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2011-08-11mlx4: Move the Mellanox driverJeff Kirsher40-25/+56
Moves the Mellanox driver into drivers/net/ethernet/mellanox/ and make the necessary Kconfig and Makefile changes. CC: Roland Dreier <roland@kernel.org> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-11bna: Move the Brocade driverJeff Kirsher33-16/+47
Moves the Brocade driver into drivers/net/ethernet/brocade/ and make the necessary Kconfig and Makefile changes. CC: Rasesh Mody <rmody@brocade.com> CC: Debashis Dutt <ddutt@brocade.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-11be2net: Move the Emulex driverJeff Kirsher16-10/+36
Moves the Emulex driver into drivers/net/ethernet/emulex/ and make the necessary Kconfig and Makefile changes. CC: Sathya Perla <sathya.perla@emulex.com> CC: Subbu Seetharaman <subbu.seetharaman@emulex.com> CC: Ajit Khaparde <ajit.khaparde@emulex.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-11sfc: Move the Solarflare driversJeff Kirsher42-6/+5
Moves the Solarflare drivers into drivers/net/ethernet/sfc/ and make the necessary Kconfig and Makefile changes. CC: Steve Hodgson <shodgson@solarflare.com> CC: Ben Hutchings <bhutchings@solarflare.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-11cassini/niu/sun*: Move the Sun driversJeff Kirsher24-76/+102
Moves the Sun drivers into drivers/net/ethernet/sun/ and make the necessary Kconfig and Makefile changes. Oliver Hartkopp <socketcan@hartkopp.net> suggested removing the sun* prefix on the driver names. This type of change I will leave up to the driver maintainers. CC: Sam Creasey <sammy@sammy.net> CC: Adrian Sun <asun@darksunrising.com> CC: Benjamin Herrenscmidt <benh@kernel.crashing.org> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-11ni5010: Move the Racal-Interlan (Micom) driverJeff Kirsher9-27/+40
Moves the Racal-Interlan driver into drivers/net/ethernet/racal/ and make the necessary Kconfig and Makefile changes. CC: "Jan-Pascal van Best" <janpascal@vanbest.org> CC: Andreas Mohr <andi@lisas.de> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-10i825xx: Move the Intel 82586/82593/82596 based driversJeff Kirsher31-194/+208
Move the drivers that use the i82586/i82593/i82596 chipsets into drivers/net/ethernet/i825xx/ and make the necessary Kconfig and Makefile changes. There were 4 3Com drivers which were initially moved into 3com/, which now reside in i825xx since they all used the i82586 chip. CC: Philip Blundell <philb@gnu.org> CC: Russell King <linux@arm.linux.org.uk> CC: <aris@cathedrallabs.org> CC: Donald Becker <becker@scyld.com> CC: Chris Beauregard <cpbeaure@undergrad.math.uwaterloo.ca> CC: Richard Procter <rnp@paradise.net.nz> CC: Andries Brouwer <aeb@cwi.nl> CC: "M.Hipp" <hippm@informatik.uni-tuebingen.de> CC: Richard Hirst <richard@sleepie.demon.co.uk> CC: Sam Creasey <sammy@oh.verio.com> CC: Thomas Bogendoerfer <tsbogend@alpha.franken.de> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-10smsc: Move the SMC (SMSC) driversJeff Kirsher22-144/+151
Moves the SMC (SMSC) drivers into drivers/net/ethernet/smsc/ and the necessary Kconfig and Makefile changes. Also did some cleanup of NET_VENDOR_SMC Kconfig tag for the 8390 based drivers. CC: Nicolas Pitre <nico@fluxnic.net> CC: Donald Becker <becker@scyld.com> CC: Erik Stahlman <erik@vt.edu> CC: Dustin McIntire <dustin@sensoria.com> CC: Steve Glendinning <steve.glendinning@smsc.com> CC: David Hinds <dahinds@users.sourceforge.net> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-10qlogic: Move the QLogic driversJeff Kirsher32-33/+67
Moves the QLogic drivers into drivers/net/ethernet/qlogic/ and the necessary Kconfig and Makefile changes. CC: Ron Mercer <ron.mercer@qlogic.com> CC: Amit Kumar Salecha <amit.salecha@qlogic.com> CC: Anirban Chakraborty <anirban.chakraborty@qlogic.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Acked-by: Anirban Chakraborty <anirban.chakraborty@qlogic.com>
2011-08-10intel: Move the Intel wired LAN driversJeff Kirsher101-220/+239
Moves the Intel wired LAN drivers into drivers/net/ethernet/intel/ and the necessary Kconfig and Makefile changes. Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-10chelsio: Move the Chelsio driversJeff Kirsher78-97/+123
Moves the drivers for the Chelsio chipsets into drivers/net/ethernet/chelsio/ and the necessary Kconfig and Makefile changes. CC: Divy Le Ray <divy@chelsio.com> CC: Dimitris Michailidis <dm@chelsio.com> CC: Casey Leedom <leedom@chelsio.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-10broadcom: Move the Broadcom driversJeff Kirsher44-115/+141
Moves the drivers for Broadcom devices into drivers/net/ethernet/broadcom/ and the necessary Kconfig and Makefile changes. CC: Eilon Greenstein <eilong@broadcom.com> CC: Michael Chan <mchan@broadcom.com> CC: Matt Carlson <mcarlson@broadcom.com> CC: Gary Zambrano <zambrano@broadcom.com> CC: "Maciej W. Rozycki" <macro@linux-mips.org> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-108390: Move the 8390 related driversJeff Kirsher41-344/+384
Moves the drivers for the National Semi-conductor 8390 chipset into drivers/net/ethernet/8390/ and the necessary Kconfig and Makefile changes. CC: Donald Becker <becker@scyld.com> CC: Paul Gortmaker <paul.gortmaker@windriver.com> CC: Alain Malek <alain.malek@cryogen.com> CC: Peter De Schrijver <p2@mind.be> CC: "David Huggins-Daines" <dhd@debian.org> CC: Wim Dumon <wimpie@kotnet.org> CC: Yoshinori Sato <ysato@users.sourceforge.jp> CC: David Hinds <dahinds@users.sourceforge.net> CC: Russell King <linux@arm.linux.org.uk> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-10amd: Move AMD (Lance) chipset driversJeff Kirsher37-187/+216
Moves the drivers for the AMD chipsets into drivers/net/ethernet/amd/ and the necessary Kconfig and Makfile changes. The au1000 (Alchemy) driver was also moved into the same directory even though it is not a "Lance" driver. CC: Peter Maydell <pmaydell@chiark.greenend.org.uk> CC: Roman Hodek <Roman.Hodek@informatik.uni-erlangen.de> CC: "Maciej W. Rozycki" <macro@linux-mips.org> CC: Donald Becker <becker@scyld.com> CC: Sam Creasey <sammy@users.qual.net> CC: Miguel de Icaza <miguel@nuclecu.unam.mx> CC: Thomas Bogendoerfer <tsbogend@alpha.franken.de> CC: Don Fry <pcnet32@frontier.com> CC: Geert Uytterhoeven <geert@linux-m68k.org> CC: Russell King <linux@arm.linux.org.uk> CC: David Davies <davies@maniac.ultranet.com> CC: "M.Hipp" <hippm@informatik.uni-tuebingen.de> CC: Pete Popov <ppopov@embeddedalley.com> CC: David Hinds <dahinds@users.sourceforge.net> CC: "Roger C. Pao" <rpao@paonet.org> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-103c*/acenic/typhoon: Move 3Com Ethernet driversJeff Kirsher20-158/+176
Moves the 3Com drivers into drivers/net/ethernet/3com/ and the necessary Kconfig and Makefile changes. Did not move the following drivers becuase they use a non-3Com chipset: 3c503, 3c505, 3c507, 3c523 and 3c527 CC: Steffen Klassert <klassert@mathematik.tu-chemnitz.de> CC: David Dillow <dave@thedillows.org> CC: Jes Sorensen <jes@trained-monkey.org> CC: Alan Cox <alan@linux.intel.com> CC: David Hinds <dahinds@users.sourceforge.net> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Acked-by: David Dillow <dave@thedillows.org>
2011-08-10drivers/net/ethernet: Add ethernet dir and config optionJeff Kirsher4-1/+20
This is the initial patch to organize the drivers/net directory structure and networking device driver config options. This patch does the following: - add drivers/net/ethernet/Kconfig - integrate the new files into the existing config Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-08-09net: fix potential neighbour race in dst_ifdown()Eric Dumazet1-5/+10
Followup of commit f2c31e32b378a (fix NULL dereferences in check_peer_redir()). We need to make sure dst neighbour doesnt change in dst_ifdown(). Fix some sparse errors. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-08-07dp83640: increase receive time stamp buffer sizeRichard Cochran1-3/+2
The dp83640 buffers receive time stamps from special PHY status frames, matching them to received PTP packets in a work queue. Because the timeout for orphaned time stamps is so long and the buffer is so small, the driver can drop time stamps under moderate PTP traffic. This commit fixes the issue by decreasing the timeout to (at least) one timer tick and increasing the buffer size. Signed-off-by: Richard Cochran <richard.cochran@omicron.at> Cc: <stable@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-08-07gianfar: fix fiper alignment after resetting the timeRichard Cochran1-7/+2
After resetting the time, the PPS signals on the FIPER output channels are incorrectly offset from the clock time, as can be readily verified by a looping back the FIPER to the external time stamp input. Despite its name, setting the "Fiper Realignment Disable" bit seems to fix the problem, at least on the P2020. Also, following the example code from the Freescale BSP, it is not really necessary to disable and re-enable the timer in order to reprogram the FIPER. (The documentation is rather unclear on this point. It seems that writing to the alarm register also disables the FIPER.) Signed-off-by: Richard Cochran <richard.cochran@omicron.at> Cc: <stable@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-08-07rtl8150: rtl8150_disconnect(...) does not need tasklet_disable(...)huajun li1-1/+0
Executing cmd 'rmmod rtl8150' does not return(if your device connects to host), the root cause is tasklet_disable() causes tasklet_kill() block, remove it from rtl8150_disconnect(). Signed-off-by: Huajun Li <huajun.li.lee@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-08-07ipv4: use dst with ref during bcast/mcast loopbackJulian Anastasov1-0/+1
Make sure skb dst has reference when moving to another context. Currently, I don't see protocols that can hit it when sending broadcasts/multicasts to loopback using noref dsts, so it is just a precaution. Signed-off-by: Julian Anastasov <ja@ssi.bg> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-08-07ipv4: route non-local sources for raw socketJulian Anastasov2-2/+3
The raw sockets can provide source address for routing but their privileges are not considered. We can provide non-local source address, make sure the FLOWI_FLAG_ANYSRC flag is set if socket has privileges for this, i.e. based on hdrincl (IP_HDRINCL) and transparent flags. Signed-off-by: Julian Anastasov <ja@ssi.bg> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-08-07netfilter: TCP and raw fix for ip_route_me_harderJulian Anastasov1-10/+8
TCP in some cases uses different global (raw) socket to send RST and ACK. The transparent flag is not set there. Currently, it is a problem for rerouting after the previous change. Fix it by simplifying the checks in ip_route_me_harder and use FLOWI_FLAG_ANYSRC even for sockets. It looks safe because the initial routing allowed this source address to be used and now we just have to make sure the packet is rerouted. As a side effect this also allows rerouting for normal raw sockets that use spoofed source addresses which was not possible even before we eliminated the ip_route_input call. Signed-off-by: Julian Anastasov <ja@ssi.bg> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-08-07netxen: add vlan LRO supportRajesh Borundia3-10/+107
o To support vlan lro, driver need to program ip address in device. o Same ip addresses need to be program after fw recovery, so sotre them in list. o In case of vlan packet, include vlan header length while calculating ip and tcp headers. Signed-off-by: Rajesh Borundia <rajesh.borundia@qlogic.com> Signed-off-by: Amit Kumar Salecha <amit.salecha@qlogic.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-08-07net: Make userland include of netlink.h more sane.David S. Miller2-3/+5
Currently userland will barf when including linux/netlink.h unless it precisely includes sys/socket.h first. The issue is where the definition of "sa_family_t" comes from. We've been back and forth on how to fix this issue in the past, see: http://thread.gmane.org/gmane.linux.debian.devel.bugs.general/622621 http://thread.gmane.org/gmane.linux.network/143380 Ben Hutchings suggested we take a hint from how we handle the sockaddr_storage type. First we define a "__kernel_sa_family_t" to linux/socket.h that is always defined. Then if __KERNEL__ is defined, we also define "sa_family_t" as equal to "__kernel_sa_family_t". Then in places like linux/netlink.h we use __kernel_sa_family_t in user visible datastructures. Reported-by: Michel Machado <michel@digirati.com.br> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-08-07ipv4: Fix ip_getsockopt for IP_PKTOPTIONSDaniel Baluta1-4/+5
IP_PKTOPTIONS is broken for 32-bit applications running in COMPAT mode on 64-bit kernels. This happens because msghdr's msg_flags field is always set to zero. When running in COMPAT mode this should be set to MSG_CMSG_COMPAT instead. Signed-off-by: Tiberiu Szocs-Mihai <tszocs@ixiacom.com> Signed-off-by: Daniel Baluta <dbaluta@ixiacom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-08-07net/usb: Add IPv6 support to the LG-VL600 LTE USB modem driverMark Kamichoff1-0/+19
The LG-VL600 LTE USB modem supports IPv6, but uses and expects an IPv4 ethertype (0x800) for these packets instead of the standard 0x86dd. This patch peeks at the IP version in the L3 header and sets the ethertype appropriately for IPv6 packets. Signed-off-by: Mark Kamichoff <prox@prolixium.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-08-07compat_ioctl: add compat handler for PPPIOCGL2TPSTATSFlorian Westphal1-0/+1
fixes following error seen on x86_64 kernel: ioctl32(openl2tpd:7480): Unknown cmd fd(14) cmd(80487436){t:'t';sz:72} arg(ffa7e6c0) on socket:[105094] The argument (struct pppol2tp_ioc_stats) uses "aligned_u64" and thus doesn't need fixups. Cc: James Chapman <jchapman@katalix.com> Cc: Alexander Viro <viro@zeniv.linux.org.uk> Cc: linux-fsdevel@vger.kernel.org Signed-off-by: Florian Westphal <fw@strlen.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-08-07ipv4: fix the reusing of routing cache entriesJulian Anastasov1-1/+2
compare_keys and ip_route_input_common rely on rt_oif for distinguishing of input and output routes with same keys values. But sometimes the input route has also same hash chain (keyed by iif != 0) with the output routes (keyed by orig_oif=0). Problem visible if running with small number of rhash_entries. Fix them to use rt_route_iif instead. By this way input route can not be returned to users that request output route. The patch fixes the ip_rt_bug errors that were reported in ip_local_out context, mostly for 255.255.255.255 destinations. Signed-off-by: Julian Anastasov <ja@ssi.bg> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-08-07bonding: document two undocumented options.Nicolas de Pesloüan1-0/+29
Commit 655f8919d549ad1872e24d826b6ce42530516d2e bonding: add min links parameter to 802.3ad and commit ebd8e4977a87cb81d93c62a9bff0102a9713722f bonding: add all_slaves_active parameter introduced new options to bonding, but didn't provide the documentation for those options. V2: add the default value for both options. V3: document the exact behavior of min_links default value. Signed-off-by: Nicolas de Pesloüan <nicolas.2p.debian@free.fr> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-08-07slip: fix NOHZ local_softirq_pending 08 warningMatvejchikov Ilya1-1/+1
When using nanosleep() in an userspace application we get a ratelimit warning: NOHZ: local_softirq_pending 08 According to 481a8199142c050b72bff8a1956a49fd0a75bbe0 the problem is caused by netif_rx() function. This patch replaces netif_rx() with netif_rx_ni() which has to be used from process/softirq context. Signed-off-by: Matvejchikov Ilya <matvejchikov@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-08-07netfilter: avoid double free in nf_reinjectJulian Anastasov1-0/+1
NF_STOLEN means skb was already freed Signed-off-by: Julian Anastasov <ja@ssi.bg> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-08-07qla3xxx: remove an extra semi-colonDan Carpenter1-1/+1
The define is only used one place, and it's at the end of a line so the semi-colon doesn't affect anything. But let's clean it up anyway. Signed-off-by: Dan Carpenter <error27@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-08-07ucc_geth: Add SUPPORTED_MII and SUPPORTED_AutonegJoakim Tjernlund1-4/+6
The driver supports Autoneg and at least MII. Tell the PHY that to avoid any confusion in the PHY code. Signed-off-by: Joakim Tjernlund <Joakim.Tjernlund@transmode.se> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-08-07via-velocity : cleanups.françois romieu1-46/+25
- empty lines - tabs / spaces - ETHTOOL_GWOL _is_ defined - useless cast from void * Signed-off-by: Francois Romieu <romieu@fr.zoreil.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-08-07via-velocity : ethtool statistics support.françois romieu1-0/+74
Signed-off-by: Francois Romieu <romieu@fr.zoreil.com> Tested-by: Jon Nelson <jnelson@jamponi.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-08-07via-velocity : update receive packets statistics.françois romieu1-0/+1
Addresses https://bugzilla.kernel.org/show_bug.cgi?id=14076. Signed-off-by: Francois Romieu <romieu@fr.zoreil.com> Tested-by: Jon Nelson <jnelson@jamponi.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-08-07sh: Fix boot crash related to SCIRafael J. Wysocki1-1/+1
Commit d006199e72a9 ("serial: sh-sci: Regtype probing doesn't need to be fatal.") made sci_init_single() return when sci_probe_regmap() succeeds, although it should return when sci_probe_regmap() fails. This causes systems using the serial sh-sci driver to crash during boot. Fix the problem by using the right return condition. Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-08-07arm: remove stale export of 'sha_transform'Linus Torvalds1-3/+0
The generic library code already exports the generic function, this was left-over from the ARM-specific version that just got removed. Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-08-07arm: remove "optimized" SHA1 routinesLinus Torvalds2-212/+1
Since commit 1eb19a12bd22 ("lib/sha1: use the git implementation of SHA-1"), the ARM SHA1 routines no longer work. The reason? They depended on the larger 320-byte workspace, and now the sha1 workspace is just 16 words (64 bytes). So the assembly version would overwrite the stack randomly. The optimized asm version is also probably slower than the new improved C version, so there's no reason to keep it around. At least that was the case in git, where what appears to be the same assembly language version was removed two years ago because the optimized C BLK_SHA1 code was faster. Reported-and-tested-by: Joachim Eastwood <manabian@gmail.com> Cc: Andreas Schwab <schwab@linux-m68k.org> Cc: Nicolas Pitre <nico@fluxnic.net> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-08-07fix rcu annotations noise in cred.hAl Viro1-5/+6
task->cred is declared as __rcu, and access to other tasks' ->cred is, indeed, protected. Access to current->cred does not need rcu_dereference() at all, since only the task itself can change its ->cred. sparse, of course, has no way of knowing that... Add force-cast in current_cred(), make current_fsuid() et.al. use it. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-08-07vfs: rename 'do_follow_link' to 'should_follow_link'Linus Torvalds1-2/+2
Al points out that the do_follow_link() helper function really is misnamed - it's about whether we should try to follow a symlink or not, not about actually doing the following. Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-08-07Fix POSIX ACL permission checkAri Savolainen1-1/+1
After commit 3567866bf261: "RCUify freeing acls, let check_acl() go ahead in RCU mode if acl is cached" posix_acl_permission is being called with an unsupported flag and the permission check fails. This patch fixes the issue. Signed-off-by: Ari Savolainen <ari.m.savolainen@gmail.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2011-08-06vfs: optimize inode cache access patternsLinus Torvalds4-34/+106
The inode structure layout is largely random, and some of the vfs paths really do care. The path lookup in particular is already quite D$ intensive, and profiles show that accessing the 'inode->i_op->xyz' fields is quite costly. We already optimized the dcache to not unnecessarily load the d_op structure for members that are often NULL using the DCACHE_OP_xyz bits in dentry->d_flags, and this does something very similar for the inode ops that are used during pathname lookup. It also re-orders the fields so that the fields accessed by 'stat' are together at the beginning of the inode structure, and roughly in the order accessed. The effect of this seems to be in the 1-2% range for an empty kernel "make -j" run (which is fairly kernel-intensive, mostly in filename lookup), so it's visible. The numbers are fairly noisy, though, and likely depend a lot on exact microarchitecture. So there's more tuning to be done. Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-08-06vfs: renumber DCACHE_xyz flags, remove some stale onesLinus Torvalds2-18/+14
Gcc tends to generate better code with small integers, including the DCACHE_xyz flag tests - so move the common ones to be first in the list. Also just remove the unused DCACHE_INOTIFY_PARENT_WATCHED and DCACHE_AUTOFS_PENDING values, their users no longer exists in the source tree. And add a "unlikely()" to the DCACHE_OP_COMPARE test, since we want the common case to be a nice straight-line fall-through. Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-08-06ore: Make ore its own moduleBoaz Harrosh3-1/+23
Export everything from ore need exporting. Change Kbuild and Kconfig to build ore.ko as an independent module. Import ore from exofs Signed-off-by: Boaz Harrosh <bharrosh@panasas.com>
2011-08-06exofs: Rename raid engine from exofs/ios.c => oreBoaz Harrosh6-255/+295
ORE stands for "Objects Raid Engine" This patch is a mechanical rename of everything that was in ios.c and its API declaration to an ore.c and an osd_ore.h header. The ore engine will later be used by the pnfs objects layout driver. * File ios.c => ore.c * Declaration of types and API are moved from exofs.h to a new osd_ore.h * All used types are prefixed by ore_ from their exofs_ name. * Shift includes from exofs.h to osd_ore.h so osd_ore.h is independent, include it from exofs.h. Other than a pure rename there are no other changes. Next patch will move the ore into it's own module and will export the API to be used by exofs and later the layout driver Signed-off-by: Boaz Harrosh <bharrosh@panasas.com>
2011-08-06exofs: ios: Move to a per inode components & device-tableBoaz Harrosh4-183/+218
Exofs raid engine was saving on memory space by having a single layout-info, single pid, and a single device-table, global to the filesystem. Then passing a credential and object_id info at the io_state level, private for each inode. It would also devise this contraption of rotating the device table view for each inode->ino to spread out the device usage. This is not compatible with the pnfs-objects standard, demanding that each inode can have it's own layout-info, device-table, and each object component it's own pid, oid and creds. So: Bring exofs raid engine to be usable for generic pnfs-objects use by: * Define an exofs_comp structure that holds obj_id and credential info. * Break up exofs_layout struct to an exofs_components structure that holds a possible array of exofs_comp and the array of devices + the size of the arrays. * Add a "comps" parameter to get_io_state() that specifies the ids creds and device array to use for each IO. This enables to keep the layout global, but the device-table view, creds and IDs at the inode level. It only adds two 64bit to each inode, since some of these members already existed in another form. * ios raid engine now access layout-info and comps-info through the passed pointers. Everything is pre-prepared by caller for generic access of these structures and arrays. At the exofs Level: * Super block holds an exofs_components struct that holds the device array, previously in layout. The devices there are in device-table order. The device-array is twice bigger and repeats the device-table twice so now each inode's device array can point to a random device and have a round-robin view of the table, making it compatible to previous exofs versions. * Each inode has an exofs_components struct that is initialized at load time, with it's own view of the device table IDs and creds. When doing IO this gets passed to the io_state together with the layout. While preforming this change. Bugs where found where credentials with the wrong IDs where used to access the different SB objects (super.c). As well as some dead code. It was never noticed because the target we use does not check the credentials. Signed-off-by: Boaz Harrosh <bharrosh@panasas.com>
2011-08-06exofs: Move exofs specific osd operations out of ios.cBoaz Harrosh4-73/+79
ios.c will be moving to an external library, for use by the objects-layout-driver. Remove from it some exofs specific functions. Also g_attr_logical_length is used both by inode.c and ios.c move definition to the later, to keep it independent Signed-off-by: Boaz Harrosh <bharrosh@panasas.com>
2011-08-06exofs: Add offset/length to exofs_get_io_stateBoaz Harrosh3-16/+38
In future raid code we will need to know the IO offset/length and if it's a read or write to determine some of the array sizes we'll need. So add a new exofs_get_rw_state() API for use when writeing/reading. All other simple cases are left using the old way. The major change to this is that now we need to call exofs_get_io_state later at inode.c::read_exec and inode.c::write_exec when we actually know these things. So this patch is kept separate so I can test things apart from other changes. Signed-off-by: Boaz Harrosh <bharrosh@panasas.com>
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