- 19 Mar, 2008 25 commits
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Chuck Lever authored
During a remount based on the mount options displayed in /proc/mounts, we want to preserve the original behavior of the mount request. Let's save the original setting of the "port=" mount option in the mount's nfs_server structure. This allows us to simplify the default behavior of port setting for NFSv4 mounts: by default, NFSv2/3 mounts first try an RPC bind to determine the NFS server's port, unless the user specified the "port=" mount option; Users can force the client to skip the RPC bind by explicitly specifying "port=<value>". NFSv4, by contrast, assumes the NFS server port is 2049 and skips the RPC bind, unless the user specifies "port=". Users can force an RPC bind for NFSv4 by explicitly specifying "port=0". I added a couple of extra comments to clarify this behavior. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Cc: Miklos Szeredi <miklos@szeredi.hu> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
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Chuck Lever authored
Clean up: make data types of fields in nfs_parsed_mount_options more consistent with other uses. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
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Chuck Lever authored
Clean up: use %u instead of %d when displaying NFS mount options. Nit: Fix reporting of "namlen=" option in nfs_show_mount_stats. The mount option is called "namlen" without the "e". Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
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Jeff Layton authored
Currently, the NFS readdir decoders have a workaround for buggy servers that send an empty readdir response with the EOF bit unset. If the server sends a malformed response in some cases, this workaround kicks in and just returns an empty response rather than returning a proper error to the caller. This patch does 3 things: 1) have malformed responses with no entries return error (-EIO) 2) preserve existing workaround for servers that send empty responses with the EOF marker unset. 3) Add some comments to clarify the logic in decode_readdir(). Signed-off-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
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Jeff Layton authored
Currently, the NFS readdir decoders have a workaround for buggy servers that send an empty readdir response with the EOF bit unset. If the server sends a malformed response in some cases, this workaround kicks in and just returns an empty response rather than returning a proper error to the caller. This patch does 3 things: 1) have malformed responses with no entries return error (-EIO) 2) preserve existing workaround for servers that send empty responses with the EOF marker unset. 3) Add some comments to clarify the logic in nfs3_xdr_readdirres(). Signed-off-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
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Jeff Layton authored
Currently, the NFS readdir decoders have a workaround for buggy servers that send an empty readdir response with the EOF bit unset. If the server sends a malformed response in some cases, this workaround kicks in and just returns an empty response rather than returning a proper error to the caller. This patch does 3 things: 1) have malformed responses with no entries return error (-EIO) 2) preserve existing workaround for servers that send empty responses with the EOF marker unset. 3) Add some comments to clarify the logic in nfs_xdr_readdirres(). Signed-off-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
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Fred Isaman authored
Signed-off-by: Fred Isaman <iisaman@citi.umich.edu> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
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Fred authored
Both flush functions have the same error handling routine. Pull it out as a function. Signed-off-by: Fred Isaman <iisaman@citi.umich.edu> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
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Trond Myklebust authored
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Fred Isaman authored
Ignoring the return value from nfs_pageio_add_request can cause deadlocks. In read path: call nfs_pageio_add_request from readpage_async_filler assume at this point that there are requests already in desc, that can't be merged with the current request. so nfs_pageio_doio is fired up to clear out desc. assume something goes wrong in setting up the io, so desc->pg_error is set. This causes nfs_pageio_add_request to return 0, *WITHOUT* adding the original request. BUT, since return code is ignored, readpage_async_filler assumes it has been added, and does nothing further, leaving page locked. do_generic_mapping_read will eventually call lock_page, resulting in deadlock In write path: page is marked dirty by generic_perform_write nfs_writepages is called call nfs_pageio_add_request from nfs_page_async_flush assume at this point that there are requests already in desc, that can't be merged with the current request. so nfs_pageio_doio is fired up to clear out desc. assume something goes wrong in setting up the io, so desc->pg_error is set. This causes nfs_page_async_flush to return 0, *WITHOUT* adding the original request, yet marking the request as locked (PG_BUSY) and in writeback, clearing dirty marks. The next time a write is done to the page, deadlock will result as nfs_write_end calls nfs_update_request Signed-off-by: Fred Isaman <iisaman@citi.umich.edu> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/djbw/async_txLinus Torvalds authored
* 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/djbw/async_tx: async_tx: avoid the async xor_zero_sum path when src_cnt > device->max_xor fsldma: Fix the DMA halt when using DMA_INTERRUPT async_tx transfer.
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Alexey Starikovskiy authored
This reverts commit 2c81ce4c. It caused several new troubles (eg suspend slowdown bisected down to this patch by Pavel Machek), so just revert it for now. Signed-off-by: Alexey Starikovskiy <astarikovskiy@suse.de> Cc: Pavel Machek <pavel@suse.cz> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Linus Torvalds authored
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mingo/linux-2.6-sched-devel * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mingo/linux-2.6-sched-devel: sched: tune multi-core idle balancing sched: retune wake granularity sched: wakeup-buddy tasks are cache-hot sched: improve affine wakeups sched, net: socket wakeups are sync sched: clean up wakeup balancing, code flow sched: clean up wakeup balancing, rename variables sched: clean up wakeup balancing, move wake_affine()
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Linus Torvalds authored
Now that we handle all the special commands using REQ_TYPE_ATA_TASKFILE rather than using the old REQ_TYPE_ATA_CMD model, we need to also emulate the lack of full taskfile data that comes with the old command model (ie when commands are generated with the HDIO_DRIVE_CMD ioctl rather than using the HDIO_DRIVE_TASK[FILE] ioctls). In particular, this means that we should handle command completion the more relaxed way that the old drive_cmd_intr() code did. It allows commands to finish early even if they don't use up all the data that we thought we had for them. This fixes a regression seen by Anders Eriksson where some SMART commands sent by smartd would cause a boot-time system hang on his machine because the IDE command handling code didn't realize that the command had completed. Tested-by: Anders Eriksson <aeriksson@fastmail.fm> Cc: Jens Axboe <jens.axboe@oracle.com> Cc: Ingo Molnar <mingo@elte.hu> Acked-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/christoph/vmLinus Torvalds authored
* 'slab-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/christoph/vm: slub page alloc fallback: Enable interrupts for GFP_WAIT.
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Ingo Molnar authored
WAKE_IDLE is too agressive on multi-core CPUs with the new wake-affine code, keep it on for SMT/HT balancing alone (where there's no cache affinity at all between logical CPUs). Signed-off-by: Ingo Molnar <mingo@elte.hu>
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Ingo Molnar authored
reduce wake-up granularity for better interactivity. Signed-off-by: Ingo Molnar <mingo@elte.hu>
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Ingo Molnar authored
Wakeup-buddy tasks are cache-hot - this makes it a bit harder for the load-balancer to tear them apart. (but it's still possible, if the load is sufficiently assymetric) Signed-off-by: Ingo Molnar <mingo@elte.hu>
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Ingo Molnar authored
improve affine wakeups. Maintain the 'overlap' metric based on CFS's sum_exec_runtime - which means the amount of time a task executes after it wakes up some other task. Use the 'overlap' for the wakeup decisions: if the 'overlap' is short, it means there's strong workload coupling between this task and the woken up task. If the 'overlap' is large then the workload is decoupled and the scheduler will move them to separate CPUs more easily. ( Also slightly move the preempt_check within try_to_wake_up() - this has no effect on functionality but allows 'early wakeups' (for still-on-rq tasks) to be correctly accounted as well.) Signed-off-by: Ingo Molnar <mingo@elte.hu>
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Ingo Molnar authored
'sync' wakeups are a hint towards the scheduler that (certain) networking related wakeups likely create coupling between tasks. Signed-off-by: Ingo Molnar <mingo@elte.hu>
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Ingo Molnar authored
Clean up the code flow. No code changed: kernel/sched.o: text data bss dec hex filename 42521 2858 232 45611 b22b sched.o.before 42521 2858 232 45611 b22b sched.o.after md5: 09b31c44e9aff8666f72773dc433e2df sched.o.before.asm 09b31c44e9aff8666f72773dc433e2df sched.o.after.asm Signed-off-by: Ingo Molnar <mingo@elte.hu>
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Ingo Molnar authored
rename 'cpu' to 'prev_cpu'. No code changed: kernel/sched.o: text data bss dec hex filename 42521 2858 232 45611 b22b sched.o.before 42521 2858 232 45611 b22b sched.o.after md5: 09b31c44e9aff8666f72773dc433e2df sched.o.before.asm 09b31c44e9aff8666f72773dc433e2df sched.o.after.asm Signed-off-by: Ingo Molnar <mingo@elte.hu>
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Ingo Molnar authored
split out the affine-wakeup bits. No code changed: kernel/sched.o: text data bss dec hex filename 42521 2858 232 45611 b22b sched.o.before 42521 2858 232 45611 b22b sched.o.after md5: 9d76738f1272aa82f0b7affd2f51df6b sched.o.before.asm 09b31c44e9aff8666f72773dc433e2df sched.o.after.asm (the md5's changed because stack slots changed and some registers get scheduled by gcc in a different order - but otherwise the before and after assembly is instruction for instruction equivalent.) Signed-off-by: Ingo Molnar <mingo@elte.hu>
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Dan Williams authored
If the channel cannot perform the operation in one call to ->device_prep_dma_zero_sum, then fallback to the xor+page_is_zero path. This only affects users with arrays larger than 16 devices on iop13xx or 32 devices on iop3xx. Cc: <stable@kernel.org> Cc: Neil Brown <neilb@suse.de> Signed-off-by: Dan Williams <dan.j.williams@intel.com>
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Zhang Wei authored
The DMA_INTERRUPT async_tx is a NULL transfer, thus the BCR(count register) is 0. When the transfer started with a byte count of zero, the DMA controller will triger a PE(programming error) event and halt, not a normal interrupt. I add special codes for PE event and DMA_INTERRUPT async_tx testing. Signed-off-by: Zhang Wei <wei.zhang@freescale.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Dan Williams <dan.j.williams@intel.com>
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- 18 Mar, 2008 15 commits
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git://git.kernel.org/pub/scm/linux/kernel/git/viro/audit-currentLinus Torvalds authored
* 'audit.b49' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/audit-current: [PATCH] export sessionid alongside the loginuid in procfs
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Eric Paris authored
Signed-off-by: Eric Paris <eparis@redhat.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hidLinus Torvalds authored
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid: HID: update key codes for Apple aluminium HID: fix comment in hid_input_report() HID: BADPAD entry for NATSU Playstation USB adapter HID: Use DIV_ROUND_UP HID: remove HID_QUIRK_APPLE_ISO_KEYBOARD for 4th generation macbook
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git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6Linus Torvalds authored
* 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6: ACPI: Set flag DOCK_UNDOCKING when triggered via sysfs Revert "ACPI: video: Ignore devices that aren't present in hardware" asus_acpi: remove misleading mask Revert "ACPI: video: Ignore ACPI video devices that aren't present in hardware" thermal: delete "default y" thermal: re-document thermal units Revert "thermal: fix generic thermal I/F for hwmon" ACPI: fix ATA_ACPI build ACPI: battery: Don't return -EFAIL on broken packages. ACPI: lockdep warning on boot, 2.6.25-rc5
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git://git.kernel.org/pub/scm/linux/kernel/git/dtor/inputLinus Torvalds authored
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: Input: ALPS - fix forward/back buttons reversed on Acer 5520-5290 Input: ALPS - put secondary device in proper place in sysfs Input: wacom - add support for Bamboo1, BambooFun, and Cintiq 12WX Input: document i8042.noloop Input: add keyboard notifier documentation Input: ads7846 - fix uninitialized var warning Input: i8042 - add SNI RM support Input: i8042 - add Lenovo 3000 N100 to nomux blacklist Input: i8042 - fix warning on non-x86 builds Input: cobalt_btns - assorted fixes
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git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/selinux-2.6Linus Torvalds authored
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/selinux-2.6: make selinux_parse_opts_str() static
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git://git.kernel.dk/linux-2.6-blockLinus Torvalds authored
* 'for-linus' of git://git.kernel.dk/linux-2.6-block: Revert "unexport bio_{,un}map_user" relay: fix subbuf_splice_actor() adding too many pages The ps2esdi driver was marked as BROKEN more than two years ago due to being
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git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6Linus Torvalds authored
* 'drm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6: drm/ati_pcigart: fix the PCIGART to use drm_pci to allocate GART table. drm/radeon: fixup RV550 chip family drm/via: attempt again to stabilise the AGP DMA command submission. drm: Fix race that can lockup the kernel
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Michael Hanselmann authored
F5 and F6 have no second function printed on them. Thus their definitions have been removed from the table. KEY_CYCLEWINDOWS doesn't name the function of Mac OS X' Expose properly and because we couldn't find a better key code, we decided to use KEY_FN_F4 instead. We also changed KEY_BACK and KEY_FORWARD, which apply to browser functions, to KEY_PREVIOUSSONG and KEY_NEXTSONG, since the keys are intended to control a music player. Signed-off-by: Michael Hanselmann <linux-kernel@hansmi.ch> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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Jiri Kosina authored
The hid_input_report() in debug mode of course outputs the report itself, not the device report descriptor. Fix this error in comment. Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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Andrew Burton authored
Add quirk entry for BADPAD for the NATSU Playstation USB adapter. The adapter is supported under Linux, but with bad direction detection. Signed-off-by: Andrew Burton <adb@iinet.net.au> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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Julia Lawall authored
The kernel.h macro DIV_ROUND_UP performs the computation (((n) + (d) - 1) / (d)) but is perhaps more readable. Signed-off-by: Julia Lawall <julia@diku.dk> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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Tobias Mueller authored
4th generation MacBook (product id 0x022a) from Apple doesn't need HID_QUIRK_APPLE_ISO_KEYBOARD fix anymore. Signed-off-by: Tobias Mueller <Tobias_Mueller@twam.info> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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Len Brown authored
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Holger Macht authored
begin_undock() is only called when triggered via a acpi notify handler (pressing the undock button on the dock station), but complete_undock() is always called after the eject. So if a undock is triggered through a sysfs write, the flag DOCK_UNDOCKING has to be set for the dock station, too. Otherwise this will freeze the system hard. Signed-off-by: Holger Macht <hmacht@suse.de> Acked-by: Kristen Carlson Accardi <kristen.c.accardi@intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Len Brown <len.brown@intel.com>
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