15 Jan, 2011
1 commit
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rxrpc_workqueue isn't depended upon while reclaiming memory. Convert
to alloc_workqueue() without WQ_MEM_RECLAIM.Signed-off-by: Tejun Heo
Signed-off-by: David Howells
Cc: linux-afs@lists.infradead.org
Signed-off-by: Linus Torvalds
14 Jan, 2011
4 commits
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* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6: (41 commits)
fs: add documentation on fallocate hole punching
Gfs2: fail if we try to use hole punch
Btrfs: fail if we try to use hole punch
Ext4: fail if we try to use hole punch
Ocfs2: handle hole punching via fallocate properly
XFS: handle hole punching via fallocate properly
fs: add hole punching to fallocate
vfs: pass struct file to do_truncate on O_TRUNC opens (try #2)
fix signedness mess in rw_verify_area() on 64bit architectures
fs: fix kernel-doc for dcache::prepend_path
fs: fix kernel-doc for dcache::d_validate
sanitize ecryptfs ->mount()
switch afs
move internal-only parts of ncpfs headers to fs/ncpfs
switch ncpfs
switch 9p
pass default dentry_operations to mount_pseudo()
switch hostfs
switch affs
switch configfs
... -
* git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: (46 commits)
hwrng: via_rng - Fix memory scribbling on some CPUs
crypto: padlock - Move padlock.h into include/crypto
hwrng: via_rng - Fix asm constraints
crypto: n2 - use __devexit not __exit in n2_unregister_algs
crypto: mark crypto workqueues CPU_INTENSIVE
crypto: mv_cesa - dont return PTR_ERR() of wrong pointer
crypto: ripemd - Set module author and update email address
crypto: omap-sham - backlog handling fix
crypto: gf128mul - Remove experimental tag
crypto: af_alg - fix af_alg memory_allocated data type
crypto: aesni-intel - Fixed build with binutils 2.16
crypto: af_alg - Make sure sk_security is initialized on accept()ed sockets
net: Add missing lockdep class names for af_alg
include: Install linux/if_alg.h for user-space crypto API
crypto: omap-aes - checkpatch --file warning fixes
crypto: omap-aes - initialize aes module once per request
crypto: omap-aes - unnecessary code removed
crypto: omap-aes - error handling implementation improved
crypto: omap-aes - redundant locking is removed
crypto: omap-aes - DMA initialization fixes for OMAP off mode
... -
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client:
rbd: fix cleanup when trying to mount inexistent image
net/ceph: make ceph_msgr_wq non-reentrant
ceph: fsc->*_wq's aren't used in memory reclaim path
ceph: Always free allocated memory in osdmap_decode()
ceph: Makefile: Remove unnessary code
ceph: associate requests with opening sessions
ceph: drop redundant r_mds field
ceph: implement DIRLAYOUTHASH feature to get dir layout from MDS
ceph: add dir_layout to inode -
* 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial: (43 commits)
Documentation/trace/events.txt: Remove obsolete sched_signal_send.
writeback: fix global_dirty_limits comment runtime -> real-time
ppc: fix comment typo singal -> signal
drivers: fix comment typo diable -> disable.
m68k: fix comment typo diable -> disable.
wireless: comment typo fix diable -> disable.
media: comment typo fix diable -> disable.
remove doc for obsolete dynamic-printk kernel-parameter
remove extraneous 'is' from Documentation/iostats.txt
Fix spelling milisec -> ms in snd_ps3 module parameter description
Fix spelling mistakes in comments
Revert conflicting V4L changes
i7core_edac: fix typos in comments
mm/rmap.c: fix comment
sound, ca0106: Fix assignment to 'channel'.
hrtimer: fix a typo in comment
init/Kconfig: fix typo
anon_inodes: fix wrong function name in comment
fix comment typos concerning "consistent"
poll: fix a typo in comment
...Fix up trivial conflicts in:
- drivers/net/wireless/iwlwifi/iwl-core.c (moved to iwl-legacy.c)
- fs/ext4/ext4.hAlso fix missed 'diabled' typo in drivers/net/bnx2x/bnx2x.h while at it.
13 Jan, 2011
4 commits
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Signed-off-by: Al Viro
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ceph messenger code does a rather complex dancing around multithread
workqueue to make sure the same work item isn't executed concurrently
on different CPUs. This restriction can be provided by workqueue with
WQ_NON_REENTRANT.Make ceph_msgr_wq non-reentrant workqueue with the default concurrency
level and remove the QUEUED/BUSY logic.* This removes backoff handling in con_work() but it couldn't reliably
block execution of con_work() to begin with - queue_con() can be
called after the work started but before BUSY is set. It seems that
it was an optimization for a rather cold path and can be safely
removed.* The number of concurrent work items is bound by the number of
connections and connetions are independent from each other. With
the default concurrency level, different connections will be
executed independently.Signed-off-by: Tejun Heo
Cc: Sage Weil
Cc: ceph-devel@vger.kernel.org
Signed-off-by: Sage Weil -
Always free memory allocated to 'pi' in
net/ceph/osdmap.c::osdmap_decode().Signed-off-by: Jesper Juhl
Signed-off-by: Sage Weil -
Add a ceph_dir_layout to the inode, and calculate dentry hash values based
on the parent directory's specified dir_hash function. This is needed
because the old default Linux dcache hash function is extremely week and
leads to a poor distribution of files among dir fragments.Signed-off-by: Sage Weil
12 Jan, 2011
7 commits
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* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (67 commits)
cxgb4vf: recover from failure in cxgb4vf_open()
netfilter: ebtables: make broute table work again
netfilter: fix race in conntrack between dump_table and destroy
ah: reload pointers to skb data after calling skb_cow_data()
ah: update maximum truncated ICV length
xfrm: check trunc_len in XFRMA_ALG_AUTH_TRUNC
ehea: Increase the skb array usage
net/fec: remove config FEC2 as it's used nowhere
pcnet_cs: add new_id
tcp: disallow bind() to reuse addr/port
net/r8169: Update the function of parsing firmware
net: ppp: use {get,put}_unaligned_be{16,32}
CAIF: Fix IPv6 support in receive path for GPRS/3G
arp: allow to invalidate specific ARP entries
net_sched: factorize qdisc stats handling
mlx4: Call alloc_etherdev to allocate RX and TX queues
net: Add alloc_netdev_mqs function
caif: don't set connection request param size before copying data
cxgb4vf: fix mailbox data/control coherency domain race
qlcnic: change module parameter permissions
... -
* 'nfs-for-2.6.38' of git://git.linux-nfs.org/projects/trondmy/nfs-2.6: (89 commits)
NFS fix the setting of exchange id flag
NFS: Don't use vm_map_ram() in readdir
NFSv4: Ensure continued open and lockowner name uniqueness
NFS: Move cl_delegations to the nfs_server struct
NFS: Introduce nfs_detach_delegations()
NFS: Move cl_state_owners and related fields to the nfs_server struct
NFS: Allow walking nfs_client.cl_superblocks list outside client.c
pnfs: layout roc code
pnfs: update nfs4_callback_recallany to handle layouts
pnfs: add CB_LAYOUTRECALL handling
pnfs: CB_LAYOUTRECALL xdr code
pnfs: change lo refcounting to atomic_t
pnfs: check that partial LAYOUTGET return is ignored
pnfs: add layout to client list before sending rpc
pnfs: serialize LAYOUTGET(openstateid)
pnfs: layoutget rpc code cleanup
pnfs: change how lsegs are removed from layout list
pnfs: change layout state seqlock to a spinlock
pnfs: add prefix to struct pnfs_layout_hdr fields
pnfs: add prefix to struct pnfs_layout_segment fields
... -
The netlink interface to dump the connection tracking table has a race
when entries are deleted at the same time. A customer reported a crash
and the backtrace showed thatctnetlink_dump_table was running while a
conntrack entry was being destroyed.
(see https://bugzilla.vyatta.com/show_bug.cgi?id=6402).According to RCU documentation, when using hlist_nulls the reader
must handle the case of seeing a deleted entry and not proceed
further down the linked list. The old code would continue
which caused the scan to walk into the free list.This patch uses locking (rather than RCU) for this operation which
is guaranteed safe, and no longer requires getting reference while
doing dump operation.Signed-off-by: Stephen Hemminger
Signed-off-by: Pablo Neira Ayuso -
skb_cow_data() may allocate a new data buffer, so pointers on
skb should be set after this function.Bug was introduced by commit dff3bb06 ("ah4: convert to ahash")
and 8631e9bd ("ah6: convert to ahash").Signed-off-by: Wang Xuefu
Acked-by: Krzysztof Witek
Signed-off-by: Nicolas Dichtel
Signed-off-by: David S. Miller -
Maximum trunc length is defined by MAX_AH_AUTH_LEN (in bytes)
and need to be checked when this value is set (in bits) by
the user. In ah4.c and ah6.c a BUG_ON() checks this condiftion.Signed-off-by: Nicolas Dichtel
Signed-off-by: David S. Miller -
inet_csk_bind_conflict() logic currently disallows a bind() if
it finds a friend socket (a socket bound on same address/port)
satisfying a set of conditions :1) Current (to be bound) socket doesnt have sk_reuse set
OR
2) other socket doesnt have sk_reuse set
OR
3) other socket is in LISTEN stateWe should add the CLOSE state in the 3) condition, in order to avoid two
REUSEADDR sockets in CLOSE state with same local address/port, since
this can deny further operations.Note : a prior patch tried to address the problem in a different (and
buggy) way. (commit fda48a0d7a8412ced tcp: bind() fix when many ports
are bound).Reported-by: Gaspar Chilingarov
Reported-by: Daniel Baluta
Tested-by: Daniel Baluta
Signed-off-by: Eric Dumazet
Signed-off-by: David S. Miller
11 Jan, 2011
10 commits
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Use proper data types for storing the count of the binary blob and
length of a string. Without this patch length calculation of string will
always result in -1 because of comparision between signed and unsigned
integer.Signed-off-by: M. Mohan Kumar
Signed-off-by: Venkateswararao Jujjuri
Signed-off-by: Eric Van Hensbergen -
Checks version field of IP in the receive path for GPRS/3G data
and appropriately sets the value of skb->protocol.Signed-off-by: Sjur Braendeland
Signed-off-by: David S. Miller -
IPv4 over firewire needs to be able to remove ARP entries
from the ARP cache that belong to nodes that are removed, because
IPv4 over firewire uses ARP packets for private information
about nodes.This information becomes invalid as soon as node drops
off the bus and when it reconnects, its only possible
to start talking to it after it responded to an ARP packet.
But ARP cache prevents such packets from being sent.Signed-off-by: Maxim Levitsky
Signed-off-by: David S. Miller -
HTB takes into account skb is segmented in stats updates.
Generalize this to all schedulers.They should use qdisc_bstats_update() helper instead of manipulating
bstats.bytes and bstats.packetsAdd bstats_update() helper too for classes that use
gnet_stats_basic_packed fields.Note : Right now, TCQ_F_CAN_BYPASS shortcurt can be taken only if no
stab is setup on qdisc.Signed-off-by: Eric Dumazet
Signed-off-by: David S. Miller -
Added alloc_netdev_mqs function which allows the number of transmit and
receive queues to be specified independenty. alloc_netdev_mq was
changed to a macro to call the new function. Also added
alloc_etherdev_mqs with same purpose.Signed-off-by: Tom Herbert
Signed-off-by: David S. Miller -
The size field should not be set until after the data is successfully
copied in.Signed-off-by: Dan Rosenberg
Signed-off-by: David S. Miller -
Dan Rosenberg pointed out that there were some signed comparison bugs
in the phonet protocol.http://marc.info/?l=full-disclosure&m=129424528425330&w=2
The problem is that we check for array overflows but "protocol" is
signed and we don't check for array underflows. If you have already
have CAP_SYS_ADMIN then you could use the bugs to get root, or someone
could cause an oops by mistake.Signed-off-by: Dan Carpenter
Acked-by: Rémi Denis-Courmont
Signed-off-by: David S. Miller -
Conflicts:
fs/nfs/nfs2xdr.c
fs/nfs/nfs3xdr.c
fs/nfs/nfs4xdr.c -
vm_map_ram() is not available on NOMMU platforms, and causes trouble
on incoherrent architectures such as ARM when we access the page data
through both the direct and the virtual mapping.The alternative is to use the direct mapping to access page data
for the case when we are not crossing a page boundary, but to copy
the data into a linear scratch buffer when we are accessing data
that spans page boundaries.Signed-off-by: Trond Myklebust
Tested-by: Marc Kleine-Budde
Cc: stable@kernel.org [2.6.37] -
Using "iptables -L" with a lot of rules have a too big BH latency.
Jesper mentioned ~6 ms and worried of frame drops.Switch to a per_cpu seqlock scheme, so that taking a snapshot of
counters doesnt need to block BH (for this cpu, but also other cpus).This adds two increments on seqlock sequence per ipt_do_table() call,
its a reasonable cost for allowing "iptables -L" not block BH
processing.Reported-by: Jesper Dangaard Brouer
Signed-off-by: Eric Dumazet
CC: Patrick McHardy
Acked-by: Stephen Hemminger
Acked-by: Jesper Dangaard Brouer
Signed-off-by: Pablo Neira Ayuso
10 Jan, 2011
9 commits
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In order to compute the features for other offloads (primarily
scatter/gather), we need to first check the ability of the NIC to
offload the checksum for the packet. Since we have already computed
this, we can directly use the result instead of figuring it out
again.Signed-off-by: Jesse Gross
Signed-off-by: David S. Miller -
This switches skb_need_linearize() to use the features that have
been centrally computed. In doing so, this fixes a problem where
scatter/gather should not be used because the card does not support
checksum offloading on that type of packet. On device registration
we only check that some form of checksum offloading is available if
scatter/gatther is enabled but we must also check at transmission
time. Examples of this include IPv6 or vlan packets on a NIC that
only supports IPv4 offloading.Signed-off-by: Jesse Gross
Signed-off-by: David S. Miller -
This switches dev_gso_segment() to use the device features computed
by the centralized routine. In doing so, it fixes a problem where
it would always use dev->features, instead of those appropriate
to the number of vlan tags if any are present.Signed-off-by: Jesse Gross
Signed-off-by: David S. Miller -
Now that there is a single function that can compute the device
features relevant to a packet, we don't want to run it for each
offload. This converts netif_needs_gso() to take the features
of the device, rather than computing them itself.Signed-off-by: Jesse Gross
Signed-off-by: David S. Miller -
netif_get_vlan_features() is currently only used by netif_needs_gso(),
so it only concerns itself with GSO features. However, several other
places also should take into account the contents of the packet when
deciding whether to offload to hardware. This generalizes the function
to return features about all of the various forms of offloading. Since
offloads tend to be linked together, this avoids duplicating the logic
in each location (i.e. the scatter/gather code also needs the checksum
logic).Suggested-by: Michał Mirosław
Signed-off-by: Jesse Gross
Signed-off-by: David S. Miller -
We currently only have software fallback for one type of checksum: the
TCP/UDP one's complement. This means that a protocol that uses hardware
offloading for a different type of checksum (FCoE, SCTP) must directly
check the device's features and do the right thing ahead of time. By
the time we get to dev_can_checksum(), we're only deciding whether to
apply the one algorithm in software or hardware. NETIF_F_HW_CSUM has the
same capabilities as the software version, so we should always use it if
present. The primary advantage of this is multiply tagged vlans can use
hardware checksumming.Signed-off-by: Jesse Gross
Signed-off-by: David S. Miller -
Fix new kernel-doc notation warning in net/core/filter.c:
Warning(net/core/filter.c:172): No description found for parameter 'fentry'
Warning(net/core/filter.c:172): Excess function parameter 'filter' description in 'sk_run_filter'Signed-off-by: Randy Dunlap
Signed-off-by: David S. Miller -
Due to NLM_F_DUMP is composed of two bits, NLM_F_ROOT | NLM_F_MATCH,
when doing "if (x & NLM_F_DUMP)", it tests for _either_ of the bits
being set. Because NLM_F_MATCH's value overlaps with NLM_F_EXCL,
non-dump requests with NLM_F_EXCL set are mistaken as dump requests.Substitute the condition to test for _all_ bits being set.
Signed-off-by: Jan Engelhardt
Acked-by: Pablo Neira Ayuso
Signed-off-by: David S. Miller
08 Jan, 2011
3 commits
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* 'for-2.6.38' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq: (33 commits)
usb: don't use flush_scheduled_work()
speedtch: don't abuse struct delayed_work
media/video: don't use flush_scheduled_work()
media/video: explicitly flush request_module work
ioc4: use static work_struct for ioc4_load_modules()
init: don't call flush_scheduled_work() from do_initcalls()
s390: don't use flush_scheduled_work()
rtc: don't use flush_scheduled_work()
mmc: update workqueue usages
mfd: update workqueue usages
dvb: don't use flush_scheduled_work()
leds-wm8350: don't use flush_scheduled_work()
mISDN: don't use flush_scheduled_work()
macintosh/ams: don't use flush_scheduled_work()
vmwgfx: don't use flush_scheduled_work()
tpm: don't use flush_scheduled_work()
sonypi: don't use flush_scheduled_work()
hvsi: don't use flush_scheduled_work()
xen: don't use flush_scheduled_work()
gdrom: don't use flush_scheduled_work()
...Fixed up trivial conflict in drivers/media/video/bt8xx/bttv-input.c
as per Tejun. -
* 'for-linus' of git://git390.marist.edu/pub/scm/linux-2.6: (65 commits)
[S390] prevent unneccesary loops_per_jiffy recalculation
[S390] cpuinfo: use get_online_cpus() instead of preempt_disable()
[S390] smp: remove cpu hotplug messages
[S390] mutex: enable spinning mutex on s390
[S390] mutex: Introduce arch_mutex_cpu_relax()
[S390] cio: fix ccwgroup unregistration race condition
[S390] perf: add DWARF register lookup for s390
[S390] cleanup ftrace backend functions
[S390] ptrace cleanup
[S390] smp/idle: call init_idle() before starting a new cpu
[S390] smp: delay idle task creation
[S390] dasd: Correct retry counter for terminated I/O.
[S390] dasd: Add support for raw ECKD access.
[S390] dasd: Prevent deadlock during suspend/resume.
[S390] dasd: Improve handling of stolen DASD reservation
[S390] dasd: do path verification for paths added at runtime
[S390] dasd: add High Performance FICON multitrack support
[S390] cio: reduce memory consumption of itcw structures
[S390] nmi: enable machine checks early
[S390] qeth: buffer count imbalance
... -
…t/npiggin/linux-npiggin
* 'vfs-scale-working' of git://git.kernel.org/pub/scm/linux/kernel/git/npiggin/linux-npiggin: (57 commits)
fs: scale mntget/mntput
fs: rename vfsmount counter helpers
fs: implement faster dentry memcmp
fs: prefetch inode data in dcache lookup
fs: improve scalability of pseudo filesystems
fs: dcache per-inode inode alias locking
fs: dcache per-bucket dcache hash locking
bit_spinlock: add required includes
kernel: add bl_list
xfs: provide simple rcu-walk ACL implementation
btrfs: provide simple rcu-walk ACL implementation
ext2,3,4: provide simple rcu-walk ACL implementation
fs: provide simple rcu-walk generic_check_acl implementation
fs: provide rcu-walk aware permission i_ops
fs: rcu-walk aware d_revalidate method
fs: cache optimise dentry and inode for rcu-walk
fs: dcache reduce branches in lookup path
fs: dcache remove d_mounted
fs: fs_struct use seqlock
fs: rcu-walk for path lookup
...
07 Jan, 2011
2 commits
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The 'seq_window' sysctl sets the initial value for the DCCP Sequence Window,
which may range from 32..2^46-1 (RFC 4340, 7.5.2). The patch sets the upper
bound consistently to 2^32-1 on both 32 and 64 bit systems, which should be
sufficient - with a RTT of 1sec and 1-byte packets, a seq_window of 2^32-1
corresponds to a link speed of 34 Gbps.Signed-off-by: Gerrit Renker
-
Currently dccp_check_seqno allows any valid packet to update the Greatest
Sequence Number Received, even if that packet's sequence number is less than
the current GSR. This patch adds a check to make sure that the new packet's
sequence number is greater than GSR.Signed-off-by: Samuel Jero
Signed-off-by: Gerrit Renker
