- 13 2月, 2007 37 次提交
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由 Ingo Molnar 提交于
close_files() can sometimes take long enough to trigger the soft lockup detector. Cc: Eric Dumazet <dada1@cosmosbay.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Tilman Schmidt 提交于
Reduce the number of kernel messages the Gigaset drivers produce in case of an excessively long device response, from one per character exceeding the limit to one per overlong message. Signed-off-by: NTilman Schmidt <tilman@imap.cc> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Tilman Schmidt 提交于
Do not lock the cardstate structure mutex earlier than necessary. Signed-off-by: NTilman Schmidt <tilman@imap.cc> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Eric Dumazet 提交于
oprofile hunting showed a stall in rw_verify_area(), because of triple indirection and potential cache misses. (file->f_path.dentry->d_inode->i_flock) By moving initialization of 'struct inode' pointer before the pos/count sanity tests, we allow the compiler and processor to perform two loads by anticipation, reducing stall, without prefetch() hints. Even x86 arch has enough registers to not use temporary variables and not increase text size. I validated this patch running a bench and studied oprofile changes, and absolute perf of the test program. Results of my epoll_pipe_bench (source available on request) on a Pentium-M 1.6 GHz machine Before : # ./epoll_pipe_bench -l 30 -t 20 Avg: 436089 evts/sec read_count=8843037 write_count=8843040 21.218390 samples per call (best value out of 10 runs) After : # ./epoll_pipe_bench -l 30 -t 20 Avg: 470980 evts/sec read_count=9549871 write_count=9549894 21.216694 samples per call (best value out of 10 runs) oprofile CPU_CLK_UNHALTED events gave a reduction from 5.3401 % to 2.5851 % for the rw_verify_area() function. Signed-off-by: NEric Dumazet <dada1@cosmosbay.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Randy Dunlap 提交于
Need to export com20020 symbols for com20020_cs also. WARNING: "com20020_found" [drivers/net/pcmcia/com20020_cs.ko] undefined! WARNING: "com20020_check" [drivers/net/pcmcia/com20020_cs.ko] undefined! Signed-off-by: NRandy Dunlap <randy.dunlap@oracle.com> Cc: Esben Nielsen <nielsen.esben@googlemail.com> Cc: Jeff Garzik <jeff@garzik.org> Cc: Dominik Brodowski <linux@dominikbrodowski.net> Cc: "David S. Miller" <davem@davemloft.net> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Heiko Carstens 提交于
3117df04 causes this: In file included from arch/s390/kernel/early.c:13: include/linux/lockdep.h:300: warning: "struct task_struct" declared inside parameter list include/linux/lockdep.h:300: warning: its scope is only this definition or declaration, which is probably not what you want Acked-by: NIngo Molnar <mingo@elte.hu> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Signed-off-by: NHeiko Carstens <heiko.carstens@de.ibm.com> Cc: <stable@kernel.org> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Horms 提交于
I've noticed that the boot options are not correct for in the documentation for kdump. The "init" keyword is not necessary, and causes a kernel panic when booting with an initrd on Fedora 5. [horms@verge.net.au: put original comment with the latest version of the patch] Signed-off-by: NJudith Lebzeelter <judith@osdl.org> Acked-by: NVivek Goyal <vgoyal@in.ibm.com> Signed-off-by: NSimon Horman <horms@verge.net.au> Cc: "Eric W. Biederman" <ebiederm@xmission.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Andrew Morton 提交于
Optimise swiotlb.c for size. text data bss dec hex filename 5009 89 64 5162 142a lib/swiotlb.o-before 4666 89 64 4819 12d3 lib/swiotlb.o-after For some reason my gcc (4.0.2) doesn't want to tailcall these things. swiotlb_sync_sg_for_device: pushq %rbp # movl $1, %r8d #, movq %rsp, %rbp #, call swiotlb_sync_sg # leave ret .size swiotlb_sync_sg_for_device, .-swiotlb_sync_sg_for_device .section .text.swiotlb_sync_sg_for_cpu,"ax",@progbits .globl swiotlb_sync_sg_for_cpu .type swiotlb_sync_sg_for_cpu, @function swiotlb_sync_sg_for_cpu: pushq %rbp # xorl %r8d, %r8d # movq %rsp, %rbp #, call swiotlb_sync_sg # leave ret Cc: Jan Beulich <jbeulich@novell.com> Cc: Andi Kleen <ak@suse.de> Cc: "Luck, Tony" <tony.luck@intel.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Haavard Skinnemoen 提交于
Access to chip-internal registers should always be native-endian. This is especially important for AVR32 since it's a big-endian architecture and the non-raw readl() and writel() macros are defined to do little-endian accesses. Signed-off-by: NHaavard Skinnemoen <hskinnemoen@atmel.com> Acked-by: NAndrew Victor <andrew@sanpeople.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Tomasz Kvarsin 提交于
While compiling my code with -Wconversion using gcc-trunk, I always get a bunch of warrning from headers, here is fix for them: __getblk is alawys called with unsigned argument, but it takes signed, the same story with __bread,__breadahead and so on. Signed-off-by: Tomasz Kvarsin Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Eric W. Biederman 提交于
The problem we were assuming that current->nsproxy->ipc_ns would never change while someone has our file in /proc/sysvipc/ file open. Given that this can change with both unshare and by passing the file descriptor to another process that assumption is occasionally wrong. Therefore this patch causes /proc/sysvipc/* to cache the namespace and increment it's count when we open the file and to decrement the count when we close the file, ensuring consistent operation with no surprises. Signed-off-by: NEric W. Biederman <ebiederm@xmission.com> Cc: Serge E. Hallyn <serue@us.ibm.com> Cc: Herbert Poetzl <herbert@13thfloor.at> Cc: Kirill Korotaev <dev@sw.ru> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Ahmed S. Darwish 提交于
Use ARRAY_SIZE macro already defined in kernel.h Signed-off-by: NAhmed S. Darwish <darwish.07@gmail.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Ahmed S. Darwish 提交于
Use ARRAY_SIZE macro already defined in kernel.h Signed-off-by: NAhmed S. Darwish <darwish.07@gmail.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Ahmed S. Darwish 提交于
Use ARRAY_SIZE macro already defined in kernel.h Signed-off-by: NAhmed S. Darwish <darwish.07@gmail.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Ahmed S. Darwish 提交于
A patch to use ARRAY_SIZE macro already defined in kernel.h Signed-off-by: NAhmed S. Darwish <darwish.07@gmail.com> Acked-by: NEvgeniy Polyakov <johnpol@2ka.mipt.ru> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Alan Cox 提交于
The problem is various drivers legally validly and sensibly try to claim IRQs but the kernel insists on vomiting forth a giant irrelevant debugging spew when the types clash. Edit kernel/irq/manage.c go down to mismatch: in setup_irq() and ifdef out the if clause that checks for mismatches. It'll then just do the right thing and work sanely. For the current -mm kernel this will do the trick (and moves it into shared irq debugging as in debug mode the info spew is useful). I've had a variant of this in my private tree for some time as I got fed up on the mess on boxes where old legacy IRQs get reused. Signed-off-by: NAlan Cox <alan@redhat.com> Cc: Arjan van de Ven <arjan@infradead.org> Cc: Ingo Molnar <mingo@elte.hu> Cc: David Woodhouse <dwmw2@infradead.org> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 David Woodhouse 提交于
Drivers registering IRQ handlers with SA_SHIRQ really ought to be able to handle an interrupt happening before request_irq() returns. They also ought to be able to handle an interrupt happening during the start of their call to free_irq(). Let's test that hypothesis.... [bunk@stusta.de: Kconfig fixes] Signed-off-by: NDavid Woodhouse <dwmw2@infradead.org> Cc: Arjan van de Ven <arjan@infradead.org> Signed-off-by: NJesper Juhl <jesper.juhl@gmail.com> Signed-off-by: NIngo Molnar <mingo@elte.hu> Signed-off-by: NAdrian Bunk <bunk@stusta.de> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Nick Piggin 提交于
Fix for inotify read bug (bugzilla.kernel.org #6999) Problem Description: When reading from an inotify device with an insufficient sized buffer, read(2) will return 0 with no errno set. This is because of an logically incorrect action from the user program thus should return an more logical value. My suggestion is return -EINVAL as for bind(2). This patch is based on the proposal from Ryan <wolf0403@hotmail.com>, and feedback from John McCutchan <john@johnmccutchan.com>. Return -EINVAL if we have not passed in enough buffer space to read a single inotify event, rather than 0 which indicates that there is nothing to read. Signed-off-by: NNick Piggin <npiggin@suse.de> Acked-by: N"John McCutchan" <john@johnmccutchan.com> Cc: Ryan <wolf0403@hotmail.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Christoph Hellwig 提交于
Iterate over sb->s_inodes instead of sb->s_files in add_dquot_ref. This reduces list search and lock hold time aswell as getting rid of one of the few uses of file_list_lock which Ingo identified as a scalability problem. Previously we called dq_op->initialize for every inode handing of a writeable file that wasn't initialized before. Now we're calling it for every inode that has a non-zero i_writecount, aka a writeable file descriptor refering to it. Thanks a lot to Jan Kara for running this patch through his quota test harness. Signed-off-by: NChristoph Hellwig <hch@lst.de> Signed-off-by: NJan Kara <jack@suse.cz> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Christoph Hellwig 提交于
Remove_dquot_ref can move to dqout.c instead of beeing in inode.c under #ifdef CONFIG_QUOTA. Also clean the resulting code up a tiny little bit by testing sb->dq_op earlier - it's constant over a filesystems lifetime. Signed-off-by: NChristoph Hellwig <hch@lst.de> Cc: Jan Kara <jack@ucw.cz> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Martin Peschke 提交于
The return value of scnprintf() never exceeds @size. Signed-off-by: NMartin Peschke <mp3@de.ibm.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Dan Aloni 提交于
This patch fixes the documentation of nfsroot to match NFS_DEF_FILE_IO_SIZE. Or perhaps we need to change NFS_DEF_FILE_IO_SIZE to match the documentation? Signed-off-by: NDan Aloni <da-x@monatomic.org> Cc: "David S. Miller" <davem@davemloft.net> Cc: Trond Myklebust <trond.myklebust@fys.uio.no> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Jiri Slaby 提交于
Cyclades no longer serves the 2 e-mails listed in MAINTAINERS. Remove them and mark those entries as Orphaned. Signed-off-by: NJiri Slaby <jirislaby@gmail.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Robert P. J. Day 提交于
Since quota.h declares a R/W semaphore, it should include rwsem.h explicitly. Signed-off-by: NRobert P. J. Day <rpjday@mindspring.com> Acked-by: NJan Kara <jack@suse.cz> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Richard Knutsson 提交于
Remove labs() since it is not used/needed. Signed-off-by: NRichard Knutsson <ricknu-0@student.ltu.se> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Jiri Slaby 提交于
Use pci_device_id struct instead of ushort array. Add MODULE_DEVICE_TABLE. Signed-off-by: NJiri Slaby <jirislaby@gmail.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Jiri Slaby 提交于
Use more PCI_DEVICE macro Signed-off-by: NJiri Slaby <jirislaby@gmail.com> Acked-by: Wim Van Sebroeck <wim@iguana.be> (alim7101_wdt.c part) Cc: Michael Buesch <mb@bu3sch.de> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Andreas Gruenbacher 提交于
Here is a bugfix to d_path. First, when d_path() hits a lazily unmounted mount point, it tries to prepend the name of the lazily unmounted dentry to the path name. It gets this wrong, and also overwrites the slash that separates the name from the following pathname component. This is demonstrated by the attached test case, which prints "getcwd returned d_path-bugsubdir" with the bug. The correct result would be "getcwd returned d_path-bug/subdir". It could be argued that the name of the root dentry should not be part of the result of d_path in the first place. On the other hand, what the unconnected namespace was once reachable as may provide some useful hints to users, and so that seems okay. Second, it isn't always possible to tell from the __d_path result whether the specified root and rootmnt (i.e., the chroot) was reached: lazy unmounts of bind mounts will produce a path that does start with a non-slash so we can tell from that, but other lazy unmounts will produce a path that starts with a slash, just like "ordinary" paths. The attached patch cleans up __d_path() to fix the bug with overlapping pathname components. It also adds a @fail_deleted argument, which allows to get rid of some of the mess in sys_getcwd(). Grabbing the dcache_lock can then also be moved into __d_path(). The patch also makes sure that paths will only start with a slash for paths which are connected to the root and rootmnt. The @fail_deleted argument could be added to d_path() as well: this would allow callers to recognize deleted files, without having to resort to the ambiguous check for the " (deleted)" string at the end of the pathnames. This is not currently done, but it might be worthwhile. Signed-off-by: NAndreas Gruenbacher <agruen@suse.de> Cc: Neil Brown <neilb@suse.de> Cc: Al Viro <viro@zeniv.linux.org.uk> Cc: Christoph Hellwig <hch@lst.de> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Robert P. J. Day 提交于
Replace the incorrect debugging check of "#ifdef NTFS_DEBUG" with just "#ifdef DEBUG". Signed-off-by: NRobert P. J. Day <rpjday@mindspring.com> Acked-by: NAnton Altaparmakov <aia21@cantab.net> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Andrew Morton 提交于
As pointed out in http://bugzilla.kernel.org/show_bug.cgi?id=7922, dynamic blockdev major allocation can hand out majors which LANANA has defined as being for local/experimental use. Cc: Torben Mathiasen <device@lanana.org> Cc: Greg KH <greg@kroah.com> Cc: Al Viro <viro@zeniv.linux.org.uk> Cc: Tomas Klas <tomas.klas@mepatek.cz> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Andrew Morton 提交于
As pointed out in http://bugzilla.kernel.org/show_bug.cgi?id=7922, dynamic chardev major allocation can hand out majors which LANANA has defined as being for local/experimental use. Cc: Torben Mathiasen <device@lanana.org> Cc: Greg KH <greg@kroah.com> Cc: Al Viro <viro@zeniv.linux.org.uk> Cc: Tomas Klas <tomas.klas@mepatek.cz> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 David Chinner 提交于
Don't hide buffer_unwritten behind buffer_delay() and remove the hack that clears unexpected buffer_unwritten() states now that it can't happen. Signed-off-by: NDave Chinner <dgc@sgi.com> Acked-by: NChristoph Hellwig <hch@lst.de> Cc: Timothy Shimmin <tes@sgi.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 David Chinner 提交于
Currently, XFS uses BH_PrivateStart for flagging unwritten extent state in a bufferhead. Recently, I found the long standing mmap/unwritten extent conversion bug, and it was to do with partial page invalidation not clearing the unwritten flag from bufferheads attached to the page but beyond EOF. See here for a full explaination: http://oss.sgi.com/archives/xfs/2006-12/msg00196.html The solution I have checked into the XFS dev tree involves duplicating code from block_invalidatepage to clear the unwritten flag from the bufferhead(s), and then calling block_invalidatepage() to do the rest. Christoph suggested that this would be better solved by pushing the unwritten flag into the common buffer head flags and just adding the call to discard_buffer(): http://oss.sgi.com/archives/xfs/2006-12/msg00239.html The following patch makes BH_Unwritten a first class citizen. Signed-off-by: NDave Chinner <dgc@sgi.com> Acked-by: NChristoph Hellwig <hch@lst.de> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Nick Piggin 提交于
Make mincore work for anon mappings, nonlinear, and migration entries. Based on patch from Linus Torvalds <torvalds@linux-foundation.org>. Signed-off-by: NNick Piggin <npiggin@suse.de> Acked-by: NHugh Dickins <hugh@veritas.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Benjamin Herrenschmidt 提交于
Add a NOPFN_REFAULT return code for vm_ops->nopfn() equivalent to NOPAGE_REFAULT for vmops->nopage() indicating that the handler requests a re-execution of the faulting instruction Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Arnd Bergmann <arnd.bergmann@de.ibm.com> Cc: Hugh Dickins <hugh@veritas.com> Cc: Christoph Hellwig <hch@lst.de> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Nick Piggin 提交于
Add a vm_insert_pfn helper, so that ->fault handlers can have nopfn functionality by installing their own pte and returning NULL. Signed-off-by: NNick Piggin <npiggin@suse.de> Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Arnd Bergmann <arnd.bergmann@de.ibm.com> Cc: Hugh Dickins <hugh@veritas.com> Cc: Christoph Hellwig <hch@lst.de> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Michael Hanselmann 提交于
Commit 40b20c25 by Len Brown introduced a null pointer dereference in the appledisplay driver. This patch fixes it. Signed-off-by: NMichael Hanselmann <linux-kernel@hansmi.ch> Cc: Len Brown <lenb@kernel.org> Cc: Greg KH <greg@kroah.com> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Richard Purdie <rpurdie@rpsys.net> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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- 12 2月, 2007 3 次提交
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由 Heiko Carstens 提交于
Commit 9ac7849e causes this on S390: drivers/built-in.o: In function `dmam_noncoherent_release': dma-mapping.c:(.text+0x1515c): undefined reference to `dma_free_noncoherent' drivers/built-in.o: In function `dmam_free_noncoherent': undefined reference to `dma_free_noncoherent' drivers/built-in.o: In function `dmam_alloc_noncoherent': undefined reference to `dma_alloc_noncoherent' make: *** [.tmp_vmlinux1] Error 1 Cc: Tejun Heo <htejun@gmail.com> Acked-by: NJeff Garzik <jeff@garzik.org> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Signed-off-by: NHeiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Jens Axboe 提交于
This improves performance considerably for sync requests when you have command queuing enabled. Signed-off-by: NJens Axboe <jens.axboe@oracle.com>
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由 Jens Axboe 提交于
We only really need it for a process going away, so move it to those locations. Signed-off-by: NJens Axboe <jens.axboe@oracle.com>
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