- 05 Jun, 2008 28 commits
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Martin Peschke authored
This change better spreads trace levels of recovery related events. There was an overlap of traces for some recovery triggers and the processing of recovery actions. Signed-off-by:
Martin Peschke <mp3@de.ibm.com> Signed-off-by:
Christof Schmitt <christof.schmitt@de.ibm.com> Signed-off-by:
James Bottomley <James.Bottomley@HansenPartnership.com>
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Martin Peschke authored
Store the index of the buffer in the inbound queue used to report request completion in trace record for request coompletion. This piece of information allows to better compare qdio and zfcp traces. Signed-off-by:
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Martin Peschke authored
sbal_last is more appropriate, because it matches sbal_first. Signed-off-by:
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Martin Peschke authored
sbal_last is confusing, as it is not the last one actually used, but just a limit. sbal_limit is a better name. Signed-off-by:
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Martin Peschke authored
This field is not needed, because it designates an index with a fix offset from sbal_first. It's name is confusing anyway. Signed-off-by:
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Christof Schmitt authored
Remove some sparse warnings by telling sparse that zfcp_req_create acquires the lock for the request queue. Signed-off-by:
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Heiko Carstens authored
If allocation of a status buffer failed the function incorrectly returned 0 instead of -ENOMEM. Signed-off-by:
Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by:
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Christof Schmitt authored
When allocating memory for GID_PN nameserver requests, the allocation function stores the pointer to the mempool, but then overwrites the pointer via memset. Later, the wrong function to free the memory will be called, since this is based on the stored pointer. Fix this by first initializing the struct and then storing the pointer. Signed-off-by:
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Swen Schillig authored
Processing of an unsolicted status request can lead to a locking race of the request_queue's queue_lock during the recreation of the used up status read request while still in interrupt context of the response handler. Detaching the 'refill' of the long running status read requests from the handler to a scheduled work is solving this issue. In addition, each refill-run is trying to re-establish the full amount of status read requests, which might have failed in earlier runs. Signed-off-by:
Swen Schillig <swen@vnet.ibm.com> Signed-off-by:
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Adrian Bunk authored
This patch makes the needlessly global struct mpt_proc_root_dir static. Signed-off-by:
Adrian Bunk <bunk@kernel.org> Acked-by:
"Prakash, Sathya" <Sathya.Prakash@lsi.com> Signed-off-by:
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James Bottomley authored
USB sometimes doesn't return an error but instead returns a residue value indicating part (or all) of the command wasn't completed. So if the driver _done() error processing indicates the command was fully processed, subtract off the residue so that this USB error gets propagated. Cc: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: -
Alan Stern authored
power.power_state is scheduled for removal. This patch (as1055) removes all uses of that field from the SCSI mesh driver. Signed-off-by:
Alan Stern <stern@rowland.harvard.edu> Acked-by:
Paul Mackerras <paulus@au.ibm.com> Signed-off-by:
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Harvey Harrison authored
drivers/scsi/aacraid/linit.c:865:9: warning: symbol 'aac_show_serial_number' was not declared. Should it be static? Signed-off-by:
Harvey Harrison <harvey.harrison@gmail.com> Acked-by:
Mark Salyzyn <Mark_Salyzyn@adaptec.com> Signed-off-by:
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Mark Salyzyn authored
Update the documented list of products supported by the aacraid driver. Signed-off-by:
Mark Salyzyn <aacraid@adaptec.com> Signed-off-by:
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Christof Schmitt authored
The latency information is provided on a SCSI device level (LUN) which can be found at the following location /sys/class/scsi_device/<H:C:T:L>/device/cmd_latency /sys/class/scsi_device/<H:C:T:L>/device/read_latency /sys/class/scsi_device/<H:C:T:L>/device/write_latency Each sysfs attribute provides the available data: min, max and sum for fabric and channel latency and the number of requests processed. An overrun of the variables is neither detected nor treated. The file has to be read twice to make a meaningful statement, because only the differences of the values between the two reads can be used. A reset of the values can be achieved by writing to the attribute. Signed-off-by:
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Christof Schmitt authored
Add the infrastructure to retrieve the fabric and channel latencies from FSF commands for each SCSI command that has been processed. For each unit, the sum, min, max and number of requests is tracked. Signed-off-by:
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Chandra Seetharaman authored
This patch just removes infrastructure that provided support for hardware handlers in the dm layer as it is not needed anymore. Signed-off-by:
Chandra Seetharaman <sekharan@us.ibm.com> Acked-by:
Alasdair G Kergon <agk@redhat.com> Signed-off-by:
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Chandra Seetharaman authored
This patch removes the 3 hardware handlers that currently exist under dm as the functionality is moved to SCSI layer in the earlier patches. [jejb: removed more makefile hunks and rejection fixes] Signed-off-by:
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Chandra Seetharaman authored
This patch just removes the dm layer's path initialization completion routine. This is separated from the other patch(scsi_dh: Use SCSI device handler in dm-multipath) Just to make that patch more readable. Signed-off-by:
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Chandra Seetharaman authored
Before this patch set (SCSI hardware handlers), initialization of a path was done asynchronously. Doing that requires a workqueue in each device/hardware handler module and leads to unneccessary complication in the device handler code, making it difficult to read the code and follow the state diagram. Moving that workqueue to this level makes the device handler code simpler. Hence, the workqueue is moved to dm level. A new workqueue is added instead of adding it to the existing workqueue (kmpathd) for the following reasons: 1. Device activation has to happen faster, stacking them along with the other workqueue might lead to unnecessary delay in the activation of the path. 2. The effect could be felt the other way too. i.e the current events that are handled by the existing workqueue might get a delayed response. Signed-off-by:
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Chandra Seetharaman authored
This patch converts dm-mpath to use scsi device handlers instead of dm's hardware handlers. This patch does not add any new functionality. Old behaviors remain and userspace tools work as is except that arguments supplied with hardware handler are ignored. One behavioral exception is: Activation of a path is synchronous in this patch, opposed to the older behavior of being asynchronous (changed in patch 07: scsi_dh: Add a single threaded workqueue for initializing a path) Note: There is no need to get a reference for the device handler module (as it was done in the dm hardware handler case) here as the reference is held when the device was first found. Instead we check and make sure that support for the specified device is present at table load time. Signed-off-by:
Mike Christie <michaelc@cs.wisc.edu> Acked-by:
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Chandra Seetharaman authored
This adds support for EMC Clariions. This patch has the features that currently exists in mainline and advanced features from Ed's patches. Signed-off-by:
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Mike Christie authored
This patch provides the device handler to support the older hp boxes which cannot be upgraded. Signed-off-by:
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Chandra Seetharaman authored
This patch provides the device handler to support the LSI RDAC SCSI based storage devices. Signed-off-by:
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Chandra Seetharaman authored
Some of the storage devices (that can be accessed through multiple paths), do need some special handling for 1. Activating the passive path of the storage access. 2. Decode and handle the special sense codes returned by the devices. 3. Handle the I/Os being sent to the passive path, especially during the device probe time. when accessed through multiple paths. As of today this special device handling is done at the dm-multipath layer using dm-handlers. That works well for (1); for (2) to be handled at dm layer, scsi sense information need to be exported from SCSI to dm-layer, which is not very attractive; (3) cannot be done at all at the dm layer. Device handler has been moved to SCSI mainly to handle (2) and (3) properly. Signed-off-by:Mike Anderson <andmike@linux.vnet.ibm.com> Signed-off-by:
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Linus Torvalds authored
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git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6Linus Torvalds authored
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (56 commits) l2tp: Fix possible oops if transmitting or receiving when tunnel goes down tcp: Fix for race due to temporary drop of the socket lock in skb_splice_bits. tcp: Increment OUTRSTS in tcp_send_active_reset() raw: Raw socket leak. lt2p: Fix possible WARN_ON from socket code when UDP socket is closed USB ID for Philips CPWUA054/00 Wireless USB Adapter 11g ssb: Fix context assertion in ssb_pcicore_dev_irqvecs_enable libertas: fix command size for CMD_802_11_SUBSCRIBE_EVENT ipw2200: expire and use oldest BSS on adhoc create airo warning fix b43legacy: Fix controller restart crash sctp: Fix ECN markings for IPv6 sctp: Flush the queue only once during fast retransmit. sctp: Start T3-RTX timer when fast retransmitting lowest TSN sctp: Correctly implement Fast Recovery cwnd manipulations. sctp: Move sctp_v4_dst_saddr out of loop sctp: retran_path update bug fix tcp: fix skb vs fack_count out-of-sync condition sunhme: Cleanup use of deprecated calls to save_and_cli and restore_flags. xfrm: xfrm_algo: correct usage of RIPEMD-160 ...
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git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6Linus Torvalds authored
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6: sparc: switch /proc/led to seq_file sparc64: IO accessors fix
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- 04 Jun, 2008 12 commits
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James Chapman authored
Some problems have been experienced in the field which cause an oops in the pppol2tp driver if L2TP tunnels fail while passing data. The pppol2tp driver uses private data that is referenced via the sk->sk_user_data of its UDP and PPPoL2TP sockets. This patch makes sure that the driver uses sock_hold() when it holds a reference to the sk pointer. This affects its sendmsg(), recvmsg(), getname(), [gs]etsockopt() and ioctl() handlers. Tested by ISP where problem was seen. System has been up 10 days with no oops since running this patch. Without the patch, an oops would occur every 1-2 days. Signed-off-by: James Chapman <jchapman@katalix.com> Signed-off-by:David S. Miller <davem@davemloft.net>
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Octavian Purdila authored
skb_splice_bits temporary drops the socket lock while iterating over the socket queue in order to break a reverse locking condition which happens with sendfile. This, however, opens a window of opportunity for tcp_collapse() to aggregate skbs and thus potentially free the current skb used in skb_splice_bits and tcp_read_sock. This patch fixes the problem by (re-)getting the same "logical skb" after the lock has been temporary dropped. Based on idea and initial patch from Evgeniy Polyakov. Signed-off-by:
Octavian Purdila <opurdila@ixiacom.com> Acked-by:
Evgeniy Polyakov <johnpol@2ka.mipt.ru> Signed-off-by:
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Sridhar Samudrala authored
TCP "resets sent" counter is not incremented when a TCP Reset is sent via tcp_send_active_reset(). Signed-off-by:
Sridhar Samudrala <sri@us.ibm.com> Signed-off-by:
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Denis V. Lunev authored
The program below just leaks the raw kernel socket int main() { int fd = socket(PF_INET, SOCK_RAW, IPPROTO_UDP); struct sockaddr_in addr; memset(&addr, 0, sizeof(addr)); inet_aton("127.0.0.1", &addr.sin_addr); addr.sin_family = AF_INET; addr.sin_port = htons(2048); sendto(fd, "a", 1, MSG_MORE, &addr, sizeof(addr)); return 0; } Corked packet is allocated via sock_wmalloc which holds the owner socket, so one should uncork it and flush all pending data on close. Do this in the same way as in UDP. Signed-off-by:Denis V. Lunev <den@openvz.org> Acked-by:
Alexey Kuznetsov <kuznet@ms2.inr.ac.ru> Signed-off-by:
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James Chapman authored
If an L2TP daemon closes a tunnel socket while packets are queued in the tunnel's reorder queue, a kernel warning is logged because the socket is closed while skbs are still referencing it. The fix is to purge the queue in the socket's release handler. WARNING: at include/net/sock.h:351 udp_lib_unhash+0x41/0x68() Pid: 12998, comm: openl2tpd Not tainted 2.6.25 #8 [<c0423c58>] warn_on_slowpath+0x41/0x51 [<c05d33a7>] udp_lib_unhash+0x41/0x68 [<c059424d>] sk_common_release+0x23/0x90 [<c05d16be>] udp_lib_close+0x8/0xa [<c05d8684>] inet_release+0x42/0x48 [<c0592599>] sock_release+0x14/0x60 [<c059299f>] sock_close+0x29/0x30 [<c046ef52>] __fput+0xad/0x15b [<c046f1d9>] fput+0x17/0x19 [<c046c8c4>] filp_close+0x50/0x5a [<c046da06>] sys_close+0x69/0x9f [<c04048ce>] syscall_call+0x7/0xb Signed-off-by:
James Chapman <jchapman@katalix.com> Signed-off-by:
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David S. Miller authored
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Felix Homann authored
Enable the Philips CPWUA054/00 in p54usb. Cc: Jeff Garzik <jeff@garzik.org> Signed-off-by:
Andrew Morton <akpm@linux-foundation.org> Signed-off-by:
John W. Linville <linville@tuxdriver.com>
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Michael Buesch authored
This fixes a context assertion in ssb that makes b44 print out warnings on resume. This fixes the following kernel oops: http://www.kerneloops.org/oops.php?number=12732 http://www.kerneloops.org/oops.php?number=11410Signed-off-by:
Michael Buesch <mb@bu3sch.de> Signed-off-by:
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Holger Schurig authored
The size was two small by two bytes. Signed-off-by: Holger Schurig Signed-off-by: -
Dan Williams authored
If there are no networks on the free list, expire the oldest one when creating a new adhoc network. Because ipw2200 and the ieee80211 stack don't actually cull old networks and place them back on the free list unless they are needed for new probe responses, over time the free list would become empty and creating an adhoc network would fail due to the ! list_empty(...) check. Signed-off-by:
Dan Williams <dcbw@redhat.com> Signed-off-by:
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Andrew Morton authored
WARNING: space prohibited between function name and open parenthesis '(' #22: FILE: drivers/net/wireless/airo.c:2907: + while ((IN4500 (ai, COMMAND) & COMMAND_BUSY) && (delay < 10000)) { total: 0 errors, 1 warnings, 8 lines checked ./patches/wireless-airo-waitbusy-wont-delay.patch has style problems, please review. If any of these errors are false positives report them to the maintainer, see CHECKPATCH in MAINTAINERS. Please run checkpatch prior to sending patches Cc: Dan Williams <dcbw@redhat.com> Cc: Roel Kluin <roel.kluin@gmail.com> Signed-off-by: -
Michael Buesch authored
This fixes a kernel crash on rmmod, in the case where the controller was restarted before doing the rmmod. Signed-off-by:
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