- 10 2月, 2010 11 次提交
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由 Mike Sager 提交于
For the CREATE_SESSION attribute ca_maxresponsesize_cached, calculate the value based on the rpc reply header size plus the maximum nfs compound reply size. Signed-off-by: NMike Sager <sager@netapp.com> Signed-off-by: NTrond Myklebust <Trond.Myklebust@netapp.com>
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由 H Hartley Sweeten 提交于
xprtsock.c: make bc_{malloc/free} static The server backchannel buf_alloc and buf_free methods should be static since they are not used outside this file. Signed-off-by: NH Hartley Sweeten <hsweeten@visionengravers.com> Cc: J. Bruce Fields <bfields@fieldses.org> Cc: Neil Brown <neilb@suse.de> Cc: Trond Myklebust <Trond.Myklebust@netapp.com> Cc: David S. Miller <davem@davemloft.net> Signed-off-by: NTrond Myklebust <Trond.Myklebust@netapp.com>
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由 Chuck Lever 提交于
A zero scope ID means that it wasn't set, so we don't need to append it to presentation format addresses. Signed-off-by: NChuck Lever <chuck.lever@oracle.com> Acked-by: NJeff Layton <jlayton@redhat.com> Signed-off-by: NTrond Myklebust <Trond.Myklebust@netapp.com>
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由 Chuck Lever 提交于
RFC 3879 "formally deprecates" site-local IPv6 addresses. We interpret that to mean that the scope ID is ignored for all but link-local addresses. Signed-off-by: NChuck Lever <chuck.lever@oracle.com> Acked-by: NJeff Layton <jlayton@redhat.com> Signed-off-by: NTrond Myklebust <Trond.Myklebust@netapp.com>
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由 Jeff Layton 提交于
Add a wrapper around rpc_call_sync that handles -EKEYEXPIRED errors from the RPC layer as it would an -EJUKEBOX error if NFSv2 had such a thing. Also, add a handler for that error for async calls that makes it resubmit the RPC on -EKEYEXPIRED. Signed-off-by: NJeff Layton <jlayton@redhat.com> Signed-off-by: NTrond Myklebust <Trond.Myklebust@netapp.com>
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由 Jeff Layton 提交于
We're using -EKEYEXPIRED to indicate that a krb5 credcache contains an expired ticket and that we should have the NFS layer retry the RPC call instead of returning an error back to the caller. Handle this as we would an -EJUKEBOX error return. Signed-off-by: NJeff Layton <jlayton@redhat.com> Signed-off-by: NTrond Myklebust <Trond.Myklebust@netapp.com>
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由 Jeff Layton 提交于
If a KRB5 TGT ticket expires, we don't want to return an error immediatel. If someone has a long running job and just forgets to run "kinit" in time then this will make it fail. Instead, we want to treat this situation as we would NFS4ERR_DELAY and retry the upcall after delaying a bit with an exponential backoff. This patch just makes any place that would handle NFS4ERR_DELAY also handle -EKEYEXPIRED the same way. In the future, we may want to be more sophisticated however and handle hard vs. soft mounts differently, or specify some upper limit on how long we'll wait for a new TGT to be acquired. Signed-off-by: NJeff Layton <jlayton@redhat.com> Signed-off-by: NTrond Myklebust <Trond.Myklebust@netapp.com>
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由 Jeff Layton 提交于
The kernel currently ignores any error code sent by gssd and always considers it to be -EACCES. In order to better handle the situation of an expired KRB5 TGT, the kernel needs to be able to parse and deal with the errors that gssd sends. Aside from -EACCES the only error we care about is -EKEYEXPIRED, which we're using to indicate that the upper layers should retry the call a little later. To maintain backward compatibility with older gssd's, any error other than -EKEYEXPIRED is interpreted as -EACCES. Signed-off-by: NJeff Layton <jlayton@redhat.com> Signed-off-by: NTrond Myklebust <Trond.Myklebust@netapp.com>
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git://neil.brown.name/md由 Linus Torvalds 提交于
* 'for-linus' of git://neil.brown.name/md: md: fix some lockdep issues between md and sysfs. md: fix 'degraded' calculation when starting a reshape.
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由 NeilBrown 提交于
====== This fix is related to http://bugzilla.kernel.org/show_bug.cgi?id=15142 but does not address that exact issue. ====== sysfs does like attributes being removed while they are being accessed (i.e. read or written) and waits for the access to complete. As accessing some md attributes takes the same lock that is held while removing those attributes a deadlock can occur. This patch addresses 3 issues in md that could lead to this deadlock. Two relate to calling flush_scheduled_work while the lock is held. This is probably a bad idea in general and as we use schedule_work to delete various sysfs objects it is particularly bad. In one case flush_scheduled_work is called from md_alloc (called by md_probe) called from do_md_run which holds the lock. This call is only present to ensure that ->gendisk is set. However we can be sure that gendisk is always set (though possibly we couldn't when that code was originally written. This is because do_md_run is called in three different contexts: 1/ from md_ioctl. This requires that md_open has succeeded, and it fails if ->gendisk is not set. 2/ from writing a sysfs attribute. This can only happen if the mddev has been registered in sysfs which happens in md_alloc after ->gendisk has been set. 3/ from autorun_array which is only called by autorun_devices, which checks for ->gendisk to be set before calling autorun_array. So the call to md_probe in do_md_run can be removed, and the check on ->gendisk can also go. In the other case flush_scheduled_work is being called in do_md_stop, purportedly to wait for all md_delayed_delete calls (which delete the component rdevs) to complete. However there really isn't any need to wait for them - they have already been disconnected in all important ways. The third issue is that raid5->stop() removes some attribute names while the lock is held. There is already some infrastructure in place to delay attribute removal until after the lock is released (using schedule_work). So extend that infrastructure to remove the raid5_attrs_group. This does not address all lockdep issues related to the sysfs "s_active" lock. The rest can be address by splitting that lockdep context between symlinks and non-symlinks which hopefully will happen. Signed-off-by: NNeilBrown <neilb@suse.de>
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git://git.kernel.org/pub/scm/linux/kernel/git/ericvh/v9fs由 Linus Torvalds 提交于
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ericvh/v9fs: 9p: fix p9_client_destroy unconditional calling v9fs_put_trans 9p: fix memory leak in v9fs_parse_options() 9p: Fix the kernel crash on a failed mount 9p: fix option parsing 9p: Include fsync support for 9p client net/9p: fix statsize inside twstat net/9p: fail when user specifies a transport which we can't find net/9p: fix virtio transport to correctly update status on connect
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- 09 2月, 2010 19 次提交
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由 NeilBrown 提交于
This code was written long ago when it was not possible to reshape a degraded array. Now it is so the current level of degraded-ness needs to be taken in to account. Also newly addded devices should only reduce degradedness if they are deemed to be in-sync. In particular, if you convert a RAID5 to a RAID6, and increase the number of devices at the same time, then the 5->6 conversion will make the array degraded so the current code will produce a wrong value for 'degraded' - "-1" to be precise. If the reshape runs to completion end_reshape will calculate a correct new value for 'degraded', but if a device fails during the reshape an incorrect decision might be made based on the incorrect value of "degraded". This patch is suitable for 2.6.32-stable and if they are still open, 2.6.31-stable and 2.6.30-stable as well. Cc: stable@kernel.org Reported-by: NMichael Evans <mjevans1983@gmail.com> Signed-off-by: NNeilBrown <neilb@suse.de>
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git://linux-nfs.org/~bfields/linux由 Linus Torvalds 提交于
* 'for-2.6.33' of git://linux-nfs.org/~bfields/linux: Revert "nfsd4: fix error return when pseudoroot missing"
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由 Eric Van Hensbergen 提交于
restructure client create code to handle error cases better and only cleanup initialized portions of the stack. Signed-off-by: NVenkateswararao Jujjuri <jvrao@us.ibm.com> Signed-off-by: NEric Van Hensbergen <ericvh@gmail.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/jlbec/ocfs2由 Linus Torvalds 提交于
* 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jlbec/ocfs2: ocfs2/cluster: Make o2net connect messages KERN_NOTICE ocfs2/dlm: Fix printing of lockname ocfs2: Fix contiguousness check in ocfs2_try_to_merge_extent_map() ocfs2/dlm: Remove BUG_ON in dlm recovery when freeing locks of a dead node ocfs2: Plugs race between the dc thread and an unlock ast message ocfs2: Remove overzealous BUG_ON during blocked lock processing ocfs2: Do not downconvert if the lock level is already compatible ocfs2: Prevent a livelock in dlmglue ocfs2: Fix setting of OCFS2_LOCK_BLOCKED during bast ocfs2: Use compat_ptr in reflink_arguments. ocfs2/dlm: Handle EAGAIN for compatibility - v2 ocfs2: Add parenthesis to wrap the check for O_DIRECT. ocfs2: Only bug out when page size is larger than cluster size. ocfs2: Fix memory overflow in cow_by_page. ocfs2/dlm: Print more messages during lock migration ocfs2/dlm: Ignore LVBs of locks in the Blocked list ocfs2/trivial: Remove trailing whitespaces ocfs2: fix a misleading variable name ocfs2: Sync max_inline_data_with_xattr from tools. ocfs2: Fix refcnt leak on ocfs2_fast_follow_link() error path
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由 Eric Van Hensbergen 提交于
If match_strdup() fail this function exits without freeing the options string. Signed-off-by: NVenkateswararao Jujjuri <jvrao@us.ibm.com> Sigend-off-by: NEric Van Hensbergen <ericvh@gmail.com>
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由 Aneesh Kumar K.V 提交于
The patch fix the crash repoted below [ 15.149907] BUG: unable to handle kernel NULL pointer dereference at 00000001 [ 15.150806] IP: [<c140b886>] p9_virtio_close+0x18/0x24 ..... .... [ 15.150806] Call Trace: [ 15.150806] [<c1408e78>] ? p9_client_destroy+0x3f/0x163 [ 15.150806] [<c1409342>] ? p9_client_create+0x25f/0x270 [ 15.150806] [<c1063b72>] ? trace_hardirqs_on+0xb/0xd [ 15.150806] [<c11ed4e8>] ? match_token+0x64/0x164 [ 15.150806] [<c1175e8d>] ? v9fs_session_init+0x2f1/0x3c8 [ 15.150806] [<c109cfc9>] ? kmem_cache_alloc+0x98/0xb8 [ 15.150806] [<c1063b72>] ? trace_hardirqs_on+0xb/0xd [ 15.150806] [<c1173dd1>] ? v9fs_get_sb+0x47/0x1e8 [ 15.150806] [<c1173dea>] ? v9fs_get_sb+0x60/0x1e8 [ 15.150806] [<c10a2e77>] ? vfs_kern_mount+0x81/0x11a [ 15.150806] [<c10a2f55>] ? do_kern_mount+0x33/0xbe [ 15.150806] [<c10b40b9>] ? do_mount+0x654/0x6b3 [ 15.150806] [<c1038949>] ? do_page_fault+0x0/0x284 [ 15.150806] [<c10b28ec>] ? copy_mount_options+0x73/0xd2 [ 15.150806] [<c10b4179>] ? sys_mount+0x61/0x94 [ 15.150806] [<c14284e9>] ? syscall_call+0x7/0xb .... [ 15.203562] ---[ end trace 1dd159357709eb4b ]--- [ Signed-off-by: NAneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> Signed-off-by: NEric Van Hensbergen <ericvh@gmail.com>
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由 Eric Van Hensbergen 提交于
Options pointer is being moved before calling kfree() which seems to cause problems. This uses a separate pointer to track and free original allocation. Signed-off-by: NVenkateswararao Jujjuri <jvrao@us.ibm.com> Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>w
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由 M. Mohan Kumar 提交于
Implement the fsync in the client side by marking stat field values to 'don't touch' so that server may interpret it as a request to guarantee that the contents of the associated file are committed to stable storage before the Rwstat message is returned. Without this patch, calling fsync on a 9p file results in "Invalid argument" error. Please check the attached C program. Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> Signed-off-by: M. Mohan Kumar <mohan@in.ibm.com> Acked-by: NVenkateswararao Jujjuri (JV) <jvrao@linux.vnet.ibm.com> Signed-off-by: NEric Van Hensbergen <ericvh@gmail.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/davej/cpufreq由 Linus Torvalds 提交于
* 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/davej/cpufreq: [CPUFREQ] Fix ondemand to not request targets outside policy limits [CPUFREQ] Fix use after free of struct powernow_k8_data [CPUFREQ] fix default value for ondemand governor
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由 Sunil Mushran 提交于
Connect and disconnect messages are more than informational as they are required during root cause analysis for failures. This patch changes them from KERN_INFO to KERN_NOTICE. Signed-off-by: NSunil Mushran <sunil.mushran@oracle.com> Acked-by: NMark Faseh <mfasheh@suse.com> Signed-off-by: NJoel Becker <joel.becker@oracle.com>
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由 Sunil Mushran 提交于
The debug call printing the name of the lock resource was chopping off the last character. This patch fixes the problem. Signed-off-by: NSunil Mushran <sunil.mushran@oracle.com> Acked-by: NMark Fasheh <mfasheh@suse.com> Signed-off-by: NJoel Becker <joel.becker@oracle.com>
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由 J. Bruce Fields 提交于
Commit f39bde24 fixed the error return from PUTROOTFH in the case where there is no pseudofilesystem. This is really a case we shouldn't hit on a correctly configured server: in the absence of a root filehandle, there's no point accepting version 4 NFS rpc calls at all. But the shared responsibility between kernel and userspace here means the kernel on its own can't eliminate the possiblity of this happening. And we have indeed gotten this wrong in distro's, so new client-side mount code that attempts to negotiate v4 by default first has to work around this case. Therefore when commit f39bde24 arrived at roughly the same time as the new v4-default mount code, which explicitly checked only for the previous error, the result was previously fine mounts suddenly failing. We'll fix both sides for now: revert the error change, and make the client-side mount workaround more robust. Signed-off-by: NJ. Bruce Fields <bfields@citi.umich.edu>
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由 Eric Van Hensbergen 提交于
stat structures contain a size prefix. In our twstat messages we were including the size of the size prefix in the prefix, which is not what the protocol wants, and Inferno servers would complain. Signed-off-by: NEric Van Hensbergen <ericvh@gmail.com>
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由 Eric Van Hensbergen 提交于
If the user specifies a transport and we can't find it, we failed back to the default trainsport silently. This patch will make the code complain more loudly and return an error code. Signed-off-by: NEric Van Hensbergen <ericvh@gmail.com>
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由 Eric Van Hensbergen 提交于
The 9p virtio transport was not updating its connection status correctly preventing it from being able to mount the server. Signed-off-by: NEric Van Hensbergen <ericvh@gmail.com>
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git://linuxtv.org/fixes由 Linus Torvalds 提交于
* 'v4l_for_linus' of git://linuxtv.org/fixes: V4L/DVB: dvb-core: fix initialization of feeds list in demux filter V4L/DVB: dvb_demux: Don't use vmalloc at dvb_dmx_swfilter_packet V4L/DVB: Fix the risk of an oops at dvb_dmx_release
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git://git.monstr.eu/linux-2.6-microblaze由 Linus Torvalds 提交于
* 'for-linus' of git://git.monstr.eu/linux-2.6-microblaze: microblaze: Invalidate dcache before enabling it
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git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc由 Linus Torvalds 提交于
* 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc: powerpc/pseries: Fix kexec regression caused by CPPR tracking
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git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6由 Linus Torvalds 提交于
* 'sh/for-2.6.33' of git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6: sh: Remove superfluous setup_frame_reg call sh: Don't continue unwinding across interrupts sh: Setup frame pointer in handle_exception path sh: Correct the offset of the return address in ret_from_exception usb: r8a66597-hcd: Fix up spinlock recursion in root hub polling. usb: r8a66597-hcd: Flush the D-cache for the pipe-in transfer buffers.
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- 08 2月, 2010 10 次提交
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由 Francesco Lavra 提交于
A DVB demultiplexer device can be used to set up either a PES filter or a section filter. In the former case, the ts field of the feed union of struct dmxdev_filter is used, in the latter case the sec field of the same union is used. The ts field is a struct list_head, and is currently initialized in the open() method of the demux device. When for a given demuxer a section filter is set up, the sec field is played with, thus if a PES filter needs to be set up after that the ts field will be corrupted, causing a kernel oops. This fix moves the list head initialization to dvb_dmxdev_pes_filter_set(), so that the ts field is properly initialized every time a PES filter is set up. Signed-off-by: NFrancesco Lavra <francescolavra@interfree.it> Cc: stable <stable@kernel.org> Reviewed-by: NAndy Walls <awalls@radix.net> Tested-by: Nhermann pitton <hermann-pitton@arcor.de> Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>
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由 Mauro Carvalho Chehab 提交于
As dvb_dmx_swfilter_packet() is protected by a spinlock, it shouldn't sleep. However, vmalloc() may call sleep. So, move the initialization of dvb_demux::cnt_storage field to a better place. Reviewed-by: NAndy Walls <awalls@radix.net> Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>
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由 Mauro Carvalho Chehab 提交于
dvb_dmx_init tries to allocate virtual memory for 2 pointers: filter and feed. If the second vmalloc fails, filter is freed, but the pointer keeps pointing to the old place. Later, when dvb_dmx_release() is called, it will try to free an already freed memory, causing an OOPS. Reviewed-by: NAndy Walls <awalls@radix.net> Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>
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由 Michal Simek 提交于
We found that on write-trough kernel is necessary to do that invalidation. One WB is possible to use invalidation too. Signed-off-by: NMichal Simek <monstr@monstr.eu>
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由 Mark Nelson 提交于
The code to track the CPPR values added by commit 49bd3647 ("powerpc/pseries: Track previous CPPR values to correctly EOI interrupts") broke kexec on pseries because the kexec code in xics.c calls xics_set_cpu_priority() before the IPI has been EOI'ed. This wasn't a problem previously but it now triggers a BUG_ON in xics_set_cpu_priority() because os_cppr->index isn't 0. Fix this problem by setting the index on the CPPR stack to 0 before calling xics_set_cpu_priority() in xics_teardown_cpu(). Also make it clear that we only want to set the priority when there's just one CPPR value in the stack, and enforce it by updating the value of os_cppr->stack[0] rather than os_cppr->stack[os_cppr->index]. While we're at it change the BUG_ON to a WARN_ON. Reported-by: NAnton Blanchard <anton@samba.org> Signed-off-by: NMark Nelson <markn@au1.ibm.com> Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>
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由 Matt Fleming 提交于
There's no need to setup the frame pointer again in call_handle_tlbmiss. The frame pointer will already have been setup in handle_interrupt. Signed-off-by: NMatt Fleming <matt@console-pimps.org> Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
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由 Matt Fleming 提交于
Unfortunately, due to poor DWARF info in current toolchains, unwinding through interrutps cannot be done reliably. The problem is that the DWARF info for function epilogues is wrong. Take this standard epilogue sequence, 80003cc4: e3 6f mov r14,r15 80003cc6: 26 4f lds.l @r15+,pr 80003cc8: f6 6e mov.l @r15+,r14 <---- interrupt here 80003cca: f6 6b mov.l @r15+,r11 80003ccc: f6 6a mov.l @r15+,r10 80003cce: f6 69 mov.l @r15+,r9 80003cd0: 0b 00 rts If we take an interrupt at the highlighted point, the DWARF info will bogusly claim that the return address can be found at some offset from the frame pointer, even though the frame pointer was just restored. The worst part is if the unwinder finds a text address at the bogus stack address - unwinding will continue, for a bit, until it finally comes across an unexpected address on the stack and blows up. The only solution is to stop unwinding once we've calculated the function that was executing when the interrupt occurred. This PC can be easily calculated from pt_regs->pc. Signed-off-by: NMatt Fleming <matt@console-pimps.org> Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
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由 Matt Fleming 提交于
In order to allow the DWARF unwinder to unwind through exceptions we need to setup the frame pointer register (r14). Signed-off-by: NMatt Fleming <matt@console-pimps.org> Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
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由 Matt Fleming 提交于
The address that ret_from_exception and ret_from_irq will return to is found in the stack slot for SPC, not PR. This error was causing the DWARF unwinder to pick up the wrong return address on the stack and then unwind using the unwind tables for the wrong function. While I'm here I might as well add CFI annotations for the other registers since they could be useful when unwinding. Signed-off-by: NMatt Fleming <matt@console-pimps.org> Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6由 Linus Torvalds 提交于
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6: Take ima_file_free() to proper place. ima: rename PATH_CHECK to FILE_CHECK ima: rename ima_path_check to ima_file_check ima: initialize ima before inodes can be allocated fix ima breakage Take ima_path_check() in nfsd past dentry_open() in nfsd_open() freeze_bdev: don't deactivate successfully frozen MS_RDONLY sb befs: fix leak
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