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2007-11-28sysfs: fix off-by-one error in fill_read_buffer()Miao Xie
I found that there is a off-by-one problem in the following code. Version: 2.6.24-rc2 File: fs/sysfs/file.c:118-122 Function: fill_read_buffer -------------------------------------------------------------------- count = ops->show(kobj, attr_sd->s_attr.attr, buffer->page); sysfs_put_active_two(attr_sd); BUG_ON(count > (ssize_t)PAGE_SIZE); -------------------------------------------------------------------- Because according to the specification of the sysfs and the implement of the show methods, the show methods return the number of bytes which would be generated for the given input, excluding the trailing null.So if the return value of the show methods equals PAGE_SIZE - 1, the buffer is full in fact. And if the return value equals PAGE_SIZE, the resulting string was already truncated,or buffer overflow occurred. This patch fixes an off-by-one error in fill_read_buffer. Signed-off-by: Miao Xie <miaox@cn.fujitsu.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Acked-by: Tejun Heo <teheo@suse.de> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-11-28kobject: two typo fixesJohannes Berg
This fixes two typos from commit 34358c26a2c96b2a068dc44e0ac602106a466bce. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-11-28UIO: add UIO documentation target to DocBook MakefileHans J Koch
Add the DocBook documentation for the Userspace I/O framework to the Makefile. Signed-off-by: Satoru Takeuchi <takeuchi_satoru@jp.fujitsu.com> Signed-off-by: Hans J Koch <hjk@linutronix.de> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-11-28UIO: fix up the UIO documentationHans J Koch
Remove references to the old uio_dummy demo module from UIO documentation. Add a small paragraph to make it clearer that UIO is not a universal driver interface. Signed-off-by: Hans J Koch <hjk@linutronix.de> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-11-28create /sys/.../power when CONFIG_PM is setDaniel Drake
The CONFIG_SUSPEND changes in 2.6.23 caused a regression under certain configuration conditions (SUSPEND=n, USB_AUTOSUSPEND=y) where all USB device attributes in sysfs (idVendor, idProduct, ...) silently disappeared, causing udev breakage and more. The cause of this is that the /sys/.../power subdirectory is now only created when CONFIG_PM_SLEEP is set, however, it should be created whenever CONFIG_PM is set to handle the above situation. The following patch fixes the regression. Signed-off-by: Daniel Drake <dsd@gentoo.org> Acked-by: Rafael J. Wysocki <rjw@sisk.pl> Cc: Alan Stern <stern@rowland.harvard.edu> Cc: Kay Sievers <kay.sievers@vrfy.org> Cc: stable <stable@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-11-28allow LEGACY_PTYS to be set to 0Kay Sievers
The count of legacy pty devices can be set by a kernel commandline parameter. For the distro kernel, we would like to disable all pty's by default, but keep the opportunity to request devices on the kernel commandline. Signed-off-by: Kay Sievers <kay.sievers@vrfy.org> Acked-by: Jean Delvare <jdelvare@suse.de> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-11-27Merge branch 'upstream-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/mfasheh/ocfs2 * 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mfasheh/ocfs2: ocfs2: reverse inline-data truncate args ocfs2: Fix comparison in ocfs2_size_fits_inline_data() ocfs2: Remove bug statement in ocfs2_dentry_iput() [PATCH] ocfs2: Remove expensive bitmap scanning ocfs2: log valid inode # on bad inode ocfs2: Filter -ENOSPC in mlog_errno() [PATCH] fs/ocfs2: Add missing "space" ocfs2: Reset journal parameters after s_mount_opt update
2007-11-27Merge branch 'for-linus' of git://www.linux-m32r.org/git/takata/linux-2.6_devLinus Torvalds
* 'for-linus' of git://www.linux-m32r.org/git/takata/linux-2.6_dev: m32r: Update sys_rt_sigsuspend m32r: Ignore warnings for unused syscalls m32r: Add missing syscalls
2007-11-27ocfs2: reverse inline-data truncate argsMark Fasheh
ocfs2_truncate() and ocfs2_remove_inode_range() had reversed their "set i_size" arguments to ocfs2_truncate_inline(). Fix things so that truncate sets i_size, and punching a hole ignores it. This exposed a problem where punching a hole in an inline-data file wasn't updating the page cache, so fix that too. Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2007-11-27ocfs2: Fix comparison in ocfs2_size_fits_inline_data()Mark Fasheh
This was causing us to prematurely push out inline data by one byte. Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2007-11-27ocfs2: Remove bug statement in ocfs2_dentry_iput()Mark Fasheh
The existing bug statement didn't take into account unhashed dentries which might not have a cluster lock on them. This could happen if a node exporting the file system via NFS is rebooted, re-exported to nfs clients and then unmounted. It's fine in this case to not have a dentry cluster lock. Just remove the bug statement and replace it with an error print, which does the proper checks. Though we want to know if something has happened which might have prevented a cluster lock from being created, it's definitely not necessary to panic the machine for this. Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2007-11-27[PATCH] ocfs2: Remove expensive bitmap scanningJan Kara
Enable expensive bitmap scanning only if DEBUG option is enabled. The bitmap scanning quite loads the CPU and on my machine the write throughput of dd if=/dev/zero of=/ocfs2/file bs=1M count=500 conv=sync improves from 37 MB/s to 45.4 MB/s in local mode... Signed-off-by: Jan Kara <jack@suse.cz> Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2007-11-27ocfs2: log valid inode # on bad inodeMark Fasheh
If the inode block isn't valid then we don't want to print the value from that, instead print the block number which was passed in (which should always be correct). Also, turn this into a debug print for now - folks who hit an actual problem always have other logs indicating what the source is. Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2007-11-27ocfs2: Filter -ENOSPC in mlog_errno()Mark Fasheh
It's almost never worth printing in that situation and we keep forgetting to manually filter it out. Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2007-11-27[PATCH] fs/ocfs2: Add missing "space"Joe Perches
Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2007-11-27ocfs2: Reset journal parameters after s_mount_opt updateMark Fasheh
Right now we're just setting them from the existing parameters, not the new ones that a remount specified. Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2007-11-27Merge git://git.kernel.org/pub/scm/linux/kernel/git/bart/ide-2.6Linus Torvalds
* git://git.kernel.org/pub/scm/linux/kernel/git/bart/ide-2.6: ide-scsi: use print_hex_dump from <linux/kernel.h> ide: More TSST drives with broken cable detection ali14xx: constify __initdata ide: remove bogus ide_fix_driveid() comment trm290: remove bogus init_hwif_trm290() comment piix: add HP compaq laptop to short cable list alim15x3: add Mitac 8317 and derivatives to ali_cable_override() ide: add TORiSAN model: CD-ROM CDR_U200 fw: 1.09 to DMA blacklist amd74xx: arm hack drivers/ide: Add missing "space" ide-cris: don't override ide_register_hw() result ide: move CONFIG_IDE_ETRAX to drivers/ide/Kconfig ide: add CONFIG_IDE_H8300 config option ide/Kconfig: fix mpc8xx host driver dependencies macide/q40ide: add missing __init tag to {macide,q40ide}_init() aec62xx: Fix kernel oops in driver's probe function ide: skip ide_wait_not_busy() on noprobe-disks siimage: remove resetproc() method ide: don't set PIO mode on pre-EIDE drives sis5513.c: Add Packard Bell EasyNote K5305 to laptops
2007-11-27Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/avi/kvm * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/avi/kvm: KVM: SVM: Fix FPU leak while emulating clts KVM: SVM: Unload guest fpu on vcpu_put() KVM: x86 emulator: Use emulator_write_emulated and not emulator_write_std KVM: x86 emulator: fix the saving of of the eip value KVM: x86 emulator: fix JMP_REL
2007-11-27Merge branch 'for-linus' of git://git.kernel.dk/linux-2.6-blockLinus Torvalds
* 'for-linus' of git://git.kernel.dk/linux-2.6-block: scatterlist: add more safeguards Revert "ll_rw_blk: temporarily enable max_segments tweaking" mmc: Add missing sg_init_table() call block: Fix memory leak in alloc_disk_node() alpha: fix sg_page breakage blktrace: Make sure BLKTRACETEARDOWN does the full cleanup.
2007-11-27Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband: IB/iser: Add missing counter increment in iser_data_buf_aligned_len() IB/ehca: Fix static rate regression mlx4_core: Fix state check in mlx4_qp_modify() IB/ipath: Normalize error return codes for posting work requests IB/ipath: Fix offset returned to ibv_modify_srq() IB/ipath: Fix error path in QP creation IB/ipath: Fix offset returned to ibv_resize_cq()
2007-11-27Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: Input: adds the context menu key (HUT GenDesc 0x84) Input: add definitions for frame forward and frame back keys Input: bf54x-keys - keypad does not exist on BF544 parts Input: gpio-keys - request and configure GPIOs Input: i8042 - add i8042.noloop quirk for MS Virtual Machine Sonypi: use synchronize_irq instead of sycnronize_sched sonypi: fit input devices into sysfs tree sony-laptop: fit input devices into sysfs tree
2007-11-27ide-scsi: use print_hex_dump from <linux/kernel.h>Denis Cheng
these utilities implemented in lib/hexdump.c are more handy, please use this. Bart: - s/KERN_DEBUG/KERN_CONT/ as pointed out by Randy - s/DUMP_PREFIX_OFFSET/DUMP_PREFIX_NONE/ - don't include ASCII dump - respect 80-columns limit Signed-off-by: Denis Cheng <crquan@gmail.com> Cc: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2007-11-27ide: More TSST drives with broken cable detectionPeter Missel
Add more TSST (Toshiba/Samsung) drives to the 'broken cable detection' blacklist. Signed-off-by: Peter Missel (peter.missel@onlinehome.de) Cc: Alan Cox <alan@redhat.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2007-11-27ali14xx: constify __initdataBartlomiej Zolnierkiewicz
Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2007-11-27ide: remove bogus ide_fix_driveid() commentBartlomiej Zolnierkiewicz
Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2007-11-27trm290: remove bogus init_hwif_trm290() commentBartlomiej Zolnierkiewicz
Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2007-11-27piix: add HP compaq laptop to short cable listBartlomiej Zolnierkiewicz
Port of Jeff's libata commit 54174db300ee1bac632d62e4ac37fe02e47d1f18 ("[libata] ata_piix: add HP compaq laptop to short cable list"). Cc: Jeff Garzik <jeff@garzik.org> Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2007-11-27alim15x3: add Mitac 8317 and derivatives to ali_cable_override()Bartlomiej Zolnierkiewicz
Port of Alan's patch for pata_ali.c. Cc: Alan Cox <alan@redhat.com> Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2007-11-27ide: add TORiSAN model: CD-ROM CDR_U200 fw: 1.09 to DMA blacklistBartlomiej Zolnierkiewicz
Based on the report from snowbat@gmail.com. Fixes kernel bugzilla bug #9195. Tested-by: snowbat@gmail.com Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2007-11-27amd74xx: arm hackAndrew Morton
drivers/ide/pci/amd74xx.c: In function `init_hwif_amd74xx': drivers/ide/pci/amd74xx.c:387: error: implicit declaration of function `pci_get_legacy_ide_irq' Cc: Russell King <rmk@arm.linux.org.uk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2007-11-27drivers/ide: Add missing "space"Joe Perches
Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2007-11-27ide-cris: don't override ide_register_hw() resultBartlomiej Zolnierkiewicz
* Don't override ide_register_hw() result and check if there is a hwif available to use. * MAX_HWIFS is user configurable nowadays so replace it by hard-coded value. * Remove the comment about ide_hwifs[]. Acked-by: Mikael Starvik <starvik@axis.com> Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2007-11-27ide: move CONFIG_IDE_ETRAX to drivers/ide/KconfigBartlomiej Zolnierkiewicz
* Move ETRAX_IDE and friends from arch/cris/arch-{v10,v32}/drivers/Kconfig to drivers/ide/Kconfig. * Don't force selecting ide-disk and ide-cd device drivers (please handle this through defconfig if necessary). * Make ETRAX_IDE depend on BROKEN for the time being (it doesn't even compile currently). Cc: Mikael Starvik <starvik@axis.com> Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2007-11-27ide: add CONFIG_IDE_H8300 config optionBartlomiej Zolnierkiewicz
Add a separate config option for ide-8300 host driver instead of depending on CONFIG_H8300. This change is a preparation for the future changes and also allows ide-h8300 to be disabled if needed. Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2007-11-27ide/Kconfig: fix mpc8xx host driver dependenciesBartlomiej Zolnierkiewicz
Only LWMON, IVMS8, IVML24 and TQM8xxL platforms have the needed defines (IDE0_BASE_OFFSET and friends) in the platform header file. Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2007-11-27macide/q40ide: add missing __init tag to {macide,q40ide}_init()Bartlomiej Zolnierkiewicz
Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2007-11-27aec62xx: Fix kernel oops in driver's probe functionAleksandar Radovanovic
Add pci_enable_device() to aec62xx probe function before doing any I/O. Original probe function tries to read from device's PCI region 4 before calling ide_setup_pci_device(). Since the device is not enabled at this point, on machines that have no firmware PCI initialization (e.g. ASUS WL-700gE router), corresponding PCI BAR is 0 and the following inb() causes a kernel oops. Signed-off-by: Aleksandar Radovanovic <biblbroks@sezampro.yu> Cc: Linus Torvalds <torvalds@linux-foundation.org>, Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2007-11-27ide: skip ide_wait_not_busy() on noprobe-disksJonas Stare
There is a problem in some hardware where the kernel will stall for 35 seconds waiting for disks that don't exist. This patch will skip waiting for the BSY-bit on IDE drives to go away if you set "hdx=noprobe" as a kernel option and the disk is not marked as 'present' (like when you set the geometry by hand). If no noprobe-option is set the code will work (more or less) as the original but if set the code will skip the ide_wait_not_busy() for that drive. Even if there would be a drive there and it is still busy afterwards it should not matter since it isn't probed for later. The code also honors the MAX_DRIVES variable instead of assuming that there will be two harddrives on the bus. Bart: minor cleanups Signed-off-by: Jonas Stare <jonas.stare@purplescout.se> CC: Andrew Morton <akpm@linux-foundation.org>, Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Alan Cox <alan@lxorguk.ukuu.org.uk> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2007-11-27siimage: remove resetproc() methodSergei Shtylyov
The intent behind siimage_reset() was probably to hard reset the interface and the SATA PHY but as the code writes to two reserved bits instead, it obviously has been ineffective from the start. So, just remove it. Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Cc: Alan Cox <alan@lxorguk.ukuu.org.uk> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2007-11-27ide: don't set PIO mode on pre-EIDE drivesSergei Shtylyov
Fix handling of the PIO modes for the pre-EIDE drives that did not support the PIO Flow Control Transfer Mode value (00001 nnn) of the Set Transfer Mode feature by skipping the actual mode programming. Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2007-11-27sis5513.c: Add Packard Bell EasyNote K5305 to laptopsGabriel Craciunescu
With newer kernels HDD in my old laptop is limited to UDMA 33. With this patch I get UDMA 100 again. Signed-off-by: Gabriel Craciunescu <nix.or.die@googlemail.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2007-11-28m32r: Update sys_rt_sigsuspendHirokazu Takata
Update sys_rt_sigsuspend() of arch/m32r/signal.c. This modification is derived from generic one of kernel/signal.c. Signed-off-by: Hirokazu Takata <takata@linux-m32r.org>
2007-11-28m32r: Ignore warnings for unused syscallsHirokazu Takata
checksyscalls.sh reports warnings for missing syscalls. But, on m32r, some legacy syscalls were removed elaborately. This patch kills warnings for obsolete syscalls, which are no longer used in the m32r kernel. Signed-off-by: Hirokazu Takata <takata@linux-m32r.org>
2007-11-28m32r: Add missing syscallsHirokazu Takata
Add the following 39 syscalls for m32r: sys_add_key, sys_request_key, sys_keyctl, sys_ioprio_set, sys_ioprio_get, sys_inotify_init, sys_inotify_add_watch, sys_inotify_rm_watch, sys_migrate_pages, sys_openat, sys_mkdirat, sys_mknodat, sys_fchownat, sys_futimesat, sys_fstatat64, sys_unlinkat, sys_renameat, sys_linkat, sys_symlinkat, sys_readlinkat, sys_fchmodat, sys_faccessat, sys_pselect6, sys_ppoll, sys_unshare, sys_set_robust_list, sys_get_robust_list, sys_splice, sys_sync_file_range, sys_tee, sys_vmsplice, sys_move_pages, sys_getcpu, sys_epoll_pwait, sys_utimensat, sys_signalfd, sys_timerfd, sys_eventfd, sys_fallocate Signed-off-by: Hirokazu Takata <takata@linux-m32r.org>
2007-11-27KVM: SVM: Fix FPU leak while emulating cltsAmit Shah
The clts code didn't use set_cr0 properly, so our lazy FPU processing wasn't being done by the clts instruction at all. (this isn't called on Intel as the hardware does the decode for us) Signed-off-by: Amit Shah <amit.shah@qumranet.com> Signed-off-by: Avi Kivity <avi@qumranet.com>
2007-11-27KVM: SVM: Unload guest fpu on vcpu_put()Avi Kivity
Not unloading the guest fpu can cause fpu leaks from guest to guest (or host to guest). Signed-off-by: Avi Kivity <avi@qumranet.com>
2007-11-27KVM: x86 emulator: Use emulator_write_emulated and not emulator_write_stdAmit Shah
emulator_write_std() is not implemented, and calling write_emulated should work just as well in place of write_std. Fixes emulator failures with the push r/m instruction. Signed-off-by: Amit Shah <amit.shah@qumranet.com> Signed-off-by: Avi Kivity <avi@qumranet.com>
2007-11-27KVM: x86 emulator: fix the saving of of the eip valueIzik Eidus
this make sure that no matter what is the operand size, all the value of the eip will be saved Signed-off-by: Izik Eidus <izike@qumranet.com> Signed-off-by: Avi Kivity <avi@qumranet.com>
2007-11-27KVM: x86 emulator: fix JMP_RELIzik Eidus
Change JMP_REL to call to register_address_increment(): the operands size should not effect the calculation of the eip, instead the ad_bytes should affect it. Signed-off-by: Izik Eidus <izike@qumranet.com> Signed-off-by: Avi Kivity <avi@qumranet.com>
2007-11-27scatterlist: add more safeguardsTejun Heo
Add more safeguards to protect against misinterpreting a chain entry as a normal scatterlist and vice-versa. * Make sure the entry isn't a chain when assigning and reading a normal sg. * Clear offset and length when chaining. Signed-off-by: Tejun Heo <htejun@gmail.com> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>