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* Merge branch 'for-linus' of git://git.kernel.dk/linux-blockLinus Torvalds2015-05-082-2/+3
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Pull block fixes from Jens Axboe: "A collection of fixes since the merge window; - fix for a double elevator module release, from Chao Yu. Ancient bug. - the splice() MORE flag fix from Christophe Leroy. - a fix for NVMe, fixing a patch that went in in the merge window. From Keith. - two fixes for blk-mq CPU hotplug handling, from Ming Lei. - bdi vs blockdev lifetime fix from Neil Brown, fixing and oops in md. - two blk-mq fixes from Shaohua, fixing a race on queue stop and a bad merge issue with FUA writes. - division-by-zero fix for writeback from Tejun. - a block bounce page accounting fix, making sure we inc/dec after bouncing so that pre/post IO pages match up. From Wang YanQing" * 'for-linus' of git://git.kernel.dk/linux-block: splice: sendfile() at once fails for big files blk-mq: don't lose requests if a stopped queue restarts blk-mq: fix FUA request hang block: destroy bdi before blockdev is unregistered. block:bounce: fix call inc_|dec_zone_page_state on different pages confuse value of NR_BOUNCE elevator: fix double release of elevator module writeback: use |1 instead of +1 to protect against div by zero blk-mq: fix CPU hotplug handling blk-mq: fix race between timeout and CPU hotplug NVMe: Fix VPD B0 max sectors translation
| * block: destroy bdi before blockdev is unregistered.NeilBrown2015-04-271-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Because of the peculiar way that md devices are created (automatically when the device node is opened), a new device can be created and registered immediately after the blk_unregister_region(disk_devt(disk), disk->minors); call in del_gendisk(). Therefore it is important that all visible artifacts of the previous device are removed before this call. In particular, the 'bdi'. Since: commit c4db59d31e39ea067c32163ac961e9c80198fd37 Author: Christoph Hellwig <hch@lst.de> fs: don't reassign dirty inodes to default_backing_dev_info moved the device_unregister(bdi->dev); call from bdi_unregister() to bdi_destroy() it has been quite easy to lose a race and have a new (e.g.) "md127" be created after the blk_unregister_region() call and before bdi_destroy() is ultimately called by the final 'put_disk', which must come after del_gendisk(). The new device finds that the bdi name is already registered in sysfs and complains > [ 9627.630029] WARNING: CPU: 18 PID: 3330 at fs/sysfs/dir.c:31 sysfs_warn_dup+0x5a/0x70() > [ 9627.630032] sysfs: cannot create duplicate filename '/devices/virtual/bdi/9:127' We can fix this by moving the bdi_destroy() call out of blk_release_queue() (which can happen very late when a refcount reaches zero) and into blk_cleanup_queue() - which happens exactly when the md device driver calls it. Then it is only necessary for md to call blk_cleanup_queue() before del_gendisk(). As loop.c devices are also created on demand by opening the device node, we make the same change there. Fixes: c4db59d31e39ea067c32163ac961e9c80198fd37 Reported-by: Azat Khuzhin <a3at.mail@gmail.com> Cc: Christoph Hellwig <hch@lst.de> Cc: stable@vger.kernel.org (v4.0) Signed-off-by: NeilBrown <neilb@suse.de> Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Jens Axboe <axboe@fb.com>
| * NVMe: Fix VPD B0 max sectors translationKeith Busch2015-04-231-1/+2
| | | | | | | | | | | | | | | | | | | | | | Use the namespace's block format for reporting the max transfer length. Max unmap count is left as-is since NVMe doesn't provide a max, so the value the driver provided the block layer is valid for any format. Reported-by: Martin K. Petersen <martin.petersen@oracle.com> Signed-off-by: Keith Busch <keith.busch@intel.com> Signed-off-by: Jens Axboe <axboe@fb.com>
* | Merge tag 'for-linus-4.1b-rc2-tag' of ↵Linus Torvalds2015-05-061-24/+11
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip Pull xen bug fixes from David Vrabel: - fix blkback regression if using persistent grants - fix various event channel related suspend/resume bugs - fix AMD x86 regression with X86_BUG_SYSRET_SS_ATTRS - SWIOTLB on ARM now uses frames <4 GiB (if available) so device only capable of 32-bit DMA work. * tag 'for-linus-4.1b-rc2-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip: xen: Add __GFP_DMA flag when xen_swiotlb_init gets free pages on ARM hypervisor/x86/xen: Unset X86_BUG_SYSRET_SS_ATTRS on Xen PV guests xen/events: Set irq_info->evtchn before binding the channel to CPU in __startup_pirq() xen/console: Update console event channel on resume xen/xenbus: Update xenbus event channel on resume xen/events: Clear cpu_evtchn_mask before resuming xen-pciback: Add name prefix to global 'permissive' variable xen: Suspend ticks on all CPUs during suspend xen/grant: introduce func gnttab_unmap_refs_sync() xen/blkback: safely unmap purge persistent grants
| * | xen/grant: introduce func gnttab_unmap_refs_sync()Bob Liu2015-04-271-28/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | There are several place using gnttab async unmap and wait for completion, so move the common code to a function gnttab_unmap_refs_sync(). Signed-off-by: Bob Liu <bob.liu@oracle.com> Acked-by: Roger Pau Monné <roger.pau@citrix.com> Acked-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> Signed-off-by: David Vrabel <david.vrabel@citrix.com>
| * | xen/blkback: safely unmap purge persistent grantsBob Liu2015-04-271-6/+18
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Commit c43cf3ea8385 ("xen-blkback: safely unmap grants in case they are still in use") use gnttab_unmap_refs_async() to wait until the mapped pages are no longer in use before unmapping them, but that commit missed the persistent case. Purge persistent pages can't be unmapped either unless no longer in use. Signed-off-by: Bob Liu <bob.liu@oracle.com> Acked-by: Roger Pau Monné <roger.pau@citrix.com> Signed-off-by: David Vrabel <david.vrabel@citrix.com>
* | | revert "zram: move compact_store() to sysfs functions area"Andrew Morton2015-05-051-0/+23
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Revert commit c72c6160d967ed26a0b136dbab337f821d233509 It was intended to be a cosmetic change that w/o any functional change and was part of a bigger change: http://lkml.iu.edu/hypermail/linux/kernel/1503.1/01818.html Sergey Senozhatsky <sergey.senozhatsky.work@gmail.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Minchan Kim <minchan@kernel.org> Cc: Nitin Gupta <ngupta@vflare.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | rbd: end I/O the entire obj_request on errorIlya Dryomov2015-05-011-0/+5
|/ / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When we end I/O struct request with error, we need to pass obj_request->length as @nr_bytes so that the entire obj_request worth of bytes is completed. Otherwise block layer ends up confused and we trip on rbd_assert(more ^ (which == img_request->obj_request_count)); in rbd_img_obj_callback() due to more being true no matter what. We already do it in most cases but we are missing some, in particular those where we don't even get a chance to submit any obj_requests, due to an early -ENOMEM for example. A number of obj_request->xferred assignments seem to be redundant but I haven't touched any of obj_request->xferred stuff to keep this small and isolated. Cc: Alex Elder <elder@linaro.org> Cc: stable@vger.kernel.org # 3.10+ Reported-by: Shawn Edwards <lesser.evil@gmail.com> Reviewed-by: Sage Weil <sage@redhat.com> Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
* | Merge branch 'for-linus' of ↵Linus Torvalds2015-04-261-4/+4
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs Pull fourth vfs update from Al Viro: "d_inode() annotations from David Howells (sat in for-next since before the beginning of merge window) + four assorted fixes" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: RCU pathwalk breakage when running into a symlink overmounting something fix I_DIO_WAKEUP definition direct-io: only inc/dec inode->i_dio_count for file systems fs/9p: fix readdir() VFS: assorted d_backing_inode() annotations VFS: fs/inode.c helpers: d_inode() annotations VFS: fs/cachefiles: d_backing_inode() annotations VFS: fs library helpers: d_inode() annotations VFS: assorted weird filesystems: d_inode() annotations VFS: normal filesystems (and lustre): d_inode() annotations VFS: security/: d_inode() annotations VFS: security/: d_backing_inode() annotations VFS: net/: d_inode() annotations VFS: net/unix: d_backing_inode() annotations VFS: kernel/: d_inode() annotations VFS: audit: d_backing_inode() annotations VFS: Fix up some ->d_inode accesses in the chelsio driver VFS: Cachefiles should perform fs modifications on the top layer only VFS: AF_UNIX sockets should call mknod on the top layer only
| * | VFS: assorted weird filesystems: d_inode() annotationsDavid Howells2015-04-151-4/+4
| | | | | | | | | | | | | | | Signed-off-by: David Howells <dhowells@redhat.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* | | Merge branch 'for-linus' of ↵Linus Torvalds2015-04-221-6/+20
|\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client Pull Ceph updates from Sage Weil: "This time around we have a collection of CephFS fixes from Zheng around MDS failure handling and snapshots, support for a new CRUSH straw2 algorithm (to sync up with userspace) and several RBD cleanups and fixes from Ilya, an error path leak fix from Taesoo, and then an assorted collection of cleanups from others" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client: (28 commits) rbd: rbd_wq comment is obsolete libceph: announce support for straw2 buckets crush: straw2 bucket type with an efficient 64-bit crush_ln() crush: ensuring at most num-rep osds are selected crush: drop unnecessary include from mapper.c ceph: fix uninline data function ceph: rename snapshot support ceph: fix null pointer dereference in send_mds_reconnect() ceph: hold on to exclusive caps on complete directories libceph: simplify our debugfs attr macro ceph: show non-default options only libceph: expose client options through debugfs libceph, ceph: split ceph_show_options() rbd: mark block queue as non-rotational libceph: don't overwrite specific con error msgs ceph: cleanup unsafe requests when reconnecting is denied ceph: don't zero i_wrbuffer_ref when reconnecting is denied ceph: don't mark dirty caps when there is no auth cap ceph: keep i_snap_realm while there are writers libceph: osdmap.h: Add missing format newlines ...
| * | | rbd: rbd_wq comment is obsoleteIlya Dryomov2015-04-221-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | After the switch to blk-mq rbd_wq processes requests, not devices. Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
| * | | rbd: mark block queue as non-rotationalIlya Dryomov2015-04-201-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Set QUEUE_FLAG_NONROT. Following commit b277da0a8a59 ("block: disable entropy contributions for nonrot devices") we should also clear QUEUE_FLAG_ADD_RANDOM, but it's off by default for blk-mq drivers, so just note it in the comment. Also remove physical block size assignment - no sense in repeating defaults that are not going to change. Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
| * | | rbd: be more informative on -ENOENT failuresIlya Dryomov2015-04-201-3/+17
| | | | | | | | | | | | | | | | | | | | | | | | pr_info what exactly was the culprit: missing pool, image or snap. Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
* | | | Merge branch 'x86-pmem-for-linus' of ↵Linus Torvalds2015-04-183-0/+274
|\ \ \ \ | |_|_|/ |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull PMEM driver from Ingo Molnar: "This is the initial support for the pmem block device driver: persistent non-volatile memory space mapped into the system's physical memory space as large physical memory regions. The driver is based on Intel code, written by Ross Zwisler, with fixes by Boaz Harrosh, integrated with x86 e820 memory resource management and tidied up by Christoph Hellwig. Note that there were two other separate pmem driver submissions to lkml: but apparently all parties (Ross Zwisler, Boaz Harrosh) are reasonably happy with this initial version. This version enables minimal support that enables persistent memory devices out in the wild to work as block devices, identified through a magic (non-standard) e820 flag and auto-discovered if CONFIG_X86_PMEM_LEGACY=y, or added explicitly through manipulating the memory maps via the "memmap=..." boot option with the new, special '!' modifier character. Limitations: this is a regular block device, and since the pmem areas are not struct page backed, they are invisible to the rest of the system (other than the block IO device), so direct IO to/from pmem areas, direct mmap() or XIP is not possible yet. The page cache will also shadow and double buffer pmem contents, etc. Initial support is for x86" * 'x86-pmem-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: drivers/block/pmem: Fix 32-bit build warning in pmem_alloc() drivers/block/pmem: Add a driver for persistent memory x86/mm: Add support for the non-standard protected e820 type
| * | | drivers/block/pmem: Fix 32-bit build warning in pmem_alloc()Ingo Molnar2015-04-011-2/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Fix: drivers/block/pmem.c: In function ‘pmem_alloc’: drivers/block/pmem.c:138:7: warning: format ‘%llx’ expects argument of type ‘long long unsigned int’, but argument 3 has type ‘phys_addr_t’ [-Wformat=] By using the proper %pa format specifier we use for 'phys_addr_t' arguments. Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Andy Lutomirski <luto@amacapital.net> Cc: Boaz Harrosh <boaz@plexistor.com> Cc: Borislav Petkov <bp@alien8.de> Cc: Christoph Hellwig <hch@lst.de> Cc: Dan Williams <dan.j.williams@intel.com> Cc: H. Peter Anvin <hpa@zytor.com> Cc: Jens Axboe <axboe@fb.com> Cc: Jens Axboe <axboe@kernel.dk> Cc: Keith Busch <keith.busch@intel.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Matthew Wilcox <willy@linux.intel.com> Cc: Ross Zwisler <ross.zwisler@linux.intel.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: linux-nvdimm@ml01.01.org Signed-off-by: Ingo Molnar <mingo@kernel.org>
| * | | drivers/block/pmem: Add a driver for persistent memoryRoss Zwisler2015-04-013-0/+275
| |/ / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | PMEM is a new driver that presents a reserved range of memory as a block device. This is useful for developing with NV-DIMMs, and can be used with volatile memory as a development platform. This patch contains the initial driver from Ross Zwisler, with various changes: converted it to use a platform_device for discovery, fixed partition support and merged various patches from Boaz Harrosh. Tested-by: Ross Zwisler <ross.zwisler@linux.intel.com> Signed-off-by: Ross Zwisler <ross.zwisler@linux.intel.com> Signed-off-by: Christoph Hellwig <hch@lst.de> Acked-by: Dan Williams <dan.j.williams@intel.com> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Andy Lutomirski <luto@amacapital.net> Cc: Boaz Harrosh <boaz@plexistor.com> Cc: Borislav Petkov <bp@alien8.de> Cc: H. Peter Anvin <hpa@zytor.com> Cc: Jens Axboe <axboe@fb.com> Cc: Jens Axboe <axboe@kernel.dk> Cc: Keith Busch <keith.busch@intel.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Matthew Wilcox <willy@linux.intel.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: linux-nvdimm@ml01.01.org Link: http://lkml.kernel.org/r/1427872339-6688-3-git-send-email-hch@lst.de [ Minor cleanups. ] Signed-off-by: Ingo Molnar <mingo@kernel.org>
* | | Merge branch 'for-linus' of ↵Linus Torvalds2015-04-161-174/+120
|\ \ \ | | |/ | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs Pull third hunk of vfs changes from Al Viro: "This contains the ->direct_IO() changes from Omar + saner generic_write_checks() + dealing with fcntl()/{read,write}() races (mirroring O_APPEND/O_DIRECT into iocb->ki_flags and instead of repeatedly looking at ->f_flags, which can be changed by fcntl(2), check ->ki_flags - which cannot) + infrastructure bits for dhowells' d_inode annotations + Christophs switch of /dev/loop to vfs_iter_write()" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: (30 commits) block: loop: switch to VFS ITER_BVEC configfs: Fix inconsistent use of file_inode() vs file->f_path.dentry->d_inode VFS: Make pathwalk use d_is_reg() rather than S_ISREG() VFS: Fix up debugfs to use d_is_dir() in place of S_ISDIR() VFS: Combine inode checks with d_is_negative() and d_is_positive() in pathwalk NFS: Don't use d_inode as a variable name VFS: Impose ordering on accesses of d_inode and d_flags VFS: Add owner-filesystem positive/negative dentry checks nfs: generic_write_checks() shouldn't be done on swapout... ocfs2: use __generic_file_write_iter() mirror O_APPEND and O_DIRECT into iocb->ki_flags switch generic_write_checks() to iocb and iter ocfs2: move generic_write_checks() before the alignment checks ocfs2_file_write_iter: stop messing with ppos udf_file_write_iter: reorder and simplify fuse: ->direct_IO() doesn't need generic_write_checks() ext4_file_write_iter: move generic_write_checks() up xfs_file_aio_write_checks: switch to iocb/iov_iter generic_write_checks(): drop isblk argument blkdev_write_iter: expand generic_file_checks() call in there ...
| * | block: loop: switch to VFS ITER_BVECChristoph Hellwig2015-04-151-174/+120
| | | | | | | | | | | | | | | Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* | | Merge branch 'for-4.1/drivers' of git://git.kernel.dk/linux-blockLinus Torvalds2015-04-168-236/+207
|\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Pull block driver updates from Jens Axboe: "This is the block driver pull request for 4.1. As with the core bits, this is a relatively slow round. This pull request contains: - Various fixes and cleanups for NVMe, from Alexey Khoroshilov, Chong Yuan, myself, Keith Busch, and Murali Iyer. - Documentation and code cleanups for nbd from Markus Pargmann. - Change of brd maintainer to me, from Ross Zwisler. At least the email doesn't bounce anymore then. - Two xen-blkback fixes from Tao Chen" * 'for-4.1/drivers' of git://git.kernel.dk/linux-block: (23 commits) NVMe: Meta data handling through submit io ioctl NVMe: Add translation for block limits NVMe: Remove check for null NVMe: Fix error handling of class_create("nvme") xen-blkback: define pr_fmt macro to avoid the duplication of DRV_PFX xen-blkback: enlarge the array size of blkback name nbd: Return error pointer directly nbd: Return error code directly nbd: Remove fixme that was already fixed nbd: Restructure debugging prints nbd: Fix device bytesize type nbd: Replace kthread_create with kthread_run nbd: Remove kernel internal header Documentation: nbd: Add list of module parameters Documentation: nbd: Reformat to allow more documentation NVMe: increase depth of admin queue nvme: Fix PRP list calculation for non-4k system page size NVMe: Fix blk-mq hot cpu notification NVMe: embedded iod mask cleanup NVMe: Freeze admin queue on device failure ...
| * \ \ Merge branch 'stable/for-jens-4.1' of ↵Jens Axboe2015-04-073-52/+54
| |\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen into for-4.1/drivers Konrad writes: This pull has one fix and an cleanup. Note that David Vrabel in the xen/tip.git tree has other changes for the Xen block drivers that are related to his grant work - and they do not conflict with this git pull.
| | * | | xen-blkback: define pr_fmt macro to avoid the duplication of DRV_PFXTao Chen2015-04-073-50/+49
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Define pr_fmt macro with {xen-blkback: } prefix, then remove all use of DRV_PFX in the pr sentences. Replace all DPRINTK with pr sentences, and get rid of DPRINTK macro. It will simplify the code. And if the pr sentences miss a \n, add it in the end. If the DPRINTK sentences have redundant \n, remove it. It will format the code. These all make the readability of the code become better. Signed-off-by: Tao Chen <boby.chen@huawei.com> Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> Acked-by: Roger Pau Monné <roger.pau@citrix.com>
| | * | | xen-blkback: enlarge the array size of blkback nameTao Chen2015-04-071-2/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The blkback name is like blkback.domid.xvd[a-z], if domid has four digits (means larger than 1000), then the backmost xvd wouldn't be fully shown. Define a BLKBACK_NAME_LEN macro to be 20, enlarge the array size of blkback name, so it will be fully shown in any case. Signed-off-by: Tao Chen <boby.chen@huawei.com> Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> Acked-by: Roger Pau Monné <roger.pau@citrix.com>
| * | | | NVMe: Meta data handling through submit io ioctlKeith Busch2015-04-071-74/+49
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This adds support for the extended metadata formats through the submit IO ioctl, and simplifies the rest when using a separate metadata format. Signed-off-by: Keith Busch <keith.busch@intel.com> Signed-off-by: Jens Axboe <axboe@fb.com>
| * | | | NVMe: Add translation for block limitsKeith Busch2015-04-071-1/+27
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Adds SCSI-to-NVMe translation for VPD B0h, block limits inquiry data. Signed-off-by: Keith Busch <keith.busch@intel.com> Signed-off-by: Jens Axboe <axboe@fb.com>
| * | | | NVMe: Remove check for nullKeith Busch2015-04-071-2/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Checking fails static analysis due to additional arithmetic prior to the NULL check. Mapping doesn't return NULL here anyway, so removing the check. Reported-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Keith Busch <keith.busch@intel.com> Signed-off-by: Jens Axboe <axboe@fb.com>
| * | | | NVMe: Fix error handling of class_create("nvme")Alexey Khoroshilov2015-04-071-1/+3
| |/ / / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | class_create() returns ERR_PTR on failure, so IS_ERR() should be used instead of check for NULL. Found by Linux Driver Verification project (linuxtesting.org). Signed-off-by: Alexey Khoroshilov <khoroshilov@ispras.ru> Acked-by: Keith Busch <keith.busch@intel.com> Signed-off-by: Jens Axboe <axboe@fb.com>
| * | | nbd: Return error pointer directlyMarkus Pargmann2015-04-021-5/+2
| | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Markus Pargmann <mpa@pengutronix.de> Acked-by: Pavel Machek <pavel@ucw.cz> Signed-off-by: Jens Axboe <axboe@fb.com>
| * | | nbd: Return error code directlyMarkus Pargmann2015-04-021-5/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | By returning the error code directly, we can avoid the jump label error_out. Signed-off-by: Markus Pargmann <mpa@pengutronix.de> Acked-by: Pavel Machek <pavel@ucw.cz> Signed-off-by: Jens Axboe <axboe@fb.com>
| * | | nbd: Remove fixme that was already fixedMarkus Pargmann2015-04-021-6/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | The mentioned problem is not present anymore. Signed-off-by: Markus Pargmann <mpa@pengutronix.de> Signed-off-by: Jens Axboe <axboe@fb.com>
| * | | nbd: Restructure debugging printsMarkus Pargmann2015-04-021-66/+22
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | dprintk has some name collisions with other frameworks and drivers. It is also not necessary to have these custom debug print filters. Dynamic debug offers the same amount of filtered debugging. This patch replaces all dprintks with dev_dbg(). It also removes the ioctl dprintk which prints the ingoing ioctls which should be replaceable by strace or similar stuff. Signed-off-by: Markus Pargmann <mpa@pengutronix.de> Acked-by: Pavel Machek <pavel@ucw.cz> Signed-off-by: Jens Axboe <axboe@fb.com>
| * | | nbd: Fix device bytesize typeMarkus Pargmann2015-04-021-1/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The block subsystem uses loff_t to store the device size. Change the type for nbd_device bytesize to loff_t. Signed-off-by: Markus Pargmann <mpa@pengutronix.de> Acked-by: Pavel Machek <pavel@ucw.cz> Signed-off-by: Jens Axboe <axboe@fb.com>
| * | | nbd: Replace kthread_create with kthread_runMarkus Pargmann2015-04-021-3/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | kthread_run includes the wake_up_process() call, so instead of kthread_create() followed by wake_up_process() we can use this macro. Signed-off-by: Markus Pargmann <mpa@pengutronix.de> Acked-by: Pavel Machek <pavel@ucw.cz> Signed-off-by: Jens Axboe <axboe@fb.com>
| * | | nbd: Remove kernel internal headerMarkus Pargmann2015-04-021-0/+22
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The header is not included anywhere. Remove it and include the private nbd_device struct in nbd.c. Signed-off-by: Markus Pargmann <mpa@pengutronix.de> Signed-off-by: Jens Axboe <axboe@fb.com>
| * | | NVMe: increase depth of admin queueJens Axboe2015-03-311-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Usually the admin queue depth of 64 is plenty, but for some use cases we really need it larger. Examples are use cases like MAT, where you have to touch all of NAND for init/format like purposes. In those cases, we see a good 2x increase with an increased queue depth. Signed-off-by: Jens Axboe <axboe@fb.com> Acked-by: Keith Busch <keith.busch@intel.com>
| * | | nvme: Fix PRP list calculation for non-4k system page sizeMurali Iyer2015-03-311-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | PRP list calculation is supposed to be based on device's page size. Systems with page size larger than device's page size cause corruption to the name space as well as system memory with out this fix. Systems like x86 might not experience this issue because it uses PAGE_SIZE of 4K where as powerpc uses PAGE_SIZE of 64k while NVMe device's page size varies depending upon the vendor. Signed-off-by: Murali Iyer <mniyer@us.ibm.com> Signed-off-by: Brian King <brking@linux.vnet.ibm.com> Acked-by: Keith Busch <keith.busch@intel.com> Signed-off-by: Jens Axboe <axboe@fb.com>
| * | | NVMe: Fix blk-mq hot cpu notificationKeith Busch2015-03-311-7/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The driver may issue commands to a device that may never return, so its request_queue could always have active requests while the controller is running. Waiting for the queue to freeze could block forever, which is what blk-mq's hot cpu notification handler was doing when nvme drives were in use. This has the nvme driver make the asynchronous event command's tag reserved and does not keep the request active. We can't have more than one since the request is released back to the request_queue before the command is completed. Having only one avoids potential tag collisions, and reserving the tag for this purpose prevents other admin tasks from reusing the tag. I also couldn't think of a scenario where issuing AEN requests single depth is worse than issuing them in batches, so I don't think we lose anything with this change. As an added bonus, doing it this way removes "Cancelling I/O" warnings observed when unbinding the nvme driver from a device. Reported-by: Yigal Korman <yigal@plexistor.com> Signed-off-by: Keith Busch <keith.busch@intel.com> Signed-off-by: Jens Axboe <axboe@fb.com>
| * | | NVMe: embedded iod mask cleanupChong Yuan2015-03-311-4/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Remove unused mask in nvme_alloc_iod Signed-off-by: Chong Yuan <chong.yuan@memblaze.com> Reviewed-by: Wenbo Wang <wenbo.wang@memblaze.com> Acked-by: Keith Busch <keith.busch@intel.com> Signed-off-by: Jens Axboe <axboe@fb.com>
| * | | NVMe: Freeze admin queue on device failureKeith Busch2015-03-311-2/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This fixes a race accessing an invalid address when a controller's admin queue is in use during a reset for failure or hot removal occurs. The admin queue will be frozen to prevent new users from entering prior to the doorbell queue being unmapped. Signed-off-by: Keith Busch <keith.busch@intel.com> Signed-off-by: Jens Axboe <axboe@fb.com>
| * | | block, drbd: use mempool_create_slab_pool()David Rientjes2015-03-241-4/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Mempools created for slab caches should use mempool_create_slab_pool(). Cc: Lars Ellenberg <drbd-dev@lists.linbit.com> Cc: Jens Axboe <axboe@fb.com> Signed-off-by: David Rientjes <rientjes@google.com> Signed-off-by: Jens Axboe <axboe@fb.com>
| * | | block, drbd: fix drbd_req_new() initializationDavid Rientjes2015-03-241-1/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | mempool_alloc() does not support __GFP_ZERO since elements may come from memory that has already been released by mempool_free(). Remove __GFP_ZERO from mempool_alloc() in drbd_req_new() and properly initialize it to 0. Cc: Lars Ellenberg <drbd-dev@lists.linbit.com> Cc: Jens Axboe <axboe@fb.com> Signed-off-by: David Rientjes <rientjes@google.com> Signed-off-by: Jens Axboe <axboe@fb.com>
* | | | Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsiLinus Torvalds2015-04-161-4/+5
|\ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Pull SCSI updates from James Bottomley: "This is the usual grab bag of driver updates (lpfc, qla2xxx, storvsc, aacraid, ipr) plus an assortment of minor updates. There's also a major update to aic1542 which moves the driver into this millenium" * tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (106 commits) change SCSI Maintainer email sd, mmc, virtio_blk, string_helpers: fix block size units ufs: add support to allow non standard behaviours (quirks) ufs-qcom: save controller revision info in internal structure qla2xxx: Update driver version to 8.07.00.18-k qla2xxx: Restore physical port WWPN only, when port down detected for FA-WWPN port. qla2xxx: Fix virtual port configuration, when switch port is disabled/enabled. qla2xxx: Prevent multiple firmware dump collection for ISP27XX. qla2xxx: Disable Interrupt handshake for ISP27XX. qla2xxx: Add debugging info for MBX timeout. qla2xxx: Add serdes read/write support for ISP27XX qla2xxx: Add udev notification to save fw dump for ISP27XX qla2xxx: Add message for sucessful FW dump collected for ISP27XX. qla2xxx: Add support to load firmware from file for ISP 26XX/27XX. qla2xxx: Fix beacon blink for ISP27XX. qla2xxx: Increase the wait time for firmware to be ready for P3P. qla2xxx: Fix crash due to wrong casting of reg for ISP27XX. qla2xxx: Fix warnings reported by static checker. lpfc: Update version to 10.5.0.0 for upstream patch set lpfc: Update copyright to 2015 ...
| * | | | sd, mmc, virtio_blk, string_helpers: fix block size unitsJames Bottomley2015-04-101-4/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The current string_get_size() overflows when the device size goes over 2^64 bytes because the string helper routine computes the suffix from the size in bytes. However, the entirety of Linux thinks in terms of blocks, not bytes, so this will artificially induce an overflow on very large devices. Fix this by making the function string_get_size() take blocks and the block size instead of bytes. This should allow us to keep working until the current SCSI standard overflows. Also fix virtio_blk and mmc (both of which were also artificially multiplying by the block size to pass a byte side to string_get_size()). The mathematics of this is pretty simple: we're taking a product of size in blocks (S) and block size (B) and trying to re-express this in exponential form: S*B = R*N^E (where N, the exponent is either 1000 or 1024) and R < N. Mathematically, S = RS*N^ES and B=RB*N^EB, so if RS*RB < N it's easy to see that S*B = RS*RB*N^(ES+EB). However, if RS*BS > N, we can see that this can be re-expressed as RS*BS = R*N (where R = RS*BS/N < N) so the whole exponent becomes R*N^(ES+EB+1) [jejb: fix incorrect 32 bit do_div spotted by kbuild test robot <fengguang.wu@intel.com>] Acked-by: Ulf Hansson <ulf.hansson@linaro.org> Reviewed-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: James Bottomley <JBottomley@Odin.com>
* | | | | Merge tag 'stable/for-linus-4.1-rc0-tag' of ↵Linus Torvalds2015-04-162-4/+6
|\ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip Pull xen features and fixes from David Vrabel: - use a single source list of hypercalls, generating other tables etc. at build time. - add a "Xen PV" APIC driver to support >255 VCPUs in PV guests. - significant performance improve to guest save/restore/migration. - scsiback/front save/restore support. - infrastructure for multi-page xenbus rings. - misc fixes. * tag 'stable/for-linus-4.1-rc0-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip: xen/pci: Try harder to get PXM information for Xen xenbus_client: Extend interface to support multi-page ring xen-pciback: also support disabling of bus-mastering and memory-write-invalidate xen: support suspend/resume in pvscsi frontend xen: scsiback: add LUN of restored domain xen-scsiback: define a pr_fmt macro with xen-pvscsi xen/mce: fix up xen_late_init_mcelog() error handling xen/privcmd: improve performance of MMAPBATCH_V2 xen: unify foreign GFN map/unmap for auto-xlated physmap guests x86/xen/apic: WARN with details. x86/xen: Provide a "Xen PV" APIC driver to support >255 VCPUs xen/pciback: Don't print scary messages when unsupported by hypervisor. xen: use generated hypercall symbols in arch/x86/xen/xen-head.S xen: use generated hypervisor symbols in arch/x86/xen/trace.c xen: synchronize include/xen/interface/xen.h with xen xen: build infrastructure for generating hypercall depending symbols xen: balloon: Use static attribute groups for sysfs entries xen: pcpu: Use static attribute groups for sysfs entry
| * | | | | xenbus_client: Extend interface to support multi-page ringWei Liu2015-04-152-4/+6
| |/ / / / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Originally Xen PV drivers only use single-page ring to pass along information. This might limit the throughput between frontend and backend. The patch extends Xenbus driver to support multi-page ring, which in general should improve throughput if ring is the bottleneck. Changes to various frontend / backend to adapt to the new interface are also included. Affected Xen drivers: * blkfront/back * netfront/back * pcifront/back * scsifront/back * vtpmfront The interface is documented, as before, in xenbus_client.c. Signed-off-by: Wei Liu <wei.liu2@citrix.com> Signed-off-by: Paul Durrant <paul.durrant@citrix.com> Signed-off-by: Bob Liu <bob.liu@oracle.com> Cc: Konrad Wilk <konrad.wilk@oracle.com> Cc: Boris Ostrovsky <boris.ostrovsky@oracle.com> Signed-off-by: David Vrabel <david.vrabel@citrix.com>
* | | | | Merge tag 'powerpc-4.1-1' of ↵Linus Torvalds2015-04-161-6/+6
|\ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/mpe/linux Pull powerpc updates from Michael Ellerman: - Numerous minor fixes, cleanups etc. - More EEH work from Gavin to remove its dependency on device_nodes. - Memory hotplug implemented entirely in the kernel from Nathan Fontenot. - Removal of redundant CONFIG_PPC_OF by Kevin Hao. - Rewrite of VPHN parsing logic & tests from Greg Kurz. - A fix from Nish Aravamudan to reduce memory usage by clamping nodes_possible_map. - Support for pstore on powernv from Hari Bathini. - Removal of old powerpc specific byte swap routines by David Gibson. - Fix from Vasant Hegde to prevent the flash driver telling you it was flashing your firmware when it wasn't. - Patch from Ben Herrenschmidt to add an OPAL heartbeat driver. - Fix for an oops causing get/put_cpu_var() imbalance in perf by Jan Stancek. - Some fixes for migration from Tyrel Datwyler. - A new syscall to switch the cpu endian by Michael Ellerman. - Large series from Wei Yang to implement SRIOV, reviewed and acked by Bjorn. - A fix for the OPAL sensor driver from Cédric Le Goater. - Fixes to get STRICT_MM_TYPECHECKS building again by Michael Ellerman. - Large series from Daniel Axtens to make our PCI hooks per PHB rather than per machine. - Small patch from Sam Bobroff to explicitly abort non-suspended transactions on syscalls, plus a test to exercise it. - Numerous reworks and fixes for the 24x7 PMU from Sukadev Bhattiprolu. - Small patch to enable the hard lockup detector from Anton Blanchard. - Fix from Dave Olson for missing L2 cache information on some CPUs. - Some fixes from Michael Ellerman to get Cell machines booting again. - Freescale updates from Scott: Highlights include BMan device tree nodes, an MSI erratum workaround, a couple minor performance improvements, config updates, and misc fixes/cleanup. * tag 'powerpc-4.1-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mpe/linux: (196 commits) powerpc/powermac: Fix build error seen with powermac smp builds powerpc/pseries: Fix compile of memory hotplug without CONFIG_MEMORY_HOTREMOVE powerpc: Remove PPC32 code from pseries specific find_and_init_phbs() powerpc/cell: Fix iommu breakage caused by controller_ops change powerpc/eeh: Fix crash in eeh_add_device_early() on Cell powerpc/perf: Cap 64bit userspace backtraces to PERF_MAX_STACK_DEPTH powerpc/perf/hv-24x7: Fail 24x7 initcall if create_events_from_catalog() fails powerpc/pseries: Correct memory hotplug locking powerpc: Fix missing L2 cache size in /sys/devices/system/cpu powerpc: Add ppc64 hard lockup detector support oprofile: Disable oprofile NMI timer on ppc64 powerpc/perf/hv-24x7: Add missing put_cpu_var() powerpc/perf/hv-24x7: Break up single_24x7_request powerpc/perf/hv-24x7: Define update_event_count() powerpc/perf/hv-24x7: Whitespace cleanup powerpc/perf/hv-24x7: Define add_event_to_24x7_request() powerpc/perf/hv-24x7: Rename hv_24x7_event_update powerpc/perf/hv-24x7: Move debug prints to separate function powerpc/perf/hv-24x7: Drop event_24x7_request() powerpc/perf/hv-24x7: Use pr_devel() to log message ... Conflicts: tools/testing/selftests/powerpc/Makefile tools/testing/selftests/powerpc/tm/Makefile
| * | | | | powerpc: Move Power Macintosh drivers to generic byteswappersDavid Gibson2015-03-231-6/+6
| |/ / / / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | ppc has special instruction forms to efficiently load and store values in non-native endianness. These can be accessed via the arch-specific {ld,st}_le{16,32}() inlines in arch/powerpc/include/asm/swab.h. However, gcc is perfectly capable of generating the byte-reversing load/store instructions when using the normal, generic cpu_to_le*() and le*_to_cpu() functions eaning the arch-specific functions don't have much point. Worse the "le" in the names of the arch specific functions is now misleading, because they always generate byte-reversing forms, but some ppc machines can now run a little-endian kernel. To start getting rid of the arch-specific forms, this patch removes them from all the old Power Macintosh drivers, replacing them with the generic byteswappers. Signed-off-by: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
* | | | | Merge branch 'akpm' (patches from Andrew)Linus Torvalds2015-04-153-2/+76
|\ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Merge second patchbomb from Andrew Morton: - the rest of MM - various misc bits - add ability to run /sbin/reboot at reboot time - printk/vsprintf changes - fiddle with seq_printf() return value * akpm: (114 commits) parisc: remove use of seq_printf return value lru_cache: remove use of seq_printf return value tracing: remove use of seq_printf return value cgroup: remove use of seq_printf return value proc: remove use of seq_printf return value s390: remove use of seq_printf return value cris fasttimer: remove use of seq_printf return value cris: remove use of seq_printf return value openrisc: remove use of seq_printf return value ARM: plat-pxa: remove use of seq_printf return value nios2: cpuinfo: remove use of seq_printf return value microblaze: mb: remove use of seq_printf return value ipc: remove use of seq_printf return value rtc: remove use of seq_printf return value power: wakeup: remove use of seq_printf return value x86: mtrr: if: remove use of seq_printf return value linux/bitmap.h: improve BITMAP_{LAST,FIRST}_WORD_MASK MAINTAINERS: CREDITS: remove Stefano Brivio from B43 .mailmap: add Ricardo Ribalda CREDITS: add Ricardo Ribalda Delgado ...
| * | | | | paride: fix the "verbose" module paramDan Carpenter2015-04-151-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The verbose module parameter can be set to 2 for extremely verbose messages so the type should be int instead of bool. Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Cc: Tim Waugh <tim@cyberelk.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| * | | | | zram: fix error return codeJulia Lawall2015-04-151-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Return a negative error code on failure. A simplified version of the semantic match that finds this problem is as follows: (http://coccinelle.lip6.fr/) // <smpl> @@ identifier ret; expression e1,e2; @@ ( if (\(ret < 0\|ret != 0\)) { ... return ret; } | ret = 0 ) ... when != ret = e1 when != &ret *if(...) { ... when != ret = e2 when forall return ret; } // </smpl> Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr> Cc: Minchan Kim <minchan@kernel.org> Cc: Nitin Gupta <ngupta@vflare.org> Acked-by: Sergey Senozhatsky <sergey.senozhatsky.work@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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