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2010-02-26ocfs2: Add a name_len field to ocfs2_xattr_info.Joel Becker
Rather than calculating strlen all over the place, let's store the name length directly on ocfs2_xattr_info. Signed-off-by: Joel Becker <joel.becker@oracle.com>
2010-02-26ocfs2: Prefix the member fields of struct ocfs2_xattr_info.Joel Becker
struct ocfs2_xattr_info is a useful structure describing an xattr you'd like to set. Let's put prefixes on the member fields so it's easier to read and use. Signed-off-by: Joel Becker <joel.becker@oracle.com>
2010-02-26ocfs2: Remove xattrs via ocfs2_xa_locJoel Becker
Add ocfs2_xa_remove_entry(), which will remove an xattr entry from its storage via the ocfs2_xa_loc descriptor. Signed-off-by: Joel Becker <joel.becker@oracle.com>
2010-02-26ocfs2: Introduce ocfs2_xa_locJoel Becker
The ocfs2 extended attribute (xattr) code is very flexible. It can store xattrs in the inode itself, in an external block, or in a tree of data structures. This allows the number of xattrs to be bounded by the filesystem size. However, the code that manages each possible storage location is different. Maintaining the ocfs2 xattr code requires changing each hunk separately. This patch is the start of a series introducing the ocfs2_xa_loc structure. This structure wraps the on-disk details of an xattr entry. The goal is that the generic xattr routines can use ocfs2_xa_loc without knowing the underlying storage location. This first pass merely implements the basic structure, initializing it, and wiping the name+value pair of the entry. Signed-off-by: Joel Becker <joel.becker@oracle.com>
2010-02-26ocfs2: Add current->comm in trace outputSunil Mushran
Add current->comm to the standard mlog() output to help with debugging. Signed-off-by: Sunil Mushran <sunil.mushran@oracle.com> Signed-off-by: Joel Becker <joel.becker@oracle.com>
2010-02-26ocfs2: Clean up the checks for CoW and direct I/O.Wengang Wang
When ocfs2 has to do CoW for refcounted extents, we disable direct I/O and go through the buffered I/O path. This makes the combined check easier to read. Signed-off-by: Wengang Wang <wen.gang.wang@oracle.com> Signed-off-by: Joel Becker <joel.becker@oracle.com>
2010-02-26ocfs2: add extent block stealing for ocfs2 v5Tiger Yang
This patch add extent block (metadata) stealing mechanism for extent allocation. This mechanism is same as the inode stealing. if no room in slot specific extent_alloc, we will try to allocate extent block from the next slot. Signed-off-by: Tiger Yang <tiger.yang@oracle.com> Acked-by: Tao Ma <tao.ma@oracle.com> Signed-off-by: Joel Becker <joel.becker@oracle.com>
2010-02-26omap2: Initialize Menelaus and MMC for N8X0Tony Lindgren
Initialize MMC for N8X0 Based on an earlier patches from Nokia released kernel sources at: http://repository.maemo.org/pool/os2008/free/source/k/kernel-source-rx-34/ Signed-off-by: Tony Lindgren <tony@atomide.com>
2010-02-26sunrpc: remove unnecessary svc_xprt_putNeil Brown
The 'struct svc_deferred_req's on the xpt_deferred queue do not own a reference to the owning xprt. This is seen in svc_revisit which is where things are added to this queue. dr->xprt is set to NULL and the reference to the xprt it put. So when this list is cleaned up in svc_delete_xprt, we mustn't put the reference. Also, replace the 'for' with a 'while' which is arguably simpler and more likely to compile efficiently. Cc: Tom Tucker <tom@opengridcomputing.com> Signed-off-by: NeilBrown <neilb@suse.de> Cc: stable@kernel.org Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
2010-02-26b43: fall back gracefully to PIO mode after fatal DMA errorsLinus Torvalds
This makes the b43 driver just automatically fall back to PIO mode when DMA doesn't work. The driver already told the user to do it, so rather than have the user reload the module with a new flag, just make the driver do it automatically. We keep the message as an indication that something is wrong, but now just automatically fall back to the hopefully working PIO case. (Some post-2.6.33 merge fixups by Larry Finger <Larry.Finger@lwfinger.net> and yours truly... -- JWL) Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-02-26mac80211: fix direct probe loop on ieee80211_work_purgeJuuso Oikarinen
If authentication has already been performed when the WLAN interface is stopped, (sometimes) the ieee80211_work_purge would corrupt some ieee80211_work-structures. The outcome is this (cleaned up): [ 2252.398681] WARNING: at net/mac80211/work.c:995 ieee80211_work_purge [ 2252.466430] Backtrace: [ 2252.529266] (ieee80211_work_purge+0x0/0xcc [mac80211]) [ 2252.546875] (ieee80211_stop+0x0/0x4c0 [mac80211]) Additionally, one would get this, going on regarless of the WLAN interface state, going on forever: [ 2252.859985] wlan0: direct probe to 00:90:4c:60:04:00 (try -996717525) [ 2253.055419] wlan0: direct probe to 00:90:4c:60:04:00 (try -996717524) [ 2253.250610] wlan0: direct probe to 00:90:4c:60:04:00 (try -996717523) [ 2253.446014] wlan0: direct probe to 00:90:4c:60:04:00 (try -996717522) [ 2253.641357] wlan0: direct probe to 00:90:4c:60:04:00 (try -996717521) Signed-off-by: Juuso Oikarinen <juuso.oikarinen@nokia.com> Reviewed-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-02-26netdevice.h: check for CONFIG_WLAN instead of CONFIG_WLAN_80211John W. Linville
In "wireless: remove WLAN_80211 and WLAN_PRE80211 from Kconfig" I inadvertantly missed a line in include/linux/netdevice.h. I thereby effectively reverted "net: Set LL_MAX_HEADER properly for wireless." by accident. :-( Now we should check there for CONFIG_WLAN instead. Signed-off-by: John W. Linville <linville@tuxdriver.com> Reported-by: Christoph Egger <siccegge@stud.informatik.uni-erlangen.de> Cc: stable@kernel.org
2010-02-26mac80211: use listen interval 5 as defaultHelmut Schaa
Currently if a driver does not set hw.max_listen_interval a listen interval of 1 is negotiated with the AP. Thus, the AP could drop buffered frames for us after just one beacon interval which can easily happen with the current powersave and scan implementation. To avoid this issue increase the default interval to 5 which should be a reasonable safe default. Signed-off-by: Helmut Schaa <helmut.schaa@googlemail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-02-26ath9k: disable RIFS search for AR91xx based chipsFelix Fietkau
While ath9k does not support RIFS yet, the ability to receive RIFS frames is currently enabled for most chipsets in the initvals. This is causing baseband related issues on AR9160 and AR9130 based chipsets, which can lock up under certain conditions. This patch fixes these issues by overriding the initvals, effectively disabling RIFS for all affected chipsets. Signed-off-by: Felix Fietkau <nbd@openwrt.org> Cc: stable@kernel.org Acked-by: Luis R. Rodriguez <lrodriguez@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-02-26MAINTAINERS: update mwl8k maintenance statusLennert Buytenhek
I am no longer with Marvell. Signed-off-by: Lennert Buytenhek <buytenh@wantstofly.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-02-26Merge branch 'wireless-next-2.6' of ↵John W. Linville
git://git.kernel.org/pub/scm/linux/kernel/git/iwlwifi/iwlwifi-2.6
2010-02-26Merge branch 'wireless-2.6' of ↵John W. Linville
git://git.kernel.org/pub/scm/linux/kernel/git/iwlwifi/iwlwifi-2.6
2010-02-26Merge branch 'master' of ↵John W. Linville
git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-2.6 Conflicts: drivers/net/wireless/iwlwifi/iwl-core.h net/mac80211/rate.c
2010-02-26[S390] time: remove unused codeHeiko Carstens
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2010-02-26[S390] zcore: Add prefix registers to dump headerMichael Holzheu
With this patch the prefix registers of all online CPUs are stored in the the zcore dump header. This allows dump analysis tools to access the register information that is stored in the prefix pages without using the System.map. Signed-off-by: Michael Holzheu <holzheu@linux.vnet.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2010-02-26[S390] correct vdso version stringMartin Schwidefsky
The glibc vdso code for s390 uses the version string 2.6.29, the kernel uses the version string 2.6.26. No wonder the vdso code is never used. The first kernel version to contain the vdso code is 2.6.29 which makes this the correct version. Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2010-02-26[S390] add support for compressed kernelsMartin Schwidefsky
Add the "bzImage" compile target and the necessary code to generate compressed kernel images. The old style uncompressed "image" target is preserved, a simple make will build them both. Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2010-02-26[S390] Define new s390 ELF note sections in elf.hMichael Holzheu
S390 ELF core dump currently only contains the PSW, the general purpose registers, the floating point registers and the access registers stored in PRSTATUS/PRFPREG note sections. For analyzing s390 kernel problems additional registers are important. In order to be able to include these registers to a kernel ELF core dump, this patch adds the following five new note sections to elf.h: * NT_S390_TIMER: S390 timer register * NT_S390_TODCMP: S390 TOD comparator register * NT_S390_TODPREG: S390 TOD programmable register * NT_S390_CTRS: S390 control registers * NT_S390_PREFIX: S390 prefix register The new note sections have been already defined and accepted in the upstream binutils package. Signed-off-by: Michael Holzheu <holzheu@linux.vnet.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2010-02-26[S390] codepage conversion of kernel parameter lineMartin Schwidefsky
Move the ebcdic to ascii conversion of the kernel parameter line from head.S to early.c and convert the assembler code to C. Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2010-02-26[S390] seq_file: convert drivers/s390/Alexey Dobriyan
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2010-02-26[S390] add z9-ec/z10 instruction to kernel disassemblerMartin Schwidefsky
Add the instruction of the z9-ec and z10 machines to the kernel disassembler. Add the missing "ptff" instruction of z9-109 and the missing "sqd" of g5. Remove useless comments with instruction examples from format table. Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2010-02-26[S390] dasd: correct offline processingStefan Haberland
Flushing the dasd ccw request queue may stop the processing of the block device request queue. Destroy partitions may wait for outstanding requests and thus hang. Swapping dasd_destroy_partitions and dasd_flush_request_queue so that the request queue is empty before dasd_destroy_partitions is called. Signed-off-by: Stefan Haberland <stefan.haberland@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2010-02-26[S390] dasd: fix refcounting.Stefan Haberland
The function dasd_device_from_cdev returns a reference to the dasd device and increases the refcount by one. If an exception occurs, the refcount was not decreased in all cases e.g. in dasd_discipline_show. Prevent the offline processing from hang by correcting two functions to decrease the refcount even if an error occured. Signed-off-by: Stefan Haberland <stefan.haberland@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2010-02-26[S390] dasd: fix online/offline raceStefan Haberland
Setting a DASD online and offline in quick succession may cause a kernel panic or let the chhccwdev command wait forever. The Online process is split into two parts. After the first part is finished the offline process may be called. This may result in a situation where the second online processing part tries to set the DASD offline as well. Use a mutex to protect online and offline against each other. Also correct some checking. Signed-off-by: Stefan Haberland <stefan.haberland@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2010-02-26[S390] use kprobes_built_in() in mm/fault codeHeiko Carstens
Use kprobes_built_in() to avoid ifdefs like most other architectures do. Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2010-02-26[S390] bug: use relative pointers in bug table entriesHeiko Carstens
Reduces the size of the bug table entries by 50% on 64bit kernels. Saves around 30kb on a defconfig kernel. s390 version of b93a531e "allow bug table entries to use relative pointers (and use it on x86-64)". Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2010-02-26[S390] Cleanup struct _lowcore usage and defines.Heiko Carstens
Use asm offsets to make sure the offset defines to struct _lowcore and its layout don't get out of sync. Also add a BUILD_BUG_ON() which checks that the size of the structure is sane. And while being at it change those sites which use odd casts to access the current lowcore. These should use S390_lowcore instead. Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2010-02-26[S390] free_initmem: reduce code duplicationHeiko Carstens
free_initmem() and free_initrd_mem() are nearly identical. So make them call a common function. Also fixes a bug: if the initrd wouldn't start on a page boundary also memory after the initrd would be initialized with the poison value. Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2010-02-26[S390] Replace ENOTSUPP usage with EOPNOTSUPPHeiko Carstens
ENOTSUPP is not supposed to leak to userspace so lets just use EOPNOTSUPP everywhere. Doesn't fix a bug, but makes future reviews easier. Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2010-02-26[S390] spinlock: check virtual cpu running statusGerald Schaefer
This patch introduces a new function that checks the running status of a cpu in a hypervisor. This status is not virtualized, so the check is only correct if running in an LPAR. On acquiring a spinlock, if the cpu holding the lock is scheduled by the hypervisor, we do a busy wait on the lock. If it is not scheduled, we yield over to that cpu. Signed-off-by: Gerald Schaefer <gerald.schaefer@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2010-02-26[S390] sysinfo: fix SYSIB 3,2,2 structureHeiko Carstens
The size of the field that contains the description block count is only four bits instead of eight bits. The first four bits are reserved but this might change and break. Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2010-02-26[S390] add MACHINE_IS_LPAR flagMartin Schwidefsky
Introduce the MACHINE_IS_LPAR flag for code that should only be executed if Linux is running in an LPAR. Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2010-02-26[S390] qdio: optimize cache line usage of struct qdio_irqJan Glauber
Remove a memset hack that relied on the internal layout of the qdio_irq struct and move the per device statistics data into an own cache line to avoid cache line bashing between the inbound and the outbound queue tasklets. Also reduce the number of allocated queues from 32 to 4 which is the current maximum. That saves a cache line in struct qdio_irq. Signed-off-by: Jan Glauber <jang@linux.vnet.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2010-02-26[S390] qdio: account processed SBAL during queue scanJan Glauber
Add counters for the number of processed SBALs. The numbers summarize how many SBALs were processed at each queue scan and indicate the utilization of the queue. Furthermore the number of unsuccessfull queue scans, SBAL errors and the total number of processed SBALs are accounted. Also regroup struct qdio_q to move read-mostly and write-mostly data into different cachelines. Signed-off-by: Jan Glauber <jang@linux.vnet.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2010-02-26[S390] smp: rework sigp codeHeiko Carstens
Rename signal_processor* functions to sigp*. Add raw variants of each version, so we can get rid of the hacks played in smp code which establish temporary cpu logical mappings so they could call the sigp functions. Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2010-02-26[S390] smp: always reboot on cpu 0Heiko Carstens
Always reboot on logical cpu 0. This makes sure that the IPL cpu is always the same and usually avoids strange numbering schemes between physical and logical cpus. Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2010-02-26[S390] smp: rename and add lowcore definesHeiko Carstens
Rename __LC_RESTART_PSW to __LC_RST_NEW_PSW, add a define for the missing 32 bit variant and the missing old PSWs. Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2010-02-26[S390] zfcpdump: remove cross arch dump supportHeiko Carstens
Remove support to be able to dump 31 bit systems with a 64 bit dumper. This is mostly useless since no distro ships 31 bit kernels together with a 64 bit dumper. We also get rid of a bit of hacky code. Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2010-02-26[S390] use inline assembly contraints available with gcc 3.3.3Martin Schwidefsky
Drop support to compile the kernel with gcc versions older than 3.3.3. This allows us to use the "Q" inline assembly contraint on some more inline assemblies without duplicating a lot of complex code (e.g. __xchg and __cmpxchg). The distinction for older gcc versions can be removed which saves a few lines and simplifies the code. Reviewed-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2010-02-26[S390] cio: fix storage key handlingHeiko Carstens
Some parts of cio do not shift PAGE_DEFAULT_KEY correctly and end up with an incorrect key in their data structures. Since the default key is zero this doesn't really matter. However if somebody would use key-controlled protection for debugging purposes it would be quite helpful if all of this would work as expected. Also remove a stale declaration. Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2010-02-26[S390] cio: trigger subchannel event at resume timeSebastian Ott
ccw_device_pm_restore: trigger subchannel event to better handle changes to the subchannel device. Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2010-02-26[S390] ccw_device_notify: improve return codesSebastian Ott
Callers of ccw_device_notify could not distinguish between a driver who has no notifier registered and a driver who doesn't want to keep a device after a certain event. Change this by adding proper return codes. Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2010-02-26[S390] cio: make wait_events interruptibleSebastian Ott
Make the potentially long blocking wait_event's used by the cio settle mechanism interruptible. Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2010-02-26[S390] cio: wait for channel reportSebastian Ott
To fetch a pending channel report word (crw) we use a kernel thread which triggers stcrw and sleeps on a semaphore. The s390 machine check handler uses crw_handle_channel_report to handle one crw if needed. This patch replaces the semaphore with a waitqueue (to block the kernel thread) and an atomic_t (to count the number of pending requests). By this we achieve the ability to force this thread to check for a pending crw (independent on when it is triggered by the machine check handler) and wait for this action to finish. Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2010-02-26[S390] cio: introduce cio_settleSebastian Ott
This patch introduces a proc file cio_settle. A write request to this file is blocked until all queued cio actions are handled. This will allow userspace to wait for pending work affecting device availability after changing cio_ignore or the hardware configuration. Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
generated by cgit (git 2.34.1) at 2025-09-22 17:13:47 +0000