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2017-03-01CIFS: Fix possible use after free in demultiplex threadPavel Shilovsky1-6/+26
The recent changes that added SMB3 encryption support introduced a possible use after free in the demultiplex thread. When we process an encrypted packed we obtain a pointer to SMB session but do not obtain a reference. This can possibly lead to a situation when this session was freed before we copy a decryption key from there. Fix this by obtaining a copy of the key rather than a pointer to the session under a spinlock. Signed-off-by: Pavel Shilovsky <pshilov@microsoft.com> Signed-off-by: Steve French <smfrench@gmail.com>
2017-02-28Merge tag 'nfsd-4.11' of git://linux-nfs.org/~bfields/linuxLinus Torvalds18-145/+241
Pull nfsd updates from Bruce Fields: "The nfsd update this round is mainly a lot of miscellaneous cleanups and bugfixes. A couple changes could theoretically break working setups on upgrade. I don't expect complaints in practice, but they seem worth calling out just in case: - NFS security labels are now off by default; a new security_label export flag reenables it per export. But, having them on by default is a disaster, as it generally only makes sense if all your clients and servers have similar enough selinux policies. Thanks to Jason Tibbitts for pointing this out. - NFSv4/UDP support is off. It was never really supported, and the spec explicitly forbids it. We only ever left it on out of laziness; thanks to Jeff Layton for finally fixing that" * tag 'nfsd-4.11' of git://linux-nfs.org/~bfields/linux: (34 commits) nfsd: Fix display of the version string nfsd: fix configuration of supported minor versions sunrpc: don't register UDP port with rpcbind when version needs congestion control nfs/nfsd/sunrpc: enforce transport requirements for NFSv4 sunrpc: flag transports as having congestion control sunrpc: turn bitfield flags in svc_version into bools nfsd: remove superfluous KERN_INFO nfsd: special case truncates some more nfsd: minor nfsd_setattr cleanup NFSD: Reserve adequate space for LOCKT operation NFSD: Get response size before operation for all RPCs nfsd/callback: Drop a useless data copy when comparing sessionid nfsd/callback: skip the callback tag nfsd/callback: Cleanup callback cred on shutdown nfsd/idmap: return nfserr_inval for 0-length names SUNRPC/Cache: Always treat the invalid cache as unexpired SUNRPC: Drop all entries from cache_detail when cache_purge() svcrdma: Poll CQs in "workqueue" mode svcrdma: Combine list fields in struct svc_rdma_op_ctxt svcrdma: Remove unused sc_dto_q field ...
2017-02-28Merge tag 'ceph-for-4.11-rc1' of git://github.com/ceph/ceph-clientLinus Torvalds13-306/+287
Pull ceph updates from Ilya Dryomov: "This time around we have: - support for rbd data-pool feature, which enables rbd images on erasure-coded pools (myself). CEPH_PG_MAX_SIZE has been bumped to allow erasure-coded profiles with k+m up to 32. - a patch for ceph_d_revalidate() performance regression introduced in 4.9, along with some cleanups in the area (Jeff Layton) - a set of fixes for unsafe ->d_parent accesses in CephFS (Jeff Layton) - buffered reads are now processed in rsize windows instead of rasize windows (Andreas Gerstmayr). The new default for rsize mount option is 64M. - ack vs commit distinction is gone, greatly simplifying ->fsync() and MOSDOpReply handling code (myself) ... also a few filesystem bug fixes from Zheng, a CRUSH sync up (CRUSH computations are still serialized though) and several minor fixes and cleanups all over" * tag 'ceph-for-4.11-rc1' of git://github.com/ceph/ceph-client: (52 commits) libceph, rbd, ceph: WRITE | ONDISK -> WRITE libceph: get rid of ack vs commit ceph: remove special ack vs commit behavior ceph: tidy some white space in get_nonsnap_parent() crush: fix dprintk compilation crush: do is_out test only if we do not collide ceph: remove req from unsafe list when unregistering it rbd: constify device_type structure rbd: kill obj_request->object_name and rbd_segment_name_cache rbd: store and use obj_request->object_no rbd: RBD_V{1,2}_DATA_FORMAT macros rbd: factor out __rbd_osd_req_create() rbd: set offset and length outside of rbd_obj_request_create() rbd: support for data-pool feature rbd: introduce rbd_init_layout() rbd: use rbd_obj_bytes() more rbd: remove now unused rbd_obj_request_wait() and helpers rbd: switch rbd_obj_method_sync() to ceph_osdc_call() libceph: pass reply buffer length through ceph_osdc_call() rbd: do away with obj_request in rbd_obj_read_sync() ...
2017-02-28Merge branch 'for-chris-4.11-part2' of ↵Chris Mason31-626/+673
git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux into for-linus-4.11
2017-02-28f2fs: avoid to flush nat journal entriesJaegeuk Kim1-1/+1
This patch adds a missing condition which flushes nat journal entries unnecessarily introduced by: f2fs: add bitmaps for empty or full NAT blocks Signed-off-by: Chao Yu <yuchao0@huawei.com> Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2017-02-28btrfs: add dummy callback for readpage_io_failed and drop checksDavid Sterba4-3/+10
Make extent_io_ops::readpage_io_failed_hook callback mandatory and define a dummy function for btrfs_extent_io_ops. As the failed IO callback is not performance critical, the branch vs extra trade off does not hurt. Signed-off-by: David Sterba <dsterba@suse.com>
2017-02-28btrfs: drop checks for mandatory extent_io_ops callbacksDavid Sterba1-4/+3
We know that eadpage_end_io_hook, submit_bio_hook and merge_bio_hook are always defined so we can drop the checks before we call them. Signed-off-by: David Sterba <dsterba@suse.com>
2017-02-28btrfs: document existence of extent_io ops callbacksDavid Sterba3-11/+26
Some of the callbacks defined in btree_extent_io_ops and btrfs_extent_io_ops do always exist so we don't need to check the existence before each call. This patch just reorders the definition and documents which are mandatory/optional. Signed-off-by: David Sterba <dsterba@suse.com>
2017-02-28btrfs: let writepage_end_io_hook return voidDavid Sterba3-11/+6
There's no error path in any of the instances, always return 0. Reviewed-by: Liu Bo <bo.li.liu@oracle.com> Signed-off-by: David Sterba <dsterba@suse.com>
2017-02-28btrfs: do proper error handling in btrfs_insert_xattr_itemDavid Sterba1-1/+2
The space check in btrfs_insert_xattr_item is duplicated in it's caller (do_setxattr) so we won't hit the BUG_ON. Continuing without any check could be disasterous so turn it to a proper error handling. Reviewed-by: Liu Bo <bo.li.liu@oracle.com> Signed-off-by: David Sterba <dsterba@suse.com>
2017-02-28btrfs: handle allocation error in update_dev_stat_itemDavid Sterba1-1/+2
Reviewed-by: Liu Bo <bo.li.liu@oracle.com> Signed-off-by: David Sterba <dsterba@suse.com>
2017-02-28btrfs: remove BUG_ON from __tree_mod_log_insertDavid Sterba1-2/+0
All callers dereference the 'tm' parameter before it gets to this function, the NULL check does not make much sense here. Reviewed-by: Liu Bo <bo.li.liu@oracle.com> Signed-off-by: David Sterba <dsterba@suse.com>
2017-02-28btrfs: derive maximum output size in the compression implementationDavid Sterba5-14/+9
The value of max_out can be calculated from the parameters passed to the compressors, which is number of pages and the page size, and we don't have to needlessly pass it around. Signed-off-by: David Sterba <dsterba@suse.com>
2017-02-28btrfs: use predefined limits for calculating maximum number of pages for ↵David Sterba1-5/+6
compression Signed-off-by: David Sterba <dsterba@suse.com>
2017-02-28btrfs: export compression buffer limits in a headerDavid Sterba2-10/+15
Move the buffer limit definitions out of compress_file_range. Reviewed-by: Qu Wenruo <quwenruo@cn.fujitsu.com> Signed-off-by: David Sterba <dsterba@suse.com>
2017-02-28btrfs: merge nr_pages input and output parameter in compress_pagesDavid Sterba5-15/+11
The parameter saying how many pages can be allocated at maximum can be merged with the output page counter, to save some stack space. The compression implementation will sink the parameter to a local variable so everything works as before. The nr_pages variables can also be simply merged in compress_file_range into one. Signed-off-by: David Sterba <dsterba@suse.com>
2017-02-28btrfs: merge length input and output parameter in compress_pagesDavid Sterba5-20/+18
The length parameter is basically duplicated for input and output in the top level caller of the compress_pages chain. We can simply use one variable for that and reduce stack consumption. The compression implementation will sink the parameter to a local variable so everything works as before. Signed-off-by: David Sterba <dsterba@suse.com>
2017-02-28btrfs: constify name of subvolume in creation helpersDavid Sterba1-3/+3
Signed-off-by: David Sterba <dsterba@suse.com>
2017-02-28btrfs: constify buffers used by compression helpersDavid Sterba3-3/+3
Signed-off-by: David Sterba <dsterba@suse.com>
2017-02-28btrfs: constify input buffer of btrfs_csum_dataDavid Sterba2-3/+3
The function does not modify the input buffer, also update a typecast in one caller. Signed-off-by: David Sterba <dsterba@suse.com>
2017-02-28btrfs: constify device path passed to relevant helpersDavid Sterba4-18/+22
Signed-off-by: David Sterba <dsterba@suse.com>
2017-02-28btrfs: make btrfs_inode_resume_unlocked_dio take btrfs_inodeNikolay Borisov2-4/+3
Signed-off-by: Nikolay Borisov <nborisov@suse.com> Signed-off-by: David Sterba <dsterba@suse.com>
2017-02-28btrfs: make btrfs_inode_block_unlocked_dio take btrfs_inodeNikolay Borisov2-3/+3
Signed-off-by: Nikolay Borisov <nborisov@suse.com> Signed-off-by: David Sterba <dsterba@suse.com>
2017-02-28btrfs: Make btrfs_add_nondir take btrfs_inodeNikolay Borisov1-9/+13
Signed-off-by: Nikolay Borisov <nborisov@suse.com> Signed-off-by: David Sterba <dsterba@suse.com>
2017-02-28btrfs: Make btrfs_add_link take btrfs_inodeNikolay Borisov3-23/+26
Signed-off-by: Nikolay Borisov <nborisov@suse.com> Signed-off-by: David Sterba <dsterba@suse.com>
2017-02-28btrfs: Make btrfs_del_delalloc_inode take btrfs_inodeNikolay Borisov1-7/+7
Signed-off-by: Nikolay Borisov <nborisov@suse.com> Signed-off-by: David Sterba <dsterba@suse.com>
2017-02-28btrfs: Make get_extent_t take btrfs_inodeNikolay Borisov8-54/+59
In addition to changing the signature, this patch also switches all the functions which are used as an argument to also take btrfs_inode. Namely those are: btrfs_get_extent and btrfs_get_extent_filemap. Signed-off-by: Nikolay Borisov <nborisov@suse.com> Signed-off-by: David Sterba <dsterba@suse.com>
2017-02-28btrfs: Make check_extent_to_block take btrfs_inodeNikolay Borisov1-5/+6
Signed-off-by: Nikolay Borisov <nborisov@suse.com> Signed-off-by: David Sterba <dsterba@suse.com>
2017-02-28btrfs: Make clone_update_extent_map take btrfs_inodeNikolay Borisov1-14/+13
Signed-off-by: Nikolay Borisov <nborisov@suse.com> Signed-off-by: David Sterba <dsterba@suse.com>
2017-02-28btrfs: Make btrfs_clear_bit_hook take btrfs_inodeNikolay Borisov3-21/+25
Signed-off-by: Nikolay Borisov <nborisov@suse.com> Signed-off-by: David Sterba <dsterba@suse.com>
2017-02-28btrfs: Make btrfs_extent_item_to_extent_map take btrfs_inodeNikolay Borisov4-8/+10
Signed-off-by: Nikolay Borisov <nborisov@suse.com> Signed-off-by: David Sterba <dsterba@suse.com>
2017-02-28btrfs: make btrfs_log_inode_parent take btrfs_inodeNikolay Borisov1-26/+24
Signed-off-by: Nikolay Borisov <nborisov@suse.com> Signed-off-by: David Sterba <dsterba@suse.com>
2017-02-28btrfs: Make check_parent_dirs_for_sync take btrfs_inodeNikolay Borisov1-14/+14
Signed-off-by: Nikolay Borisov <nborisov@suse.com> Signed-off-by: David Sterba <dsterba@suse.com>
2017-02-28btrfs: Make btrfs_orphan_add take btrfs_inodeNikolay Borisov4-22/+24
Signed-off-by: Nikolay Borisov <nborisov@suse.com> Signed-off-by: David Sterba <dsterba@suse.com>
2017-02-28btrfs: make btrfs_orphan_del take btrfs_inodeNikolay Borisov1-20/+20
Signed-off-by: Nikolay Borisov <nborisov@suse.com> Signed-off-by: David Sterba <dsterba@suse.com>
2017-02-28btrfs: make btrfs_free_io_failure_record take btrfs_inodeNikolay Borisov3-7/+9
Signed-off-by: Nikolay Borisov <nborisov@suse.com> Signed-off-by: David Sterba <dsterba@suse.com>
2017-02-28btrfs: make clean_io_failure take btrfs_inodeNikolay Borisov3-14/+15
Signed-off-by: Nikolay Borisov <nborisov@suse.com> Signed-off-by: David Sterba <dsterba@suse.com>
2017-02-28btrfs: make repair_io_failure take btrfs_inodeNikolay Borisov3-11/+12
Signed-off-by: Nikolay Borisov <nborisov@suse.com> Signed-off-by: David Sterba <dsterba@suse.com>
2017-02-28btrfs: make check_compressed_csum take btrfs_inodeNikolay Borisov1-5/+4
Signed-off-by: Nikolay Borisov <nborisov@suse.com> Signed-off-by: David Sterba <dsterba@suse.com>
2017-02-28btrfs: make btrfs_print_data_csum_error take btrfs_inodeNikolay Borisov3-7/+8
Signed-off-by: Nikolay Borisov <nborisov@suse.com> Signed-off-by: David Sterba <dsterba@suse.com>
2017-02-28btrfs: make free_io_failure take btrfs_inodeNikolay Borisov3-11/+13
Signed-off-by: Nikolay Borisov <nborisov@suse.com> Signed-off-by: David Sterba <dsterba@suse.com>
2017-02-28btrfs: Make lock_and_cleanup_extent_if_need take btrfs_inodeNikolay Borisov1-14/+14
Signed-off-by: Nikolay Borisov <nborisov@suse.com> Signed-off-by: David Sterba <dsterba@suse.com>
2017-02-28btrfs: Make check_can_nocow take btrfs_inodeNikolay Borisov1-10/+12
Signed-off-by: Nikolay Borisov <nborisov@suse.com> Signed-off-by: David Sterba <dsterba@suse.com>
2017-02-28btrfs: Make btrfs_lookup_ordered_range take btrfs_inodeNikolay Borisov6-18/+19
Signed-off-by: Nikolay Borisov <nborisov@suse.com> Signed-off-by: David Sterba <dsterba@suse.com>
2017-02-28btrfs: Make btrfs_mark_extent_written take btrfs_inodeNikolay Borisov3-6/+6
Signed-off-by: Nikolay Borisov <nborisov@suse.com> Signed-off-by: David Sterba <dsterba@suse.com>
2017-02-28btrfs: Make fill_holes take btrfs_inodeNikolay Borisov1-19/+18
Signed-off-by: Nikolay Borisov <nborisov@suse.com> Signed-off-by: David Sterba <dsterba@suse.com>
2017-02-28btrfs: Make hole_mergeable take btrfs_inodeNikolay Borisov1-4/+5
Signed-off-by: Nikolay Borisov <nborisov@suse.com> Signed-off-by: David Sterba <dsterba@suse.com>
2017-02-28btrfs: Make btrfs_drop_extent_cache take btrfs_inodeNikolay Borisov6-26/+30
Signed-off-by: Nikolay Borisov <nborisov@suse.com> Signed-off-by: David Sterba <dsterba@suse.com>
2017-02-28btrfs: Make btrfs_requeue_inode_defrag take btrfs_inodeNikolay Borisov1-5/+5
Signed-off-by: Nikolay Borisov <nborisov@suse.com> Signed-off-by: David Sterba <dsterba@suse.com>
2017-02-28btrfs: Make (__)btrfs_add_inode_defrag take btrfs_inodeNikolay Borisov3-16/+17
Signed-off-by: Nikolay Borisov <nborisov@suse.com> Signed-off-by: David Sterba <dsterba@suse.com>
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