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2007-05-07uml: remove page_size()Jeff Dike1-5/+0
userspace code used to have to call the kernelspace function page_size() in order to determine the value of the kernel's PAGE_SIZE. Since this is now available directly from kern_constants.h as UM_KERN_PAGE_SIZE, page_size() can be deleted and calls changed to use the constant. Signed-off-by: Jeff Dike <[email protected]> Cc: Paolo 'Blaisorblade' Giarrusso <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2007-05-07uml: tidy process.cJeff Dike1-83/+35
Clean up arch/um/kernel/process.c: - lots of return(x); -> return x; conversions - a number of the small functions are either unused, in which case they are gone, along any declarations in a header, or could be made static. - current_pid is ifdefed on CONFIG_MODE_TT and its declaration is ifdefed on both CONFIG_MODE_TT and UML_CONFIG_MODE_TT because we don't know whether it's being used in a userspace or kernel file. Signed-off-by: Jeff Dike <[email protected]> Cc: Paolo 'Blaisorblade' Giarrusso <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2007-05-07uml: speed up execJeff Dike1-1/+11
flush_thread doesn't need to do a full page table walk in order to clear the address space. It knows what the end result needs to be, so it can call unmap directly. This results in a 10-20% speedup in an exec from bash. Signed-off-by: Jeff Dike <[email protected]> Cc: Paolo 'Blaisorblade' Giarrusso <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2007-05-07remove unused header file: arch/um/kernel/tt/include/mode_kern-tt.hRobert P. J. Day1-52/+0
Signed-off-by: Robert P. J. Day <[email protected]> Acked-by: Jeff Dike <[email protected]> Cc: Paolo 'Blaisorblade' Giarrusso <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2007-05-07uml: add missing __init declarationsJeff Dike1-1/+1
The build started finding calls from non-init to init functions. These are just cases of init functions not being properly marked, so this patch fixes that. Signed-off-by: Jeff Dike <[email protected]> Cc: Paolo 'Blaisorblade' Giarrusso <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2007-05-07uml: remove user_util.hJeff Dike34-34/+0
user_util.h isn't needed any more, so delete it and remove all includes of it. Signed-off-by: Jeff Dike <[email protected]> Cc: Paolo 'Blaisorblade' Giarrusso <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2007-05-07uml: create as-layout.hJeff Dike9-0/+9
This patch moves all the the symbols defined in um_arch.c, which are mostly boundaries between different parts of the UML kernel address space, to a new header, as-layout.h. There are also a few things here which aren't really related to address space layout, but which don't really have a better place to go. Signed-off-by: Jeff Dike <[email protected]> Cc: Paolo 'Blaisorblade' Giarrusso <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2007-05-07uml: create arch.hJeff Dike2-0/+2
This patch moves the declarations of the architecture hooks from user_util.h to a new header, arch.c, and adds the necessary includes to files which need those declarations. Signed-off-by: Jeff Dike <[email protected]> Cc: Paolo 'Blaisorblade' Giarrusso <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2007-05-07uml: host_info tidyingJeff Dike1-1/+5
Move the host_info string from util.c to um_arch.c, where it is actually initialized and used. Also document its lack of locking. Signed-off-by: Jeff Dike <[email protected]> Cc: Paolo 'Blaisorblade' Giarrusso <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2007-05-07uml: formatting fixesJeff Dike1-26/+25
Formatting fixes - style violations whitespace breakage emacs formatting comment removal Signed-off-by: Jeff Dike <[email protected]> Cc: Paolo 'Blaisorblade' Giarrusso <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2007-05-07uml: delete unused codeJeff Dike1-0/+2
Get rid of a bunch of unused stuff - cpu_feature had no users linux_prog is little-used, so its declaration is moved to the user for easy deletion when the whole file goes away a long-unused debugging aid in helper.c is gone Signed-off-by: Jeff Dike <[email protected]> Cc: Paolo 'Blaisorblade' Giarrusso <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2007-03-29[PATCH] uml: fix LVM crashJason Lunz1-2/+1
Permit lvm to create logical volumes without crashing UML. When device-mapper's DM_DEV_CREATE_CMD ioctl is called to create a new device, dev_create()->dm_create()->alloc_dev()-> blk_queue_bounce_limit(md->queue, BLK_BOUNCE_ANY) is called. blk_queue_bounce_limit(BLK_BOUNCE_ANY) calls init_emergency_isa_pool() if blk_max_pfn < blk_max_low_pfn. This is the case on UML, but init_emergency_isa_pool() hits BUG_ON(!isa_page_pool) because there doesn't seem to be a dma zone on UML for mempool_create() to allocate from. Most architectures seem to have max_low_pfn == max_pfn, but UML doesn't because of the uml_reserved chunk it keeps for itself. From what I can see, max_pfn and max_low_pfn don't get much use after the bootmem-allocator stops being used anyway, except that they initialize the block layer's blk_max_low_pfn/blk_max_pfn. This ensures init_emergency_isa_pool() doesn't crash uml in this situation by setting max_low_pfn == max_pfn in mem_init(). Signed-off-by: Jason Lunz <[email protected]> Signed-off-by: Jeff Dike <[email protected]> Cc: Paolo 'Blaisorblade' Giarrusso <[email protected]> Cc: Alasdair G Kergon <[email protected]> Cc: Jens Axboe <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2007-03-08[PATCH] uml: activate_fd: return ENOMEM only when appropriatePaolo 'Blaisorblade' Giarrusso1-0/+1
Avoid returning ENOMEM in case of a duplicate IRQ - ENOMEM was saved into err earlier. Signed-off-by: Paolo 'Blaisorblade' Giarrusso <[email protected]> Acked-by: Jeff Dike <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2007-03-06[PATCH] uml: fix formatting violations in signal delivery codeJeff Dike1-3/+3
Fix a few formatting bugs in the signal code. Signed-off-by: Jeff Dike <[email protected]> Cc: Paolo 'Blaisorblade' Giarrusso <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2007-02-12[PATCH] Dynamic kernel command-line: fixupsAlon Bar-Lev1-3/+3
Remove in-source externs, linux/init.h is included in all cases. This is a fixups for "Dynamic kernel command-line" patch. It also includes some uml __init fixups so that we can __initdata also its command_line. Signed-off-by: Alon Bar-Lev <[email protected]> Cc: Jeff Dike <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2007-02-12[PATCH] Dynamic kernel command-line: umAlon Bar-Lev1-1/+1
1. Rename saved_command_line into boot_command_line. 2. Set command_line as __initdata. Signed-off-by: Alon Bar-Lev <[email protected]> Cc: Jeff Dike <[email protected]> Cc: Paolo 'Blaisorblade' Giarrusso <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2007-02-11[PATCH] uml: x86_64 ptrace fixesJeff Dike1-0/+7
This patch fixes some missing ptrace bits on x86_64. PTRACE_ARCH_PRCTL is hooked up and implemented. This required generalizing arch_prctl_skas slightly to take a task_struct to modify. Previously, it always operated on current. Reading and writing the debug registers is also enabled by un-ifdefing the code that implements that. It turns out that x86_64 is identical to i386, so the same code can be used. Signed-off-by: Jeff Dike <[email protected]> Cc: Paolo 'Blaisorblade' Giarrusso <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2007-02-11[PATCH] uml: umid tidyingJeff Dike2-2/+3
Add an error message when two umids are put on the command line. umid.h is kind of pointless since it only declares one thing, and that is already declared in os.h. Commented the lack of locking of some data in os-Linux/umid.h. Signed-off-by: Jeff Dike <[email protected]> Cc: Paolo 'Blaisorblade' Giarrusso <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2007-02-11[PATCH] uml: SIGIO formatting fixesJeff Dike1-3/+3
Fix formatting in the sigio code. Signed-off-by: Jeff Dike <[email protected]> Cc: Paolo 'Blaisorblade' Giarrusso <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2007-02-11[PATCH] uml: SIGIO locking commentJeff Dike1-0/+1
Comment the use of a mysterious-looking lock. Signed-off-by: Jeff Dike <[email protected]> Cc: Paolo 'Blaisorblade' Giarrusso <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2007-02-11[PATCH] uml: IRQ handler tidyingJeff Dike1-4/+3
Tidying the irq code - make a variable static activate_fd can call kmalloc directly since it's now kernel code added a no-locking comment fixed a style violation Signed-off-by: Jeff Dike <[email protected]> Cc: Paolo 'Blaisorblade' Giarrusso <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2007-02-11[PATCH] uml: locking comments in memory and tempfile codeJeff Dike1-1/+2
Locking comments and emacs comment removal in the low-level memory and temp file code. Signed-off-by: Jeff Dike <[email protected]> Cc: Paolo 'Blaisorblade' Giarrusso <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2007-02-11[PATCH] uml: remove code controlled by non-existent config optionJeff Dike1-5/+1
CONFIG_HOST_TASK_SIZE doesn't exist any more. Signed-off-by: Jeff Dike <[email protected]> Cc: Paolo 'Blaisorblade' Giarrusso <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2007-02-11[PATCH] uml: const a variableJeff Dike1-1/+1
kstack_depth_to_print can be made const. Signed-off-by: Jeff Dike <[email protected]> Cc: Paolo 'Blaisorblade' Giarrusso <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2007-02-11[PATCH] uml: make signal handlers staticJeff Dike1-14/+14
A bunch of the signal handlers can be made static. Signed-off-by: Jeff Dike <[email protected]> Cc: Paolo 'Blaisorblade' Giarrusso <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2007-02-11[PATCH] uml: remove unused variable and functionJeff Dike1-16/+0
syscall_index and next_syscall_index turn out not to be used. Signed-off-by: Jeff Dike <[email protected]> Cc: Paolo 'Blaisorblade' Giarrusso <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2007-02-11[PATCH] uml: delete unused fileJeff Dike2-24/+1
It turns out that resource.c isn't needed. Signed-off-by: Jeff Dike <[email protected]> Cc: Paolo 'Blaisorblade' Giarrusso <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2007-02-11[PATCH] uml: make time data per-cpuJeff Dike1-12/+12
prev_nsecs and delta need to be arrays, and indexed by CPU number. Signed-off-by: Jeff Dike <[email protected]> Cc: Paolo 'Blaisorblade' Giarrusso <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2007-02-11[PATCH] uml: mem.c and physmem.c formatting fixesJeff Dike2-77/+57
Fix a bunch of style violations in mem.c and physmem.c Signed-off-by: Jeff Dike <[email protected]> Cc: Paolo 'Blaisorblade' Giarrusso <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2007-02-11[PATCH] uml: locking comments in iomem driverJeff Dike2-10/+17
Comment some lack of locking in the iomem driver. Also, a couple of variables are in the wrong place, so they are moved. Signed-off-by: Jeff Dike <[email protected]> Cc: Paolo 'Blaisorblade' Giarrusso <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2007-02-11[PATCH] uml: Kill a compilation warningJeff Dike1-1/+1
Kill a compilation warning. Signed-off-by: Jeff Dike <[email protected]> Cc: Paolo 'Blaisorblade' Giarrusso <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2007-02-11[PATCH] uml: mconsole lockingJeff Dike1-0/+1
Locking fixes. Locking was totally lacking for the mconsole_devices, which got a spin lock, and the unplugged pages data, which got a mutex. The locking of the mconsole console output code was confused. Now, the console_lock (renamed to client_lock) protects the clients list. Signed-off-by: Jeff Dike <[email protected]> Cc: Paolo 'Blaisorblade' Giarrusso <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2007-02-11[PATCH] uml: return hotplug errors to hostJeff Dike2-4/+4
I noticed that errors happening while hotplugging devices from the host were never returned back to the mconsole client. In some cases, success was returned instead of even an information-free error. This patch cleans that up by having the low-level configuration code pass back an error string along with an error code. At the top level, which knows whether it is early boot time or responding to an mconsole request, the string is printk'd or returned to the mconsole client. There are also whitespace and trivial code cleanups in the surrounding code. Signed-off-by: Jeff Dike <[email protected]> Cc: Paolo 'Blaisorblade' Giarrusso <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2006-12-08[PATCH] tty: ->signal->tty lockingPeter Zijlstra1-3/+4
Fix the locking of signal->tty. Use ->sighand->siglock to protect ->signal->tty; this lock is already used by most other members of ->signal/->sighand. And unless we are 'current' or the tasklist_lock is held we need ->siglock to access ->signal anyway. (NOTE: sys_unshare() is broken wrt ->sighand locking rules) Note that tty_mutex is held over tty destruction, so while holding tty_mutex any tty pointer remains valid. Otherwise the lifetime of ttys are governed by their open file handles. This leaves some holes for tty access from signal->tty (or any other non file related tty access). It solves the tty SLAB scribbles we were seeing. (NOTE: the change from group_send_sig_info to __group_send_sig_info needs to be examined by someone familiar with the security framework, I think it is safe given the SEND_SIG_PRIV from other __group_send_sig_info invocations) [[email protected]: 3270 fix] [[email protected]: various post-viro fixes] Signed-off-by: Peter Zijlstra <[email protected]> Acked-by: Alan Cox <[email protected]> Cc: Oleg Nesterov <[email protected]> Cc: Prarit Bhargava <[email protected]> Cc: Chris Wright <[email protected]> Cc: Roland McGrath <[email protected]> Cc: Stephen Smalley <[email protected]> Cc: James Morris <[email protected]> Cc: "David S. Miller" <[email protected]> Cc: Jeff Dike <[email protected]> Cc: Martin Schwidefsky <[email protected]> Cc: Jan Kara <[email protected]> Signed-off-by: Martin Schwidefsky <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2006-10-31[PATCH] uml: add _text definition to linker scriptsJeff Dike2-0/+2
kallsyms now refers to addresses as '_text + 0xADDRESS', rather than just '0xADDRESS', so we need to define _text. Signed-off-by: Jeff Dike <[email protected]> Cc: Paolo 'Blaisorblade' Giarrusso <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2006-10-31[PATCH] uml ubd driver: various little changesPaolo 'Blaisorblade' Giarrusso1-1/+0
Fix a small memory leak in ubd_config, and clearify the confusion which lead to it. Then, some little changes not affecting operations - * move init functions together, * add a comment about a potential problem in case of some evolution in the block layer, * mark all initcalls as static __init functions * mark an used once little function as inline * document that mconsole methods are all called in process context (was triggered when checking ubd mconsole methods). Signed-off-by: Paolo 'Blaisorblade' Giarrusso <[email protected]> Cc: Jeff Dike <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2006-10-20[PATCH] uml: split memory allocation prototypes out of user.hPaolo 'Blaisorblade' Giarrusso2-0/+2
user.h is too generic a header name. I've split out allocation routines from it. Signed-off-by: Paolo 'Blaisorblade' Giarrusso <[email protected]> Cc: Jeff Dike <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2006-10-11[PATCH] uml: make TT mode compile after setjmp-related changesPaolo 'Blaisorblade' Giarrusso1-3/+3
Make TT mode compile after the introduction of klibc's implementation of setjmp. Signed-off-by: Paolo 'Blaisorblade' Giarrusso <[email protected]> Cc: Jeff Dike <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2006-10-11[PATCH] uml: correct removal of pte_mkexecPaolo 'Blaisorblade' Giarrusso1-4/+1
Correct commit 5906e4171ad61ce68de95e51b773146707671f80 - this makes more sense: we turn pte_mkexec + pte_wrprotect to pte_mkread. However, due to a bug in pte_mkread, it does the exact same thing as pte_mkwrite, so this patch improves the code but does not change anything in practice. The pte_mkread bug is fixed separately, as it may have big impact. Signed-off-by: Paolo 'Blaisorblade' Giarrusso <[email protected]> Cc: Jeff Dike <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2006-10-09IRQ: Use the new typedef for interrupt handler function pointersDavid Howells1-2/+2
Use the new typedef for interrupt handler function pointers rather than actually spelling out the full thing each time. This was scripted with the following small shell script: #!/bin/sh egrep -nHrl -e 'irqreturn_t[ ]*[(][*]' $* | while read i do echo $i perl -pi -e 's/irqreturn_t\s*[(]\s*[*]\s*([_a-zA-Z0-9]*)\s*[)]\s*[(]\s*int\s*,\s*void\s*[*]\s*[)]/irq_handler_t \1/g' $i || exit $? done Signed-Off-By: David Howells <[email protected]>
2006-10-08[PATCH] uml pt_regs fixesAl Viro3-9/+10
Real fix for UML pt_regs stuff. Note set_irq_regs() logics in there... Signed-off-by: Al Viro <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2006-10-06[PATCH] um: irq changes break buildPekka Enberg1-1/+1
Fixup broken UML build due to 7d12e780e003f93433d49ce78cfedf4b4c52adc5 "IRQ: Maintain regs pointer globally rather than passing to IRQ handlers". Cc: David Howells <[email protected]> Cc: Jeff Dike <[email protected]> Cc: Paolo "Blaisorblade" Giarrusso <[email protected]> Signed-off-by: Pekka Enberg <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2006-10-04Remove all inclusions of <linux/config.h>Dave Jones13-13/+0
kbuild explicitly includes this at build time. Signed-off-by: Dave Jones <[email protected]>
2006-10-02[PATCH] rename the provided execve functions to kernel_execveArnd Bergmann1-0/+13
Some architectures provide an execve function that does not set errno, but instead returns the result code directly. Rename these to kernel_execve to get the right semantics there. Moreover, there is no reasone for any of these architectures to still provide __KERNEL_SYSCALLS__ or _syscallN macros, so remove these right away. [[email protected]: build fix] [[email protected]: build fix] Signed-off-by: Arnd Bergmann <[email protected]> Cc: Andi Kleen <[email protected]> Acked-by: Paul Mackerras <[email protected]> Cc: Benjamin Herrenschmidt <[email protected]> Cc: Richard Henderson <[email protected]> Cc: Ivan Kokshaysky <[email protected]> Cc: Russell King <[email protected]> Cc: Ian Molton <[email protected]> Cc: Mikael Starvik <[email protected]> Cc: David Howells <[email protected]> Cc: Yoshinori Sato <[email protected]> Cc: Hirokazu Takata <[email protected]> Cc: Ralf Baechle <[email protected]> Cc: Kyle McMartin <[email protected]> Cc: Heiko Carstens <[email protected]> Cc: Martin Schwidefsky <[email protected]> Cc: Paul Mundt <[email protected]> Cc: Kazumoto Kojima <[email protected]> Cc: Richard Curnow <[email protected]> Cc: William Lee Irwin III <[email protected]> Cc: "David S. Miller" <[email protected]> Cc: Jeff Dike <[email protected]> Cc: Paolo 'Blaisorblade' Giarrusso <[email protected]> Cc: Miles Bader <[email protected]> Cc: Chris Zankel <[email protected]> Cc: "Luck, Tony" <[email protected]> Cc: Geert Uytterhoeven <[email protected]> Cc: Roman Zippel <[email protected]> Signed-off-by: Adrian Bunk <[email protected]> Cc: Arnd Bergmann <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2006-10-02[PATCH] namespaces: utsname: use init_utsname when appropriateSerge E. Hallyn1-3/+3
In some places, particularly drivers and __init code, the init utsns is the appropriate one to use. This patch replaces those with a the init_utsname helper. Changes: Removed several uses of init_utsname(). Hope I picked all the right ones in net/ipv4/ipconfig.c. These are now changed to utsname() (the per-process namespace utsname) in the previous patch (2/7) [[email protected]: CIFS fix] Signed-off-by: Serge E. Hallyn <[email protected]> Cc: Kirill Korotaev <[email protected]> Cc: "Eric W. Biederman" <[email protected]> Cc: Herbert Poetzl <[email protected]> Cc: Andrey Savochkin <[email protected]> Cc: Serge Hallyn <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2006-10-02[PATCH] namespaces: utsname: switch to using uts namespacesSerge E. Hallyn1-11/+11
Replace references to system_utsname to the per-process uts namespace where appropriate. This includes things like uname. Changes: Per Eric Biederman's comments, use the per-process uts namespace for ELF_PLATFORM, sunrpc, and parts of net/ipv4/ipconfig.c [[email protected]: UML fix] [[email protected]: cleanup] [[email protected]: build fix] Signed-off-by: Serge E. Hallyn <[email protected]> Cc: Kirill Korotaev <[email protected]> Cc: "Eric W. Biederman" <[email protected]> Cc: Herbert Poetzl <[email protected]> Cc: Andrey Savochkin <[email protected]> Signed-off-by: Cedric Le Goater <[email protected]> Cc: Jeff Dike <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2006-10-02[PATCH] nsproxy: move init_nsproxy into kernel/nsproxy.cSerge E. Hallyn1-2/+0
Move the init_nsproxy definition out of arch/ into kernel/nsproxy.c. This avoids all arches having to be updated. Compiles and boots on s390. Signed-off-by: Serge E. Hallyn <[email protected]> Cc: Kirill Korotaev <[email protected]> Cc: "Eric W. Biederman" <[email protected]> Cc: Herbert Poetzl <[email protected]> Cc: Andrey Savochkin <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2006-10-02[PATCH] namespaces: add nsproxySerge E. Hallyn1-0/+2
This patch adds a nsproxy structure to the task struct. Later patches will move the fs namespace pointer into this structure, and introduce a new utsname namespace into the nsproxy. The vserver and openvz functionality, then, would be implemented in large part by virtualizing/isolating more and more resources into namespaces, each contained in the nsproxy. [[email protected]: build fix] Signed-off-by: Serge Hallyn <[email protected]> Cc: Kirill Korotaev <[email protected]> Cc: "Eric W. Biederman" <[email protected]> Cc: Herbert Poetzl <[email protected]> Cc: Andrey Savochkin <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2006-09-29[PATCH] simplify update_times (avoid jiffies/jiffies_64 aliasing problem)Atsushi Nemoto1-1/+1
Pass ticks to do_timer() and update_times(), and adjust x86_64 and s390 timer interrupt handler with this change. Currently update_times() calculates ticks by "jiffies - wall_jiffies", but callers of do_timer() should know how many ticks to update. Passing ticks get rid of this redundant calculation. Also there are another redundancy pointed out by Martin Schwidefsky. This cleanup make a barrier added by 5aee405c662ca644980c184774277fc6d0769a84 needless. So this patch removes it. As a bonus, this cleanup make wall_jiffies can be removed easily, since now wall_jiffies is always synced with jiffies. (This patch does not really remove wall_jiffies. It would be another cleanup patch) Signed-off-by: Atsushi Nemoto <[email protected]> Cc: Martin Schwidefsky <[email protected]> Cc: "Eric W. Biederman" <[email protected]> Cc: Thomas Gleixner <[email protected]> Cc: Ingo Molnar <[email protected]> Cc: john stultz <[email protected]> Cc: Andi Kleen <[email protected]> Cc: Paul Mackerras <[email protected]> Cc: Benjamin Herrenschmidt <[email protected]> Cc: Richard Henderson <[email protected]> Cc: Ivan Kokshaysky <[email protected]> Acked-by: Russell King <[email protected]> Cc: Ian Molton <[email protected]> Cc: Mikael Starvik <[email protected]> Acked-by: David Howells <[email protected]> Cc: Yoshinori Sato <[email protected]> Cc: Hirokazu Takata <[email protected]> Acked-by: Ralf Baechle <[email protected]> Cc: Kyle McMartin <[email protected]> Cc: Heiko Carstens <[email protected]> Cc: Martin Schwidefsky <[email protected]> Cc: Paul Mundt <[email protected]> Cc: Kazumoto Kojima <[email protected]> Cc: Richard Curnow <[email protected]> Cc: William Lee Irwin III <[email protected]> Cc: "David S. Miller" <[email protected]> Cc: Jeff Dike <[email protected]> Cc: Paolo 'Blaisorblade' Giarrusso <[email protected]> Cc: Miles Bader <[email protected]> Cc: Chris Zankel <[email protected]> Acked-by: "Luck, Tony" <[email protected]> Cc: Geert Uytterhoeven <[email protected]> Cc: Roman Zippel <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2006-09-29[PATCH] pidspace: is_init()Sukadev Bhattiprolu1-1/+1
This is an updated version of Eric Biederman's is_init() patch. (http://lkml.org/lkml/2006/2/6/280). It applies cleanly to 2.6.18-rc3 and replaces a few more instances of ->pid == 1 with is_init(). Further, is_init() checks pid and thus removes dependency on Eric's other patches for now. Eric's original description: There are a lot of places in the kernel where we test for init because we give it special properties. Most significantly init must not die. This results in code all over the kernel test ->pid == 1. Introduce is_init to capture this case. With multiple pid spaces for all of the cases affected we are looking for only the first process on the system, not some other process that has pid == 1. Signed-off-by: Eric W. Biederman <[email protected]> Signed-off-by: Sukadev Bhattiprolu <[email protected]> Cc: Dave Hansen <[email protected]> Cc: Serge Hallyn <[email protected]> Cc: Cedric Le Goater <[email protected]> Cc: <[email protected]> Acked-by: Paul Mackerras <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
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