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2014-08-08synclink_gt: use pci_zalloc_consistentJoe Perches1-3/+2
Remove the now unnecessary memset too. Signed-off-by: Joe Perches <[email protected]> Acked-by: Greg Kroah-Hartman <[email protected]> Cc: Jiri Slaby <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2014-08-08staging: use pci_zalloc_consistentJoe Perches5-93/+44
Remove the now unnecessary memset too. Signed-off-by: Joe Perches <[email protected]> Acked-by: Greg Kroah-Hartman <[email protected]> Cc: Lior Dotan <[email protected]> Cc: Christopher Harrer <[email protected]> Cc: Forest Bond <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2014-08-08scsi: use pci_zalloc_consistentJoe Perches12-59/+32
Remove the now unnecessary memset too. Signed-off-by: Joe Perches <[email protected]> Cc: Adam Radford <[email protected]> Cc: "James E.J. Bottomley" <[email protected]> Cc: Jayamohan Kallickal <[email protected]> Cc: Dario Ballabio <[email protected]> Cc: Michael Neuffer <[email protected]> Cc: "Stephen M. Cameron" <[email protected]> Cc: Neela Syam Kolli <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2014-08-08rtlwifi: use pci_zalloc_consistentJoe Perches1-12/+5
Remove the now unnecessary memset too. Signed-off-by: Joe Perches <[email protected]> Cc: Larry Finger <[email protected]> Cc: Chaoming Li <[email protected]> Cc: "John W. Linville" <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2014-08-08rtl818x: use pci_zalloc_consistentJoe Perches1-7/+4
Remove the now unnecessary memset too. Signed-off-by: Joe Perches <[email protected]> Cc: "John W. Linville" <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2014-08-08mwl8k: use pci_zalloc_consistentJoe Perches1-4/+2
Remove the now unnecessary memset too. Signed-off-by: Joe Perches <[email protected]> Cc: Lennert Buytenhek <[email protected]> Cc: "John W. Linville" <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2014-08-08ipw2100: use pci_zalloc_consistentJoe Perches1-11/+5
Remove the now unnecessary memset too. Signed-off-by: Joe Perches <[email protected]> Cc: Stanislav Yakovlev <[email protected]> Cc: "John W. Linville" <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2014-08-08irda: use pci_zalloc_consistentJoe Perches1-2/+2
Remove the now unnecessary memset too. Signed-off-by: Joe Perches <[email protected]> Cc: Samuel Ortiz <[email protected]> Acked-by: David S. Miller <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2014-08-08qlogic: use pci_zalloc_consistentJoe Perches2-9/+6
Remove the now unnecessary memset too. Signed-off-by: Joe Perches <[email protected]> Cc: Manish Chopra <[email protected]> Cc: Sony Chacko <[email protected]> Cc: Rajesh Borundia <[email protected]> Cc: Shahed Shaikh <[email protected]> Cc: Jitendra Kalsaria <[email protected]> Cc: Ron Mercer <[email protected]> Acked-by: David S. Miller <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2014-08-08micrel: use pci_zalloc_consistentJoe Perches1-4/+3
Remove the now unnecessary memset too. Signed-off-by: Joe Perches <[email protected]> Acked-by: David S. Miller <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2014-08-08sky2: use pci_zalloc_consistentJoe Perches1-3/+2
Remove the now unnecessary memset too. Signed-off-by: Joe Perches <[email protected]> Cc: Mirko Lindner <[email protected]> Cc: Stephen Hemminger <[email protected]> Acked-by: David S. Miller <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2014-08-08enic: use pci_zalloc_consistentJoe Perches1-5/+3
Remove the now unnecessary memset too. Signed-off-by: Joe Perches <[email protected]> Cc: Christian Benvenuti <[email protected]> Cc: Sujith Sankar <[email protected]> Cc: Govindarajulu Varadarajan <[email protected]> Cc: Neel Patel <[email protected]> Acked-by: David S. Miller <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2014-08-08atl1e: use pci_zalloc_consistentJoe Perches1-5/+2
Remove the now unnecessary memset too. Signed-off-by: Joe Perches <[email protected]> Acked-by: David S. Miller <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2014-08-08amd: use pci_zalloc_consistentJoe Perches1-10/+8
Remove the now unnecessary memset too. Signed-off-by: Joe Perches <[email protected]> Acked-by: Don Fry <[email protected]> Acked-by: David S. Miller <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2014-08-08media: use pci_zalloc_consistentJoe Perches6-43/+22
Remove the now unnecessary memset too. Signed-off-by: Joe Perches <[email protected]> Cc: Hans Verkuil <[email protected]> Cc: Mauro Carvalho Chehab <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2014-08-08i810: use pci_zalloc_consistentJoe Perches1-3/+2
Remove the now unnecessary memset too. Signed-off-by: Joe Perches <[email protected]> Cc: David Airlie <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2014-08-08infiniband: use pci_zalloc_consistentJoe Perches3-13/+10
Remove the now unnecessary memset too. Signed-off-by: Joe Perches <[email protected]> Cc: Tom Tucker <[email protected]> Acked-by: Steve Wise <[email protected]> Cc: Roland Dreier <[email protected]> Cc: Sean Hefty <[email protected]> Cc: Hal Rosenstock <[email protected]> Cc: Faisal Latif <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2014-08-08crypto: use pci_zalloc_consistentJoe Perches1-3/+2
Remove the now unnecessary memset too. Signed-off-by: Joe Perches <[email protected]> Herbert Xu <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2014-08-08block: use pci_zalloc_consistentJoe Perches3-32/+22
Remove the now unnecessary memset too. Signed-off-by: Joe Perches <[email protected]> Mike Miller <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2014-08-08atm: use pci_zalloc_consistentJoe Perches2-25/+21
Remove the now unnecessary memset too. Signed-off-by: Joe Perches <[email protected]> Cc: Chas Williams <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2014-08-08pci-dma-compat: add pci_zalloc_consistent helperJoe Perches1-0/+8
Add this helper for consistency with pci_zalloc_coherent and the ability to remove unnecessary memset(,0,) uses. Signed-off-by: Joe Perches <[email protected]> Cc: Arnd Bergmann <[email protected]> Cc: "James E.J. Bottomley" <[email protected]> Cc: "John W. Linville" <[email protected]> Cc: "Stephen M. Cameron" <[email protected]> Cc: Adam Radford <[email protected]> Cc: Chaoming Li <[email protected]> Cc: Chas Williams <[email protected]> Cc: Christian Benvenuti <[email protected]> Cc: Christopher Harrer <[email protected]> Cc: Dario Ballabio <[email protected]> Cc: David Airlie <[email protected]> Cc: Don Fry <[email protected]> Cc: Faisal Latif <[email protected]> Cc: Forest Bond <[email protected]> Cc: Govindarajulu Varadarajan <[email protected]> Cc: Greg Kroah-Hartman <[email protected]> Cc: Hal Rosenstock <[email protected]> Cc: Hans Verkuil <[email protected]> Cc: Jayamohan Kallickal <[email protected]> Cc: Jiri Slaby <[email protected]> Cc: Jitendra Kalsaria <[email protected]> Cc: Larry Finger <[email protected]> Cc: Lennert Buytenhek <[email protected]> Cc: Lior Dotan <[email protected]> Cc: Manish Chopra <[email protected]> Cc: Manohar Vanga <[email protected]> Cc: Martyn Welch <[email protected]> Cc: Mauro Carvalho Chehab <[email protected]> Cc: Michael Neuffer <[email protected]> Cc: Mirko Lindner <[email protected]> Cc: Neel Patel <[email protected]> Cc: Neela Syam Kolli <[email protected]> Cc: Rajesh Borundia <[email protected]> Cc: Roland Dreier <[email protected]> Cc: Ron Mercer <[email protected]> Cc: Samuel Ortiz <[email protected]> Cc: Sean Hefty <[email protected]> Cc: Shahed Shaikh <[email protected]> Cc: Sony Chacko <[email protected]> Cc: Stanislav Yakovlev <[email protected]> Cc: Stephen Hemminger <[email protected]> Cc: Steve Wise <[email protected]> Cc: Sujith Sankar <[email protected]> Cc: Tom Tucker <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2014-08-08drivers/scsi: replace strict_strto callsDaniel Walter2-4/+4
Replace obsolete strict_strto with more appropriate kstrto calls Signed-off-by: Daniel Walter <[email protected]> Cc: "James E.J. Bottomley" <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2014-08-08arch/x86: replace strict_strto callsDaniel Walter5-9/+9
Replace obsolete strict_strto calls with appropriate kstrto calls Signed-off-by: Daniel Walter <[email protected]> Acked-by: Borislav Petkov <[email protected]> Cc: Ingo Molnar <[email protected]> Cc: "H. Peter Anvin" <[email protected]> Cc: Thomas Gleixner <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2014-08-08arch/powerpc: replace obsolete strict_strto* callsDaniel Walter4-7/+7
Replace strict_strto calls with more appropriate kstrto calls Signed-off-by: Daniel Walter <[email protected]> Cc: Benjamin Herrenschmidt <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2014-08-08arch/arm/mach-w90x900/cpu.c: replace obsolete strict_strtoDaniel Walter1-1/+2
Replace obsolete strict_strto with kstrto calls Signed-off-by: Daniel Walter <[email protected]> Cc: Wan ZongShun <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2014-08-08arch/arm/mach-s3c24xx/mach-jive.c: replace strict_strto* with kstrto*Daniel Walter1-1/+1
Replace obsolete strict_strto call with kstrto Signed-off-by: Daniel Walter <[email protected]> Cc: Ben Dooks <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2014-08-08arch/arm/mach-pxa: replace strict_strto call with kstrtoDaniel Walter2-2/+2
Replace obsolete call to strict_strto with kstrto Signed-off-by: Daniel Walter <[email protected]> Cc: Eric Miao <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2014-08-08arch/arm/mach-omap2: replace strict_strto* with kstrto*Daniel Walter2-17/+7
Replace obsolete strict_strto call with kstrto calls. Simplify copy_from_user/strict_strto by using kstrto_from_user Signed-off-by: Daniel Walter <[email protected]> Cc: Tony Lindgren <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2014-08-08MAINTAINERS: update IBM ServeRAID RAID infoMichael Opdenacker2-4/+8
- 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 <[email protected]> Reviewed-by: Jean Delvare <[email protected]> Cc: David Jeffery <[email protected]> Cc: James Bottomley <[email protected]> Cc: Paul Bolle <[email protected]> Reviewed-by: Jingoo Han <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2014-08-08MAINTAINERS: remove two ancient EATA sectionsJoe Perches1-14/+0
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: Joe Perches <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2014-08-08update Roland McGrath's mailRichard Weinberger1-1/+1
[email protected] bounces, change it to [email protected]. Signed-off-by: Richard Weinberger <[email protected]> Acked-by: Roland McGrath <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2014-08-08init/main.c: code clean-upFabian Frederick1-11/+12
Fixing some checkpatch warnings(remove global initialization, move __initdata, coalesce formats ...) Signed-off-by: Fabian Frederick <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2014-08-08kernel/acct.c: fix coding style warnings and errorsIonut Alexa1-13/+17
Signed-off-by: Ionut Alexa <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2014-08-08arm64,ia64,ppc,s390,sh,tile,um,x86,mm: remove default gate areaAndy Lutomirski21-182/+53
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 <[email protected]> Acked-by: Nathan Lynch <[email protected]> Acked-by: H. Peter Anvin <[email protected]> Acked-by: Benjamin Herrenschmidt <[email protected]> [in principle] Acked-by: Richard Weinberger <[email protected]> [for um] Acked-by: Will Deacon <[email protected]> [for arm64] Cc: Catalin Marinas <[email protected]> Cc: Will Deacon <[email protected]> Cc: Tony Luck <[email protected]> Cc: Fenghua Yu <[email protected]> Cc: Benjamin Herrenschmidt <[email protected]> Cc: Paul Mackerras <[email protected]> Cc: Martin Schwidefsky <[email protected]> Cc: Heiko Carstens <[email protected]> Cc: Chris Metcalf <[email protected]> Cc: Jeff Dike <[email protected]> Cc: Richard Weinberger <[email protected]> Cc: Thomas Gleixner <[email protected]> Cc: Ingo Molnar <[email protected]> Cc: "H. Peter Anvin" <[email protected]> Cc: Nathan Lynch <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2014-08-08fs/dlm/debug_fs.c: remove unnecessary null test before debugfs_removeFabian Frederick1-10/+5
This fixes checkpatch warning: WARNING: debugfs_remove(NULL) is safe this check is probably not required Signed-off-by: Fabian Frederick <[email protected]> Cc: Christine Caulfield <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2014-08-08scripts/checkstack.pl: automatically handle 32-bit and 64-bit mode for ARCH=x86Konstantin Khlebnikov1-7/+5
This patch adds support for ARCH=x86 into checkstack. Commit ffee0de411fd ("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 <[email protected]> Cc: David Woodhouse <[email protected]> Cc: "H. Peter Anvin" <[email protected]> Cc: Richard Weinberger <[email protected]> Cc: Geert Uytterhoeven <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2014-08-08scripts/tags.sh: include compat_sys_* symbols in the generated tagsCatalin Marinas1-0/+2
Since the kernel now has a COMPAT_SYSCALL infrastructure via commit 468366138850 ("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 <[email protected]> Cc: Alexander Viro <[email protected]> Cc: Michal Marek <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2014-08-08scripts/coccinelle/free/ifnullfree.cocci: add copyright informationFabian Frederick1-2/+3
All coccinelle scripts have a copyright in the header. Signed-off-by: Fabian Frederick <[email protected]> Suggested-by: Julia Lawall <[email protected]> Acked-by: Julia Lawall <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2014-08-08scripts/coccinelle/free: add NULL test before freeing functionsFabian Frederick1-0/+52
Warns or generates patch for NULL check before the following functions: kfree usb_free_urb debugfs_remove debugfs_remove_recursive Signed-off-by: Fabian Frederick <[email protected]> Acked-by: Julia Lawall <[email protected]> Cc: Gilles Muller <[email protected]> Cc: Joe Perches <[email protected]> Cc: Markus Elfring <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2014-08-08lib/scatterlist: clean up useless architecture versions of scatterlist.hLaura Abbott14-47/+7
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 <[email protected]> Acked-by: David Howells <[email protected]> Signed-off-by: Laura Abbott <[email protected]> Cc: Lennox Wu <[email protected]> Cc: Chen Liqin <[email protected]>, Cc: Koichi Yasutake <[email protected]> Cc: Michal Simek <[email protected]> Cc: Hirokazu Takata <[email protected]> Cc: Mikael Starvik <[email protected]> Cc: Thomas Gleixner <[email protected]> Cc: Benjamin Herrenschmidt <[email protected]> Cc: Heiko Carstens <[email protected]> Cc: Russell King <[email protected]> Cc: Tony Luck <[email protected]> Cc: Fenghua Yu <[email protected]> Cc: Paul Mackerras <[email protected]> Cc: Ingo Molnar <[email protected]> Cc: "H. Peter Anvin" <[email protected]> Cc: "James E.J. Bottomley" <[email protected]> Cc: Martin Schwidefsky <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2014-08-08lib/scatterlist: make ARCH_HAS_SG_CHAIN an actual KconfigLaura Abbott28-60/+30
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. [[email protected]: powerpc files now need asm/dma.h] Signed-off-by: Laura Abbott <[email protected]> Acked-by: Thomas Gleixner <[email protected]> [x86] Acked-by: Benjamin Herrenschmidt <[email protected]> [powerpc] Acked-by: Heiko Carstens <[email protected]> Cc: Russell King <[email protected]> Cc: Tony Luck <[email protected]> Cc: Fenghua Yu <[email protected]> Cc: Paul Mackerras <[email protected]> Cc: Ingo Molnar <[email protected]> Cc: "H. Peter Anvin" <[email protected]> Cc: "James E.J. Bottomley" <[email protected]> Cc: Martin Schwidefsky <[email protected]> Signed-off-by: Stephen Rothwell <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2014-08-08shm: remove unneeded extern for functionJack Miller1-1/+1
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 <[email protected]> Signed-off-by: Jack Miller <[email protected]> Cc: Davidlohr Bueso <[email protected]> Cc: Manfred Spraul <[email protected]> Cc: Anton Blanchard <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2014-08-08shm: allow exit_shm in parallel if only marking orphansJack Miller1-32/+35
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: Milton Miller <[email protected]> Signed-off-by: Jack Miller <[email protected]> Cc: Davidlohr Bueso <[email protected]> Cc: Manfred Spraul <[email protected]> Cc: Anton Blanchard <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2014-08-08shm: make exit_shm work proportional to task activityJack Miller4-12/+34
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: Milton Miller <[email protected]> Signed-off-by: Jack Miller <[email protected]> Cc: Davidlohr Bueso <[email protected]> Cc: Manfred Spraul <[email protected]> Cc: Anton Blanchard <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2014-08-08initramfs: add write error checksDavid Engraf1-2/+4
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 <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2014-08-08initramfs: support initramfs that is bigger than 2GiBYinghai Lu20-110/+111
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 <[email protected]> Cc: "H. Peter Anvin" <[email protected]> Cc: Ingo Molnar <[email protected]> Cc: Rashika Kheria <[email protected]> Cc: Josh Triplett <[email protected]> Cc: Kyungsik Lee <[email protected]> Cc: P J P <[email protected]> Cc: Al Viro <[email protected]> Cc: Tetsuo Handa <[email protected]> Cc: "Daniel M. Weeks" <[email protected]> Cc: Alexandre Courbot <[email protected]> Cc: Jan Beulich <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2014-08-08initramfs: support initrd that is bigger than 2GiBYinghai Lu1-4/+32
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: Yinghai Lu <[email protected]> Acked-by: H. Peter Anvin <[email protected]> Cc: Ingo Molnar <[email protected]> Cc: Geert Uytterhoeven <[email protected]> Cc: Tetsuo Handa <[email protected]> Cc: "Daniel M. Weeks" <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2014-08-08initrd: fix lz4 decompress with initrdYinghai Lu1-22/+43
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: Yinghai Lu <[email protected]> Cc: Kyungsik Lee <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2014-08-08fs/qnx6: update debugging to current functionsFabian Frederick5-39/+23
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: Fabian Frederick <[email protected]> Cc: Joe Perches <[email protected]> Cc: Kai Bankett <[email protected]> Cc: Al Viro <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2014-08-08fs/qnx6: use pr_fmt and __func__ in loggingFabian Frederick4-38/+44
Remove "qnx6:" and "qnx6: " from each logging instruction. Signed-off-by: Fabian Frederick <[email protected]> Cc: Joe Perches <[email protected]> Cc: Kai Bankett <[email protected]> Cc: Al Viro <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
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