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2012-01-03move fs/partitions to block/Gravatar Al Viro 36-10/+8
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-01-03make register_disk() staticGravatar Al Viro 1-1/+1
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-01-03vfs: fix the rest of sget() racesGravatar Al Viro 1-7/+13
unfortunately, just checking MS_BORN after having grabbed ->s_umount in sget() is not enough; places that pick superblock from a list and grab s_umount shared need the same check in addition to checking for ->s_root; otherwise three-way race between failing mount, sget() and such list-walker can leave us with list-walker coming *second*, when temporary active ref grabbed by sget() (to be dropped when sget() notices that original mount has failed by checking MS_BORN) has lead to deactivate_locked_super() from failing ->mount() *not* doing ->kill_sb() and just releasing ->s_umount. Once sget() gets through and notices that MS_BORN had never been set it will drop the active ref and fs will be shut down and kicked out of all lists, but it's too late for something like sync_supers(). Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-01-03vfs: new helper - vfs_ustat()Gravatar Al Viro 5-26/+17
... and bury user_get_super()/statfs_by_dentry() - they are purely internal now. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-01-03vfs: live vfsmounts never have NULL ->mnt_sbGravatar Al Viro 2-4/+3
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-01-03vfs: for usbfs, etc. internal vfsmounts ->mnt_sb->s_root == ->mnt_rootGravatar Al Viro 6-8/+8
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-01-03get rid of timer in kern/acct.cGravatar Al Viro 1-30/+10
... and clean it up a bit, while we are at it Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-01-03vfs: pipe.c is really non-modularGravatar Al Viro 1-7/+0
... so no exitcalls there. Not much would work if pipe(2) would stop working, after all... Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-01-03vfs: fix the stupidity with i_dentry in inode destructorsGravatar Al Viro 53-55/+1
Seeing that just about every destructor got that INIT_LIST_HEAD() copied into it, there is no point whatsoever keeping this INIT_LIST_HEAD in inode_init_once(); the cost of taking it into inode_init_always() will be negligible for pipes and sockets and negative for everything else. Not to mention the removal of boilerplate code from ->destroy_inode() instances... Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-01-03vfs: mnt_drop_write_file()Gravatar Al Viro 22-48/+55
new helper (wrapper around mnt_drop_write()) to be used in pair with mnt_want_write_file(). Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-01-03constify seq_file stuffGravatar Al Viro 2-10/+10
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-01-03vfs: make do_kern_mount() staticGravatar Al Viro 2-5/+1
the only user outside of fs/namespace.c has died Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-01-03vfs: convert fs_supers to hlistGravatar Al Viro 3-15/+16
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-01-03make nfs_follow_remote_path() handle ERR_PTR() passed as root_mntGravatar Al Viro 1-9/+9
... rather than duplicating that in callers Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-01-03vfs: kill ->mnt_devname use in afs printksGravatar Al Viro 1-2/+2
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-01-03btrfs, nfs, apparmor: don't pull mnt_namespace.h for no reason...Gravatar Al Viro 3-3/+0
it's not needed anymore; we used to, back when we had to do mount_subtree() by hand, complete with put_mnt_ns() in it. No more... Apparmor didn't need it since the __d_path() fix. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-01-03tomoyo: stop including hell knows whatGravatar Al Viro 1-8/+0
tomoyo/realpath.c needs exactly one include - that of common.h. It pulls everything the thing needs, without doing ridiculous garbage such as trying to include ../../fs/internal.h. If that alone doesn't scream "layering violation", I don't know what does; and these days it's all for nothing, since it fortunately does not use any symbols defined in there... Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-01-03vfs: dentry_reset_mounted() doesn't use vfsmount argumentGravatar Al Viro 1-3/+3
lose it Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-01-03unexport put_mnt_ns(), make create_mnt_ns() static outrightGravatar Al Viro 2-4/+1
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-01-03vfs: add missing parens in pnode.h macrosGravatar Al Viro 1-5/+5
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-01-03vfs: more mnt_parent cleanupsGravatar Al Viro 4-55/+29
a) mount --move is checking that ->mnt_parent is non-NULL before looking if that parent happens to be shared; ->mnt_parent is never NULL and it's not even an misspelled !mnt_has_parent() b) pivot_root open-codes is_path_reachable(), poorly. c) so does path_is_under(), while we are at it. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-01-03vfs: new internal helper: mnt_has_parent(mnt)Gravatar Al Viro 5-12/+18
vfsmounts have ->mnt_parent pointing either to a different vfsmount or to itself; it's never NULL and termination condition in loops traversing the tree towards root is mnt == mnt->mnt_parent. At least one place (see the next patch) is confused about what's going on; let's add an explicit helper checking it right way and use it in all places where we need it. Not that there had been too many, but... Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-01-03vfs: kill pointless helpers in namespace.cGravatar Al Viro 1-30/+5
mnt_{inc,dec}_count() is not cleaner than doing the corresponding mnt_add_count() directly and mnt_set_count() is not used at all. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-01-03new helpers: fh_{want,drop}_write()Gravatar Al Viro 3-19/+29
A bunch of places in nfsd does mnt_{want,drop}_write on vfsmount of export of given fhandle. Switched to obvious inlined helpers... Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-01-03switch a bunch of places to mnt_want_write_file()Gravatar Al Viro 16-42/+42
it's both faster (in case when file has been opened for write) and cleaner. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-01-03trim fs/internal.hGravatar Al Viro 5-28/+15
some stuff in there can actually become static; some belongs to pnode.h as it's a private interface between namespace.c and pnode.c... Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-01-03pull manipulations of rpc_cred inside alloc_nfs_open_context()Gravatar Al Viro 3-33/+22
No need to duplicate them in both callers; make it return ERR_PTR(-ENOMEM) on allocation failure instead of NULL and it'll be able to report rpc_lookup_cred() failures just fine. Callers are much happier that way... Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-01-03Revert "rtc: Disable the alarm in the hardware"Gravatar Linus Torvalds 1-34/+10
This reverts commit c0afabd3d553c521e003779c127143ffde55a16f. It causes failures on Toshiba laptops - instead of disabling the alarm, it actually seems to enable it on the affected laptops, resulting in (for example) the laptop powering on automatically five minutes after shutdown. There's a patch for it that appears to work for at least some people, but it's too late to play around with this, so revert for now and try again in the next merge window. See for example http://bugs.debian.org/652869 Reported-and-bisected-by: Andreas Friedrich <afrie@gmx.net> (Toshiba Tecra) Reported-by: Antonio-M. Corbi Bellot <antonio.corbi@ua.es> (Toshiba Portege R500) Reported-by: Marco Santos <marco.santos@waynext.com> (Toshiba Portege Z830) Reported-by: Christophe Vu-Brugier <cvubrugier@yahoo.fr> (Toshiba Portege R830) Cc: Jonathan Nieder <jrnieder@gmail.com> Requested-by: John Stultz <john.stultz@linaro.org> Cc: stable@kernel.org # for the versions that applied this Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-01-03hung_task: fix false positive during vforkGravatar Mandeep Singh Baines 1-4/+10
vfork parent uninterruptibly and unkillably waits for its child to exec/exit. This wait is of unbounded length. Ignore such waits in the hung_task detector. Signed-off-by: Mandeep Singh Baines <msb@chromium.org> Reported-by: Sasha Levin <levinsasha928@gmail.com> LKML-Reference: <1325344394.28904.43.camel@lappy> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Ingo Molnar <mingo@elte.hu> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: John Kacur <jkacur@redhat.com> Cc: stable@kernel.org Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-01-03security: Fix security_old_inode_init_security() when CONFIG_SECURITY is not setGravatar Jan Kara 2-2/+2
Commit 1e39f384bb01 ("evm: fix build problems") makes the stub version of security_old_inode_init_security() return 0 when CONFIG_SECURITY is not set. But that makes callers such as reiserfs_security_init() assume that security_old_inode_init_security() has set name, value, and len arguments properly - but security_old_inode_init_security() left them uninitialized which then results in interesting failures. Revert security_old_inode_init_security() to the old behavior of returning EOPNOTSUPP since both callers (reiserfs and ocfs2) handle this just fine. [ Also fixed the S_PRIVATE(inode) case of the actual non-stub security_old_inode_init_security() function to return EOPNOTSUPP for the same reason, as pointed out by Mimi Zohar. It got incorrectly changed to match the new function in commit fb88c2b6cbb1: "evm: fix security/security_old_init_security return code". - Linus ] Reported-by: Jorge Bastos <mysql.jorge@decimal.pt> Acked-by: James Morris <jmorris@namei.org> Acked-by: Mimi Zohar <zohar@us.ibm.com> Signed-off-by: Jan Kara <jack@suse.cz> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-01-03drm/radeon/kms/atom: fix possible segfault in pm setupGravatar Alexander Müller 1-1/+5
If we end up with no power states, don't look up current vddc. fixes: https://bugs.freedesktop.org/show_bug.cgi?id=44130 agd5f: fix patch formatting Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Cc: stable@vger.kernel.org Signed-off-by: Dave Airlie <airlied@redhat.com>
2012-01-02Merge branch 'devicetree/merge' of git://git.secretlab.ca/git/linux-2.6Gravatar Linus Torvalds 1-1/+1
* 'devicetree/merge' of git://git.secretlab.ca/git/linux-2.6: dt/device: Fix auxdata matching to handle entries without a name override
2012-01-01Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netGravatar Linus Torvalds 7-7/+17
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: netfilter: ctnetlink: fix timeout calculation ipvs: try also real server with port 0 in backup server skge: restore rx multicast filter on resume and after config changes mlx4_en: nullify cq->vector field when closing completion queue
2011-12-31Merge branch 'fix/asoc' of ↵Gravatar Linus Torvalds 1-0/+1
git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound * 'fix/asoc' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: ASoC: wm8776: add missing break in sample size switch
2011-12-31gspca: Fix falling back to lower isoc alt settingsGravatar Mauro Carvalho Chehab 1-1/+1
The current gspca core code has a regression where it no longer properly falls back to lower alt settings when there is not enough bandwidth. This causes many iso based usb-1 cameras to not work when plugged into a usb2 hub or a sandybridge chipset motherboard! This patch fixes this. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-12-31futex: Fix uninterruptible loop due to gate_areaGravatar Hugh Dickins 1-8/+20
It was found (by Sasha) that if you use a futex located in the gate area we get stuck in an uninterruptible infinite loop, much like the ZERO_PAGE issue. While looking at this problem, PeterZ realized you'll get into similar trouble when hitting any install_special_pages() mapping. And are there still drivers setting up their own special mmaps without page->mapping, and without special VM or pte flags to make get_user_pages fail? In most cases, if page->mapping is NULL, we do not need to retry at all: Linus points out that even /proc/sys/vm/drop_caches poses no problem, because it ends up using remove_mapping(), which takes care not to interfere when the page reference count is raised. But there is still one case which does need a retry: if memory pressure called shmem_writepage in between get_user_pages_fast dropping page table lock and our acquiring page lock, then the page gets switched from filecache to swapcache (and ->mapping set to NULL) whatever the refcount. Fault it back in to get the page->mapping needed for key->shared.inode. Reported-by: Sasha Levin <levinsasha928@gmail.com> Signed-off-by: Hugh Dickins <hughd@google.com> Cc: stable@vger.kernel.org Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-12-31netfilter: ctnetlink: fix timeout calculationGravatar Xi Wang 1-2/+2
The sanity check (timeout < 0) never works; the dividend is unsigned and so is the division, which should have been a signed division. long timeout = (ct->timeout.expires - jiffies) / HZ; if (timeout < 0) timeout = 0; This patch converts the time values to signed for the division. Signed-off-by: Xi Wang <xi.wang@gmail.com> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2011-12-31ipvs: try also real server with port 0 in backup serverGravatar Julian Anastasov 4-5/+11
We should not forget to try for real server with port 0 in the backup server when processing the sync message. We should do it in all cases because the backup server can use different forwarding method. Signed-off-by: Julian Anastasov <ja@ssi.bg> Signed-off-by: Simon Horman <horms@verge.net.au> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2011-12-30skge: restore rx multicast filter on resume and after config changesGravatar Florian Zumbiehl 1-0/+3
Restore skge hardware registers for multicast filtering to their appropriate values after system resume and after hardware restarts that are done when changing certain settings. Signed-off-by: Florian Zumbiehl <florz@florz.de> Acked-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-12-30mlx4_en: nullify cq->vector field when closing completion queueGravatar Yevgeny Petrilin 1-0/+1
Caused loss of connectivity when changing ring size. Signed-off-by: Yevgeny Petrilin <yevgenyp@mellanox.co.il> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-12-30Merge branch 'fixes' of ↵Gravatar Linus Torvalds 4-75/+65
http://ftp.arm.linux.org.uk/pub/linux/arm/kernel/git-cur/linux-2.6-arm * 'fixes' of http://ftp.arm.linux.org.uk/pub/linux/arm/kernel/git-cur/linux-2.6-arm: ARM: 7237/1: PL330: Fix driver freeze ARM: 7197/1: errata: Remove SMP dependency for erratum 751472 ARM: 7196/1: errata: Remove SMP dependency for erratum 720789 ARM: 7220/1: mmc: mmci: Fixup error handling for dma ARM: 7214/1: mmc: mmci: Fixup handling of MCI_STARTBITERR
2011-12-30Merge branch 'fixes' of ↵Gravatar Linus Torvalds 11-30/+48
git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc * 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: ARM: plat-orion: make gpiochip label unique enable uncompress log on cpuimx35sd cpuimx35: fix touchscreen support cpuimx35sd: fix Kconfig clock-imx35: fix reboot in internal boot mode dma: MX3_IPU fix depends imx_v4_v5_defconfig: update default configuration cpuimx25sd: fix Kconfig arm/imx: fix cpufreq section mismatch ARM:imx:fix pwm period value ARM: OMAP: hwmod data: fix iva and mailbox hwmods for OMAP 3
2011-12-30Merge branch 'for-linus' of ↵Gravatar Linus Torvalds 2-5/+6
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: sentelic - fix retrieving number of buttons Input: sentelic - release mutex upon register write failure
2011-12-30Merge branch 'for-linus' of ↵Gravatar Linus Torvalds 1-26/+3
git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client: ceph: disable use of dcache for readdir etc.
2011-12-30Merge branch 'v3.2-samsung-fixes-4' of ↵Gravatar Linus Torvalds 2-15/+15
git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung * 'v3.2-samsung-fixes-4' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung: ARM: EXYNOS: Remove duplicated SROMC static memory mapping ARM: SAMSUNG: Fix build error when selecting CPU_FREQ_S3C24XX_DEBUGFS on S3C2440
2011-12-30Revert "clockevents: Set noop handler in clockevents_exchange_device()"Gravatar Linus Torvalds 1-1/+0
This reverts commit de28f25e8244c7353abed8de0c7792f5f883588c. It results in resume problems for various people. See for example http://thread.gmane.org/gmane.linux.kernel/1233033 http://thread.gmane.org/gmane.linux.kernel/1233389 http://thread.gmane.org/gmane.linux.kernel/1233159 http://thread.gmane.org/gmane.linux.kernel/1227868/focus=1230877 and the fedora and ubuntu bug reports https://bugzilla.redhat.com/show_bug.cgi?id=767248 https://bugs.launchpad.net/ubuntu/+source/linux/+bug/904569 which got bisected down to the stable version of this commit. Reported-by: Jonathan Nieder <jrnieder@gmail.com> Reported-by: Phil Miller <mille121@illinois.edu> Reported-by: Philip Langdale <philipl@overt.org> Reported-by: Tim Gardner <tim.gardner@canonical.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Greg KH <gregkh@suse.de> Cc: stable@kernel.org # for stable kernels that applied the original Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-12-30Merge git://www.linux-watchdog.org/linux-watchdogGravatar Linus Torvalds 4-7/+12
* git://www.linux-watchdog.org/linux-watchdog: watchdog: iTCO_wdt.c - problems with newer hardware due to SMI clearing (part 2) watchdog: hpwdt: Changes to handle NX secure bit in 32bit path watchdog: sp805: Fix section mismatch in ID table. watchdog: move coh901327 state holders
2011-12-29Merge branch 'iommu/fixes' of ↵Gravatar Linus Torvalds 1-1/+1
git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu * 'iommu/fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu: iommu: Initialize domain->handler in iommu_domain_alloc()
2011-12-29Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netGravatar Linus Torvalds 3-9/+22
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: packet: fix possible dev refcnt leak when bind fail netem: dont call vfree() under spinlock and BH disabled netfilter: ctnetlink: fix scheduling while atomic if helper is autoloaded netfilter: ctnetlink: fix return value of ctnetlink_get_expect()
2011-12-29Merge branch 'perf-urgent-for-linus' of ↵Gravatar Linus Torvalds 3-4/+4
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip * 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: perf/x86: Fix raw_spin_unlock_irqrestore() usage oprofile, arm/sh: Fix oprofile_arch_exit() linkage issue
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