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author | Linus Torvalds <torvalds@linux-foundation.org> | 2008-04-30 08:45:48 -0700 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2008-04-30 08:45:48 -0700 |
commit | 95dfec6ae1cb8c03406aac612a5642cbddb676b3 (patch) | |
tree | 978de715f45de94a8e79eb08a08ca5fb9dfd9dea /drivers/atm | |
parent | ae3a0064e6d69068b1c9fd075095da062430bda9 (diff) | |
parent | 159131149c2f56c1da5ae5e23ab9d5acef4916d1 (diff) | |
download | kernel_samsung_aries-95dfec6ae1cb8c03406aac612a5642cbddb676b3.zip kernel_samsung_aries-95dfec6ae1cb8c03406aac612a5642cbddb676b3.tar.gz kernel_samsung_aries-95dfec6ae1cb8c03406aac612a5642cbddb676b3.tar.bz2 |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (53 commits)
tcp: Overflow bug in Vegas
[IPv4] UFO: prevent generation of chained skb destined to UFO device
iwlwifi: move the selects to the tristate drivers
ipv4: annotate a few functions __init in ipconfig.c
atm: ambassador: vcc_sf semaphore to mutex
MAINTAINERS: The socketcan-core list is subscribers-only.
netfilter: nf_conntrack: padding breaks conntrack hash on ARM
ipv4: Update MTU to all related cache entries in ip_rt_frag_needed()
sch_sfq: use del_timer_sync() in sfq_destroy()
net: Add compat support for getsockopt (MCAST_MSFILTER)
net: Several cleanups for the setsockopt compat support.
ipvs: fix oops in backup for fwmark conn templates
bridge: kernel panic when unloading bridge module
bridge: fix error handling in br_add_if()
netfilter: {nfnetlink,ip,ip6}_queue: fix skb_over_panic when enlarging packets
netfilter: x_tables: fix net namespace leak when reading /proc/net/xxx_tables_names
netfilter: xt_TCPOPTSTRIP: signed tcphoff for ipv6_skip_exthdr() retval
tcp: Limit cwnd growth when deferring for GSO
tcp: Allow send-limited cwnd to grow up to max_burst when gso disabled
[netdrvr] gianfar: Determine TBIPA value dynamically
...
Diffstat (limited to 'drivers/atm')
-rw-r--r-- | drivers/atm/ambassador.c | 19 | ||||
-rw-r--r-- | drivers/atm/ambassador.h | 2 |
2 files changed, 11 insertions, 10 deletions
diff --git a/drivers/atm/ambassador.c b/drivers/atm/ambassador.c index 5aa12b0..6adb72a 100644 --- a/drivers/atm/ambassador.c +++ b/drivers/atm/ambassador.c @@ -33,6 +33,7 @@ #include <linux/interrupt.h> #include <linux/poison.h> #include <linux/bitrev.h> +#include <linux/mutex.h> #include <asm/atomic.h> #include <asm/io.h> @@ -1177,7 +1178,7 @@ static int amb_open (struct atm_vcc * atm_vcc) vcc->tx_frame_bits = tx_frame_bits; - down (&dev->vcc_sf); + mutex_lock(&dev->vcc_sf); if (dev->rxer[vci]) { // RXer on the channel already, just modify rate... cmd.request = cpu_to_be32 (SRB_MODIFY_VC_RATE); @@ -1203,7 +1204,7 @@ static int amb_open (struct atm_vcc * atm_vcc) schedule(); } dev->txer[vci].tx_present = 1; - up (&dev->vcc_sf); + mutex_unlock(&dev->vcc_sf); } if (rxtp->traffic_class != ATM_NONE) { @@ -1211,7 +1212,7 @@ static int amb_open (struct atm_vcc * atm_vcc) vcc->rx_info.pool = pool; - down (&dev->vcc_sf); + mutex_lock(&dev->vcc_sf); /* grow RX buffer pool */ if (!dev->rxq[pool].buffers_wanted) dev->rxq[pool].buffers_wanted = rx_lats; @@ -1237,7 +1238,7 @@ static int amb_open (struct atm_vcc * atm_vcc) schedule(); // this link allows RX frames through dev->rxer[vci] = atm_vcc; - up (&dev->vcc_sf); + mutex_unlock(&dev->vcc_sf); } // indicate readiness @@ -1262,7 +1263,7 @@ static void amb_close (struct atm_vcc * atm_vcc) { if (atm_vcc->qos.txtp.traffic_class != ATM_NONE) { command cmd; - down (&dev->vcc_sf); + mutex_lock(&dev->vcc_sf); if (dev->rxer[vci]) { // RXer still on the channel, just modify rate... XXX not really needed cmd.request = cpu_to_be32 (SRB_MODIFY_VC_RATE); @@ -1277,7 +1278,7 @@ static void amb_close (struct atm_vcc * atm_vcc) { dev->txer[vci].tx_present = 0; while (command_do (dev, &cmd)) schedule(); - up (&dev->vcc_sf); + mutex_unlock(&dev->vcc_sf); } // disable RXing @@ -1287,7 +1288,7 @@ static void amb_close (struct atm_vcc * atm_vcc) { // this is (the?) one reason why we need the amb_vcc struct unsigned char pool = vcc->rx_info.pool; - down (&dev->vcc_sf); + mutex_lock(&dev->vcc_sf); if (dev->txer[vci].tx_present) { // TXer still on the channel, just go to pool zero XXX not really needed cmd.request = cpu_to_be32 (SRB_MODIFY_VC_FLAGS); @@ -1314,7 +1315,7 @@ static void amb_close (struct atm_vcc * atm_vcc) { dev->rxq[pool].buffers_wanted = 0; drain_rx_pool (dev, pool); } - up (&dev->vcc_sf); + mutex_unlock(&dev->vcc_sf); } // free our structure @@ -2188,7 +2189,7 @@ static void setup_dev(amb_dev *dev, struct pci_dev *pci_dev) // semaphore for txer/rxer modifications - we cannot use a // spinlock as the critical region needs to switch processes - init_MUTEX (&dev->vcc_sf); + mutex_init(&dev->vcc_sf); // queue manipulation spinlocks; we want atomic reads and // writes to the queue descriptors (handles IRQ and SMP) // consider replacing "int pending" -> "atomic_t available" diff --git a/drivers/atm/ambassador.h b/drivers/atm/ambassador.h index ff2a303..df55fa8 100644 --- a/drivers/atm/ambassador.h +++ b/drivers/atm/ambassador.h @@ -638,7 +638,7 @@ struct amb_dev { amb_txq txq; amb_rxq rxq[NUM_RX_POOLS]; - struct semaphore vcc_sf; + struct mutex vcc_sf; amb_tx_info txer[NUM_VCS]; struct atm_vcc * rxer[NUM_VCS]; unsigned int tx_avail; |