- 10 Mar, 2005 35 commits
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Domen Puncer authored
Unify the spinlock initialization as far as possible. Signed-off-by:
Amit Gud <gud@eth.net> Signed-off-by:
Domen Puncer <domen@coderock.org> Signed-off-by:
Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it> Signed-off-by:
Andrew Morton <akpm@osdl.org> Signed-off-by:
Linus Torvalds <torvalds@osdl.org>
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Jeff Dike authored
Noticed by Frank Sorenson - the methods in arch/um/drivers/tty.c should be static. It turns out that all the channels have the same problem, so these are all fixed. These files export only a structure of function pointers, so that structure should be the only externally visible symbol. Signed-off-by:
Jeff Dike <jdike@addtoit.com> Signed-off-by:
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Jeff Dike authored
This patch adds some errors and warnings where there were none before: If someone typos "ubd" as "udb", that is caught and a warning is printed If a ubd file can't be opened, that now results in an error message If there are more telnet connections to port consoles than there are consoles, then a message will appear in the telnet session explaining why there is no login prompt. Signed-off-by: -
Jeff Dike authored
Remove a UML/x86_64 warning (and build failure if CONFIG_MODE_TT is disabled). Signed-off-by:
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Jeff Dike authored
Spotted by Al Viro, there was some bogosity in the UML/x86_64 modify_ltd. Signed-off-by:
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Jeff Dike authored
um_mount did nothing but turn around and call sys_mount with the same arguments. This makes it useless code, and it has been duly removed. Signed-off-by:
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Jeff Dike authored
Prompted by Dave Mielke: This adds a comment explaining why we do not define _XOPEN_SOURCE, even though the pread man page says you should. Signed-off-by:
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Jeff Dike authored
This patch makes some debug code in the system call path configurable. Signed-off-by:
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Jeff Dike authored
This patch removes some useless code from the system call path, and removes some debug code, which will reappear in a configurable form in the syscall-debug patch. Signed-off-by:
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Bodo Stroesser authored
Shifting register restore and userspace resume to the beginning of the userspace loop, we can remove the identical code done before the loop. Signed-off-by:
Bodo Stroesser <bstroesser@fujitsu-siemens.com> Signed-off-by:
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Jeff Dike authored
The network driver wasn't checking that the host side of an interface had been successfully opened before trying to close it at shuwtdown. Signed-off-by:
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Jeff Dike authored
ubd_get_config wasn't using the standard device number parser, which caused it not to recognize letters. Signed-off-by:
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Jeff Dike authored
This fixes a couple of copy-user problems spotted by Al Viro. copy_sc_from_user_tt was doing a copy_from_user to do an in-kernel assignment. I commented this, at the request of Chris Wedgewood. sys_ipc had a void *__user ptr which should have been void __user *ptr. Finally, there were a couple of bogus __user annotations on unsigned longs, which were never going to be passed into copy_user. Signed-off-by:
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Jeff Dike authored
Get rid of the grepping for __st_ino in hostfs, since it doesn't work on x86_64 (the grep finds it, but it is ifdefed out), and Al says it's unnecessary anyway. Signed-off-by:
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tzachar@cs.bgu.ac.il authored
Tell the netdevice code that a slirp device is not ethernet. Signed-off-by:
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Jeff Dike authored
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Jeff Dike authored
This patch makes some small changes that parallel changes in 2.6.11: The csum buffers are now unsigned char. Got rid of an unused define from pgtable-2level.h. Signed-off-by:
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Coywolf Qi Hunt authored
This patch removes the redundant compiler barrier. As Linus ever said "The mb() should make sure that gcc cannot move things around...". Signed-off-by:
Coywolf Qi Hunt <coywolf@gmail.com> Signed-off-by:
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Michael S. Tsirkin authored
The AMD-8131 I/O APIC (device id 1022:7450/7451) does not support message signalled interrupts. Thus, if a device driver attempts to enable msi, it will suceed, but interrupts are not actually delivered to the cpu. The Nforce chipsets do not seem to have this limitation. AMD confirmed that MSI mode is unsupported with this APIC. The following patch adds a flag to pci quirks to detect this and disable msi. Signed-off-by:
Michael S. Tsirkin <mst@mellano.co.il> Signed-off-by:
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Dave Hansen authored
Using the assumption that all addresses in the SRAT are ascending, the calculations can get a bit simpler, and remove the "been_here_before" variable. This also breaks that calculation out into its own function, which further simplifies the look of the code. Signed-off-by:
Dave Hansen <haveblue@us.ibm.com> Signed-off-by:
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Dave Hansen authored
This patch is to allow the booting of a numa srat base i386 system without requiring memory to be in all of it's nodes. It breaks the assumption that all nodes have memory during bootup. Signed-off-by:
Keith Mannthey <kmannth@us.ibm.com> Signed-off-by:
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Dave Hansen authored
memory_present() is how each arch/subarch will tell sparsemem and discontigmem where all of its memory is. This is what triggers sparse to go out and create its mappings for the memory, as well as allocate the mem_map[]. By: Andy Whitcroft <apw@shadowen.org> Signed-off-by:
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Dave Hansen authored
Both the pgdats and the struct zonelist are zeroed unnecessarily. The zonelist is a member of the pgdat, so any time the pgdat is cleared, so is the zonelist. All of the architectures present a zeroed pgdat to the generic code, so it's not necessary to set it again. Not clearing it like this allows the functions to be reused by the memory hotplug code. The only architecture which has a dependence on these clears is i386. The previous patch in this series fixed that up. Signed-off-by:
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Dave Hansen authored
The next patch in this series will remove the arch-independent clearing of the pgdat's. This first patch removes the i386 dependency on that behavior. The new i386 function, remapped_pgdat_init() takes care of initializing the pgdats which are finally mapped after paging_init() is done. The zone_sizes_init() call has to occur after the pgdat clearing. zone_sizes_init() is currently called from the end of paging_init(), because that's the first place where the pgdats could have been zeroed. However, zone_sizes_init() really doesn't have anything to do with paging, and probably shouldn't be in paging_init(). Moving this call into setup_memory() allows the declaration of zone_sizes_init() to change files as well, which means a net removal of one #ifdef. It also provides a handy place to put the new function, far away from the paging code that it really has nothing to do with. Moving files required only using highend_pfn inside of the HIGHMEM ifdef, but this saves a line of code anyway. Fixes from: Yasunori Goto <ygoto@us.fujitsu.com> Signed-off-by:
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David Gibson authored
Allow userspace programs on ppc64 to use the (privileged) mfpvr instruction to determine the processor type. At the moment it emulates the instruction to provide the real PVR value, though it could be made to lie in future if for some reason we wish to restrict what CPU features userspace uses. If nothing else this means that some existing ppc32 applications will now run on a 64-bit kernel (the 32-bit kernel has long supported this emulation). It will also be necessary for ppc64 perfctr support, where userspace requires finer-grained cpu type information than the kernel in order to correctly program the performance monitor control registers. Signed-off-by:
David Gibson <dwg@au1.ibm.com> Signed-off-by:
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Nathan T. Lynch authored
CC arch/ppc64/xmon/xmon.o arch/ppc64/xmon/xmon.c: In function `set_controlled_dabr': arch/ppc64/xmon/xmon.c:633: warning: implicit declaration of function `plpar_hcall_norets' arch/ppc64/xmon/xmon.c:633: error: `H_SET_DABR' undeclared (first use in this function) arch/ppc64/xmon/xmon.c:633: error: (Each undeclared identifier is reported only once arch/ppc64/xmon/xmon.c:633: error: for each function it appears in.) arch/ppc64/xmon/xmon.c:634: error: `H_Success' undeclared (first use in this function) Signed-off-by:
Nathan Lynch <ntl@pobox.com> Signed-off-by:
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Kumar Gala authored
Consolidate Kconfig options between arch/ppc/platforms/83xx/Kconfig and arch/ppc/Kconfig at Tom Rini's request. Signed-off-by:
Kumar Gala <kumar.gala@freescale.com> Signed-off-by:
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Stephen D. Smalley authored
This patch changes the selinux_setprocattr hook function (which handles writes to nodes in the /proc/pid/attr directory) to ignore an optional terminating newline at the end of the value, and to handle a value beginning with a newline or a null in the same manner as a zero length value (clearing the attribute for the process and resetting it to using the default policy behavior). This change is to address the divergence from POSIX in the existing API, as POSIX says that write(2) with a zero count will return zero with no other effect, as well as to simplify use of the API from scripts (although that isn't recommended). Signed-off-by:
Stephen Smalley <sds@tycho.nsa.gov> Signed-off-by:
James Morris <jmorris@redhat.com> Signed-off-by:
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Stephen D. Smalley authored
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Stephen D. Smalley authored
This patch adds a reqprot parameter to the security_file_mmap and security_file_mprotect hooks that is the original requested protection value prior to any modification for read-implies-exec, and changes the SELinux module to allow a mode of operation (controllable via a checkreqprot setting) where it applies checks based on that protection value rather than the protection that will be applied by the kernel, effectively restoring SELinux's original behavior prior to the introduction of the read-implies-exec logic in the mainline kernel. The patch also disables execmem and execmod checking entirely on PPC32, as the PPC32 ELF ABI presently requires RWE segments per Ulrich Drepper. At present, the read-implies-exec logic causes SELinux to see every mmap/mprotect read request by legacy binaries or binaries marked with PT_GNU_STACK RWE as a read|execute request, which tends to distort policy even if it reflects what is ultimately possible. The checkreqprot setting allows one to set the desired behavior for SELinux, so either the current behavior or the original behavior is possible. The checkreqprot value has a compile-time configurable default value and can also be set via boot parameter or at runtime via /selinux/checkreqprot if allowed by policy. Thanks to Chris Wright, James Morris, and Colin Walters for comments on an earlier version of the patch. Signed-off-by:
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dgoeddel@trustedcs.com authored
This patch replaces the original experimental Multi-Level Security (MLS) implementation in SELinux with an enhanced MLS implementation contributed by Trusted Computer Solutions (TCS). The enhanced MLS implementation replaces the hardcoded MLS logic with a flexible constraint-based system and replaces the compile-time option for MLS support with a policy load-time enable based on whether MLS support was enabled in the policy when it was built. The latter change allows a single kernel and policy toolchain to support both MLS and non-MLS policies. Compatibility is still provided as usual for existing policies. Signed-off-by:
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Kenneth W. Chen authored
Kmem_cache_alloc_node is not capable of handling a null cachep pointer as its input argument. If I try to increase a slab limit by echoing a very large number into /proc/slabinfo, kernel will panic from alloc_arraycache() because Kmem_find_general_cachep() can actually return a NULL pointer if the size argument is sufficiently large. Signed-off-by:
Ken Chen <kenneth.w.chen@intel.com> Signed-off-by:
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Andrew Morton authored
If you do 'echo 0 0 > /proc/sys/vm/lowmem_reserve_ratio' the kernel gets a divide-by-zero. Prevent that, and fiddle with some whitespace too. Signed-off-by:
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Neil Brown authored
Instead of setting one value lots of times, let's set lots of values once each, as we should.. This fixes possible inconsistencies that might arise in a version-1 superblock when devices fail and are removed. Usage of version-1 superblocks is not yet widespread and no actual problems have been reported. From: Paul Clements <paul.clements@steeleye.com> Signed-off-by:
Neil Brown <neilb@cse.unsw.edu.au> Signed-off-by:
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Andrew Morton authored
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- 09 Mar, 2005 5 commits
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bk://kernel.bkbits.net/davem/sparc-2.6Linus Torvalds authored
into ppc970.osdl.org:/home/torvalds/v2.6/linux
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bk://kernel.bkbits.net/gregkh/linux/2.6.11/shLinus Torvalds authored
into ppc970.osdl.org:/home/torvalds/v2.6/linux
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bk://kernel.bkbits.net/gregkh/linux/2.6.11/tpmLinus Torvalds authored
into ppc970.osdl.org:/home/torvalds/v2.6/linux
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bk://kernel.bkbits.net/gregkh/linux/2.6.11/aoeLinus Torvalds authored
into ppc970.osdl.org:/home/torvalds/v2.6/linux
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bk://kernel.bkbits.net/gregkh/linux/2.6.11/driverLinus Torvalds authored
into ppc970.osdl.org:/home/torvalds/v2.6/linux
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