| Commit message (Collapse) | Author | Age | Files | Lines |
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Some devices can handle remain on channel requests differently
based on the request type/priority. Add support to
differentiate between different ROC types, i.e., indicate that
the ROC is required for sending managment frames.
Signed-off-by: Ilan Peer <ilan.peer@intel.com>
Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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cfg80211_mlme_assoc() has grown far too many arguments,
make the caller build almost all of the driver struct
and pass that to the function instead.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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Support the cfg80211 API to override VHT capabilities
on association.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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For testing it's sometimes useful to be able to
override certain VHT capability advertisement,
add the ability to do that in cfg80211.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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This is the sort of thing gcc's LTO could do, but since
we don't have that yet we can also do it manually. The
advantage is reduced code, both source and binary, e.g.
on x86-64
text data bss dec hex filename
442825 56230 776 499831 7a077 cfg80211.ko (before)
441585 56230 776 498591 79b9f cfg80211.ko (after)
a reduction of ~1k.
But in order to not complicate the code move only those
functions that are simple wrappers, not those that have
functionality of their own.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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Add back the channel width and extended capability data
to wiphy information if split information is supported.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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Move the sequence number arithmetic code from mac80211 to
ieee80211.h so others can use it. Also rename the functions
from _seq to _sn, they operate on the sequence number, not
the sequence_control field.
Also move macros to convert the sequence control to/from
the sequence number value from various drivers.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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Add back the previously removed TCP WoWLAN information,
but only if userspace is prepared to deal with large
wiphy capability data dumps.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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If userspace is updated to deal with large split wiphy
information dumps, add back the radar information that
could otherwise push the data over the limit of the
netlink dump messages.
Cc: Simon Wunderlich <simon.wunderlich@s2003.tu-chemnitz.de>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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The per-wiphy information is getting large, to the point
where with more than the typical number of channels it's
too large and overflows, and userspace can't get any of
the information at all.
To address this (in a way that doesn't require making all
messages bigger) allow userspace to specify that it can
deal with wiphy information split across multiple parts
of the dump, and if it can split up the data. This also
splits up each channel separately so an arbitrary number
of channels can be supported.
Additionally, since GET_WIPHY has the same problem, add
support for filtering the wiphy dump and get information
for a single wiphy only, this allows userspace apps to
use dump in this case to retrieve all data from a single
device.
As userspace needs to know if all this this is supported,
add a global nl80211 feature set and include a bit for
this behaviour in it.
Cc: Dennis H Jensen <dennis.h.jensen@siemens.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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The comment says something about __skb_push(), but that
isn't even called in the code any more. Looking at the
git history, that comment never even made sense when it
was still called, so just replace that part to note it
still works even when align isn't 0 or 2.
Reported-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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'rfkill_regulator_ops' is used only in this file. Hence make it static.
Silences the following warning:
net/rfkill/rfkill-regulator.c:54:19: warning:
symbol 'rfkill_regulator_ops' was not declared. Should it be static?
Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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The station change API isn't being checked properly before
drivers are called, and as a result it is difficult to see
what should be allowed and what not.
In order to comprehensively check the API parameters parse
everything first, and then have the driver call a function
(cfg80211_check_station_change()) with the additionally
information about the kind of station that is being changed;
this allows the function to make better decisions than the
old code could.
While at it, also add a few checks, particularly in mesh
and clarify the TDLS station lifetime in documentation.
To be able to reduce a few checks, ignore any flag set bits
when the mask isn't set, they shouldn't be applied then.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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Instead of copying the code, create a new function
to parse the station's WME information.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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Parse the attributes first, and then disable the apply
flag if needed.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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Make the ability to leave the plink_state unchanged not use a
magic -1 variable that isn't in the enum, but an explicit change
flag; reject invalid plink states or actions and move the needed
constants for plink actions to the right header file. Also
reject plink_state changes for non-mesh interfaces.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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There are a few things that would otherwise conflict.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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When setting a monitor interface up or down, the idle state needs to be
recalculated, otherwise the hardware will just stay in its previous idle
state.
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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The VHT MCSes we advertise to the AP were supposed to
be restricted to the AP, but due to a bug in the logic
mac80211 will advertise rates to the AP that aren't
even supported by the local device. To fix this skip
any adjustment if the NSS isn't supported at all.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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Introduced with de74a1d9032f4d37ea453ad2a647e1aff4cd2591
"mac80211: fix WPA with VLAN on AP side with ps-sta".
Apparently overwrites the sdata pointer with non-valid data in
the case of mesh.
Fix this by checking for IFTYPE_AP_VLAN.
Signed-off-by: Marco Porsch <marco@cozybit.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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Given a device with many channels capabilities the wiphy
information can still overflow even though its size in
3.9 was reduced to 3.8 levels. For new userspace and
kernel 3.10 we're going to implement a new "split dump"
protocol that can use multiple messages per wiphy.
For now though, add a workaround to be able to send more
information to userspace. Since generic netlink doesn't
have a way to set the minimum dump size globally, and we
wouldn't really want to set it globally anyway, increase
the size only when needed, as described in the comments.
As userspace might not be prepared for large buffers, we
can only use 4k.
Also increase the size for the get_wiphy command.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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After Felix's patch it was still broken in case you
used more than just a single monitor interface. Fix
it better now.
Reported-by: Sujith Manoharan <sujith@msujith.org>
Tested-by: Sujith Manoharan <sujith@msujith.org>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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This is another case of data increasing the size of the
wiphy information significantly with a new feature, for
now remove this as well.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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Some mlme work structs are not cancelled on disassociation
nor interface deletion, which leads to them running after
the memory has been freed
There is not a clean way to cancel these in the disassociation
logic because they must be canceled outside of the ifmgd->mtx
lock, so just cancel them in mgd_stop logic that tears down
the station.
This fixes the crashes we see in 3.7.9+. The crash stack
trace itself isn't so helpful, but this warning gives
more useful info:
WARNING: at /home/greearb/git/linux-3.7.dev.y/lib/debugobjects.c:261 debug_print_object+0x7c/0x8d()
ODEBUG: free active (active state 0) object type: work_struct hint: ieee80211_sta_monitor_work+0x0/0x14 [mac80211]
Modules linked in: [...]
Pid: 14743, comm: iw Tainted: G C O 3.7.9+ #11
Call Trace:
[<ffffffff81087ef8>] warn_slowpath_common+0x80/0x98
[<ffffffff81087fa4>] warn_slowpath_fmt+0x41/0x43
[<ffffffff812a2608>] debug_print_object+0x7c/0x8d
[<ffffffff812a2bca>] debug_check_no_obj_freed+0x95/0x1c3
[<ffffffff8114cc69>] slab_free_hook+0x70/0x79
[<ffffffff8114ea3e>] kfree+0x62/0xb7
[<ffffffff8149f465>] netdev_release+0x39/0x3e
[<ffffffff8136ad67>] device_release+0x52/0x8a
[<ffffffff812937db>] kobject_release+0x121/0x158
[<ffffffff81293612>] kobject_put+0x4c/0x50
[<ffffffff8148f0d7>] netdev_run_todo+0x25c/0x27e
Cc: stable@vger.kernel.org
Signed-off-by: Ben Greear <greearb@candelatech.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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Re-order the quiesce code so that timers are always
stopped before work-items are flushed. This was not
the problem I saw, but I think it may still be more
correct.
Signed-off-by: Ben Greear <greearb@candelatech.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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When not using channel contexts with only monitor mode interfaces being
active, report local->monitor_chandef to userspace.
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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When the driver does not want a monitor mode VIF, no channel context is
allocated for it. This causes ieee80211_recalc_idle to put the hardware
into idle mode if only a monitor mode is active, breaking injection.
Fix this by checking local->monitors in addition to active channel
contexts.
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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Commit 6c17b77b67587b9f9e3070fb89fe98cef3187131 (mac80211: Fix tx queue
handling during scans) contains a bug that causes off-channel frames to
get queued when they should be handed down to the driver for transmit.
Prevent this from happening.
Reported-by: Fabio Rossi <rossi.f@inwind.it>
Signed-off-by: Seth Forshee <seth.forshee@canonical.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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Unicast frame with unknown forwarding information always trigger
the path discovery assuming destination is always located inside the
MBSS. This patch allows the forwarding to look for mesh gate if path
discovery inside the MBSS has failed.
Reported-by: Cedric Voncken <cedric.voncken@acksys.fr>
Signed-off-by: Chun-Yeow Yeoh <yeohchunyeow@gmail.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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Just like the radar information, the TCP WoWLAN capability
data can increase the wiphy information and make it too
big. Remove the TCP WoWLAN information; no driver supports
it and new userspace tools will be required as well.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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The wiphy information is getting very close to being too
much for a typical netlink dump message and adding the
radar attributes to channels and interface combinations
can push it over the limit, which means userspace gets no
information whatsoever. Therefore, remove these again for
now, no driver actually supports radar detection anyway
and a modified userspace is required as well.
We're working on a solution that will allow userspace to
request splitting the information across multiple netlink
messages, which will allow us to add this back.
Cc: Simon Wunderlich <simon.wunderlich@s2003.tu-chemnitz.de>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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The ieee80211_beacon_add_tim() function might be called
by drivers with BHs enabled, which causes a potential
deadlock if TX happens at the same time and attempts to
lock the tim_lock as well. Use spin_lock_bh to fix it.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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Pull NFS client bugfixes from Trond Myklebust:
"We've just concluded another Connectathon interoperability testing
week, and so here are the fixes for the bugs that were discovered:
- Don't allow NFS silly-renamed files to be deleted
- Don't start the retransmission timer when out of socket space
- Fix a couple of pnfs-related Oopses.
- Fix one more NFSv4 state recovery deadlock
- Don't loop forever when LAYOUTGET returns NFS4ERR_LAYOUTTRYLATER"
* tag 'nfs-for-3.9-2' of git://git.linux-nfs.org/projects/trondmy/linux-nfs:
SUNRPC: One line comment fix
NFSv4.1: LAYOUTGET EDELAY loops timeout to the MDS
SUNRPC: add call to get configured timeout
PNFS: set the default DS timeout to 60 seconds
NFSv4: Fix another open/open_recovery deadlock
nfs: don't allow nfs_find_actor to match inodes of the wrong type
NFSv4.1: Hold reference to layout hdr in layoutget
pnfs: fix resend_to_mds for directio
SUNRPC: Don't start the retransmission timer when out of socket space
NFS: Don't allow NFS silly-renamed files to be deleted, no signal
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Reported-by: Weston Andros Adamson <dros@netapp.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
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Returns the configured timeout for the xprt of the rpc client.
Signed-off-by: Weston Andros Adamson <dros@netapp.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
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If the socket is full, we're better off just waiting until it empties,
or until the connection is broken. The reason why we generally don't
want to time out is that the call to xprt->ops->release_xprt() will
trigger a connection reset, which isn't helpful...
Let's make an exception for soft RPC calls, since they have to provide
timeout guarantees.
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Cc: stable@vger.kernel.org
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Pull nfsd changes from J Bruce Fields:
"Miscellaneous bugfixes, plus:
- An overhaul of the DRC cache by Jeff Layton. The main effect is
just to make it larger. This decreases the chances of intermittent
errors especially in the UDP case. But we'll need to watch for any
reports of performance regressions.
- Containerized nfsd: with some limitations, we now support
per-container nfs-service, thanks to extensive work from Stanislav
Kinsbursky over the last year."
Some notes about conflicts, since there were *two* non-data semantic
conflicts here:
- idr_remove_all() had been added by a memory leak fix, but has since
become deprecated since idr_destroy() does it for us now.
- xs_local_connect() had been added by this branch to make AF_LOCAL
connections be synchronous, but in the meantime Trond had changed the
calling convention in order to avoid a RCU dereference.
There were a couple of more obvious actual source-level conflicts due to
the hlist traversal changes and one just due to code changes next to
each other, but those were trivial.
* 'for-3.9' of git://linux-nfs.org/~bfields/linux: (49 commits)
SUNRPC: make AF_LOCAL connect synchronous
nfsd: fix compiler warning about ambiguous types in nfsd_cache_csum
svcrpc: fix rpc server shutdown races
svcrpc: make svc_age_temp_xprts enqueue under sv_lock
lockd: nlmclnt_reclaim(): avoid stack overflow
nfsd: enable NFSv4 state in containers
nfsd: disable usermode helper client tracker in container
nfsd: use proper net while reading "exports" file
nfsd: containerize NFSd filesystem
nfsd: fix comments on nfsd_cache_lookup
SUNRPC: move cache_detail->cache_request callback call to cache_read()
SUNRPC: remove "cache_request" argument in sunrpc_cache_pipe_upcall() function
SUNRPC: rework cache upcall logic
SUNRPC: introduce cache_detail->cache_request callback
NFS: simplify and clean cache library
NFS: use SUNRPC cache creation and destruction helper for DNS cache
nfsd4: free_stid can be static
nfsd: keep a checksum of the first 256 bytes of request
sunrpc: trim off trailing checksum before returning decrypted or integrity authenticated buffer
sunrpc: fix comment in struct xdr_buf definition
...
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It doesn't appear that anyone actually needs to connect asynchronously.
Also, using a workqueue for the connect means we lose the namespace
information from the original process. This is a problem since there's
no way to explicitly pass in a filesystem namespace for resolution of an
AF_LOCAL address.
Acked-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
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Rewrite server shutdown to remove the assumption that there are no
longer any threads running (no longer true, for example, when shutting
down the service in one network namespace while it's still running in
others).
Do that by doing what we'd do in normal circumstances: just CLOSE each
socket, then enqueue it.
Since there may not be threads to handle the resulting queued xprts,
also run a simplified version of the svc_recv() loop run by a server to
clean up any closed xprts afterwards.
Cc: stable@kernel.org
Tested-by: Jason Tibbitts <tibbs@math.uh.edu>
Tested-by: Paweł Sikora <pawel.sikora@agmk.net>
Acked-by: Stanislav Kinsbursky <skinsbursky@parallels.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
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svc_age_temp_xprts expires xprts in a two-step process: first it takes
the sv_lock and moves the xprts to expire off their server-wide list
(sv_tempsocks or sv_permsocks) to a local list. Then it drops the
sv_lock and enqueues and puts each one.
I see no reason for this: svc_xprt_enqueue() will take sp_lock, but the
sv_lock and sp_lock are not otherwise nested anywhere (and documentation
at the top of this file claims it's correct to nest these with sp_lock
inside.)
Cc: stable@kernel.org
Tested-by: Jason Tibbitts <tibbs@math.uh.edu>
Tested-by: Paweł Sikora <pawel.sikora@agmk.net>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
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The reason to move cache_request() callback call from
sunrpc_cache_pipe_upcall() to cache_read() is that this garantees, that cache
access will be done userspace process context (only userspace process have
proper root context).
This is required for NFSd support in container: svc_export_request() (which is
cache_request callback) calls d_path(), which, in turn, traverse dentry up to
current->fs->root. Kernel threads always have global root, while container
have be in "root jail" - i.e. have it's own nested root.
Signed-off-by: Stanislav Kinsbursky <skinsbursky@parallels.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
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Passing this pointer is redundant since it's stored on cache_detail structure,
which is also passed to sunrpc_cache_pipe_upcall () function.
Signed-off-by: Stanislav Kinsbursky <skinsbursky@parallels.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
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For most of SUNRPC caches (except NFS DNS cache) cache_detail->cache_upcall is
redundant since all that it's implementations are doing is calling
sunrpc_cache_pipe_upcall() with proper function address argument.
Cache request function address is now stored on cache_detail structure and
thus all the code can be simplified.
Now, for those cache details, which doesn't have cache_upcall callback (the
only one, which still has is nfs_dns_resolve_template)
sunrpc_cache_pipe_upcall will be called instead.
Signed-off-by: Stanislav Kinsbursky <skinsbursky@parallels.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
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This callback will allow to simplify upcalls in further patches in this
series.
Signed-off-by: Stanislav Kinsbursky <skinsbursky@parallels.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
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authenticated buffer
When GSSAPI integrity signatures are in use, or when we're using GSSAPI
privacy with the v2 token format, there is a trailing checksum on the
xdr_buf that is returned.
It's checked during the authentication stage, and afterward nothing
cares about it. Ordinarily, it's not a problem since the XDR code
generally ignores it, but it will be when we try to compute a checksum
over the buffer to help prevent XID collisions in the duplicate reply
cache.
Fix the code to trim off the checksums after verifying them. Note that
in unwrap_integ_data, we must avoid trying to reverify the checksum if
the request was deferred since it will no longer be present when it's
revisited.
Signed-off-by: Jeff Layton <jlayton@redhat.com>
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addr.h
These routines are used by server and client code, so having them in a
separate header would be best.
Signed-off-by: Jeff Layton <jlayton@redhat.com>
Acked-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
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There is a race in enqueueing thread to a pool and
waking up a thread.
lockd doesn't wake up on reception of lock granted callback
if svc_wake_up() is called before lockd's thread is added
to a pool.
Signed-off-by: Andriy Skulysh <Andriy_Skulysh@xyratex.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
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Signed-off-by: J. Bruce Fields <bfields@redhat.com>
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The write function doesn't be implemented in file content, and it's meaningless
to write data into this file directly. Remove write permission from it.
Signed-off-by: Yanchuan Nian <ycnian@gmail.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client
Pull Ceph updates from Sage Weil:
"A few groups of patches here. Alex has been hard at work improving
the RBD code, layout groundwork for understanding the new formats and
doing layering. Most of the infrastructure is now in place for the
final bits that will come with the next window.
There are a few changes to the data layout. Jim Schutt's patch fixes
some non-ideal CRUSH behavior, and a set of patches from me updates
the client to speak a newer version of the protocol and implement an
improved hashing strategy across storage nodes (when the server side
supports it too).
A pair of patches from Sam Lang fix the atomicity of open+create
operations. Several patches from Yan, Zheng fix various mds/client
issues that turned up during multi-mds torture tests.
A final set of patches expose file layouts via virtual xattrs, and
allow the policies to be set on directories via xattrs as well
(avoiding the awkward ioctl interface and providing a consistent
interface for both kernel mount and ceph-fuse users)."
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client: (143 commits)
libceph: add support for HASHPSPOOL pool flag
libceph: update osd request/reply encoding
libceph: calculate placement based on the internal data types
ceph: update support for PGID64, PGPOOL3, OSDENC protocol features
ceph: update "ceph_features.h"
libceph: decode into cpu-native ceph_pg type
libceph: rename ceph_pg -> ceph_pg_v1
rbd: pass length, not op for osd completions
rbd: move rbd_osd_trivial_callback()
libceph: use a do..while loop in con_work()
libceph: use a flag to indicate a fault has occurred
libceph: separate non-locked fault handling
libceph: encapsulate connection backoff
libceph: eliminate sparse warnings
ceph: eliminate sparse warnings in fs code
rbd: eliminate sparse warnings
libceph: define connection flag helpers
rbd: normalize dout() calls
rbd: barriers are hard
rbd: ignore zero-length requests
...
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