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2012-01-09Merge branch 'for_linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs * 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs: ext2/3/4: delete unneeded includes of module.h ext{3,4}: Fix potential race when setversion ioctl updates inode udf: Mark LVID buffer as uptodate before marking it dirty ext3: Don't warn from writepage when readonly inode is spotted after error jbd: Remove j_barrier mutex reiserfs: Force inode evictions before umount to avoid crash reiserfs: Fix quota mount option parsing udf: Treat symlink component of type 2 as / udf: Fix deadlock when converting file from in-ICB one to normal one udf: Cleanup calling convention of inode_getblk() ext2: Fix error handling on inode bitmap corruption ext3: Fix error handling on inode bitmap corruption ext3: replace ll_rw_block with other functions ext3: NULL dereference in ext3_evict_inode() jbd: clear revoked flag on buffers before a new transaction started ext3: call ext3_mark_recovery_complete() when recovery is really needed
2012-01-09Merge branch 'for-linus' of git://git.open-osd.org/linux-open-osdLinus Torvalds
* 'for-linus' of git://git.open-osd.org/linux-open-osd: ore: Must support none-PAGE-aligned IO ore: fix BUG_ON, too few sgs when reading ore: Fix crash in case of an IO error. ore: FIX breakage when MISC_FILESYSTEMS is not set
2012-01-09Merge branch 'for-linus' of git://oss.sgi.com/xfs/xfsLinus Torvalds
* 'for-linus' of git://oss.sgi.com/xfs/xfs: xfs: fix endian conversion issue in discard code
2012-01-09Merge branch 'usb-next' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb * 'usb-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (232 commits) USB: Add USB-ID for Multiplex RC serial adapter to cp210x.c xhci: Clean up 32-bit build warnings. USB: update documentation for usbmon usb: usb-storage doesn't support dynamic id currently, the patch disables the feature to fix an oops drivers/usb/class/cdc-acm.c: clear dangling pointer drivers/usb/dwc3/dwc3-pci.c: introduce missing kfree drivers/usb/host/isp1760-if.c: introduce missing kfree usb: option: add ZD Incorporated HSPA modem usb: ch9: fix up MaxStreams helper USB: usb-skeleton.c: cleanup open_count USB: usb-skeleton.c: fix open/disconnect race xhci: Properly handle COMP_2ND_BW_ERR USB: remove dead code from suspend/resume path USB: add quirk for another camera drivers: usb: wusbcore: Fix dependency for USB_WUSB xhci: Better debugging for critical host errors. xhci: Be less verbose during URB cancellation. xhci: Remove debugging about ring structure allocation. xhci: Remove debugging about toggling cycle bits. xhci: Remove debugging for individual transfers. ...
2012-01-09Merge branch 'char-misc-next' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc * 'char-misc-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: isl29020: Remove a redundant semi-colon from return statement BMP085: Remove redundant semi-colon from return statement drivers:misc: ti-st: DEBUG uart, baud rate mods drivers:misc: ti-st: flush UART upon fw failure drivers:misc: ti-st: protect registrations char_dev.c: fix up some whitespace errors s390: tape_class.h: remove kobj_map.h inclusion misc: ad525x_dpot: Add support for SPI module device table matching
2012-01-09ext2/3/4: delete unneeded includes of module.hPaul Gortmaker
Delete any instances of include module.h that were not strictly required. In the case of ext2, the declaration of MODULE_LICENSE etc. were in inode.c but the module_init/exit were in super.c, so relocate the MODULE_LICENCE/AUTHOR block to super.c which makes it consistent with ext3 and ext4 at the same time. Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com> Signed-off-by: Jan Kara <jack@suse.cz>
2012-01-09ext{3,4}: Fix potential race when setversion ioctl updates inodeDjalal Harouni
The EXT{3,4}_IOC_SETVERSION ioctl() updates i_ctime and i_generation without i_mutex. This can lead to a race with the other operations that update i_ctime. This is not a big issue but let's make the ioctl consistent with how we handle e.g. other timestamp updates and use i_mutex to protect inode changes. Signed-off-by: Djalal Harouni <tixxdz@opendz.org> Signed-off-by: Jan Kara <jack@suse.cz>
2012-01-09udf: Mark LVID buffer as uptodate before marking it dirtyJan Kara
When we hit EIO while writing LVID, the buffer uptodate bit is cleared. This then results in an anoying warning from mark_buffer_dirty() when we write the buffer again. So just set uptodate flag unconditionally. Reviewed-by: Namjae Jeon <linkinjeon@gmail.com> Signed-off-by: Jan Kara <jack@suse.cz>
2012-01-09ext3: Don't warn from writepage when readonly inode is spotted after errorJan Kara
WARN_ON_ONCE(IS_RDONLY(inode)) tends to trip when filesystem hits error and is remounted read-only. This unnecessarily scares users (well, they should be scared because of filesystem error, but the stack trace distracts them from the right source of their fear ;-). We could as well just remove the WARN_ON but it's not hard to fix it to not trip on filesystem with errors and not use more cycles in the common case so that's what we do. CC: stable@kernel.org Signed-off-by: Jan Kara <jack@suse.cz>
2012-01-09jbd: Remove j_barrier mutexJan Kara
j_barrier mutex is used for serializing different journal lock operations. The problem with it is that e.g. FIFREEZE ioctl results in process leaving kernel with j_barrier mutex held which makes lockdep freak out. Also hibernation code wants to freeze filesystem but it cannot do so because it then cannot hibernate the system because of mutex being locked. So we remove j_barrier mutex and use direct wait on j_barrier_count instead. Since locking journal is a rare operation we don't have to care about fairness or such things. CC: Andrew Morton <akpm@linux-foundation.org> Acked-by: Joel Becker <jlbec@evilplan.org> Signed-off-by: Jan Kara <jack@suse.cz>
2012-01-09reiserfs: Force inode evictions before umount to avoid crashJeff Mahoney
This patch fixes a crash in reiserfs_delete_xattrs during umount. When shrink_dcache_for_umount clears the dcache from generic_shutdown_super, delayed evictions are forced to disk. If an evicted inode has extended attributes associated with it, it will need to walk the xattr tree to locate and remove them. But since shrink_dcache_for_umount will BUG if it encounters active dentries, the xattr tree must be released before it's called or it will crash during every umount. This patch forces the evictions to occur before generic_shutdown_super by calling shrink_dcache_sb first. The additional evictions caused by the removal of each associated xattr file and dir will be automatically handled as they're added to the LRU list. CC: reiserfs-devel@vger.kernel.org CC: stable@kernel.org Signed-off-by: Jeff Mahoney <jeffm@suse.com> Signed-off-by: Jan Kara <jack@suse.cz>
2012-01-09reiserfs: Fix quota mount option parsingJan Kara
When jqfmt mount option is not specified on remount, we mistakenly clear s_jquota_fmt value stored in superblock. Fix the problem. CC: stable@kernel.org CC: reiserfs-devel@vger.kernel.org Signed-off-by: Jan Kara <jack@suse.cz>
2012-01-09udf: Treat symlink component of type 2 as /Jan Kara
Currently, we ignore symlink component of type 2. But mkisofs and other OS' seem to treat it as / so do the same for compatibility. Reported-by: "Gábor S." <otnaccess@hotmail.com> Signed-off-by: Jan Kara <jack@suse.cz>
2012-01-09udf: Fix deadlock when converting file from in-ICB one to normal oneJan Kara
During BKL removal in 2.6.38, conversion of files from in-ICB format to normal format got broken. We call ->writepage with i_data_sem held but udf_get_block() also acquires i_data_sem thus creating A-A deadlock. We fix the problem by dropping i_data_sem before calling ->writepage() which is safe since i_mutex still protects us against any changes in the file. Also fix pagelock - i_data_sem lock inversion in udf_expand_file_adinicb() by dropping i_data_sem before calling find_or_create_page(). CC: stable@kernel.org Reported-by: Matthias Matiak <netzpython@mail-on.us> Tested-by: Matthias Matiak <netzpython@mail-on.us> Reviewed-by: Namjae Jeon <linkinjeon@gmail.com> Signed-off-by: Jan Kara <jack@suse.cz>
2012-01-09udf: Cleanup calling convention of inode_getblk()Jan Kara
inode_getblk() always returned NULL and passed results in its parameters. Make the function return something useful - found block number. Signed-off-by: Jan Kara <jack@suse.cz>
2012-01-09ext2: Fix error handling on inode bitmap corruptionJan Kara
When insert_inode_locked() fails in ext2_new_inode() it most likely means inode bitmap got corrupted and we allocated again inode which is already in use. Also doing unlock_new_inode() during error recovery is wrong since the inode does not have I_NEW set. Fix the problem by informing about filesystem error and jumping to fail: (instead of fail_drop:) which doesn't call unlock_new_inode(). Reviewed-by: Eric Sandeen <sandeen@redhat.com> Signed-off-by: Jan Kara <jack@suse.cz>
2012-01-09ext3: Fix error handling on inode bitmap corruptionJan Kara
When insert_inode_locked() fails in ext3_new_inode() it most likely means inode bitmap got corrupted and we allocated again inode which is already in use. Also doing unlock_new_inode() during error recovery is wrong since inode does not have I_NEW set. Fix the problem by jumping to fail: (instead of fail_drop:) which declares filesystem error and does not call unlock_new_inode(). Reviewed-by: Eric Sandeen <sandeen@redhat.com> Signed-off-by: Jan Kara <jack@suse.cz>
2012-01-09ext3: replace ll_rw_block with other functionsZheng Liu
ll_rw_block() is deprecated. Thus we replace it with other functions. CC: Jan Kara <jack@suse.cz> Signed-off-by: Zheng Liu <wenqing.lz@taobao.com> Signed-off-by: Jan Kara <jack@suse.cz>
2012-01-08ext[34]: avoid i_nlink warnings triggered by drop_nlink/inc_nlink kludge in ↵Al Viro
symlink() Both ext3 and ext4 put the half-created symlink inode into the orphan list for a while (see the comment in ext[34]_symlink() for gory details). Then, if everything went fine, they pull it out of the orphan list and bump the link count back to 1. The thing is, inc_nlink() is going to complain about seeing somebody changing i_nlink from 0 to 1. With a good reason, since normally something like that is a bug. Explicit set_nlink(inode, 1) does the same thing as inc_nlink() here, but it does *not* complain - exactly because it should be usable in strange situations like this one. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-01-08exofs: oops after late failure in mountAl Viro
We have already set ->s_root, so ->put_super() is going to be called. Freeing ->s_fs_info is a bloody bad idea when it's going to be dereferenced very shortly... Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-01-08devpts: fix double-free on mount failureAl Viro
devpts_kill_sb() is called even if devpts_fill_super() fails; we should not do that kfree() in the latter, especially not with ->s_fs_info left pointing to freed object. Double kfree() is a Bad Thing(tm)... Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-01-08Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial: (53 commits) Kconfig: acpi: Fix typo in comment. misc latin1 to utf8 conversions devres: Fix a typo in devm_kfree comment btrfs: free-space-cache.c: remove extra semicolon. fat: Spelling s/obsolate/obsolete/g SCSI, pmcraid: Fix spelling error in a pmcraid_err() call tools/power turbostat: update fields in manpage mac80211: drop spelling fix types.h: fix comment spelling for 'architectures' typo fixes: aera -> area, exntension -> extension devices.txt: Fix typo of 'VMware'. sis900: Fix enum typo 'sis900_rx_bufer_status' decompress_bunzip2: remove invalid vi modeline treewide: Fix comment and string typo 'bufer' hyper-v: Update MAINTAINERS treewide: Fix typos in various parts of the kernel, and fix some comments. clockevents: drop unknown Kconfig symbol GENERIC_CLOCKEVENTS_MIGR gpio: Kconfig: drop unknown symbol 'CS5535_GPIO' leds: Kconfig: Fix typo 'D2NET_V2' sound: Kconfig: drop unknown symbol ARCH_CLPS7500 ... Fix up trivial conflicts in arch/powerpc/platforms/40x/Kconfig (some new kconfig additions, close to removed commented-out old ones)
2012-01-08Merge branch 'pm-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm * 'pm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (76 commits) PM / Hibernate: Implement compat_ioctl for /dev/snapshot PM / Freezer: fix return value of freezable_schedule_timeout_killable() PM / shmobile: Allow the A4R domain to be turned off at run time PM / input / touchscreen: Make st1232 use device PM QoS constraints PM / QoS: Introduce dev_pm_qos_add_ancestor_request() PM / shmobile: Remove the stay_on flag from SH7372's PM domains PM / shmobile: Don't include SH7372's INTCS in syscore suspend/resume PM / shmobile: Add support for the sh7372 A4S power domain / sleep mode PM: Drop generic_subsys_pm_ops PM / Sleep: Remove forward-only callbacks from AMBA bus type PM / Sleep: Remove forward-only callbacks from platform bus type PM: Run the driver callback directly if the subsystem one is not there PM / Sleep: Make pm_op() and pm_noirq_op() return callback pointers PM/Devfreq: Add Exynos4-bus device DVFS driver for Exynos4210/4212/4412. PM / Sleep: Merge internal functions in generic_ops.c PM / Sleep: Simplify generic system suspend callbacks PM / Hibernate: Remove deprecated hibernation snapshot ioctls PM / Sleep: Fix freezer failures due to racy usermodehelper_is_disabled() ARM: S3C64XX: Implement basic power domain support PM / shmobile: Use common always on power domain governor ... Fix up trivial conflict in fs/xfs/xfs_buf.c due to removal of unused XBT_FORCE_SLEEP bit
2012-01-08Merge git://git.kernel.org/pub/scm/linux/kernel/git/steve/gfs2-3.0-nmwLinus Torvalds
* git://git.kernel.org/pub/scm/linux/kernel/git/steve/gfs2-3.0-nmw: GFS2: local functions should be static GFS2: We only need one ACL getting function GFS2: Fix multi-block allocation GFS2: decouple quota allocations from block allocations GFS2: split function rgblk_search GFS2: Fix up "off by one" in the previous patch GFS2: move toward a generic multi-block allocator GFS2: O_(D)SYNC support for fallocate GFS2: remove vestigial al_alloced GFS2: combine gfs2_alloc_block and gfs2_alloc_di GFS2: Add non-try locks back to get_local_rgrp GFS2: f_ra is always valid in dir readahead function GFS2: Fix very unlikley memory leak in ACL xattr code GFS2: More automated code analysis fixes GFS2: Add readahead to sequential directory traversal GFS2: Fix up REQ flags
2012-01-08Merge branch 'for-linus' of git://oss.sgi.com/xfs/xfsLinus Torvalds
* 'for-linus' of git://oss.sgi.com/xfs/xfs: (22 commits) xfs: mark the xfssyncd workqueue as non-reentrant xfs: simplify xfs_qm_detach_gdquots xfs: fix acl count validation in xfs_acl_from_disk() xfs: remove unused XBT_FORCE_SLEEP bit xfs: remove XFS_QMOPT_DQSUSER xfs: kill xfs_qm_idtodq xfs: merge xfs_qm_dqinit_core into the only caller xfs: add a xfs_dqhold helper xfs: simplify xfs_qm_dqattach_grouphint xfs: nest qm_dqfrlist_lock inside the dquot qlock xfs: flatten the dquot lock ordering xfs: implement lazy removal for the dquot freelist xfs: remove XFS_DQ_INACTIVE xfs: cleanup xfs_qm_dqlookup xfs: cleanup dquot locking helpers xfs: remove the sync_mode argument to xfs_qm_dqflush_all xfs: remove xfs_qm_sync xfs: make sure to really flush all dquots in xfs_qm_quotacheck xfs: untangle SYNC_WAIT and SYNC_TRYLOCK meanings for xfs_qm_dqflush xfs: remove the lid_size field in struct log_item_desc ... Fix up trivial conflict in fs/xfs/xfs_sync.c
2012-01-08Merge branch 'for-linus2' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs * 'for-linus2' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: (165 commits) reiserfs: Properly display mount options in /proc/mounts vfs: prevent remount read-only if pending removes vfs: count unlinked inodes vfs: protect remounting superblock read-only vfs: keep list of mounts for each superblock vfs: switch ->show_options() to struct dentry * vfs: switch ->show_path() to struct dentry * vfs: switch ->show_devname() to struct dentry * vfs: switch ->show_stats to struct dentry * switch security_path_chmod() to struct path * vfs: prefer ->dentry->d_sb to ->mnt->mnt_sb vfs: trim includes a bit switch mnt_namespace ->root to struct mount vfs: take /proc/*/mounts and friends to fs/proc_namespace.c vfs: opencode mntget() mnt_set_mountpoint() vfs: spread struct mount - remaining argument of next_mnt() vfs: move fsnotify junk to struct mount vfs: move mnt_devname vfs: move mnt_list to struct mount vfs: switch pnode.h macros to struct mount * ...
2012-01-08ore: Must support none-PAGE-aligned IOBoaz Harrosh
NFS might send us offsets that are not PAGE aligned. So we must read in the reminder of the first/last pages, in cases we need it for Parity calculations. We only add an sg segments to read the partial page. But we don't mark it as read=true because it is a lock-for-write page. TODO: In some cases (IO spans a single unit) we can just adjust the raid_unit offset/length, but this is left for later Kernels. [Bug in 3.2.0 Kernel] CC: Stable Tree <stable@kernel.org> Signed-off-by: Boaz Harrosh <bharrosh@panasas.com>
2012-01-07Merge branch 'driver-core-next' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core * 'driver-core-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (73 commits) arm: fix up some samsung merge sysdev conversion problems firmware: Fix an oops on reading fw_priv->fw in sysfs loading file Drivers:hv: Fix a bug in vmbus_driver_unregister() driver core: remove __must_check from device_create_file debugfs: add missing #ifdef HAS_IOMEM arm: time.h: remove device.h #include driver-core: remove sysdev.h usage. clockevents: remove sysdev.h arm: convert sysdev_class to a regular subsystem arm: leds: convert sysdev_class to a regular subsystem kobject: remove kset_find_obj_hinted() m86k: gpio - convert sysdev_class to a regular subsystem mips: txx9_sram - convert sysdev_class to a regular subsystem mips: 7segled - convert sysdev_class to a regular subsystem sh: dma - convert sysdev_class to a regular subsystem sh: intc - convert sysdev_class to a regular subsystem power: suspend - convert sysdev_class to a regular subsystem power: qe_ic - convert sysdev_class to a regular subsystem power: cmm - convert sysdev_class to a regular subsystem s390: time - convert sysdev_class to a regular subsystem ... Fix up conflicts with 'struct sysdev' removal from various platform drivers that got changed: - arch/arm/mach-exynos/cpu.c - arch/arm/mach-exynos/irq-eint.c - arch/arm/mach-s3c64xx/common.c - arch/arm/mach-s3c64xx/cpu.c - arch/arm/mach-s5p64x0/cpu.c - arch/arm/mach-s5pv210/common.c - arch/arm/plat-samsung/include/plat/cpu.h - arch/powerpc/kernel/sysfs.c and fix up cpu_is_hotpluggable() as per Greg in include/linux/cpu.h
2012-01-06reiserfs: Properly display mount options in /proc/mountsJan Kara
Make reiserfs properly display mount options in /proc/mounts. CC: reiserfs-devel@vger.kernel.org Signed-off-by: Jan Kara <jack@suse.cz> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-01-06vfs: prevent remount read-only if pending removesMiklos Szeredi
If there are any inodes on the super block that have been unlinked (i_nlink == 0) but have not yet been deleted then prevent the remounting the super block read-only. Reported-by: Toshiyuki Okajima <toshi.okajima@jp.fujitsu.com> Signed-off-by: Miklos Szeredi <mszeredi@suse.cz> Tested-by: Toshiyuki Okajima <toshi.okajima@jp.fujitsu.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-01-06vfs: count unlinked inodesMiklos Szeredi
Add a new counter to the superblock that keeps track of unlinked but not yet deleted inodes. Do not WARN_ON if set_nlink is called with zero count, just do a ratelimited printk. This happens on xfs and probably other filesystems after an unclean shutdown when the filesystem reads inodes which already have zero i_nlink. Reported by Christoph Hellwig. Signed-off-by: Miklos Szeredi <mszeredi@suse.cz> Tested-by: Toshiyuki Okajima <toshi.okajima@jp.fujitsu.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-01-06vfs: protect remounting superblock read-onlyMiklos Szeredi
Currently remouting superblock read-only is racy in a major way. With the per mount read-only infrastructure it is now possible to prevent most races, which this patch attempts. Before starting the remount read-only, iterate through all mounts belonging to the superblock and if none of them have any pending writes, set sb->s_readonly_remount. This indicates that remount is in progress and no further write requests are allowed. If the remount succeeds set MS_RDONLY and reset s_readonly_remount. If the remounting is unsuccessful just reset s_readonly_remount. This can result in transient EROFS errors, despite the fact the remount failed. Unfortunately hodling off writes is difficult as remount itself may touch the filesystem (e.g. through load_nls()) which would deadlock. A later patch deals with delayed writes due to nlink going to zero. Signed-off-by: Miklos Szeredi <mszeredi@suse.cz> Tested-by: Toshiyuki Okajima <toshi.okajima@jp.fujitsu.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-01-06vfs: keep list of mounts for each superblockMiklos Szeredi
Keep track of vfsmounts belonging to a superblock. List is protected by vfsmount_lock. Signed-off-by: Miklos Szeredi <mszeredi@suse.cz> Tested-by: Toshiyuki Okajima <toshi.okajima@jp.fujitsu.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-01-06vfs: switch ->show_options() to struct dentry *Al Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-01-06vfs: switch ->show_path() to struct dentry *Al Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-01-06vfs: switch ->show_devname() to struct dentry *Al Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-01-06vfs: switch ->show_stats to struct dentry *Al Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-01-06switch security_path_chmod() to struct path *Al Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-01-06vfs: prefer ->dentry->d_sb to ->mnt->mnt_sbAl Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-01-06Merge branches 'vfsmount-guts', 'umode_t' and 'partitions' into ZAl Viro
2012-01-06Merge branch 'pstore' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux * 'pstore' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux: pstore: gracefully handle NULL pstore_info functions pstore: pass reason to backend write callback
2012-01-06Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-nextLinus Torvalds
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1958 commits) net: pack skb_shared_info more efficiently net_sched: red: split red_parms into parms and vars net_sched: sfq: extend limits cnic: Improve error recovery on bnx2x devices cnic: Re-init dev->stats_addr after chip reset net_sched: Bug in netem reordering bna: fix sparse warnings/errors bna: make ethtool_ops and strings const xgmac: cleanups net: make ethtool_ops const vmxnet3" make ethtool ops const xen-netback: make ops structs const virtio_net: Pass gfp flags when allocating rx buffers. ixgbe: FCoE: Add support for ndo_get_fcoe_hbainfo() call netdev: FCoE: Add new ndo_get_fcoe_hbainfo() call igb: reset PHY after recovering from PHY power down igb: add basic runtime PM support igb: Add support for byte queue limits. e1000: cleanup CE4100 MDIO registers access e1000: unmap ce4100_gbe_mdio_base_virt in e1000_remove ...
2012-01-06Merge branch 'driver-core-next' into Linux 3.2Greg Kroah-Hartman
This resolves the conflict in the arch/arm/mach-s3c64xx/s3c6400.c file, and it fixes the build error in the arch/x86/kernel/microcode_core.c file, that the merge did not catch. The microcode_core.c patch was provided by Stephen Rothwell <sfr@canb.auug.org.au> who was invaluable in the merge issues involved with the large sysdev removal process in the driver-core tree. Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2012-01-06Merge branch 'sched-core-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip * 'sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (40 commits) sched/tracing: Add a new tracepoint for sleeptime sched: Disable scheduler warnings during oopses sched: Fix cgroup movement of waking process sched: Fix cgroup movement of newly created process sched: Fix cgroup movement of forking process sched: Remove cfs bandwidth period check in tg_set_cfs_period() sched: Fix load-balance lock-breaking sched: Replace all_pinned with a generic flags field sched: Only queue remote wakeups when crossing cache boundaries sched: Add missing rcu_dereference() around ->real_parent usage [S390] fix cputime overflow in uptime_proc_show [S390] cputime: add sparse checking and cleanup sched: Mark parent and real_parent as __rcu sched, nohz: Fix missing RCU read lock sched, nohz: Set the NOHZ_BALANCE_KICK flag for idle load balancer sched, nohz: Fix the idle cpu check in nohz_idle_balance sched: Use jump_labels for sched_feat sched/accounting: Fix parameter passing in task_group_account_field sched/accounting: Fix user/system tick double accounting sched/accounting: Re-use scheduler statistics for the root cgroup ... Fix up conflicts in - arch/ia64/include/asm/cputime.h, include/asm-generic/cputime.h usecs_to_cputime64() vs the sparse cleanups - kernel/sched/fair.c, kernel/time/tick-sched.c scheduler changes in multiple branches
2012-01-06ore: fix BUG_ON, too few sgs when readingBoaz Harrosh
When reading RAID5 files, in rare cases, we calculated too few sg segments. There should be two extra for the beginning and end partial units. Also "too few sg segments" should not be a BUG_ON there is all the mechanics in place to handle it, as a short read. So just return -ENOMEM and the rest of the code will gracefully split the IO. [Bug in 3.2.0 Kernel] CC: Stable Tree <stable@kernel.org> Signed-off-by: Boaz Harrosh <bharrosh@panasas.com>
2012-01-06ore: Fix crash in case of an IO error.Boaz Harrosh
The users of ore_check_io() expect the reported device (In case of error) to be indexed relative to the passed-in ore_components table, and not the logical dev index. This causes a crash inside objlayoutdriver in case of an IO error. [Bug in 3.2.0 Kernel] CC: Stable Tree <stable@kernel.org> Signed-off-by: Boaz Harrosh <bharrosh@panasas.com>
2012-01-06ore: FIX breakage when MISC_FILESYSTEMS is not setBoaz Harrosh
As Reported by Randy Dunlap When MISC_FILESYSTEMS is not enabled and NFS4.1 is: fs/built-in.o: In function `objio_alloc_io_state': objio_osd.c:(.text+0xcb525): undefined reference to `ore_get_rw_state' fs/built-in.o: In function `_write_done': objio_osd.c:(.text+0xcb58d): undefined reference to `ore_check_io' fs/built-in.o: In function `_read_done': ... When MISC_FILESYSTEMS, which is more of a GUI thing then anything else, is not selected. exofs/Kconfig is never examined during Kconfig, and it can not do it's magic stuff to automatically select everything needed. We must split exofs/Kconfig in two. The ore one is always included. And the exofs one is left in it's old place in the menu. [Needed for the 3.2.0 Kernel] CC: Stable Tree <stable@kernel.org> Reported-by: Randy Dunlap <rdunlap@xenotime.net> Signed-off-by: Boaz Harrosh <bharrosh@panasas.com>
2012-01-05vfs: fix up ENOIOCTLCMD error handlingLinus Torvalds
We're doing some odd things there, which already messes up various users (see the net/socket.c code that this removes), and it was going to add yet more crud to the block layer because of the incorrect error code translation. ENOIOCTLCMD is not an error return that should be returned to user mode from the "ioctl()" system call, but it should *not* be translated as EINVAL ("Invalid argument"). It should be translated as ENOTTY ("Inappropriate ioctl for device"). That EINVAL confusion has apparently so permeated some code that the block layer actually checks for it, which is sad. We continue to do so for now, but add a big comment about how wrong that is, and we should remove it entirely eventually. In the meantime, this tries to keep the changes localized to just the EINVAL -> ENOTTY fix, and removing code that makes it harder to do the right thing. Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-01-04Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netDavid S. Miller
2012-01-04minixfs: misplaced checks lead to dentry leakAl Viro
bitmap size sanity checks should be done *before* allocating ->s_root; there their cleanup on failure would be correct. As it is, we do iput() on root inode, but leak the root dentry... Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Acked-by: Josh Boyer <jwboyer@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>