- 06 Feb, 2008 40 commits
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Denys Vlasenko authored
Stop using unsigned _longs_ for printk buffer indexes. Log buffer is way smaller than 2 gigabytes and unsigned ints will work too . Indeed, they do work nicely on all 32-bit platforms where longs and ints are the same. With this patch, we have following size savings on amd64: text data bss dec hex filename 5997 313 17736 24046 5dee 2.6.23.1.t64/kernel/printk.o 5858 313 17700 23871 5d3f 2.6.23.1.printk.t64/kernel/printk.o Signed-off-by:
Denys Vlasenko <vda.linux@googlemail.com> Signed-off-by:
Andrew Morton <akpm@linux-foundation.org> Signed-off-by:
Linus Torvalds <torvalds@linux-foundation.org>
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Eric Dumazet authored
Instead of allocating a fix sized array of NR_CPUS pointers for percpu_data, we can use nr_cpu_ids, which is generally < NR_CPUS. Signed-off-by:
Eric Dumazet <dada1@cosmosbay.com> Cc: Christoph Lameter <clameter@sgi.com> Cc: "David S. Miller" <davem@davemloft.net> Signed-off-by:
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Joern Engel authored
After some archeology (see http://logfs.org/logfs/inode_state_bits) I finally figured out what the three I_DIRTY bits do. Maybe others would prefer less effort to reach this insight. Signed-off-by:
Joern Engel <joern@logfs.org> Signed-off-by:
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Jiri Olsa authored
Remove config variable DEBUG_RWLOCK, since it is not used. Signed-off-by:
Jiri Olsa <olsajiri@gmail.com> Acked-by:
Grant Grundler <grundler@parisc-linux.org> Acked-by:
Kyle McMartin <kyle@mcmartin.ca> Cc: Richard Henderson <rth@twiddle.net> Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru> Signed-off-by:
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Jiri Olsa authored
Remove dead config CONFIG_HAS_COMPAT_EPOLL_EVENT symbol. Signed-off-by:
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Robert P. J. Day authored
Given a number of places in the tree that need to calculate this value explicitly, might as well just create a macro for it. (akpm: must be implemented as a macro for callee typeof() usage) Signed-off-by:
Robert P. J. Day <rpjday@crashcourse.ca> Signed-off-by:
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Randy Dunlap authored
Use upper_32_bits(x) macro to handle shifts that may be >= the width of the data type. drivers/block/cciss.c: In function 'do_cciss_request': drivers/block/cciss.c:2655: warning: right shift count >= width of type drivers/block/cciss.c:2656: warning: right shift count >= width of type drivers/block/cciss.c:2657: warning: right shift count >= width of type drivers/block/cciss.c:2658: warning: right shift count >= width of type Signed-off-by:
Randy Dunlap <randy.dunlap@oracle.com> Cc: <mike.miller@hp.com> Signed-off-by:
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Miao Xie authored
I found that there is a buffer overflow problem in the following code. Version: 2.6.24-rc2, File: kernel/time/clocksource.c:417-432 -------------------------------------------------------------------- static ssize_t sysfs_show_available_clocksources(struct sys_device *dev, char *buf) { struct clocksource *src; char *curr = buf; spin_lock_irq(&clocksource_lock); list_for_each_entry(src, &clocksource_list, list) { curr += sprintf(curr, "%s ", src->name); } spin_unlock_irq(&clocksource_lock); curr += sprintf(curr, "\n"); return curr - buf; } ----------------------------------------------------------------------- sysfs_show_current_clocksources() also has the same problem though in practice the size of current clocksource's name won't exceed PAGE_SIZE. I fix the bug by using snprintf according to the specification of the kernel (Version:2.6.24-rc2,File:Documentation/filesystems/sysfs.txt) Fix sysfs_show_available_clocksources() and sysfs_show_current_clocksources() buffer overflow problem with snprintf(). Signed-off-by:Miao Xie <miaox@cn.fujitsu.com> Cc: WANG Cong <xiyou.wangcong@gmail.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: john stultz <johnstul@us.ibm.com> Signed-off-by:
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Roel Kluin authored
If count reaches zero, the loop ends, but the postfix decrement still subtracts: testing for 'count == 0' will not work. Signed-off-by:
Roel Kluin <12o3l@tiscali.nl> Reviewed-by:
Ray Lee <ray-lk@madrabbit.org> Acked-by:
Muli Ben-Yehuda <muli@il.ibm.com> Signed-off-by:
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Robert P. J. Day authored
Signed-off-by:
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Adrian Bunk authored
- make needlessly global functions static - make lkdtm_module_{init,exit}() as __{init,exit} Signed-off-by:Adrian Bunk <bunk@kernel.org> Cc: Ankita Garg <ankita@in.ibm.com> Signed-off-by:
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Adrian Bunk authored
Add a proper prototype for vty_init() in include/linux/vt_kern.h Signed-off-by:
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Adrian Bunk authored
Every file should include the headers containing the prototypes for its global functions (in this case sys_eventfd()). Signed-off-by:
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Adrian Bunk authored
Every file should include the headers containing the prototypes for its global functions (in this case sys_signalfd()). Signed-off-by:
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Adrian Bunk authored
Every file should include the headers containing the prototypes for its global functions. Signed-off-by:
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Adrian Bunk authored
Ad a proper prototype for migration_init() in include/linux/fs.h Signed-off-by:
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Adrian Bunk authored
Every file should include the headers containing the prototypes for its global functions (in this case {,un}register_reboot_notifier()). Signed-off-by: -
Adrian Bunk authored
Make the needlessly global srcu_readers_active() static. Signed-off-by:
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Adrian Bunk authored
Every file should include the headers containing the prototypes for its global functions (in this case sys_ptrace()). Signed-off-by:
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Adrian Bunk authored
Add a proper prototype for signals_init() in include/linux/signal.h Signed-off-by:
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Jeff Layton authored
smb_receive calls kernel_recvmsg with a size that's the minimum of the amount of buffer space in the kvec passed in or req->rq_rlen (which represents the length of the response). This does not take into account any data that was read in a request earlier pass through smb_receive. If the first pass through smb_receive receives some but not all of the response, then the next pass can call kernel_recvmsg with a size field that's too big. kernel_recvmsg can overrun into the next response, throwing off the alignment and making it unrecognizable. This causes messages like this to pop up in the ring buffer: smb_get_length: Invalid NBT packet, code=69 as well as other errors indicating that the response is unrecognizable. Typically this is seen on a smbfs mount under heavy I/O. This patch changes the code to use (req->rq_rlen - req->rq_bytes_recvd) instead instead of just req->rq_rlen, since that should represent the amount of unread data in the response. I think this is correct, but an ACK or NACK from someone more familiar with this code would be appreciated... Signed-off-by:
Jeff Layton <jlayton@redhat.com> Signed-off-by:
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Andrew Morton authored
- All implementations can be __devinit - The function prototypes were in asm/timex.h but they all must be the same, so create a single declaration in linux/timex.h. - uninline the sparc64 version to match the other architectures - Don't bother #defining ARCH_HAS_READ_CURRENT_TIMER to a particular value. [ezk@cs.sunysb.edu: fix build] Cc: "David S. Miller" <davem@davemloft.net> Cc: Haavard Skinnemoen <hskinnemoen@atmel.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Ingo Molnar <mingo@elte.hu> Cc: Andi Kleen <ak@suse.de> Signed-off-by:
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Adrian Bunk authored
This patch contains the scheduled removal of OSS drivers whose config options have been removed in 2.6.23. Signed-off-by:
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Vegard Nossum authored
This makes sure printk format strings contain no more than a single line. Signed-off-by:
Vegard Nossum <vegard.nossum@gmail.com> [the message was tweaked.] Signed-off-by:
OGAWA Hirofumi <hirofumi@mail.parknet.co.jp> Signed-off-by:
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Adrian Bunk authored
Add a proper prototype for show_interrupts() in include/linux/interrupt.h Signed-off-by:
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Andries E. Brouwer authored
Some time ago ( http://lkml.org/lkml/2007/6/19/128 ) I wrote about MNT_UNBINDABLE that it felt like a bug that it is not reset by "mount --make-private". Today I happened to see mount(8) and Documentation/sharedsubtree.txt and both document the version obtained by applying the little patch given in the above (and again below). So, the present kernel code is not according to specs and must be regarded as buggy. Specification in Documentation/sharedsubtree.txt: See state diagram: unbindable should become private upon make-private. Specification in mount(8): ... It's also possible to set up uni-directional propagation (with --make- slave), to make a mount point unavailable for --bind/--rbind (with --make-unbindable), and to undo any of these (with --make-private). Repeat of old fix-shared-subtrees-make-private.patch (due to Dirk Gerrits, René Gabriëls, Peter Kooijmans): Acked-by:
Ram Pai <linuxram@us.ibm.com> Cc: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by:
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Adrian Bunk authored
This patch removes the unused mm_{ptov,vtop}(). Signed-off-by:Greg Ungerer <gerg@uclinux.org> Acked-by:
Bryan Wu <bryan.wu@analog.com> Cc: Miles Bader <miles.bader@necel.com> Cc: Yoshinori Sato <ysato@users.sourceforge.jp> Signed-off-by:
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Adrian Bunk authored
After the APUS removal, some code can be removed. Signed-off-by:
Geert Uytterhoeven <geert@linux-m68k.org> Cc: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com> Cc: Karsten Keil <kkeil@suse.de> Cc: James Bottomley <James.Bottomley@steeleye.com> Cc: "Antonino A. Daplas" <adaplas@pol.net> Signed-off-by:
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Adrian Bunk authored
sysvipc_find_ipc() can become static. Signed-off-by:
Nadia Derbey <Nadia.Derbey@bull.net> Signed-off-by:
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Randy Dunlap authored
Is there some reason why register_cpu() is __devinit instead of __cpuinit ? Make it __cpuinit. Signed-off-by:
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David Woodhouse authored
This allows a flag to be set on loop devices so that when they are closed for the last time, they'll self-destruct. In general, so that we can automatically allocate loop devices (as with losetup -f) and have them disappear when we're done with them. In particular, right now, so that we can stop relying on the hackish special-case in umount(8) which kills off loop devices which were set up by 'mount -oloop'. That means we can stop putting crap in /etc/mtab which doesn't belong there, which means it can be a symlink to /proc/mounts, which means yet another writable file on the root filesystem is eliminated and the 'stateless' folks get happier... and OLPC trac #356 can be closed. The mount(8) side of that is at http://marc.info/?l=util-linux-ng&m=119362955431694&w=2 [akpm@linux-foundation.org: coding-style fixes] Signed-off-by:
David Woodhouse <dwmw2@infradead.org> Cc: Bernardo Innocenti <bernie@codewiz.org> Signed-off-by:
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Robin Getz authored
When passing a zero address to kallsyms_lookup(), the kernel thought it was a valid kernel address, even if it is not. This is because is_ksym_addr() called is_kernel_extratext() and checked against labels that don't exist on many archs (which default as zero). Since PPC was the only kernel which defines _extra_text, (in 2005), and no longer needs it, this patch removes _extra_text support. For some history (provided by Jon): http://ozlabs.org/pipermail/linuxppc-dev/2005-September/019734.html http://ozlabs.org/pipermail/linuxppc-dev/2005-September/019736.html http://ozlabs.org/pipermail/linuxppc-dev/2005-September/019751.html [akpm@linux-foundation.org: coding-style fixes] Signed-off-by:
Robin Getz <rgetz@blackfin.uclinux.org> Cc: David Woodhouse <dwmw2@infradead.org> Cc: Jon Loeliger <jdl@freescale.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Sam Ravnborg <sam@ravnborg.org> Signed-off-by:
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Matthias Kaehlcke authored
Parallel port: Convert port_mutex to the mutex API [akpm@linux-foundation.org: coding-style fixes] Signed-off-by:
Matthias Kaehlcke <matthias.kaehlcke@gmail.com> Signed-off-by:
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Matt Domsch authored
DMI autoload dcdbas on all Dell systems. This looks for BIOS Vendor or System Vendor == Dell, so this should work for systems both Dell-branded and those Dell builds but brands for others. It causes udev to load the dcdbas module at startup, which is used by tools called by HAL for wireless control and backlight control, among other uses. Thanks to Kay Sievers for figuring out how to do this with a single alias. Signed-off-by:
Matt Domsch <Matt_Domsch@dell.com> Cc: Kay Sievers <kay.sievers@vrfy.org> Signed-off-by:
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David Miller authored
I would like to potentially move the sparc64 IOMMU code over to using the nice new drivers/pci/iova.[ch] code for free area management.. In order to do that we have to detach the IOMMU page size assumptions which only really need to exist in the intel-iommu.[ch] code. This patch attempts to implement that. [akpm@linux-foundation.org: build fix] Signed-off-by:
David S. Miller <davem@davemloft.net> Acked-by:
Anil S Keshavamurthy <anil.s.keshavamurthy@intel.com> Signed-off-by:
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Pierre Peiffer authored
In the new implementation of the [sem|shm|msg]_lock[_check]() routines, we use the return value of ipc_lock() in container_of() without any check. But ipc_lock may return a errcode. The use of this errcode in container_of() may alter this errcode, and we don't want this. And in xxx_exit_ns, the pointer return by idr_find is of type 'struct kern_ipc_per'... Today, the code will work as is because the member used in these container_of() is the first member of its container (offset == 0), the errcode isn't changed then. But in the general case, we can't count on this assumption and this may lead later to a real bug if we don't correct this. Again, the proposed solution is simple and correct. But, as pointed by Nadia, with this solution, the same check will be done several times (in all sub-callers...), what is not very funny/optimal... Signed-off-by:
Pierre Peiffer <pierre.peiffer@bull.net> Cc: Nadia Derbey <Nadia.Derbey@bull.net> Signed-off-by:
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Jeff Garzik authored
Mostly in and around irq handlers. Signed-off-by:
Jeff Garzik <jgarzik@redhat.com> Cc: Russell King <rmk@arm.linux.org.uk> Cc: "Luck Tony" <tony.luck@intel.com> Cc: Roman Zippel <zippel@linux-m68k.org> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Acked-by:
Dmitry Torokhov <dtor@mail.ru> Cc: Karsten Keil <kkeil@suse.de> Acked-by:
"John W. Linville" <linville@tuxdriver.com> Cc: James Bottomley <James.Bottomley@steeleye.com> Cc: David Brownell <david-b@pacbell.net> Cc: "Antonino A. Daplas" <adaplas@pol.net> Acked-by:
Josh Boyer <jwboyer@linux.vnet.ibm.com> Acked-by:
Holger Schurig <hs4233@mail.mn-solutions.de> Signed-off-by:
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Dmitry Antipov authored
Add SIGIO-driven I/O for descriptors returned by inotify_init(). The thing may be enabled by convenient fcntl (fd, F_SETFL, O_ASYNC) call. Signed-off-by:
Dmitry Antipov <antipov@dev.rtsoft.ru> Cc: Robert Love <rlove@google.com> Cc: John McCutchan <ttb@tentacle.dhs.org> Cc: Michael Kerrisk <mtk-manpages@gmx.net> Signed-off-by:
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Aneesh Kumar K.V authored
ext2 file system was by default ignoring errors and continuing. This is not a good default as continuing on error could lead to file system corruption. Change the default to mark the file system readonly. Debian and ubuntu already does this as the default in their fstab. Signed-off-by:
Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> Cc: <linux-ext4@vger.kernel.org> Cc: Eric Sandeen <sandeen@redhat.com> Cc: Jan Kara <jack@ucw.cz> Cc: Dave Jones <davej@codemonkey.org.uk> Cc: Chuck Ebbert <cebbert@redhat.com> Signed-off-by:
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Aneesh Kumar K.V authored
This fixes some instances where we were continuing after calling ext2_error. ext2_error call panic only if errors=panic mount option is set. So we need to make sure we return correctly after ext2_error call. Signed-off-by:
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