- 24 Jun, 2004 40 commits
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Alexander Viro authored
Fixes for direct dereferencing of userland pointers in i2o_config.c
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Alexander Viro authored
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Alexander Viro authored
isdn_writebuf_stub() was always called for userland pointers. Killed the argument telling whether it's kernel or userland pointer, killed dead code, updated callers.
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Alexander Viro authored
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Alexander Viro authored
- trivial annotation in several places in drivers/mtd - a bunch of debugging printks switched from %x to %llx (they get 64bit values) - in doc200[01].c fixed type of (unused) last argument in their doc_read_ecc().
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Alexander Viro authored
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Alexander Viro authored
DVD_LU_SEND_{AGID,TITLE_KEY} can be legitimately rejected; in that case we should not spew into logs. -
Andries E. Brouwer authored
Updating my source to 2.6.7 I see that you applied some nonsense garbage patch. Please undo. [ Note by Linus: the fact that DOS_EXTENDED_PARTITION is 5, and we're iterating over slots 1-4 in the partition table, are two totally unrelated things. Using the symbolic constant does indeed not make any sense at all here, as Andries so eloquently points out. ]
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Benjamin Herrenschmidt authored
The exception rewrite contains a small bug that prevents bring up of CPUs on logically partitioned machines. The kernel is trying to zero the backlink on the new stack while running with relocation disabled, which potentially cause it to try to access an address outside of the region allowed in real mode. This seem to be a leftover from previous code as we also zero the backlink later after turning off the MMU. This patch removes the offending bit.
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Paul Mackerras authored
The whitespace in arch/ppc64/kernel/head.S is a bit all over the place. This patch fixes it up. This patch changes nothing other than whitespace. Signed-off-by:
Paul Mackerras <paulus@samba.org> Signed-off-by:
Linus Torvalds <torvalds@osdl.org>
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Paul Mackerras authored
Anton noticed in some traces that we were spending an awfully long time doing a memset. The ppc64 memset is basically unchanged from the ppc32 version, and it only does 4-byte stores and doesn't unroll the loop. Here's a memset that performs a bit better. I have been using it for 3 weeks now, and Anton has tested it on a variety of machines, without problems. Signed-off-by:
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Paul Mackerras authored
Somebody back in the mists of time decided that call_prom and rtas_call should return longs even though both of those bits of firmware run in 32-bit mode and produce a 32-bit result. To make life more interesting, the 32-bit result gets zero-extended to 64 bits, which makes checking for a -1 return value more complicated than it should be. This patch changes call_prom and rtas_call to return an int, and makes the corresponding changes to use ints for the variables used to hold those return values. While I was doing this I finally got annoyed enough with the strings of prom_print() and prom_print_hex() calls that we do to write a simple prom_printf. I deliberately didn't use snprintf because the execution environment is weird at this point - we aren't running at the address we are linked at just yet - and I didn't want to inflict that on any code outside this file. I also did a prom_debug() macro, which eliminated a few ifdefs. There are also a bunch of other minor cleanups. This patch makes very few algorithmic changes but does get rid of a lot of casts. :) I have been running with this patch for a couple of weeks, and Anton has tested it too. Signed-off-by:
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Roland McGrath authored
When I made get_user_pages support looking up a pte for the "gate" area, I assumed it would be part of the kernel's fixed mappings. On x86-64 running a 32-bit task, the 32-bit vsyscall DSO page still has no vma but has its pte allocated in the user mm in the normal fashion. This patch makes it use the generic page-table lookup calls rather than the shortcuts. With this, ptrace on x86-64 can access a 32-bit process's vsyscall page. The behavior on x86 is unchanged. Signed-off-by:
Roland McGrath <roland@redhat.com> Signed-off-by:
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Andrew Morton authored
From: Darren Williams <dsw@gelato.unsw.edu.au> include/asm/checksum.h:75: warning: `struct in6_addr' declared inside parameter list include/asm/checksum.h:75 Signed-off-by:
Andrew Morton <akpm@osdl.org> Signed-off-by:
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Andrew Morton authored
arch/i386/kernel/io_apic.c: In function `balanced_irq': arch/i386/kernel/io_apic.c:582: warning: no return statement in function returning non-void and clean things up a bit Signed-off-by:
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Andrew Morton authored
mm/vmscan.c: In function `kswapd': mm/vmscan.c:1139: warning: no return statement in function returning non-void Signed-off-by:
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Andrew Morton authored
From: NeilBrown <neilb@cse.unsw.edu.au> From: Josh Litherland <josh@emperorlinux.com> The XOR routine selection process is often confusing as it often doesn't choose the routine that measures the fastest, as sometime one routine is known to have better cache performance. This patch avoids the comparison when there is a known best choice, and makes the report more meaningful. Signed-off-by:
Neil Brown <neilb@cse.unsw.edu.au> Signed-off-by:
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Andrew Morton authored
From: NeilBrown <neilb@cse.unsw.edu.au> There is severe bit-rot in this code, which is to say that it doesn't work at all: an io error during read will do bad things. It should work better with this patch. Signed-off-by:
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Andrew Morton authored
From: Paul Mundt <lethal@Linux-SH.ORG> Nothing really interesting here, with the addition of several other Renesas boards, we just move the systemh directory to the renesas one to fit in better with the directory structure. Signed-off-by:
Paul Mundt <lethal@linux-sh.org> Signed-off-by:
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Andrew Morton authored
From: Paul Mundt <lethal@Linux-SH.ORG> This merges the remaining sh changes, random bug fixes, added syscalls, cache fixups, etc. Nothing really eventful. Signed-off-by:
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Andrew Morton authored
From: Paul Mundt <lethal@Linux-SH.ORG> This adds support for the SM501/VoyagerGX companion chip, used by the RTS7751R2D. Signed-off-by:
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Andrew Morton authored
From: Paul Mundt <lethal@Linux-SH.ORG> This adds support for the SH7705 and SH7300 subtypes and also updates some ST40-specific FRQCR handling code. Signed-off-by:
Alex Bennee <kernel-hacker@bennee.com> Signed-off-by:
Hiroshi DOYU <Hiroshi_DOYU@montavista.co.jp> Signed-off-by:
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Andrew Morton authored
From: Paul Mundt <lethal@Linux-SH.ORG> This updates the pci-auto code, as well as adding ops and fixups for the RTS7751R2D board. Signed-off-by:
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Andrew Morton authored
From: Paul Mundt <lethal@Linux-SH.ORG> This adds support for the Renesas Technology Sales RTS7751R2D board. Signed-off-by:
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Andrew Morton authored
From: Paul Mundt <lethal@Linux-SH.ORG> This adds support for the SH7300 solution engine board (a forward port of the 2.4 code). Signed-off-by:
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Andrew Morton authored
From: Paul Mundt <lethal@Linux-SH.ORG> This adds support for the SH7300 as well as the SH5-101/103 processors as well as specific board support for the RTS7751R2D. In addition to this, the sh early printk code is gutted so that we use the generic CONFIG_EARLY_PRINTK interfaces instead. Signed-off-by:
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Andrew Morton authored
From: Paul Mundt <lethal@Linux-SH.ORG> This fixes up a compile error occuring with ptep_get_and_clear() existing in pgalloc.h. We move it to a somewhat more sensible location instead, and take this opportunity to make some cleanups for use of generic code in the SH-3 case, etc. Signed-off-by:
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Andrew Morton authored
From: Paul Mundt <lethal@Linux-SH.ORG> This does a bit of IDE cleanup (in preparation for the SuperH generic IDE host driver). This also adds SuperH to the list of platforms that are interested in CONFIG_IDE_MAX_HWIFS. Signed-off-by:
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Andrew Morton authored
From: Paul Mundt <lethal@Linux-SH.ORG> This adds support for the Renesas Technology Sales HS7751RVoIP board. Signed-off-by:
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Andrew Morton authored
From: Paul Mundt <lethal@Linux-SH.ORG> This adds fixmap support for sh. Signed-off-by:
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Andrew Morton authored
From: Paul Mundt <lethal@Linux-SH.ORG> sh was using its own CONFIG_SH_EARLY_PRINTK, this is no longer necessary as we can easily work with the generic CONFIG_EARLY_PRINTK. Signed-off-by:
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Andrew Morton authored
From: Paul Mundt <lethal@Linux-SH.ORG> This updates the SuperH DMA driver, as well as cleaning up the registration interface. We also drop the use of bitfields in dma-sh since things like the SH4-202, 7751R, 7760, etc. all have a completely different set of register definitions. Signed-off-by:
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Andrew Morton authored
From: Paul Mundt <lethal@Linux-SH.ORG> This updates the sh dma-mapping code, as well as doing some cleanup in the consistent API. We also add a consistent_{alloc,free} to the machvec for platforms that need special handling. Signed-off-by: -
Andrew Morton authored
From: Paul Mundt <lethal@Linux-SH.ORG> This adds support for the SH-3's on-chip ADC (which is needed by things like the touchscreen, etc.). Signed-off-by:
Andriy Skulysh <askulysh@image.kiev.ua> Signed-off-by:
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Andrew Morton authored
From: William Lee Irwin III <wli@holomorphy.com> During stress testing at Oracle to determine the maximum number of clients 2.6 can service, it was discovered that the failure mode of excessive numbers of clients was kernel deadlock. The following patch removes the check if (nr_swap_pages > 0) from out_of_memory() as this heuristic fails to detect memory exhaustion due to pinned allocations, directly causing the aforementioned deadlock. Signed-off-by:
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Andrew Morton authored
From: "Chen, Kenneth W" <kenneth.w.chen@intel.com> Turn on CONFIG_HIGHMEM and CONFIG_HUGETLBFS. Try to config the hugetlb pool: [root@quokka]# echo 100 > /proc/sys/vm/nr_hugepages [root@quokka]# grep HugePage /proc/meminfo HugePages_Total: 100 HugePages_Free: 100 [root@quokka]# echo 20 > /proc/sys/vm/nr_hugepages [root@quokka]# grep HugePage /proc/meminfo HugePages_Total: 0 HugePages_Free: 0 [root@quokka]# echo 100 > /proc/sys/vm/nr_hugepages [root@quokka]# grep HugePage /proc/meminfo HugePages_Total: 100 HugePages_Free: 100 [root@quokka]# echo 0 > /proc/sys/vm/nr_hugepages [root@quokka]# grep HugePage /proc/meminfo HugePages_Total: 31 HugePages_Free: 31 The argument "count" passed to try_to_free_low() is the config parameter for desired hugetlb page pool size. But the implementation took that input argument as number of pages to free. It also decrement the config parameter as well. All give random behavior depend on how many hugetlb pages are in normal/highmem zone. A two line fix in try_to_free_low() would be: - if (!--count) - return 0; + if (count >= nr_huge_pages) + return count; But more appropriately, that function shouldn't return anything. Signed-off-by:
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Andrew Morton authored
From: Mika Kukkonen <mika@osdl.org> Fix various sparse "assignment expression in conditional" warnings in fs/ Signed-off-by:
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Andrew Morton authored
From: Andy Whitcroft <apw@shadowen.org> Being able to recover the configuration from a kernel is very useful and it would be nice to default this option to Yes. Currently, to have the config available both from the image (using extract-ikconfig) and via /proc we keep two copies of the original .config in the kernel. One in plain text and one gzip compressed. This is not optimal. This patch removes the plain text version of the configuration and updates the extraction tools to locate and use the gzip'd version of the file. This has the added bonus of providing us with the exact same results in both cases, the original .config; including the comments. Signed-off-by:
Andy Whitcroft <apw@shadowen.org> Signed-off-by:
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Andrew Morton authored
From: Pavel Machek <pavel@ucw.cz> This moves fix_processor_context() so that additional prototype is not needed, and adds context * to processor state saving functions, so that they can be used on SMP. It should be done this way from the beggining. Signed-off-by:
Pavel Machek <pavel@suse.cz> Signed-off-by:
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Andrew Morton authored
From: Pavel Machek <pavel@ucw.cz> Its very bad idea to freeze migration threads, as it crashes machine upon next call to "schedule()". In refrigerator, I had one "wake_up_process()" too many. This fixes it. Signed-off-by:
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