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* IB/uverbs: Support for query SRQ from userspaceDotan Barak2006-03-204-0/+61
| | | | | | | | | | Add support to uverbs to handle querying userspace SRQs (shared receive queues), including adding an ABI for marshalling requests and responses. The kernel midlayer already has the underlying ib_query_srq() function. Signed-off-by: Dotan Barak <dotanb@mellanox.co.il> Signed-off-by: Roland Dreier <rolandd@cisco.com>
* IB/uverbs: Support for query QP from userspaceDotan Barak2006-03-204-0/+143
| | | | | | | | | Add support to uverbs to handle querying userspace QPs (queue pairs), including adding an ABI for marshalling requests and responses. The kernel midlayer already has the underlying ib_query_qp() function. Signed-off-by: Dotan Barak <dotanb@mellanox.co.il> Signed-off-by: Roland Dreier <rolandd@cisco.com>
* IB: Whitespace cleanupsRoland Dreier2006-03-204-11/+9
| | | | | | | Remove trailing whitespace and fix indentation that with spaces instead of tabs. Signed-off-by: Roland Dreier <rolandd@cisco.com>
* IB/mthca: Convert to use ib_modify_qp_is_ok()Roland Dreier2006-03-203-290/+76
| | | | | | | Use ib_modify_qp_is_ok() in mthca, and delete the big table of attributes for queue pair state transitions. Signed-off-by: Roland Dreier <rolandd@cisco.com>
* IB: Add ib_modify_qp_is_ok() library functionRoland Dreier2006-03-202-0/+270
| | | | | | | | | | | | | The in-kernel mthca driver contains a table of which attributes are valid for each queue pair state transition. It turns out that both other IB drivers -- ipath and ehca -- which are being prepared for merging have copied this table, errors and all. To forestall this code duplication, move this table and the code to check parameters against it into a midlayer library function, ib_modify_qp_is_ok(). Signed-off-by: Roland Dreier <rolandd@cisco.com>
* IB/mthca: Generate SQ drained events when requestedRoland Dreier2006-03-202-2/+15
| | | | | | | | Add low-level driver support to ib_mthca so that consumers can request a "send queue drained" event be generated when a transiton to the SQD state completes. Signed-off-by: Roland Dreier <rolandd@cisco.com>
* IB/mad: Simplify SMI by eliminating smi_check_local_dr_smp()Ralph Campbell2006-03-203-27/+6
| | | | | | | | | | | | | | | | The call to ib_get_agent_port() shouldn't be possible to fail when smi_check_local_dr_smp() is called from ib_mad_recv_done_handler(). When it is called from handle_outgoing_dr_smp(), the device and port_num come from mad_agent_priv so I assume the call to ib_get_agent_port() shouldn't fail either. In either case, smi_check_local_smp() only uses the mad_agent pointer to check that mad_agent->device->process_mad is not NULL. The device pointer would have to be the same as the one passed to smi_check_local_dr_smp() since that pointer is used later instead of the one checked in smi_check_local_smp(). Signed-off-by: Hal Rosenstock <halr@voltaire.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
* IB/mad: Remove redundant check from smi_check_local_dr_smp()Ralph Campbell2006-03-201-3/+0
| | | | | | | | | | smi_check_local_dr_smp() is called only from two places in core/mad.c It returns 0 or 1. In smi_check_local_dr_smp(), it checks for a directed route SMP but this function is only called when the SMP is a directed route so this is a NOP. Signed-off-by: Hal Rosenstock <halr@voltaire.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
* IB: Enable FMR pool user to set page sizeOr Gerlitz2006-03-204-9/+11
| | | | | | | | | | This patch allows the consumer to set the page size of "pages" mapped by the pool FMRs, which is a feature already existing in the base verbs API. On the cosmetic side it changes ib_fmr_attr.page_size field to be named page_shift. Signed-off-by: Or Gerlitz <ogerlitz@voltaire.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
* IB/mthca: Add modify_device method to set node descriptionRoland Dreier2006-03-202-1/+48
| | | | | | | | | Add a modify_device method to mthca, which implements setting the node description. This makes the writable "node_desc" sysfs attribute work for Mellanox HCAs. Signed-off-by: Michael S. Tsirkin <mst@mellanox.co.il> Signed-off-by: Roland Dreier <rolandd@cisco.com>
* IB: Allow userspace to set node descriptionRoland Dreier2006-03-202-2/+33
| | | | | | | | | | Expose a writable "node_desc" sysfs attribute for InfiniBand devices. This allows userspace to update the node description with information such as the node's hostname, so that IB network management software can tie its view to the real world. Signed-off-by: Michael S. Tsirkin <mst@mellanox.co.il> Signed-off-by: Roland Dreier <rolandd@cisco.com>
* IB/mthca: Whitespace cleanupsRoland Dreier2006-03-209-26/+26
| | | | | | | Remove trailing whitespace and fix indentation that with spaces instead of tabs. Signed-off-by: Roland Dreier <rolandd@cisco.com>
* IB/mthca: Add device-specific support for resizing CQsRoland Dreier2006-03-207-52/+308
| | | | | | | Add low-level driver support for resizing CQs (both kernel and userspace) to mthca. Signed-off-by: Roland Dreier <rolandd@cisco.com>
* IB: Add userspace support for resizing CQsRoland Dreier2006-03-206-8/+62
| | | | | | | | Add support to uverbs to handle resizing userspace CQs (completion queues), including adding an ABI for marshalling requests and responses. The kernel midlayer already has ib_resize_cq(). Signed-off-by: Roland Dreier <rolandd@cisco.com>
* IB/mthca: Get rid of might_sleep() annotationsRoland Dreier2006-03-203-13/+0
| | | | | | | | | | | | | | | | | | | | | The might_sleep() annotations in mthca are silly -- they all occur shortly before calls that will end up in core functions like kmalloc() that will print the same warning in an unsafe context anyway. In fact, beyond cluttering the source, we're actually bloating text with CONFIG_DEBUG_SPINLOCK_SLEEP and/or CONFIG_PREEMPT_VOLUNTARY set. With both options set, getting rid of the might_sleep()s saves a lot: add/remove: 0/0 grow/shrink: 0/7 up/down: 0/-171 (-171) function old new delta mthca_pd_alloc 132 109 -23 mthca_init_cq 969 946 -23 mthca_mr_alloc 592 568 -24 mthca_pd_free 67 42 -25 mthca_free_mr 219 194 -25 mthca_free_cq 570 545 -25 mthca_fmr_alloc 742 716 -26 Signed-off-by: Roland Dreier <rolandd@cisco.com>
* IB/mthca: Make functions that never fail return voidRoland Dreier2006-03-203-22/+15
| | | | | | | | | | | | | | | The function mthca_free_err_wqe() can never fail, so get rid of its return value. That means handle_error_cqe() doesn't have to check what mthca_free_err_wqe() returns, which means it can't fail either and doesn't have to return anything either. All this results in simpler source code and a slight object code improvement: add/remove: 0/0 grow/shrink: 0/2 up/down: 0/-10 (-10) function old new delta mthca_free_err_wqe 83 81 -2 mthca_poll_cq 1758 1750 -8 Signed-off-by: Roland Dreier <rolandd@cisco.com>
* Linux 2.6.16Linus Torvalds2006-03-191-1/+1
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* [PATCH] Remove obsolete CREDITS addressAndrea Arcangeli2006-03-191-1/+0
| | | | This address is going to be obsolete, so I should update it.
* Merge branch 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linusLinus Torvalds2006-03-1916-134/+217
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus: [MIPS] SB1: Check for -mno-sched-prolog if building corelis debug kernel. [MIPS] Sibyte: Fix race in sb1250_gettimeoffset(). [MIPS] Sibyte: Fix interrupt timer off by one bug. [MIPS] Sibyte: Fix M_SCD_TIMER_INIT and M_SCD_TIMER_CNT wrong field width. [MIPS] Protect more of timer_interrupt() by xtime_lock. [MIPS] Work around bad code generation for <asm/io.h>. [MIPS] Simple patch to power off DBAU1200 [MIPS] Fix DBAu1550 software power off. [MIPS] local_r4k_flush_cache_page fix [MIPS] SB1: Fix interrupt disable hazard. [MIPS] Get rid of the IP22-specific code in arclib. Update MAINTAINERS entry for MIPS.
| * [MIPS] SB1: Check for -mno-sched-prolog if building corelis debug kernel.Ralf Baechle2006-03-181-1/+2
| | | | | | | | Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| * [MIPS] Sibyte: Fix race in sb1250_gettimeoffset().Ralf Baechle2006-03-183-18/+64
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | From Dave Johnson <djohnson+linuxmips@sw.starentnetworks.com>: sb1250_gettimeoffset() simply reads the current cpu 0 timer remaining value, however once this counter reaches 0 and the interrupt is raised, it immediately resets and begins to count down again. If sb1250_gettimeoffset() is called on cpu 1 via do_gettimeofday() after the timer has reset but prior to cpu 0 processing the interrupt and taking write_seqlock() in timer_interrupt() it will return a full value (or close to it) causing time to jump backwards 1ms. Once cpu 0 handles the interrupt and timer_interrupt() gets far enough along it will jump forward 1ms. Fix this problem by implementing mips_hpt_*() on sb1250 using a spare timer unrelated to the existing periodic interrupt timers. It runs at 1Mhz with a full 23bit counter. This eliminated the custom do_gettimeoffset() for sb1250 and allowed use of the generic fixed_rate_gettimeoffset() using mips_hpt_*() and timerhi/timerlo. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| * [MIPS] Sibyte: Fix interrupt timer off by one bug.Ralf Baechle2006-03-181-2/+2
| | | | | | | | | | | | | | | | | | From Dave Johnson <djohnson+linuxmips@sw.starentnetworks.com>: The timers need to be loaded with 1 less than the desired interval not the interval itself. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| * [MIPS] Sibyte: Fix M_SCD_TIMER_INIT and M_SCD_TIMER_CNT wrong field width.Ralf Baechle2006-03-181-2/+3
| | | | | | | | | | | | | | | | From Dave Johnson <djohnson+linuxmips@sw.starentnetworks.com>: Field width should be 23 bits not 20 bits. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| * [MIPS] Protect more of timer_interrupt() by xtime_lock.Ralf Baechle2006-03-181-2/+4
| | | | | | | | | | | | | | | | | | | | | | From Dave Johnson <djohnson+linuxmips@sw.starentnetworks.com>: * do_timer() expects the arch-specific handler to take the lock as it modifies jiffies[_64] and xtime. * writing timerhi/lo in timer_interrupt() will mess up fixed_rate_gettimeoffset() which reads timerhi/lo. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| * [MIPS] Work around bad code generation for <asm/io.h>.Ralf Baechle2006-03-181-3/+15
| | | | | | | | | | | | | | | | | | If a call to set_io_port_base() was being followed by usage of mips_io_port_base in the same function gcc was possibly using the old value due to some clever abuse of const. Adding a barrier will keep the optimization and result in correct code with latest gcc. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| * [MIPS] Simple patch to power off DBAU1200Matej Kupljen2006-03-181-0/+3
| | | | | | | | | | Signed-off-by: Matej Kupljen <matej.kupljen@ultra.si> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| * [MIPS] Fix DBAu1550 software power off.Sergei Shtylylov2006-03-181-3/+4
| | | | | | | | | | Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| * [MIPS] local_r4k_flush_cache_page fixAtsushi Nemoto2006-03-185-6/+15
| | | | | | | | | | | | | | | | | | | | If dcache_size != icache_size or dcache_size != scache_size, or set-associative cache, icache/scache does not flushed properly. Make blast_?cache_page_indexed() masks its index value correctly. Also, use physical address for physically indexed pcache/scache. Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| * [MIPS] SB1: Fix interrupt disable hazard.Ralf Baechle2006-03-181-77/+103
| | | | | | | | | | | | | | The SB1 core has a three cycle interrupt disable hazard but we were wrongly treating it as fully interlocked. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| * [MIPS] Get rid of the IP22-specific code in arclib.Ralf Baechle2006-03-181-19/+0
| | | | | | | | | | | | This breaks the kernel build if sgiwd93 was configured as a module. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| * Update MAINTAINERS entry for MIPS.Ralf Baechle2006-03-181-1/+2
| | | | | | | | Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* | [TG3]: 40-bit DMA workaround part 2Michael Chan2006-03-193-9/+45
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The 40-bit DMA workaround recently implemented for 5714, 5715, and 5780 needs to be expanded because there may be other tg3 devices behind the EPB Express to PCIX bridge in the 5780 class device. For example, some 4-port card or mother board designs have 5704 behind the 5714. All devices behind the EPB require the 40-bit DMA workaround. Thanks to Chris Elmquist again for reporting the problem and testing the patch. Signed-off-by: Michael Chan <mchan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | [AX.25]: Fix potencial memory hole.Ralf Baechle DL5RB2006-03-192-2/+9
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | If the AX.25 dialect chosen by the sysadmin is set to DAMA master / 3 (or DAMA slave / 2, if CONFIG_AX25_DAMA_SLAVE=n) ax25_kick() will fall through the switch statement without calling ax25_send_iframe() or any other function that would eventually free skbn thus leaking the packet. Fix by restricting the sysctl inferface to allow only actually supported AX.25 dialects. The system administration mistake needed for this to happen is rather unlikely, so this is an uncritical hole. Coverity #651. Signed-off-by: Ralf Baechle DL5RB <ralf@linux-mips.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* | [PATCH] Kconfig: swap VIDEO_CX88_ALSA and VIDEO_CX88_DVBMichael Krufky2006-03-181-14/+14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | VIDEO_CX88_ALSA should not be between VIDEO_CX88_DVB and VIDEO_CX88_DVB_ALL_FRONTENDS When cx88-alsa was added to cx88/Kconfig, it was added in between VIDEO_CX88_DVB and VIDEO_CX88_DVB_ALL_FRONTENDS. This caused undesireable effects to the appearance of the menu options in menuconfig. This fix reorders cx88-alsa and cx88-dvb in Kconfig, to match saa7134, and restore the correct menuconfig appearance. Signed-off-by: Michael Krufky <mkrufky@linuxtv.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | [PATCH] Fixed em28xx based system lockupMarkus Rechberger2006-03-181-0/+3
| | | | | | | | | | | | | | | | | | Fixed em28xx based system lockup, device needs to be initialized before starting the isoc transfer otherwise the system will completly lock up. Signed-off-by: Markus Rechberger <mrechberger@gmail.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | [PATCH] disable unshare(CLONE_VM) for nowOleg Nesterov2006-03-181-3/+1
|/ | | | | | | | | | | | | sys_unshare() does mmput(new_mm). This is not enough if we have mm->core_waiters. This patch is a temporary fix for soon to be released 2.6.16. Signed-off-by: Oleg Nesterov <oleg@tv-sign.ru> [ Checked with Uli: "I'm not planning to use unshare(CLONE_VM). It's not needed for any functionality planned so far. What we (as in Red Hat) need unshare() for now is the filesystem side." ] Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [NET]: Fix race condition in sk_wait_event().Alexey Kuznetsov2006-03-171-1/+1
| | | | | | | | | | It is broken, the condition is checked out of socket lock. It is wonderful the bug survived for so long time. [ This fixes bugzilla #6233: race condition in tcp_sendmsg when connection became established ] Signed-off-by: David S. Miller <davem@davemloft.net>
* [PATCH] fix free swap cache latencyHugh Dickins2006-03-171-2/+3
| | | | | | | | | | | | | | | | | | | | | | | | Lee Revell reported 28ms latency when process with lots of swapped memory exits. 2.6.15 introduced a latency regression when unmapping: in accounting the zap_work latency breaker, pte_none counted 1, pte_present PAGE_SIZE, but a swap entry counted nothing at all. We think of pages present as the slow case, but Lee's trace shows that free_swap_and_cache's radix tree lookup can make a lot of work - and we could have been doing it many thousands of times without a latency break. Move the zap_work update up to account swap entries like pages present. This does account non-linear pte_file entries, and unmap_mapping_range skipping over swap entries, by the same amount even though they're quick: but neither of those cases deserves complicating the code (and they're treated no worse than they were in 2.6.14). Signed-off-by: Hugh Dickins <hugh@veritas.com> Acked-by: Nick Piggin <npiggin@suse.de> Acked-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] kbuild: fix buffer overflow in modpostSam Ravnborg2006-03-171-7/+2
| | | | | | | | | | | | | | | | | | | | Jiri Benc <jbenc@suse.cz> reported that modpost would stop with SIGABRT if used with long filepaths. The error looked like: > Building modules, stage 2. > MODPOST > *** glibc detected *** scripts/mod/modpost: realloc(): invalid next size: +0x0809f588 *** > [...] Fix this by allocating at least the required memory + SZ bytes each time. Before we sometimes ended up allocating too little memory resuting in the glibc detected bug above. Based on patch originally submitted by: Jiri Benc <jbenc@suse.cz> Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] nfsservctl(): remove user-triggerable printkPeter Staubach2006-03-171-3/+1
| | | | | | | | | | | | | | A user can use nfsservctl() to spam the logs. This can happen because the arguments to the nfsservctl() system call are versioned. This is a good thing. However, when a bad version is detected, the kernel prints a message and then returns an error. Signed-off-by: Peter Staubach <staubach@redhat.com> Cc: Trond Myklebust <trond.myklebust@fys.uio.no> Cc: Neil Brown <neilb@cse.unsw.edu.au> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] fix race in pagevec_strip?Christoph Lameter2006-03-171-1/+2
| | | | | | | | | | | | | We can call try_to_release_page() with PagePrivate off and a valid page->mapping This may cause all sorts of trouble for the filesystem *_releasepage() handlers. XFS bombs out in that case. Lock the page before checking for page private. Signed-off-by: Christoph Lameter <clameter@sgi.com> Cc: Nick Piggin <nickpiggin@yahoo.com.au> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] dm stripe: Fix boundsKevin Corry2006-03-171-1/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The dm-stripe target currently does not enforce that the size of a stripe device be a multiple of the chunk-size. Under certain conditions, this can lead to I/O requests going off the end of an underlying device. This test-case shows one example. echo "0 100 linear /dev/hdb1 0" | dmsetup create linear0 echo "0 100 linear /dev/hdb1 100" | dmsetup create linear1 echo "0 200 striped 2 32 /dev/mapper/linear0 0 /dev/mapper/linear1 0" | \ dmsetup create stripe0 dd if=/dev/zero of=/dev/mapper/stripe0 bs=1k This will produce the output: dd: writing '/dev/mapper/stripe0': Input/output error 97+0 records in 96+0 records out And in the kernel log will be: attempt to access beyond end of device dm-0: rw=0, want=104, limit=100 The patch will check that the table size is a multiple of the stripe chunk-size when the table is created, which will prevent the above striped device from being created. This should not affect tools like LVM or EVMS, since in all the cases I can think of, striped devices are always created with the sizes being a multiple of the chunk-size. The size of a stripe device must be a multiple of its chunk-size. (akpm: that typecast is quite gratuitous) Signed-off-by: Kevin Corry <kevcorry@us.ibm.com> Signed-off-by: Alasdair G Kergon <agk@redhat.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] x86: check for online cpus before bringing them upSrivatsa Vaddagiri2006-03-171-0/+10
| | | | | | | | | | | | | | | | Bryce reported a bug wherein offlining CPU0 (on x86 box) and then subsequently onlining it resulted in a lockup. On x86, CPU0 is never offlined. The subsequent attempt to online CPU0 doesn't take that into account. It actually tries to bootup the already booted CPU. Following patch fixes the problem (as acknowledged by Bryce). Please consider for inclusion in 2.6.16. Check if cpu is already online. Signed-off-by: Srivatsa Vaddagiri <vatsa@in.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] v9fs: fix overzealous dropping of dentry which breaks dcacheEric Van Hensbergen2006-03-171-1/+0
| | | | | | | | | | There is a d_drop in dir_release which caused problems as it invalidates dcache entries too soon. This was likely a part of the wierd cwd behavior folks were seeing. Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] posix-timers: fix requeue accounting when signal is ignoredRoman Zippel2006-03-171-0/+1
| | | | | | | | | | | When the posix-timer signal is ignored then the timer is rearmed by the callback function. The requeue pending accounting has to be fixed up else the state might be wrong. Signed-off-by: Roman Zippel <zippel@linux-m68k.org> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] time_interpolator: add __read_mostlyChristoph Lameter2006-03-171-2/+2
| | | | | | | | | | The pointer to the current time interpolator and the current list of time interpolators are typically only changed during bootup. Adding __read_mostly takes them away from possibly hot cachelines. Signed-off-by: Christoph Lameter <clameter@sgi.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] page migration: Fail with error if swap not setupChristoph Lameter2006-03-171-2/+12
| | | | | | | | | | Currently the migration of anonymous pages will silently fail if no swap is setup. This patch makes page migration functions check for available swap and fail with -ENODEV if no swap space is available. Signed-off-by: Christoph Lameter <clameter@sgi.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] unshare: Use rcu_assign_pointer when setting sighandEric W. Biederman2006-03-171-1/+1
| | | | | | | | | | | | | | The sighand pointer only needs the rcu_read_lock on the read side. So only depending on task_lock protection when setting this pointer is not enough. We also need a memory barrier to ensure the initialization is seen first. Use rcu_assign_pointer as it does this for us, and clearly documents that we are setting an rcu readable pointer. Signed-off-by: Eric W. Biederman <ebiederm@xmission.com> Acked-by: Paul E. McKenney <paulmck@us.ibm.com> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [netdrvr] fix array overflows in Chelsio driverScott Bardone2006-03-161-3/+3
| | | | | | | | | | | | | Adrian Bunk wrote: > The Coverity checker spotted the following two array overflows in > drivers/net/chelsio/sge.c (in both cases, the arrays contain 3 > elements): [snip] This is a bug. The array should contain 2 elements. Here is the fix. Signed-off-by: Scott Bardone <sbardone@chelsio.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
* [PATCH] e1000 endianness bugsDavid S. Miller2006-03-161-4/+4
| | | | | | | | | return -E_NO_BIG_ENDIAN_TESTING; [E1000]: Fix 4 missed endianness conversions on RX descriptor fields. Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Jeff Garzik <jeff@garzik.org>
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