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2010-07-05MIPS: BCM47xx: Add NVRAM support devicesWaldemar Brodkorb4-13/+158
When trying to netboot a Linksys WRT54GS WLAN router, the bootup fails, because of following error message: ... [ 0.424000] b44: b44.c:v2.0 [ 0.424000] b44: Invalid MAC address found in EEPROM [ 0.432000] b44 ssb0:1: Problem fetching invariants of chip,aborting [ 0.436000] b44: probe of ssb0:1 failed with error -22 ... The router uses a CFE bootloader, but most of the needed environment variables for network card initialization, are not available from CFE via printenv and even though not via cfe_getenv(). The required environment variables are saved in a special partition in flash memory. The attached patch implement nvram_getenv and enables bootup via NFS root on my router. Most of the patch is extracted from the OpenWrt subversion repository and stripped down and cleaned up to just fix this issue. [Ralf: sorted out header file inclusions. Lots of unneded headers and such that should have been included.] Signed-off-by: Waldemar Brodkorb <wbx@openadk.org> Reviewed-by: Phil Sutter <phil@nwl.cc> To: linux-mips@linux-mips.org Cc: Hauke Mehrtens <hauke@hauke-m.de> Patchwork: http://patchwork.linux-mips.org/patch/1359/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2010-07-05MIPS: Loongson: Define rtc device on MC146818-equipped systemsArnaud Patard3-0/+50
This patch declare the rtc device present on systems with clock compatible with the mc146818 and handled by rtc-cmos. Introduce a new Kconfig entry because there are some systems without rtc_cmos compatible clock. Signed-off-by: Arnaud Patard <apatard@mandriva.com> To: linux-mips@linux-mips.org Cc: aba@not.so.argh.org Patchwork: http://patchwork.linux-mips.org/patch/1320/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2010-07-05MIPS: MT: Fix FPU affinity.Ralf Baechle1-26/+61
The fragile MT sys_sched_setaffinity wrapper needs its regular dose of fixes. Nose-poked-at-pile-o-crap-by: Julia Lawall <julia@diku.dk> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2010-07-05MIPS: Oprofile: Fixup of loongson2_exit()Wu Zhangjin1-1/+7
When exiting from loongson2_exit(), we need to reset the counter register too, this patch adds a function reset_counters() to do it, by the way, this function will be shared by Perf. Signed-off-by: Wu Zhangjin <wuzhangjin@gmail.com> Cc: linux-mips@linux-mips.org Patchwork: http://patchwork.linux-mips.org/patch/1199/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2010-07-05MIPS: Alchemy: sleepcode without compile-time cputype dependenciesManuel Lauss3-32/+64
Split the low-level sleepcode into per-cpu functions instead of relying on compile-time-defined cpu type. Signed-off-by: Manuel Lauss <manuel.lauss@gmail.com> To: Linux-MIPS <linux-mips@linux-mips.org> Patchwork: http://patchwork.linux-mips.org/patch/1281/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2010-07-05MIPS: Tracing: Cleanup of address space checkingWu Zhangjin1-3/+19
This patch adds an inline function in_module() to check which space the instruction pointer in, kernel space or module space. Note: This will not work when the kernel space and module space are the same. If they are the same, we need to modify scripts/recordmcount.pl, ftrace_make_nop/call() and the other related parts to ensure the enabling/disabling of the calling site to _mcount is right for both kernel and module. [Ralf: It also is still incorrect for some 64-bit kernels.] Signed-off-by: Wu Zhangjin <wuzhangjin@gmail.com> Cc: linux-mips <linux-mips@linux-mips.org> Cc: David Daney <david.s.daney@gmail.com> Patchwork: http://patchwork.linux-mips.org/patch/1232/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2010-07-05MIPS: Tracing: Cleanup of function graph tracerWu Zhangjin1-22/+26
Cleans up comments and ftrace_get_parent_addr() of function graph tracer. Signed-off-by: Wu Zhangjin <wuzhangjin@gmail.com> Cc: linux-mips <linux-mips@linux-mips.org> Cc: David Daney <david.s.daney@gmail.com> Patchwork: http://patchwork.linux-mips.org/patch/1231/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2010-07-05MIPS: Tracing: Reduce the overhead of dynamic Function TracerWu Zhangjin1-44/+49
With the help of uasm this patch encodes the instructions of the dynamic function tracer in ftrace_dyn_arch_init() when initializing it. As a result we can remove the dynamic encoding of instructions in ftrace_make_nop()/call(), ftrace_enable_ftrace_graph_caller() and remove the macro jump_insn_encode() and at last this reduce the overhead of dynamic Function Tracer. This also is cleaner. Signed-off-by: Wu Zhangjin <wuzhangjin@gmail.com> Cc: linux-mips <linux-mips@linux-mips.org> Cc: David Daney <david.s.daney@gmail.com> Patchwork: http://patchwork.linux-mips.org/patch/1230/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2010-07-05MIPS: Tracing: Cleanup of instructions usedWu Zhangjin1-8/+11
This patch adds some cleanups of the instructions: o use macros instead of magic numbers o use macros instead of variables to reduce some overhead o add new macro for the jal instruction Signed-off-by: Wu Zhangjin <wuzhangjin@gmail.com> Cc: linux-mips <linux-mips@linux-mips.org> Cc: David Daney <david.s.daney@gmail.com> Patchwork: http://patchwork.linux-mips.org/patch/1229/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2010-07-05MIPS: Tracing: Fix 32-bit support with -mmcount-ra-addressWu Zhangjin1-2/+14
For 32-bit kernel the -mmcount-ra-address option of gcc 4.5 emits one extra instruction before calling to _mcount so we need to use a different "b 1f" for it. Signed-off-by: Wu Zhangjin <wuzhangjin@gmail.com> Cc: linux-mips <linux-mips@linux-mips.org> Cc: David Daney <david.s.daney@gmail.com> Patchwork: http://patchwork.linux-mips.org/patch/1228/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2010-07-05MIPS: Tracing: Fix argument passing of the 32bit support with gcc 4.5Wu Zhangjin1-3/+9
As documented in the GCC 4.5 docs [1] -mmcount-ra-address uses register $12 to pass the stack offset of the return address to the _mcount function. On 64-bit kernels $12 is t0 but in 32-bit kernels it is t4 so we need to use $12 instead of t0 here to be correct for both kernel types. [1] GCC documentation: MIPS Options http://gcc.gnu.org/onlinedocs/gcc/MIPS-Options.html Signed-off-by: Wu Zhangjin <wuzhangjin@gmail.com> Cc: linux-mips <linux-mips@linux-mips.org> Cc: David Daney <david.s.daney@gmail.com> Patchwork: http://patchwork.linux-mips.org/patch/1227/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2010-07-05MIPS: Tracing: Cleanup commentsWu Zhangjin1-5/+6
Signed-off-by: Wu Zhangjin <wuzhangjin@gmail.com> Cc: linux-mips <linux-mips@linux-mips.org> Cc: David Daney <david.s.daney@gmail.com> Patchwork: http://patchwork.linux-mips.org/patch/1225/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2010-07-05MIPS: Tracing: Cleanup the arguments passing of prepare_ftrace_returnWu Zhangjin1-14/+22
Signed-off-by: Wu Zhangjin <wuzhangjin@gmail.com> Cc: linux-mips <linux-mips@linux-mips.org> Cc: David Daney <david.s.daney@gmail.com> Patchwork: http://patchwork.linux-mips.org/patch/1226/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2010-07-05MIPS: Tracing: Merge adjacent #ifdefs with same condition.Wu Zhangjin1-2/+0
Signed-off-by: Wu Zhangjin <wuzhangjin@gmail.com> Cc: linux-mips <linux-mips@linux-mips.org> Cc: David Daney <david.s.daney@gmail.com> Patchwork: http://patchwork.linux-mips.org/patch/1224/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2010-07-05MIPS: AR7, BCM63xx: fix gpio_to_irq() return valueYoichi Yuasa2-2/+2
The return value of gpio_to_irq() is not a pointer but an integer. Signed-off-by: Yoichi Yuasa <yuasa@linux-mips.org> Cc: linux-mips <linux-mips@linux-mips.org> Patchwork: http://patchwork.linux-mips.org/patch/1280/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2010-07-05MIPS: Restore signalling NaN behaviour for abs.[sd]Chris Dearman2-0/+2
Atsushi Nemoto <anemo@mba.ocn.ne.jp> spotted that this had been incorrectly removed in a previous patch Signed-off-by: Chris Dearman <chris@mips.com> To: linux-mips@linux-mips.org Patchwork: http://patchwork.linux-mips.org/patch/1213/ Tested-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2010-07-05MIPS: Loongson: CS5536: Fix ISA supportWu Zhangjin1-2/+2
The function _wrmsr() called by divil_lbar_disable()/enable() should be called with the offset as the argument. Signed-off-by: Wu Zhangjin <wuzhangjin@gmail.com> Cc: linux-mips@linux-mips.org Cc: Zhang Le <r0bertz@gentoo.org> Patchwork: http://patchwork.linux-mips.org/patch/1252/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2010-07-05MIPS: Loongson: Add a missing break statement in CS5536 IDE codeWu Zhangjin1-0/+1
Signed-off-by: Wu Zhangjin <wuzhangjin@gmail.com> Cc: linux-mips@linux-mips.org Cc: Zhang Le <r0bertz@gentoo.org> Cc: Hu Hongbing <huhb@lemote.com> Patchwork: http://patchwork.linux-mips.org/patch/1251/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2010-07-05MIPS: Loongson: CS5536: Add missing RDMSRs for IDE and USBWu Zhangjin3-1/+17
Add several missing RDMSRs for IDE and USB are missing to avoid the agressive modification of the high 32 bits of the MSR. Without this patch some usb devices may fail after printing "reset ehci host ....." when reading the partition information. Signed-off-by: Hu Hongbing <huhb@lemote.com> Signed-off-by: Wu Zhangjin <wuzhangjin@gmail.com> Cc: linux-mips@linux-mips.org Cc: Zhang Le <r0bertz@gentoo.org> Cc: Hu Hongbing <huhb@lemote.com> Patchwork: http://patchwork.linux-mips.org/patch/1250/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2010-07-05MIPS: AR7: Fix typo in ar7.hFlorian Fainelli1-3/+3
This fixes a typo on the AR7_RESET_PERIPHERAL define. Signed-off-by: Florian Fainelli <florian@openwrt.org> To: linux-mips@linux-mips.org Patchwork: http://patchwork.linux-mips.org/patch/1247/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2010-07-05MIPS: AR7: Use correct UART port typeFlorian Fainelli1-1/+1
PORT_AR7 has the correct TRIG flag (UART_FCR_R_TRIG_00) as well as UART_CAP_AFE being set. This fixes UART on TNETD7300 revision 0x02, which would otherwise mangle some characters, no side effects on other revisions. Signed-off-by: Florian Fainelli <florian@openwrt.org> To: linux-mips@linux-mips.org Patchwork: http://patchwork.linux-mips.org/patch/1246/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2010-06-29fs: fix superblock iteration racenpiggin@suse.de3-0/+23
list_for_each_entry_safe is not suitable to protect against concurrent modification of the list. 6754af6 introduced a race in sb walking. list_for_each_entry can use the trick of pinning the current entry in the list before we drop and retake the lock because it subsequently follows cur->next. However list_for_each_entry_safe saves n=cur->next for following before entering the loop body, so when the lock is dropped, n may be deleted. Signed-off-by: Nick Piggin <npiggin@suse.de> Cc: Christoph Hellwig <hch@infradead.org> Cc: John Stultz <johnstul@us.ibm.com> Cc: Frank Mayhar <fmayhar@google.com> Cc: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-06-28acpi: update gfp/slab.h includesTejun Heo2-0/+2
Implicit slab.h inclusion via percpu.h is about to go away. Make sure gfp.h or slab.h is included as necessary. Signed-off-by: Tejun Heo <tj@kernel.org> Cc: Stephen Rothwell <sfr@canb.auug.org.au> Cc: Len Brown <lenb@kernel.org> Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
2010-06-28ocfs2: update gfp/slab.h includesTejun Heo1-1/+0
Implicit slab.h inclusion via percpu.h is about to go away. Make sure gfp.h or slab.h is included as necessary. Signed-off-by: Tejun Heo <tj@kernel.org> Cc: Stephen Rothwell <sfr@canb.auug.org.au> Cc: Joel Becker <joel.becker@oracle.com> Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
2010-06-28davinci: update gfp/slab.h includesTejun Heo1-0/+1
Implicit slab.h inclusion via percpu.h is about to go away. Make sure gfp.h or slab.h is included as necessary. Signed-off-by: Tejun Heo <tj@kernel.org> Cc: Stephen Rothwell <sfr@canb.auug.org.au> Cc: Kevin Hilman <khilman@deeprootsystems.com> Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
2010-06-28arm: update gfp/slab.h includesTejun Heo1-0/+1
Implicit slab.h inclusion via percpu.h is about to go away. Make sure gfp.h or slab.h is included as necessary. Signed-off-by: Tejun Heo <tj@kernel.org> Cc: Stephen Rothwell <sfr@canb.auug.org.au> Cc: Russell King <linux@arm.linux.org.uk> Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
2010-06-28v4l-dvb: update gfp/slab.h includesTejun Heo4-0/+4
Implicit slab.h inclusion via percpu.h is about to go away. Make sure gfp.h or slab.h is included as necessary. Signed-off-by: Tejun Heo <tj@kernel.org> Cc: Stephen Rothwell <sfr@canb.auug.org.au> Cc: Mauro Carvalho Chehab <mchehab@infradead.org> Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
2010-06-27KEYS: Propagate error code instead of returning -EINVALDan Carpenter1-2/+2
This is from a Smatch check I'm writing. strncpy_from_user() returns -EFAULT on error so the first change just silences a warning but doesn't change how the code works. The other change is a bug fix because install_thread_keyring_to_cred() can return a variety of errors such as -EINVAL, -EEXIST, -ENOMEM or -EKEYREVOKED. Signed-off-by: Dan Carpenter <error27@gmail.com> Signed-off-by: David Howells <dhowells@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-06-26phylib: Add autoload support for the LXT973 phy.David Woodhouse1-0/+1
Commit e13647c1 (phylib: Add support for the LXT973 phy.) added a new ID but neglected to also add it to the MODULE_DEVICE_TABLE. Signed-off-by: David Woodhouse <David.Woodhouse@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-06-26ISDN: hysdn, fix potential NULL dereferenceJiri Slaby1-1/+2
Stanse found that lp is dereferenced earlier than checked for being NULL in hysdn_rx_netpkt. Move the initialization below the test. Signed-off-by: Jiri Slaby <jslaby@suse.cz> Cc: Karsten Keil <isdn@linux-pingi.de> Cc: "David S. Miller" <davem@davemloft.net> Cc: Stephen Hemminger <shemminger@vyatta.com> Cc: Patrick McHardy <kaber@trash.net> Cc: netdev@vger.kernel.org Signed-off-by: David S. Miller <davem@davemloft.net>
2010-06-26vxge: fix memory leak in vxge_alloc_msix() error pathMichal Schmidt1-9/+20
When pci_enable_msix() returned ret<0, entries and vxge_entries were leaked. While at it, use the centralized exit idiom in the function. Signed-off-by: Michal Schmidt <mschmidt@redhat.com> Acked-by: Ram Vepa <ram.vepa@exar.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-06-25isdn/gigaset: correct CAPI connection state storageTilman Schmidt3-53/+180
CAPI applications can handle several connections in parallel, so one connection state per application isn't sufficient. Store the connection state in the channel structure instead. Impact: bugfix Signed-off-by: Tilman Schmidt <tilman@imap.cc> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-06-25isdn/gigaset: encode HLC and BC togetherTilman Schmidt3-38/+52
Adapt to buggy device firmware which accepts setting HLC only in the same command line as BC, by encoding HLC and BC in a single command if both are specified, and rejecting HLC without BC. Impact: bugfix Signed-off-by: Tilman Schmidt <tilman@imap.cc> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-06-25isdn/gigaset: correct CAPI DATA_B3 Delivery ConfirmationTilman Schmidt1-32/+51
The Gigaset CAPI driver handled all DATA_B3_REQ messages as if the Delivery Confirmation flag bit was set, delaying the emission of the DATA_B3_CONF reply until the data was actually transmitted. Some CAPI applications (notably Asterisk) aren't happy with that behaviour. Change it to actually evaluate the Delivery Confirmation flag as described the CAPI specification. Impact: bugfix Signed-off-by: Tilman Schmidt <tilman@imap.cc> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-06-25isdn/gigaset: correct CAPI voice connection encodingTilman Schmidt1-4/+4
Make the Gigaset CAPI driver select L2_VOICE (AT^SBPR=2) as the layer 2 encoding for transparent connections, like the ISDN4Linux variant. L2_BITSYNC (AT^SBPR=0) mutes internal connections and distorts external ones. Impact: bugfix Signed-off-by: Tilman Schmidt <tilman@imap.cc> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-06-25isdn/gigaset: honor CAPI application's buffer size requestTilman Schmidt6-112/+94
Fix the Gigaset CAPI driver to limit the length of a connection's payload data receive buffers to the corresponding CAPI application's data buffer size, as some real-life CAPI applications tend to be rather unhappy if they receive bigger data blocks than requested. Impact: bugfix Signed-off-by: Tilman Schmidt <tilman@imap.cc> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-06-25cpmac: do not leak struct net_device on phy_connect errorsFlorian Fainelli1-1/+2
If the call to phy_connect fails, we will return directly instead of freeing the previously allocated struct net_device. Signed-off-by: Florian Fainelli <florian@openwrt.org> CC: stable@kernel.org Signed-off-by: David S. Miller <davem@davemloft.net>
2010-06-25smc91c92_cs: fix the problem that lan & modem does not work simultaneouslyKen Kawasaki1-5/+13
smc91c92_cs: Fix the problem that lan & modem does not work simultaneously in the Megahertz multi-function card. We need to write MEGAHERTZ_ISR to retrigger interrupt. Signed-off-by: Ken Kawasaki <ken_kawasaki@spring.nifty.jp> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-06-25ipv6: fix NULL reference in proxy neighbor discoverystephen hemminger1-1/+1
The addition of TLLAO option created a kernel OOPS regression for the case where neighbor advertisement is being sent via proxy path. When using proxy, ipv6_get_ifaddr() returns NULL causing the NULL dereference. Change causing the bug was: commit f7734fdf61ec6bb848e0bafc1fb8bad2c124bb50 Author: Octavian Purdila <opurdila@ixiacom.com> Date: Fri Oct 2 11:39:15 2009 +0000 make TLLAO option for NA packets configurable Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Acked-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-06-25x86, Calgary: Increase max PHB numberDarrick J. Wong1-5/+10
Newer systems (x3950M2) can have 48 PHBs per chassis and 8 chassis, so bump the limits up and provide an explanation of the requirements for each class. Signed-off-by: Darrick J. Wong <djwong@us.ibm.com> Acked-by: Muli Ben-Yehuda <muli@il.ibm.com> Cc: Corinna Schultz <cschultz@linux.vnet.ibm.com> Cc: <stable@kernel.org> LKML-Reference: <20100624212647.GI15515@tux1.beaverton.ibm.com> [ v2: Fixed build bug, added back PHBS_PER_CALGARY == 4 ] Signed-off-by: Ingo Molnar <mingo@elte.hu>
2010-06-25sched: Prevent compiler from optimising the sched_avg_update() loopWill Deacon1-0/+6
GCC 4.4.1 on ARM has been observed to replace the while loop in sched_avg_update with a call to uldivmod, resulting in the following build failure at link-time: kernel/built-in.o: In function `sched_avg_update': kernel/sched.c:1261: undefined reference to `__aeabi_uldivmod' kernel/sched.c:1261: undefined reference to `__aeabi_uldivmod' make: *** [.tmp_vmlinux1] Error 1 This patch introduces a fake data hazard to the loop body to prevent the compiler optimising the loop away. Signed-off-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Acked-by: Peter Zijlstra <peterz@infradead.org> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Russell King <rmk@arm.linux.org.uk> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: <stable@kernel.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2010-06-24Bluetooth: Bring back var 'i' incrementGustavo F. Padovan1-0/+2
commit ff6e2163f28a1094fb5ca5950fe2b43c3cf6bc7a accidentally added a regression on the bnep code. Fixing it. Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-06-24MAINTAINERS - Add an entry for the input MT protocolHenrik Rydberg1-0/+7
This patch adds a maintainer for the input multitouch (MT) protocol, such that get_maintainer.pl selects it whenever an MT event is present in the patch. Signed-off-by: Henrik Rydberg <rydberg@euromail.se> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2010-06-25ext3: update ctime when changing the file's permission by setfaclMiao Xie1-0/+1
ext3 didn't update the ctime of the file when its permission was changed. Steps to reproduce: # touch aaa # stat -c %Z aaa 1275289822 # setfacl -m 'u::x,g::x,o::x' aaa # stat -c %Z aaa 1275289822 <- unchanged But, according to the spec of the ctime, ext3 must update it. Signed-off-by: Miao Xie <miaox@cn.fujitsu.com> Signed-off-by: Jan Kara <jack@suse.cz>
2010-06-25ext2: update ctime when changing the file's permission by setfaclJan Kara1-0/+1
ext2 didn't update the ctime of the file when its permission was changed. Steps to reproduce: # touch aaa # stat -c %Z aaa 1275289822 # setfacl -m 'u::x,g::x,o::x' aaa # stat -c %Z aaa 1275289822 <- unchanged But, according to the spec of the ctime, ext2 must update it. Port of ext3 patch by Miao Xie <miaox@cn.fujitsu.com>. Signed-off-by: Jan Kara <jack@suse.cz>
2010-06-24xfrm: check bundle policy existance before dereferencing itTimo Teräs1-1/+2
Fix the bundle validation code to not assume having a valid policy. When we have multiple transformations for a xfrm policy, the bundle instance will be a chain of bundles with only the first one having the policy reference. When policy_genid is bumped it will expire the first bundle in the chain which is equivalent of expiring the whole chain. Reported-bisected-and-tested-by: Justin P. Mattock <justinmattock@gmail.com> Signed-off-by: Timo Teräs <timo.teras@iki.fi> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-06-24block: Don't count_vm_events for discard bio in submit_bio.Tao Ma1-1/+1
In submit_bio, we count vm events by check READ/WRITE. But actually DISCARD_NOBARRIER also has the WRITE flag set. It looks as if in blkdev_issue_discard, we also add a page as the payload and the bio_has_data check isn't enough. So add another check for discard bio. Signed-off-by: Tao Ma <tao.ma@oracle.com> Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
2010-06-24md/raid5: don't include 'spare' drives when reshaping to fewer devices.NeilBrown1-2/+7
There are few situations where it would make any sense to add a spare when reducing the number of devices in an array, but it is conceivable: A 6 drive RAID6 with two missing devices could be reshaped to a 5 drive RAID6, and a spare could become available just in time for the reshape, but not early enough to have been recovered first. 'freezing' recovery can make this easy to do without any races. However doing such a thing is a bad idea. md will not record the partially-recovered state of the 'spare' and when the reshape finished it will think that the spare is still spare. Easiest way to avoid this confusion is to simply disallow it. Signed-off-by: NeilBrown <neilb@suse.de>
2010-06-24md/raid5: add a missing 'continue' in a loop.NeilBrown1-1/+3
As the comment says, the tail of this loop only applies to devices that are not fully in sync, so if In_sync was set, we should avoid the rest of the loop. This bug will hardly ever cause an actual problem. The worst it can do is allow an array to be assembled that is dirty and degraded, which is not generally a good idea (without warning the sysadmin first). This will only happen if the array is RAID4 or a RAID5/6 in an intermediate state during a reshape and so has one drive that is all 'parity' - no data - while some other device has failed. This is certainly possible, but not at all common. Signed-off-by: NeilBrown <neilb@suse.de>
2010-06-24md/raid5: Allow recovered part of partially recovered devices to be in-syncNeilBrown1-12/+30
During a recovery of reshape the early part of some devices might be in-sync while the later parts are not. We we know we are looking at an early part it is good to treat that part as in-sync for stripe calculations. This is particularly important for a reshape which suffers device failure. Treating the data as in-sync can mean the difference between data-safety and data-loss. Signed-off-by: NeilBrown <neilb@suse.de>
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