- 10 Sep, 2005 40 commits
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Paolo 'Blaisorblade' Giarrusso authored
The UML fault handler was recently changed to enforce PROT_NONE protections, by requiring VM_READ or VM_EXEC on VMA's. However, by mistake, things were changed such that VM_READ is always checked, also on write faults; so a VMA mapped with only PROT_WRITE is not readable (unless it's prefaulted with MAP_POPULATE or with a write), which is different from i386. Discovered while testing remap_file_pages protection support. Signed-off-by:
Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it> Signed-off-by:
Linus Torvalds <torvalds@osdl.org>
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Paolo 'Blaisorblade' Giarrusso authored
Turns out that, for UML, a *lot* of VM-related trivial functions are not inlined but rather normal functions. In other sections of UML code, this is justified by having files which interact with the host and cannot therefore include kernel headers, but in this case there's no such justification. I've had to turn many of them to macros because of missing declarations. While doing this, I've decided to reuse some already existing macros. Signed-off-by:
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Paolo 'Blaisorblade' Giarrusso authored
Use the new macros for x86_64 too. Note that the current scripts includes different definitions; more exactly, it only contains part of the DWARF2 sections and the .comment one from Stabs. Shouldn't be a problem, anyway. Cc: Sam Ravnborg <sam@ravnborg.org> Signed-off-by:
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Paolo 'Blaisorblade' Giarrusso authored
Inside the linker script, insert the code for DWARF debug info sections. This may help GDB'ing a Uml binary. Actually, it seems that ld is able to guess what I added correctly, but normal linker scripts include this section so it should be correct anyway adding it. On request by Sam Ravnborg <sam@ravnborg.org>, I've added it to asm-generic/vmlinux.lds.s. I've also moved there the stabs debug section, used the new macro in i386 linker script and added DWARF debug section to that. In the truth, I've not been able to verify the difference in GDB behaviour after this change (I've seen large improvements with another patch). This may depend on my binutils version, older one may have worse defaults. However, this section is present in normal linker script, so add it at least for the sake of cleanness. Signed-off-by:
Sam Ravnborg <sam@ravnborg.org> Signed-off-by:
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Paolo 'Blaisorblade' Giarrusso authored
We must remove even arch/um/os-Linux/util/mk_user_constants, which we don't do. Also, Kconfig_arch must be listed only once, between CLEAN_FILES. Signed-off-by:
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Linus Torvalds authored
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Linus Torvalds authored
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viro@ZenIV.linux.org.uk authored
envctrl doesn't need unistd.h; moreover, since it declares errno static gcc4 gets very unhappy about including unistd.h. Signed-off-by:
Al Viro <viro@zeniv.linux.org.uk> Signed-off-by:
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viro@ZenIV.linux.org.uk authored
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Stephen Rothwell authored
This is less troublesome and makes more sense. Signed-off-by:
Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by:
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Jens Axboe authored
The reference count fix merged isn't fully bug free. It doesn't leak now, but instead it crashes due to looking at freed memory. So for now, lets reverse the change and I'll fix it for real next week. Signed-off-by:
Jens Axboe <axboe@suse.de> Signed-off-by:
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Paul Mackerras authored
This allows cpus to be off-lined on 32-bit SMP powermacs. When a cpu is off-lined, it is put into sleep mode with interrupts disabled. It can be on-lined again by asserting its soft-reset pin, which is connected to a GPIO pin. With this I can off-line the second cpu in my dual G4 powermac, which means that I can then suspend the machine (the suspend/resume code refuses to suspend if more than one cpu is online, and making it cope with multiple cpus is surprisingly messy). Signed-off-by:
Paul Mackerras <paulus@samba.org> Signed-off-by:
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Paul Mackerras authored
This is a patch that I have had in my tree for ages. If init causes an exception that raises a signal, such as a SIGSEGV, SIGILL or SIGFPE, and it hasn't registered a handler for it, we don't deliver the signal, since init doesn't get any signals that it doesn't have a handler for. But that means that we just return to userland and generate the same exception again immediately. With this patch we print a message and kill init in this situation. This is very useful when you have a bug in the kernel that means that init doesn't get as far as executing its first instruction. :) Without this patch the system hangs when it gets to starting the userland init; with it you at least get a message giving you a clue about what has gone wrong. Signed-off-by:
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Nishanth Aravamudan authored
Use schedule_timeout_uninterruptible() instead of set_current_state()/schedule_timeout() to reduce kernel size. Signed-off-by:
Nishanth Aravamudan <nacc@us.ibm.com> Signed-off-by:
Andrew Morton <akpm@osdl.org> Signed-off-by:
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Nishanth Aravamudan authored
Use schedule_timeout_interruptible() instead of set_current_state()/schedule_timeout() to reduce kernel size. Also use human-time to jiffies units conversion functions rather than direct HZ division to avoid rounding issues. Signed-off-by:
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Nishanth Aravamudan authored
Use schedule_timeout_interruptible() instead of set_current_state()/schedule_timeout() to reduce kernel size. Signed-off-by:
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Nishanth Aravamudan authored
Use schedule_timeout_{un,}interruptible() instead of set_current_state()/schedule_timeout() to reduce kernel size. Signed-off-by:Adrian Bunk <bunk@stusta.de> Signed-off-by:
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Nishanth Aravamudan authored
Use schedule_timeout_{un,}interruptible() instead of set_current_state()/schedule_timeout() to reduce kernel size. Signed-off-by: -
Nishanth Aravamudan authored
Use schedule_timeout_interruptible() instead of set_current_state()/schedule_timeout() to reduce kernel size. Also, replace custom timespectojiffies() function with globally availabe timespec_to_jiffies(). Signed-off-by:
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Nishanth Aravamudan authored
Use schedule_timeout_interruptible() instead of set_current_state()/schedule_timeout() to reduce kernel size. Signed-off-by:
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Nishanth Aravamudan authored
Use schedule_timeout_interruptible() instead of set_current_state()/schedule_timeout() to reduce kernel size. Signed-off-by:
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Nishanth Aravamudan authored
Use schedule_timeout_{,un}interruptible() instead of set_current_state()/schedule_timeout() to reduce kernel size. Signed-off-by: -
Nishanth Aravamudan authored
Use schedule_timeout_{,un}interruptible() instead of set_current_state()/schedule_timeout() to reduce kernel size. Signed-off-by: -
Nishanth Aravamudan authored
Use schedule_timeout_{,un}interruptible() instead of set_current_state()/schedule_timeout() to reduce kernel size. Also use helper functions to convert between human time units and jiffies rather than constant HZ division to avoid rounding errors. Signed-off-by: -
Andrew Morton authored
Remove these ifdefs - there's no need to have more than one definition of these multipliers anywhere. Cc: Nishanth Aravamudan <nacc@us.ibm.com> Signed-off-by:
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Nishanth Aravamudan authored
Clarify the human-time units to jiffies conversion functions by using the constants in time.h. This makes many of the subsequent patches direct copies of the current code. Signed-off-by:
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Nishanth Aravamudan authored
Add schedule_timeout_{,un}interruptible() interfaces so that schedule_timeout() callers don't have to worry about forgetting to add the set_current_state() call beforehand. Signed-off-by: -
Adrian Bunk authored
get_cpu_vendor() no longer has any users in other files. Signed-off-by:
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Adrian Bunk authored
Every file should #include the header with the prototypes of the global functions it is offering. Signed-off-by:
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Pavel Machek authored
Remove S4BIOS support. It is pretty useless, and only ever worked for _me_ once. (I do not think anyone else ever tried it). It was in feature-removal for a long time, and it should have been removed before. Signed-off-by:
Pavel Machek <pavel@suse.cz> Signed-off-by:
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Adrian Bunk authored
"extern inline" doesn't make much sense. Signed-off-by:
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Adrian Bunk authored
"extern inline" doesn't make much sense. Signed-off-by:
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Adrian Bunk authored
"extern inline" doesn't make much sense. Signed-off-by:
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Adrian Bunk authored
"extern inline" doesn't make much sense. Signed-off-by:
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James Lamanna authored
super.c vfree() checking cleanups. Signed-off by: James Lamanna <jlamanna@gmail.com> Signed-off-by:
Domen Puncer <domen@coderock.org> Signed-off-by:
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Nishanth Aravamudan authored
Uses msleep() in place of schedule_timeout() to guarantee the task delays as expected. Signed-off-by:
Maximilian Attems <janitor@sternwelten.at> Signed-off-by:
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Nishanth Aravamudan authored
Use msleep() or msleep_interruptible() [as appropriate] instead of schedule_timeout() to gurantee the task delays as expected. As a result changed the units of the timeout variable from jiffies to msecs. Signed-off-by:
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Michael Veeck authored
Patch removes unnecessary min/max macros and changes calls to use kernel.h macros instead. Signed-off-by:
Michael Veeck <michael.veeck@gmx.net> Signed-off-by:
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Michael Veeck authored
Patch removes unnecessary min/max macros and changes calls to use kernel.h macros instead. Signed-off-by:
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Domen Puncer authored
s/for/list_for_each/ Signed-off-by:
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