->sendq_hd; - d->sendq_hd = d->sendq_tl = NULL; + __skb_queue_head_init(&queue); + skb_queue_splice_init(&d->sendq, &queue); spin_unlock_irqrestore(&d->lock, flags); - aoenet_xmit(sl); + aoenet_xmit(&queue); return 0; } diff --git a/drivers/block/aoe/aoechr.c b/drivers/block/aoe/aoechr.c index 181ebb85f0be..1f56d2c5b7fc 100644 --- a/drivers/block/aoe/aoechr.c +++ b/drivers/block/aoe/aoechr.c @@ -9,6 +9,7 @@ #include <linux/completion.h> #include <linux/delay.h> #include <linux/smp_lock.h> +#include <linux/skbuff.h> #include "aoe.h" enum { @@ -103,7 +104,12 @@ loop: spin_lock_irqsave(&d->lock, flags); goto loop; } - aoenet_xmit(skb); + if (skb) { + struct sk_buff_head queue; + __skb_queue_head_init(&queue); + __skb_queue_tail(&queue, skb); + aoenet_xmit(&queue); + } aoecmd_cfg(major, minor); return 0; } diff --git a/drivers/block/aoe/aoecmd.c b/drivers/block/aoe/aoecmd.c index 961d29a53cab..71ff78c9e4d6 100644 --- a/drivers/block/aoe/aoecmd.c +++ b/drivers/block/aoe/aoecmd.c @@ -114,29 +114,22 @@ ifrotate(struct aoetgt *t) static void skb_pool_put(struct aoedev *d, struct sk_buff *skb) { - if (!d->skbpool_hd) - d->skbpool_hd = skb; - else - d->skbpool_tl->next = skb; - d->skbpool_tl = skb; + __skb_queue_tail(&d->skbpool, skb); } static struct sk_buff * skb_pool_get(struct aoedev *d) { - struct sk_buff *skb; + struct sk_buff *skb = skb_peek(&d->skbpool); - skb = d->skbpool_hd; if (skb && atomic_read(&skb_shinfo(skb)->dataref) == 1) { - d->skbpool_hd = skb->next; - skb->next = NULL; + __skb_unlink(skb, &d->skbpool); return skb; } - if (d->nskbpool < NSKBPOOLMAX - && (skb = new_skb(ETH_ZLEN))) { - d->nskbpool++; + if (skb_queue_len(&d->skbpool) < NSKBPOOLMAX && + (skb = new_skb(ETH_ZLEN))) return skb; - } + return NULL; } @@ -293,29 +286,22 @@ aoecmd_ata_rw(struct aoedev *d) skb->dev = t->ifp->nd; skb = skb_clone(skb, GFP_ATOMIC); - if (skb) { - if (d->sendq_hd) - d->sendq_tl->next = skb; - else - d->sendq_hd = skb; - d->sendq_tl = skb; - } + if (skb) + __skb_queue_tail(&d->sendq, skb); return 1; } /* some callers cannot sleep, and they can call this function, * transmitting the packets later, when interrupts are on */ -static struct sk_buff * -aoecmd_cfg_pkts(ushort aoemajor, unsigned char aoeminor, struct sk_buff **tail) +static void +aoecmd_cfg_pkts(ushort aoemajor, unsigned char aoeminor, struct sk_buff_head *queue) { struct aoe_hdr *h; struct aoe_cfghdr *ch; - struct sk_buff *skb, *sl, *sl_tail; + struct sk_buff *skb; struct net_device *ifp; - sl = sl_tail = NULL; - read_lock(&dev_base_lock); for_each_netdev(&init_net, ifp) { dev_hold(ifp); @@ -329,8 +315,7 @@ aoecmd_cfg_pkts(ushort aoemajor, unsigned char aoeminor, struct sk_buff **tail) } skb_put(skb, sizeof *h + sizeof *ch); skb->dev = ifp; - if (sl_tail == NULL) - sl_tail = skb; + __skb_queue_tail(queue, skb); h = (struct aoe_hdr *) skb_mac_header(skb); memset(h, 0, sizeof *h + sizeof *ch); @@ -342,16 +327,10 @@ aoecmd_cfg_pkts(ushort aoemajor, unsigned char aoeminor, struct sk_buff **tail) h->minor = aoeminor; h->cmd = AOECMD_CFG; - skb->next = sl; - sl = skb; cont: dev_put(ifp); } read_unlock(&dev_base_lock); - - if (tail != NULL) - *tail = sl_tail; - return sl; } static void @@ -406,11 +385,7 @@ resend(struct aoedev *d, struct aoetgt *t, struct frame *f) skb = skb_clone(skb, GFP_ATOMIC); if (skb == NULL) return; - if (d->sendq_hd) - d->sendq_tl->next = skb; - else - d->sendq_hd = skb; - d->sendq_tl = skb; + __skb_queue_tail(&d->sendq, skb); } static int @@ -508,16 +483,15 @@ ata_scnt(unsigned char *packet) { static void rexmit_timer(ulong vp) { + struct sk_buff_head queue; struct aoedev *d; struct aoetgt *t, **tt, **te; struct aoeif *ifp; struct frame *f, *e; - struct sk_buff *sl; register long timeout; ulong flags, n; d = (struct aoedev *) vp; - sl = NULL; /* timeout is always ~150% of the moving average */ timeout = d->rttavg; @@ -589,7 +563,7 @@ rexmit_timer(ulong vp) } } - if (d->sendq_hd) { + if (!skb_queue_empty(&d->sendq)) { n = d->rttavg <<= 1; if (n > MAXTIMER) d->rttavg = MAXTIMER; @@ -600,15 +574,15 @@ rexmit_timer(ulong vp) aoecmd_work(d); } - sl = d->sendq_hd; - d->sendq_hd = d->sendq_tl = NULL; + __skb_queue_head_init(&queue); + skb_queue_splice_init(&d->sendq, &queue); d->timer.expires = jiffies + TIMERTICK; add_timer(&d->timer); spin_unlock_irqrestore(&d->lock, flags); - aoenet_xmit(sl); + aoenet_xmit(&queue); } /* enters with d->lock held */ @@ -772,12 +746,12 @@ diskstats(struct gendisk *disk, struct bio *bio, ulong duration, sector_t sector void aoecmd_ata_rsp(struct sk_buff *skb) { + struct sk_buff_head queue; struct aoedev *d; struct aoe_hdr *hin, *hout; struct aoe_atahdr *ahin, *ahout; struct frame *f; struct buf *buf; - struct sk_buff *sl; struct aoetgt *t; struct aoeif *ifp; register long n; @@ -898,21 +872,21 @@ aoecmd_ata_rsp(struct sk_buff *skb) aoecmd_work(d); xmit: - sl = d->sendq_hd; - d->sendq_hd = d->sendq_tl = NULL; + __skb_queue_head_init(&queue); + skb_queue_splice_init(&d->sendq, &queue); spin_unlock_irqrestore(&d->lock, flags); - aoenet_xmit(sl); + aoenet_xmit(&queue); } void aoecmd_cfg(ushort aoemajor, unsigned char aoeminor) { - struct sk_buff *sl; - - sl = aoecmd_cfg_pkts(aoemajor, aoeminor, NULL); + struct sk_buff_head queue; - aoenet_xmit(sl); + __skb_queue_head_init(&queue); + aoecmd_cfg_pkts(aoemajor, aoeminor, &queue); + aoenet_xmit(&queue); } struct sk_buff * @@ -1081,7 +1055,12 @@ aoecmd_cfg_rsp(struct sk_buff *skb) spin_unlock_irqrestore(&d->lock, flags); - aoenet_xmit(sl); + if (sl) { + struct sk_buff_head queue; + __skb_queue_head_init(&queue); + __skb_queue_tail(&queue, sl); + aoenet_xmit(&queue); + } } void diff --git a/drivers/block/aoe/aoedev.c b/drivers/block/aoe/aoedev.c index 6a8038d115b5..cc250577d405 100644 --- a/drivers/block/aoe/aoedev.c +++ b/drivers/block/aoe/aoedev.c @@ -188,14 +188,12 @@ skbfree(struct sk_buff *skb) static void skbpoolfree(struct aoedev *d) { - struct sk_buff *skb; + struct sk_buff *skb, *tmp; - while ((skb = d->skbpool_hd)) { - d->skbpool_hd = skb->next; - skb->next = NULL; + skb_queue_walk_safe(&d->skbpool, skb, tmp) skbfree(skb); - } - d->skbpool_tl = NULL; + + __skb_queue_head_init(&d->skbpool); } /* find it or malloc it */ @@ -217,6 +215,8 @@ aoedev_by_sysminor_m(ulong sysminor) goto out; INIT_WORK(&d->work, aoecmd_sleepwork); spin_lock_init(&d->lock); + skb_queue_head_init(&d->sendq); + skb_queue_head_init(&d->skbpool); init_timer(&d->timer); d->timer.data = (ulong) d; d->timer.function = dummy_timer; diff --git a/drivers/block/aoe/aoemain.c b/drivers/block/aoe/aoemain.c index 7b15a5e9cec0..7f83ad90e76f 100644 --- a/drivers/block/aoe/aoemain.c +++ b/drivers/block/aoe/aoemain.c @@ -7,6 +7,7 @@ #include <linux/hdreg.h> #include <linux/blkdev.h> #include <linux/module.h> +#include <linux/skbuff.h> #include "aoe.h" MODULE_LICENSE("GPL"); diff --git a/drivers/block/aoe/aoenet.c b/drivers/block/aoe/aoenet.c index 0c81ca731287..9157d64270cb 100644 --- a/drivers/block/aoe/aoenet.c +++ b/drivers/block/aoe/aoenet.c @@ -95,13 +95,12 @@ mac_addr(char addr[6]) } void -aoenet_xmit(struct sk_buff *sl) +aoenet_xmit(struct sk_buff_head *queue) { - struct sk_buff *skb; + struct sk_buff *skb, *tmp; - while ((skb = sl)) { - sl = sl->next; - skb->next = skb->prev = NULL; + skb_queue_walk_safe(queue, skb, tmp) { + __skb_unlink(skb, queue); dev_queue_xmit(skb); } } |