- 08 Aug, 2014 40 commits
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Joe Perches authored
Remove the now unnecessary memset too. Signed-off-by:
Joe Perches <joe@perches.com> Mike Miller <mike.miller@hp.com> Signed-off-by:
Andrew Morton <akpm@linux-foundation.org> Signed-off-by:
Linus Torvalds <torvalds@linux-foundation.org>
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Joe Perches authored
Remove the now unnecessary memset too. Signed-off-by:
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Joe Perches authored
Add this helper for consistency with pci_zalloc_coherent and the ability to remove unnecessary memset(,0,) uses. Signed-off-by:
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Daniel Walter authored
Replace obsolete strict_strto with more appropriate kstrto calls Signed-off-by:
Daniel Walter <dwalter@google.com> Cc: "James E.J. Bottomley" <JBottomley@parallels.com> Signed-off-by:
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Daniel Walter authored
Replace obsolete strict_strto calls with appropriate kstrto calls Signed-off-by:
Borislav Petkov <bp@suse.de> Cc: Ingo Molnar <mingo@elte.hu> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: Thomas Gleixner <tglx@linutronix.de> Signed-off-by:
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Daniel Walter authored
Replace strict_strto calls with more appropriate kstrto calls Signed-off-by:
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Daniel Walter authored
Replace obsolete strict_strto with kstrto calls Signed-off-by:
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Daniel Walter authored
Replace obsolete strict_strto call with kstrto Signed-off-by:
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Daniel Walter authored
Replace obsolete call to strict_strto with kstrto Signed-off-by:
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Daniel Walter authored
Replace obsolete strict_strto call with kstrto calls. Simplify copy_from_user/strict_strto by using kstrto_from_user Signed-off-by:
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Michael Opdenacker authored
- Invalid maintainer e-mail address: Mail server reply: Recipient address rejected: User unknown in virtual alias table - Remove no longer working webpage URL - Remove obsolete "Person" field - Move status to "Orphan" - Add Dave Jeffery and Jack Hammer to the CREDITS file Signed-off-by:
Michael Opdenacker <michael.opdenacker@free-electrons.com> Reviewed-by:
Jean Delvare <jdelvare@suse.de> Cc: David Jeffery <dhjeffery@gmail.com> Cc: James Bottomley <James.Bottomley@HansenPartnership.com> Cc: Paul Bolle <pebolle@tiscali.nl> Reviewed-by:
Jingoo Han <jg1.han@samsung.com> Signed-off-by:
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Joe Perches authored
These haven't had a single ack by the listed maintainer in all git history and the email addresses don't work. An EATA entry for Michael Neuffer is already in CREDITS. Signed-off-by:
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Richard Weinberger authored
roland@redhat.com bounces, change it to roland@hack.frob.com. Signed-off-by:
Richard Weinberger <richard@nod.at> Acked-by:
Roland McGrath <roland@hack.frob.com> Signed-off-by:
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Fabian Frederick authored
Fixing some checkpatch warnings(remove global initialization, move __initdata, coalesce formats ...) Signed-off-by:
Fabian Frederick <fabf@skynet.be> Signed-off-by:
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Ionut Alexa authored
Signed-off-by:
Ionut Alexa <ionut.m.alexa@gmail.com> Signed-off-by:
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Andy Lutomirski authored
The core mm code will provide a default gate area based on FIXADDR_USER_START and FIXADDR_USER_END if !defined(__HAVE_ARCH_GATE_AREA) && defined(AT_SYSINFO_EHDR). This default is only useful for ia64. arm64, ppc, s390, sh, tile, 64-bit UML, and x86_32 have their own code just to disable it. arm, 32-bit UML, and x86_64 have gate areas, but they have their own implementations. This gets rid of the default and moves the code into ia64. This should save some code on architectures without a gate area: it's now possible to inline the gate_area functions in the default case. Signed-off-by:
Andy Lutomirski <luto@amacapital.net> Acked-by:
Nathan Lynch <nathan_lynch@mentor.com> Acked-by:
H. Peter Anvin <hpa@linux.intel.com> Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> [in principle] Acked-by: Richard Weinberger <richard@nod.at> [for um] Acked-by: Will Deacon <will.deacon@arm.com> [for arm64] Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Will Deacon <will.deacon@arm.com> Cc: Tony Luck <tony.luck@intel.com> Cc: Fenghua Yu <fenghua.yu@intel.com> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: Heiko Carstens <heiko.carstens@de.ibm.com> Cc: Chris Metcalf <cmetcalf@tilera.com> Cc: Jeff Dike <jdike@addtoit.com> Cc: Richard Weinberger <richard@nod.at> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Ingo Molnar <mingo@redhat.com> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: Nathan Lynch <Nathan_Lynch@mentor.com> Signed-off-by:
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Fabian Frederick authored
This fixes checkpatch warning: WARNING: debugfs_remove(NULL) is safe this check is probably not required Signed-off-by:
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Konstantin Khlebnikov authored
This patch adds support for ARCH=x86 into checkstack. Commit ffee0de4 ("x86: Default to ARCH=x86 to avoid overriding CONFIG_64BIT") had merged ARCH=i386 and ARCH=x86_64 into one ARCH=x86. checkstack.pl searches patterns of machine instructions which are usually used for allocating stack frames. checkstalk.pl needs either i386 or x86_64, x86 isn't enough: $ make checkstack objdump -d vmlinux $(find . -name '*.ko') | \ perl linux/scripts/checkstack.pl x86 wrong or unknown architecture "x86" Signed-off-by:
Konstantin Khlebnikov <koct9i@gmail.com> Cc: David Woodhouse <dwmw2@infradead.org> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: Richard Weinberger <richard@nod.at> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by:
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Catalin Marinas authored
Since the kernel now has a COMPAT_SYSCALL infrastructure via commit 46836613 ("COMPAT_SYSCALL_DEFINE: infrastructure"), add the corresponding regex for generating compat_sys_* symbols in the tags files (similar to sys_*). Signed-off-by:
Catalin Marinas <catalin.marinas@arm.com> Cc: Alexander Viro <viro@zeniv.linux.org.uk> Cc: Michal Marek <mmarek@suse.cz> Signed-off-by:
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Fabian Frederick authored
All coccinelle scripts have a copyright in the header. Signed-off-by:
Julia Lawall <Julia.Lawall@lip6.fr> Acked-by:
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Fabian Frederick authored
Warns or generates patch for NULL check before the following functions: kfree usb_free_urb debugfs_remove debugfs_remove_recursive Signed-off-by:
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Laura Abbott authored
There's no need to have an architecture version of scatterlist.h if the only thing the file does is include asm-generic/scatterlist.h. Switch to the asm-generic versions directly. Acked-by:
Jesper Nilsson <jesper.nilsson@axis.com> Acked-by:
David Howells <dhowells@redhat.com> Signed-off-by:
Laura Abbott <lauraa@codeaurora.org> Cc: Lennox Wu <lennox.wu@gmail.com> Cc: Chen Liqin <liqin.linux@gmail.com>, Cc: Koichi Yasutake <yasutake.koichi@jp.panasonic.com> Cc: Michal Simek <monstr@monstr.eu> Cc: Hirokazu Takata <takata@linux-m32r.org> Cc: Mikael Starvik <starvik@axis.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Heiko Carstens <heiko.carstens@de.ibm.com> Cc: Russell King <linux@arm.linux.org.uk> Cc: Tony Luck <tony.luck@intel.com> Cc: Fenghua Yu <fenghua.yu@intel.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Ingo Molnar <mingo@redhat.com> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: "James E.J. Bottomley" <JBottomley@parallels.com> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Signed-off-by:
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Laura Abbott authored
Rather than have architectures #define ARCH_HAS_SG_CHAIN in an architecture specific scatterlist.h, make it a proper Kconfig option and use that instead. At same time, remove the header files are are now mostly useless and just include asm-generic/scatterlist.h. [sfr@canb.auug.org.au: powerpc files now need asm/dma.h] Signed-off-by:
Heiko Carstens <heiko.carstens@de.ibm.com> Cc: Russell King <linux@arm.linux.org.uk> Cc: Tony Luck <tony.luck@intel.com> Cc: Fenghua Yu <fenghua.yu@intel.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Ingo Molnar <mingo@redhat.com> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: "James E.J. Bottomley" <JBottomley@parallels.com> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Signed-off-by:
Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by:
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Jack Miller authored
A small cleanup while changing adjacent code. Extern is not needed for functions and only one declaration had it so remove it from the odd line. Signed-off-by:
Milton Miller <miltonm@bga.com> Signed-off-by:
Jack Miller <millerjo@us.ibm.com> Cc: Davidlohr Bueso <davidlohr@hp.com> Cc: Manfred Spraul <manfred@colorfullife.com> Cc: Anton Blanchard <anton@samba.org> Signed-off-by:
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Jack Miller authored
If shm_rmid_force (the default state) is not set then the shmids are only marked as orphaned and does not require any add, delete, or locking of the tree structure. Seperate the sysctl on and off case, and only obtain the read lock. The newly added list head can be deleted under the read lock because we are only called with current and will only change the semids allocated by this task and not manipulate the list. This commit assumes that up_read includes a sufficient memory barrier for the writes to be seen my others that later obtain a write lock. Signed-off-by:
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Jack Miller authored
This is small set of patches our team has had kicking around for a few versions internally that fixes tasks getting hung on shm_exit when there are many threads hammering it at once. Anton wrote a simple test to cause the issue: http://ozlabs.org/~anton/junkcode/bust_shm_exit.c Before applying this patchset, this test code will cause either hanging tracebacks or pthread out of memory errors. After this patchset, it will still produce output like: root@somehost:~# ./bust_shm_exit 1024 160 ... INFO: rcu_sched detected stalls on CPUs/tasks: {} (detected by 116, t=2111 jiffies, g=241, c=240, q=7113) INFO: Stall ended before state dump start ... But the task will continue to run along happily, so we consider this an improvement over hanging, even if it's a bit noisy. This patch (of 3): exit_shm obtains the ipc_ns shm rwsem for write and holds it while it walks every shared memory segment in the namespace. Thus the amount of work is related to the number of shm segments in the namespace not the number of segments that might need to be cleaned. In addition, this occurs after the task has been notified the thread has exited, so the number of tasks waiting for the ns shm rwsem can grow without bound until memory is exausted. Add a list to the task struct of all shmids allocated by this task. Init the list head in copy_process. Use the ns->rwsem for locking. Add segments after id is added, remove before removing from id. On unshare of NEW_IPCNS orphan any ids as if the task had exited, similar to handling of semaphore undo. I chose a define for the init sequence since its a simple list init, otherwise it would require a function call to avoid include loops between the semaphore code and the task struct. Converting the list_del to list_del_init for the unshare cases would remove the exit followed by init, but I left it blow up if not inited. Signed-off-by:
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David Engraf authored
On a system with low memory extracting the initramfs may fail. If this happens the user gets "Failed to execute /init" instead of an initramfs error. Check return value of sys_write and call error() when the write was incomplete or failed. Signed-off-by:
David Engraf <david.engraf@sysgo.com> Signed-off-by:
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Yinghai Lu authored
Now with 64bit bzImage and kexec tools, we support ramdisk that size is bigger than 2g, as we could put it above 4G. Found compressed initramfs image could not be decompressed properly. It turns out that image length is int during decompress detection, and it will become < 0 when length is more than 2G. Furthermore, during decompressing len as int is used for inbuf count, that has problem too. Change len to long, that should be ok as on 32 bit platform long is 32bits. Tested with following compressed initramfs image as root with kexec. gzip, bzip2, xz, lzma, lzop, lz4. run time for populate_rootfs(): size name Nehalem-EX Westmere-EX Ivybridge-EX 9034400256 root_img : 26s 24s 30s 3561095057 root_img.lz4 : 28s 27s 27s 3459554629 root_img.lzo : 29s 29s 28s 3219399480 root_img.gz : 64s 62s 49s 2251594592 root_img.xz : 262s 260s 183s 2226366598 root_img.lzma: 386s 376s 277s 2901482513 root_img.bz2 : 635s 599s Signed-off-by:
Yinghai Lu <yinghai@kernel.org> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Rashika Kheria <rashika.kheria@gmail.com> Cc: Josh Triplett <josh@joshtriplett.org> Cc: Kyungsik Lee <kyungsik.lee@lge.com> Cc: P J P <ppandit@redhat.com> Cc: Al Viro <viro@zeniv.linux.org.uk> Cc: Tetsuo Handa <penguin-kernel@i-love.sakura.ne.jp> Cc: "Daniel M. Weeks" <dan@danweeks.net> Cc: Alexandre Courbot <acourbot@nvidia.com> Cc: Jan Beulich <JBeulich@suse.com> Signed-off-by:
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Yinghai Lu authored
When initrd (compressed or not) is used, kernel report data corrupted with /dev/ram0. The root cause: During initramfs checking, if it is initrd, it will be transferred to /initrd.image with sys_write. sys_write only support 2G-4K write, so if the initrd ram is more than that, /initrd.image will not complete at all. Add local xwrite to loop calling sys_write to workaround the problem. Also need to use xwrite in write_buffer() to handle: image is uncompressed cpio and there is one big file (>2G) in it. unpack_to_rootfs ===> write_buffer ===> actions[]/do_copy At the same time, we don't need to worry about sys_read/sys_write in do_mounts_rd.c::crd_load. As decompressor will have fill/flush and local buffer that is smaller than 2G. Test with uncompressed initrd, and compressed ones with gz, bz2, lzma,xz, lzop. Signed-off-by:
H. Peter Anvin <hpa@zytor.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Cc: Tetsuo Handa <penguin-kernel@i-love.sakura.ne.jp> Cc: "Daniel M. Weeks" <dan@danweeks.net> Signed-off-by:
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Yinghai Lu authored
During testing initrd (>2G) support, find decompress/lz4 does not work with initrd at all. decompress_* should support: 1. inbuf[]/outbuf[] for kernel preboot. 2. inbuf[]/flush() for initramfs 3. fill()/flush() for initrd. in the unlz4 does not handle case 3, as input len is passed as 0, and it failed in first try. Fix that add one extra if (fill) checking, and get out if EOF from the fill(). Signed-off-by:
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Fabian Frederick authored
Add DDEBUG in Makefile when CONFIG_QNX6FS_DEBUG is set. All QNX6DEBUG messages are replaced by pr_debug which means debugging will be emitted in debug level only and no more in error and info levels. debug uses now pr_fmt and __func__ QNX6DEBUG definition has been removed. Signed-off-by:
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Fabian Frederick authored
Remove "qnx6:" and "qnx6: " from each logging instruction. Signed-off-by:
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Fabian Frederick authored
Use current logging functions. Coalesce formats. Signed-off-by:
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Fabian Frederick authored
Fix checkpatch warning: WARNING: Missing a blank line after declarations Signed-off-by:
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Fabian Frederick authored
- Remove "Error" in format logging (already in pr_ level) - Use modulename in pr_fmt instead of ROMFS: in each pr_ callsites. Signed-off-by:
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Fabian Frederick authored
Use current logging functions. Coalesce formats. Signed-off-by:
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Fabian Frederick authored
Fixes checkpatch warning: WARNING: Use #include <linux/uaccess.h> instead of <asm/uaccess.h> Signed-off-by:
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Fabian Frederick authored
Fixes some checkpatch errors/warnings: WARNING: Missing a blank line after declarations ERROR: spaces required around that '=' (ctx:VxV) ERROR: "foo * bar" should be "foo *bar" ERROR: space prohibited after that open parenthesis '(' Signed-off-by: -
Fabian Frederick authored
Use module name for "cramfs: " prefix. (note that uncompress.c printk had no prefix). Signed-off-by:
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Fabian Frederick authored
Use current logging functions. No level printk converted to pr_err Signed-off-by:
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