- 12 Apr, 2004 40 commits
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Andrew Morton authored
From: Christoph Hellwig <hch@lst.de> Kill magic ide/sound makedev scripts in scripts/. The userland MAKEDEV is the proper place and already has support for them.
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Andrew Morton authored
From: Martin Schwidefsky <schwidefsky@de.ibm.com> Just found an small bug in pgalloc for s390*. Comparing notes with other architectures I found that pte_alloc_one is sick for alpha and sparc64 as well.
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Andrew Morton authored
From: Stephen Smalley <sds@epoch.ncsc.mil> This patch fixes the type of the ssec pointer in the sk_free_security function. This has no current impact as the magic element is the top of each structure. Thanks to Chad Hanson of TCS for discovering the bug and submitting the patch.
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Andrew Morton authored
From: "Luiz Fernando N. Capitulino" <lcapitulino@prefeitura.sp.gov.br> drivers/media/dvb/frontends/stv0299.c:356: warning: unused variable `i'
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Andrew Morton authored
From: "Nguyen, Tom L" <tom.l.nguyen@intel.com> Adds MSI support for ia64. - Modified existing code in drivers/pci/msi.c and drivers/pci/msi.h to include MSI support on IA64 platform. - Based on the comments received from Zwane Mwaikambo and David Mosberger, this patch consolidates the vector allocators as assign_irq_vector(AUTO_ASSIGN) has the same semantics as ia64_alloc_vector() by converting the existing uses of ia64_alloc_vector() to assign_irq_vector(AUTO_ASSIGN). - Based on the comments received from Zwane Mwaikambo, this patch consolidates the semantics of vector allocator assign_irq_vector() in drivers/pci/msi.c into the relevant architecture's vector allocator assign_irq_vector() in arch/i386/kernel/io_apic.c. - Regarding vector allocation, this patch modifies the existing function assign_irq_vector() to maximize the number of allocated vectors to 188 before going -ENOSPC. - Based on your comments, this patch creates <asm-i386/msi.h>, <asm-ia64/msi.h> and <asm-x86_64/msi.h>, includes <asm/msi.h> from within drivers/pci/msi.h and then places all the code which is currently under ifdef in msi.h into the relevant architecture's <asm/msi.h> file. - Based on your comments, this patch places pci_vector_resources() in existing drivers/pci/msi.c in the relevant architecture implementations such as into arch/.../pci/irq.c.
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Andrew Morton authored
From: James Cleverdon <jamesclv@us.ibm.com> Bump up MAX_MP_BUSSES for summit/generic subarch to cope with big IBM x440 systems.
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Andrew Morton authored
From: James Cleverdon <jamesclv@us.ibm.com> Break out the definition of NR_IRQ_VECTORS, etc from irq_vectors.h into irq_vectors_limits.h, so we can change it per subarch without having code duplication for the rest of the file. Stick the same values back for mach-default, and override them for mach-summit/generic which needs bigger limits.
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Andrew Morton authored
From: Rusty Russell <rusty@rustcorp.com.au> Agustin Martin <agmartin@debian.org> pointed out that this doesn't work: options ide-mod options="ide=nodma hdc=cdrom" The quotes are understood by kernel/params.c (ie. it skips over spaces inside them), but are not stripped before handing to the underlying function. They should be.
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Andrew Morton authored
From: Hugh Dickins <hugh@veritas.com> Kevin P. Fleming pointed out that the 2.6 tmpfs does not allow writing huge sparse files. This is an unintended side-effect of the strict memory commit changes: which should make no difference. The solution is to treat the tmpfs files (of variable size) and the shmem objects (of fixed size) differently: sounds nasty but works out well. The shmem objects follow the VM preallocation convention as before, but the tmpfs files revert to allocation on demand as a filesystem would. If there's not enough memory to write to a tmpfs hole, it is reported as -ENOSPC rather than -ENOMEM, so the mmap writer gets SIGBUS rather than everyone else getting OOM-killed.
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Andrew Morton authored
From: William Lee Irwin III <wli@holomorphy.com> Chang bitmap_shift_left()/bitmap_shift_right() to have O(1) stackspace requirements. Given zeroed tail preconditions these implementations satisfy zeroed tail postconditions, which makes them compatible with whatever changes from Paul Jackson one may want to merge in the future. No particular effort was required to ensure this. A small (but hopefully forgiveable) cleanup is a spelling correction: s/bitmap_shift_write/bitmap_shift_right/ in one of the kerneldoc comments. The primary effect of the patch is to remove the MAX_BITMAP_BITS limitation, so restoring the NR_CPUS to be limited only by stackspace and slab allocator maximums. They also look vaguely more efficient than the current code, though as this was not done for performance reasons, no performance testing was done.
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Andrew Morton authored
From: Marcelo Tosatti <marcelo.tosatti@cyclades.com> From: Alain Knaff <alain.knaff@lll.lu> This patch adds support for floppy disks whose sectors are numbered starting at 0 rather than 1 as usual disks would be. This format is used for some CP/M disks, and also for certain music samplers (such as Ensoniq Ensoniq EPS 16plus). In order to use it, you need an fdutils with the current patch from http://fdutils.linux.lu as well, and then do setfdrpm /dev/fd0 dd zerobased sect=10 or setfdprm /dev/fd0 hd zerobased sect. In addtion, the patch also fixes my email addresses. I no longer use pobox.com.
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Andrew Morton authored
From: Rusty Russell <rusty@rustcorp.com.au> Brian Gerst's patch which moved __this_module out from module.h into the module post-processing had a side effect. genksyms didn't see the undefined symbols for modules without a module_init (or module_exit), and hence didn't generate a version for them, causing the kernel to be tainted. The simple solution is to always include the versions for these functions. Also includes two cleanups: 1) alloc_symbol is easier to use if it populates ->next for us. 2) add_exported_symbol should set owner to module, not head of module list (we don't use this field in entries in that list, fortunately).
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Andrew Morton authored
From: Brian Gerst <bgerst@didntduck.org> Move the __this_module structure to the modpost code where it really belongs.
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Andrew Morton authored
Eric Dumazet <dada1@cosmosbay.com> We can avoid evaluating `current' in a few places.
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Andrew Morton authored
From: Heiko Ronsdorf <hero@persua.de> - Remvoe a volatile which causes a warning via module_param() - Remove an unused variable.
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Andrew Morton authored
From: David Mosberger <davidm@napali.hpl.hp.com> Somebody recently pointed out a performance-anomaly to me where an unusual amount of time was being spent reading from /dev/urandom. The problem isn't really surprising as it happened only on >= 4-way machines and the random driver isn't terribly scalable the way it is written today. If scalability _really_ mattered, I suppose per-CPU data structures would be the way to go. However, I found that at least for 4-way machines, performance can be improved considerably with the attached patch. In particular, I saw the following performance on a 4-way ia64 machine: Test: 3 tasks running "dd if=/dev/urandom of=/dev/null bs=1024": throughput:
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Andrew Morton authored
From: Mike Waychison <Michael.Waychison@Sun.COM> Export complete_all for module use.
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Andrew Morton authored
From: Arjan van de Ven <arjanv@redhat.com> The patch below adds a few missing put_user()'s to the i810/i830 drm modules. Users reported oopses with 4g/4g split in action, and sparse annotations indeed found the offender in the function in question. I've kept the sparse __user annotations since those are generally useful anyway. I can't test it myself but a few people reported that the oopses went away so far.
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Andrew Morton authored
From: Trivial Patch Monkey <trivial@rustcorp.com.au> From: Thomas Molina <tmolina@cablespeed.com>
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Andrew Morton authored
From: Rusty Russell <rusty@rustcorp.com.au> These macros are redefined here. Previously definitions are in asm-ppc(64)/io.h
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Andrew Morton authored
From: Rusty Russell <rusty@rustcorp.com.au> From: maximilian attems <janitor@sternwelten.at> Add the Monkey to SubmittingPatches.
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Andrew Morton authored
From: Rusty Russell <rusty@rustcorp.com.au> From: colpatch@us.ibm.com The cpu_2_node[] array for i386 is initialized to all 0's, meaning that until modified at CPU bring-up, all CPUs are mapped to node 0. When CPUs are brought online, they are mapped to the appropriate node by various mechanisms, depending on the underlying hardware. When we unmap CPUs (hotplug time), we should return the mapping for the CPU that is going away to its original state, ie: 0. When this code was initially submitted, the misguided poster (me) made the mistake of putting a -1 in the cpu_2_node[] array for the CPU going away. This patch fixes this mistake, and allows code to get a valid node number for all valid CPU numbers. This is important, because most (if not all) callers do not error check the value returned by the cpu_to_node() macro, and they should not have to. The API specifies that a valid node number be returned for any valid CPU number.
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Andrew Morton authored
From: Rusty Russell <rusty@rustcorp.com.au> include/linux/device.h includes include/linux/ioport.h twice.
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Andrew Morton authored
From: Rusty Russell <rusty@rustcorp.com.au> From: Thomas Molina <tmolina@cablespeed.com>
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Andrew Morton authored
From: Rusty Russell <rusty@rustcorp.com.au> From: Stewart Smith <stewart@linux.org.au> A better explanation of the X86_GENERIC config option follows.
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Andrew Morton authored
From: Rusty Russell <rusty@rustcorp.com.au> From: Andreas Schwab <schwab@suse.de> I'm getting a warning when building for ia64 with MODVERSIONS enabled. This is a bug in genksyms, it can't cope with some arguments of __typeof__. The following patch will fix that. Actually the argument of __typeof__ is an abstract declarator, but the genksyms parser has no production for that; decl_specifier_seq also matches some invalid constructs, but I don't think this is a problem in practice, since the compiler will reject them.
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Andrew Morton authored
From: Rusty Russell <rusty@rustcorp.com.au> From: Petri Koistinen <petri.koistinen@iki.fi>
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Andrew Morton authored
From: Rusty Russell <rusty@rustcorp.com.au> From: Pavel Machek <pavel@ucw.cz> sysfs should be mounted on /sys these days.
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Andrew Morton authored
From: Rusty Russell <rusty@rustcorp.com.au> From: Josef 'Jeff' Sipek <jeffpc@optonline.net> I just noticed the nested ifdefs, and made it little more readable.
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Andrew Morton authored
From: Rusty Russell <rusty@rustcorp.com.au> From: John Levon <levon@movementarian.org>
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Andrew Morton authored
From: Rusty Russell <rusty@rustcorp.com.au> From: Hans Ulrich Niedermann <linux-kernel@n-dimensional.de> doc patch: close tag with ">"
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Andrew Morton authored
From: Rusty Russell <rusty@rustcorp.com.au> From: Hans Ulrich Niedermann <linux-kernel@n-dimensional.de> doc patch: Consistently use quotes for SGML attributes This makes it possible to process the SGML files without SHORTTAG YES.
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Andrew Morton authored
From: Rusty Russell <rusty@rustcorp.com.au> From: Ed L Cashin <ecashin@uga.edu> This small patch documents that bits 9, 10, and 11 are unused by the Linux kernel. The IA-32 Intel Architecture Software Developer's Manual says that these bits are available for programmer use.
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Andrew Morton authored
From: Trivial Patch Monkey <trivial@rustcorp.com.au> From: Ben Greear <greearb@candelatech.com> Depending on one's default emacs settings, the suggestion in the CodingStyle may or may not work. This patch adds a few more commands to ensure it works in more cases.
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Andrew Morton authored
From: Rusty Russell <rusty@rustcorp.com.au> From: Adrian Bunk <bunk@fs.tum.de> Some versions of ps print non-version lines when ps --version is invoked. grep them out.
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Andrew Morton authored
From: Joe Korty <joe.korty@ccur.com> This patch replaces the call to bitmap_shift_right() in bitmap_parse() with bitmap_shift_left(). I also prepended comments to the bitmap_shift_* functions defining what 'left' and 'right' means. This is under the theory that if I and all the reviewers were bamboozled, others in the future occasionally might be too.
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Andrew Morton authored
From: "La Monte H.P. Yarroll" <piggy@timesys.com> This is a Scott Wood patch against 2.6.3. Use gettimeofday() rather than xtime.tv_sec in sys_time(), since sys_stime() uses settimeofday() and thus subtracts the subtick correction from the new xtime. stime() used settimeofday(), but time() did not use gettimeofday(). Since settimeofday() subtracts out the current intra-tick correction, and nsec was 0 (since stime() only allows seconds), this resulted in xtime being slightly earlier than the time that was set. If time() had used gettimeofday(), the correction would have been applied, and everything would be fine. However, instead time just reads the current xtime.tv_sec, so if time() is called immediately after stime(), you'll usually get a value one second earlier.
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Andrew Morton authored
From: Chuck Lever <cel@citi.umich.edu> O_DIRECT|O_APPEND cannot possibly work on NFS, so NFS needs some way of preventing the user from setting this combination. We felt that the best way of implementing this restriction is to allow the filesytem to implement its own fcntl() handler. This patch does, that, and provide the appropriate handler for NFS. Additional details from Chuck: Forgetting O_DIRECT for a moment, O_APPEND writes on NFS don't work in any case when multiple clients are writing to a file, since an NFS client can never guarantee it knows where the true end of file is 100% of the time. it works as expected iff only one client writes to an O_APPEND file at a time. Multi-client O_APPEND writing doesn't seem to be a problem for any application I'm aware of. Since it can be made to behave in the multi-client case with careful application logic or by using file locking, I don't think we should disallow it. I want to drop the inode semaphore when doing NFS direct I/O because it is synchronous; holding the i_sem means we reduce direct I/O concurrency to one I/O per file at a time. the important thing sct was worried about was the case where a single client is writing with O_APPEND and O_DIRECT, and we don't hold the i_sem during the write. We must at least hold the i_sem when determining where the end of file is to do the O_APPEND write. In 2.6, I believe that is handled correctly in the VFS layer, so this is not an issue for 2.6, right?
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Andrew Morton authored
From: Herbert Xu <herbert@gondor.apana.org.au> This patch fixes the sysfs store functions for pmdisk when the input contains a trailing newline.
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Andrew Morton authored
From: Muli Ben-Yehuda <mulix@mulix.org> This patch add proper bounds checking to the sb_mixer.c code, found by the stanford checker[0]. It fixes bugzilla bugs 252[1], 253[2] and 254[3]. Patch is against 2.6.5-rc2. It was tested by Rene Herman on SN AWE64 gold and sound still works. The issue was previously discussed on lkml[4], but apparently no fix was applied. The patch is a bit more intrusive than I would've liked, but I don't think it can be helped without really intrusive changes. sb_devc has a pointer to an array (iomap) that is set at run time to point to arrays of variable sizes. The patch adds an 'iomap_sz' member to sb_devc that is set to the length of the array, and does bounds checking in sb_common_mixer_set() and smw_mixer_set() agains that.
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