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2013-07-17NFSv4: Fix a regression against the FreeBSD serverTrond Myklebust
Technically, the Linux client is allowed by the NFSv4 spec to send 3 word bitmaps as part of an OPEN request. However, this causes the current FreeBSD server to return NFS4ERR_ATTRNOTSUPP errors. Fix the regression by making the Linux client use a 2 word bitmap unless doing NFSv4.2 with labeled NFS. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2013-07-17Merge branch 'for-3.11' of git://linux-nfs.org/~bfields/linuxLinus Torvalds
Pull nfsd bugfixes from Bruce Fields: "Just three minor bugfixes" * 'for-3.11' of git://linux-nfs.org/~bfields/linux: svcrdma: underflow issue in decode_write_list() nfsd4: fix minorversion support interface lockd: protect nlm_blocked access in nlmsvc_retry_blocked
2013-07-17fuse: readdirplus: cleanupMiklos Szeredi
Niels noted that we don't need the 'dentry = NULL' line. Signed-off-by: Miklos Szeredi <mszeredi@suse.cz> CC: Niels de Vos <ndevos@redhat.com>
2013-07-17fuse: readdirplus: change attributes onceMiklos Szeredi
If we got the inode through fuse_iget() then the attributes are already up-to-date. Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
2013-07-17fuse: readdirplus: fix instantiateMiklos Szeredi
Fuse does instantiation slightly differently from NFS/CIFS which use d_materialise_unique(). Signed-off-by: Miklos Szeredi <mszeredi@suse.cz> CC: stable@vger.kernel.org
2013-07-17fuse: readdirplus: sanity checksMiklos Szeredi
Add sanity checks before adding or updating an entry with data received from readdirplus. Signed-off-by: Miklos Szeredi <mszeredi@suse.cz> CC: stable@vger.kernel.org
2013-07-17fuse: readdirplus: fix dentry leakNiels de Vos
In case d_lookup() returns a dentry with d_inode == NULL, the dentry is not returned with dput(). This results in triggering a BUG() in shrink_dcache_for_umount_subtree(): BUG: Dentry ...{i=0,n=...} still in use (1) [unmount of fuse fuse] [SzM: need to d_drop() as well] Reported-by: Justin Clift <jclift@redhat.com> Signed-off-by: Niels de Vos <ndevos@redhat.com> Signed-off-by: Miklos Szeredi <mszeredi@suse.cz> Tested-by: Brian Foster <bfoster@redhat.com> Tested-by: Niels de Vos <ndevos@redhat.com> CC: stable@vger.kernel.org
2013-07-16sysfs: prevent warning when only using binary attributesOliver Schinagl
When only using bin_attrs instead of attrs the kernel prints a warning and refuses to create the sysfs entry. This fixes that. Signed-off-by: Oliver Schinagl <oliver@schinagl.nl> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-07-16sysfs: add support for binary attributes in groupsGreg Kroah-Hartman
groups should be able to support binary attributes, just like it supports "normal" attributes. This lets us only handle one type of structure, groups, throughout the driver core and subsystems, making binary attributes a "full fledged" part of the driver model, and not something just "tacked on". Reported-by: Oliver Schinagl <oliver@schinagl.nl> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Tested-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-07-16ext4: call ext4_es_lru_add() after handling cache missTheodore Ts'o
If there are no items in the extent status tree, ext4_es_lru_add() is a no-op. So it is not sufficient to call ext4_es_lru_add() before we try to lookup an entry in the extent status tree. We also need to call it at the end of ext4_ext_map_blocks(), after items have been added to the extent status tree. This could lead to inodes with that have extent status trees but which are not in the LRU list, which means they won't get considered for eviction by the es_shrinker. Signed-off-by: "Theodore Ts'o" <tytso@mit.edu> Cc: Zheng Liu <wenqing.lz@taobao.com> Cc: stable@vger.kernel.org
2013-07-15ext4: yield during large unlinksTheodore Ts'o
During large unlink operations on files with extents, we can use a lot of CPU time. This adds a cond_resched() call when starting to examine the next level of a multi-level extent tree. Multi-level extent trees are rare in the first place, and this should rarely be executed. Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
2013-07-14Merge tag 'ext4_for_linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4 Pull ext4 bugfixes from Ted Ts'o: "Various regression and bug fixes for ext4" * tag 'ext4_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4: ext4: don't allow ext4_free_blocks() to fail due to ENOMEM ext4: fix spelling errors and a comment in extent_status tree ext4: rate limit printk in buffer_io_error() ext4: don't show usrquota/grpquota twice in /proc/mounts ext4: fix warning in ext4_evict_inode() ext4: fix ext4_get_group_number() ext4: silence warning in ext4_writepages()
2013-07-15ext4: make the extent_status code more robust against ENOMEM failuresTheodore Ts'o
Some callers of ext4_es_remove_extent() and ext4_es_insert_extent() may not be completely robust against ENOMEM failures (or the consequences of reflecting ENOMEM back up to userspace may lead to xfstest or user application failure). To mitigate against this, when trying to insert an entry in the extent status tree, try to shrink the inode's extent status tree before returning ENOMEM. If there are entries which don't record information about extents under delayed allocations, freeing one of them is preferable to returning ENOMEM. Signed-off-by: "Theodore Ts'o" <tytso@mit.edu> Reviewed-by: Zheng Liu <wenqing.lz@taobao.com>
2013-07-15ext4: simplify calculation of blocks to free on errorTheodore Ts'o
In ext4_ext_map_blocks(), if we have successfully allocated the data blocks, but then run into trouble inserting the extent into the extent tree, most likely due to an ENOSPC condition, determine the arguments to ext4_free_blocks() in a simpler way which is easier to prove to be correct. Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
2013-07-15ext4: fix error handling in ext4_ext_truncate()Theodore Ts'o
Previously ext4_ext_truncate() was ignoring potential error returns from ext4_es_remove_extent() and ext4_ext_remove_space(). This can lead to the on-diks extent tree and the extent status tree cache getting out of sync, which is particuarlly bad, and can lead to file system corruption and potential data loss. Signed-off-by: "Theodore Ts'o" <tytso@mit.edu> Cc: stable@vger.kernel.org
2013-07-14Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs Pull more vfs stuff from Al Viro: "O_TMPFILE ABI changes, Oleg's fput() series, misc cleanups, including making simple_lookup() usable for filesystems with non-NULL s_d_op, which allows us to get rid of quite a bit of ugliness" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: sunrpc: now we can just set ->s_d_op cgroup: we can use simple_lookup() now efivarfs: we can use simple_lookup() now make simple_lookup() usable for filesystems that set ->s_d_op configfs: don't open-code d_alloc_name() __rpc_lookup_create_exclusive: pass string instead of qstr rpc_create_*_dir: don't bother with qstr llist: llist_add() can use llist_add_batch() llist: fix/simplify llist_add() and llist_add_batch() fput: turn "list_head delayed_fput_list" into llist_head fs/file_table.c:fput(): add comment Safer ABI for O_TMPFILE
2013-07-14efivarfs: we can use simple_lookup() nowAl Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2013-07-14make simple_lookup() usable for filesystems that set ->s_d_opAl Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2013-07-14configfs: don't open-code d_alloc_name()Al Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2013-07-13Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netLinus Torvalds
Pull networking fixes from David Miller: "Just a bunch of small fixes and tidy ups: 1) Finish the "busy_poll" renames, from Eliezer Tamir. 2) Fix RCU stalls in IFB driver, from Ding Tianhong. 3) Linearize buffers properly in tun/macvtap zerocopy code. 4) Don't crash on rmmod in vxlan, from Pravin B Shelar. 5) Spinlock used before init in alx driver, from Maarten Lankhorst. 6) A sparse warning fix in bnx2x broke TSO checksums, fix from Dmitry Kravkov. 7) Dummy and ifb driver load failure paths can oops, fixes from Tan Xiaojun and Ding Tianhong. 8) Correct MTU calculations in IP tunnels, from Alexander Duyck. 9) Account all TCP retransmits in SNMP stats properly, from Yuchung Cheng. 10) atl1e and via-rhine do not handle DMA mapping failures properly, from Neil Horman. 11) Various equal-cost multipath route fixes in ipv6 from Hannes Frederic Sowa" * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (36 commits) ipv6: only static routes qualify for equal cost multipathing via-rhine: fix dma mapping errors atl1e: fix dma mapping warnings tcp: account all retransmit failures usb/net/r815x: fix cast to restricted __le32 usb/net/r8152: fix integer overflow in expression net: access page->private by using page_private net: strict_strtoul is obsolete, use kstrtoul instead drivers/net/ieee802154: don't use devm_pinctrl_get_select_default() in probe drivers/net/ethernet/cadence: don't use devm_pinctrl_get_select_default() in probe drivers/net/can/c_can: don't use devm_pinctrl_get_select_default() in probe net/usb: add relative mii functions for r815x net/tipc: use %*phC to dump small buffers in hex form qlcnic: Adding Maintainers. gre: Fix MTU sizing check for gretap tunnels pkt_sched: sch_qfq: remove forward declaration of qfq_update_agg_ts pkt_sched: sch_qfq: improve efficiency of make_eligible gso: Update tunnel segmentation to support Tx checksum offload inet: fix spacing in assignment ifb: fix oops when loading the ifb failed ...
2013-07-13Merge tag 'for-linus-v3.11-rc1-2' of git://oss.sgi.com/xfs/xfsLinus Torvalds
Pull more xfs updates from Ben Myers: "Here are a fix for xfs_fsr, a cleanup in bulkstat, a cleanup in xfs_open_by_handle, updated mount options documentation, a cleanup in xfs_bmapi_write, a fix for the size of dquot log reservations, a fix for sgid inheritance when acls are in use, a fix for cleaning up quotainfo structures, and some more of the work which allows group and project quotas to be used together. We had a few more in this last quota category that we might have liked to get in, but it looks there are still a few items that need to be addressed. - fix for xfs_fsr returning -EINVAL - cleanup in xfs_bulkstat - cleanup in xfs_open_by_handle - update mount options documentation - clean up local format handling in xfs_bmapi_write - fix dquot log reservations which were too small - fix sgid inheritance for subdirectories when default acls are in use - add project quota fields to various structures - fix teardown of quotainfo structures when quotas are turned off" * tag 'for-linus-v3.11-rc1-2' of git://oss.sgi.com/xfs/xfs: xfs: Fix the logic check for all quotas being turned off xfs: Add pquota fields where gquota is used. xfs: fix sgid inheritance for subdirectories inheriting default acls [V3] xfs: dquot log reservations are too small xfs: remove local fork format handling from xfs_bmapi_write() xfs: update mount options documentation xfs: use get_unused_fd_flags(0) instead of get_unused_fd() xfs: clean up unused codes at xfs_bulkstat() xfs: use XFS_BMAP_BMDR_SPACE vs. XFS_BROOT_SIZE_ADJ
2013-07-13Merge branch 'for-linus' of git://git.samba.org/sfrench/cifs-2.6Linus Torvalds
Pull cifs fixes from Steve French: "Fixes for 4 cifs bugs, including a reconnect problem, a problem parsing responses to SMB2 open request, and setting nlink incorrectly to some servers which don't report it properly on the wire. Also improves data integrity on reconnect with series from Pavel which adds durable handle support for SMB2." * 'for-linus' of git://git.samba.org/sfrench/cifs-2.6: CIFS: Fix a deadlock when a file is reopened CIFS: Reopen the file if reconnect durable handle failed [CIFS] Fix minor endian error in durable handle patch series CIFS: Reconnect durable handles for SMB2 CIFS: Make SMB2_open use cifs_open_parms struct CIFS: Introduce cifs_open_parms struct CIFS: Request durable open for SMB2 opens CIFS: Simplify SMB2 create context handling CIFS: Simplify SMB2_open code path CIFS: Respect create_options in smb2_open_file CIFS: Fix lease context buffer parsing [CIFS] use sensible file nlink values if unprovided Limit allocation of crypto mechanisms to dialect which requires
2013-07-13fput: turn "list_head delayed_fput_list" into llist_headOleg Nesterov
fput() and delayed_fput() can use llist and avoid the locking. This is unlikely path, it is not that this change can improve the performance, but this way the code looks simpler. Signed-off-by: Oleg Nesterov <oleg@redhat.com> Suggested-by: Andrew Morton <akpm@linux-foundation.org> Cc: Al Viro <viro@zeniv.linux.org.uk> Cc: Andrey Vagin <avagin@openvz.org> Cc: "Eric W. Biederman" <ebiederm@xmission.com> Cc: David Howells <dhowells@redhat.com> Cc: Huang Ying <ying.huang@intel.com> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2013-07-13fs/file_table.c:fput(): add commentAndrew Morton
A missed update to "fput: task_work_add() can fail if the caller has passed exit_task_work()". Cc: "Eric W. Biederman" <ebiederm@xmission.com> Cc: Al Viro <viro@zeniv.linux.org.uk> Cc: Andrey Vagin <avagin@openvz.org> Cc: David Howells <dhowells@redhat.com> Cc: Oleg Nesterov <oleg@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2013-07-13Safer ABI for O_TMPFILEAl Viro
[suggested by Rasmus Villemoes] make O_DIRECTORY | O_RDWR part of O_TMPFILE; that will fail on old kernels in a lot more cases than what I came up with. And make sure O_CREAT doesn't get there... Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2013-07-13ext4: don't allow ext4_free_blocks() to fail due to ENOMEMTheodore Ts'o
The filesystem should not be marked inconsistent if ext4_free_blocks() is not able to allocate memory. Unfortunately some callers (most notably ext4_truncate) don't have a way to reflect an error back up to the VFS. And even if we did, most userspace applications won't deal with most system calls returning ENOMEM anyway. Reported-by: Nagachandra P <nagachandra@gmail.com> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu> Cc: stable@vger.kernel.org
2013-07-13ext4: fix spelling errors and a comment in extent_status treeTheodore Ts'o
Replace "assertation" with "assertion" in lots and lots of debugging messages. Correct the comment stating when ext4_es_insert_extent() is used. It was no doubt tree at one point, but it is no longer true... Signed-off-by: "Theodore Ts'o" <tytso@mit.edu> Cc: Zheng Liu <gnehzuil.liu@gmail.com>
2013-07-12nfsd4: fix minorversion support interfaceJ. Bruce Fields
You can turn on or off support for minorversions using e.g. echo "-4.2" >/proc/fs/nfsd/versions However, the current implementation is a little wonky. For example, the above will turn off 4.2 support, but it will also turn *on* 4.1 support. This didn't matter as long as we only had 2 minorversions, which was true till very recently. And do a little cleanup here. Signed-off-by: J. Bruce Fields <bfields@redhat.com>
2013-07-11ext4: rate limit printk in buffer_io_error()Anatol Pomozov
If there are a lot of outstanding buffered IOs when a device is taken offline (due to hardware errors etc), ext4_end_bio prints out a message for each failed logical block. While this is desirable, we see thousands of such lines being printed out before the serial console gets overwhelmed, causing ext4_end_bio() wait for the printk to complete. This in itself isn't a disaster, except for the detail that this function is being called with the queue lock held. This causes any other function in the block layer to spin on its spin_lock_irqsave while the serial console is draining. If NMI watchdog is enabled on this machine then it eventually comes along and shoots the machine in the head. The end result is that losing any one disk causes the machine to go down. This patch rate limits the printk to bandaid around the problem. Tested: xfstests Change-Id: I8ab5690dcf4f3a67e78be147d45e489fdf4a88d8 Signed-off-by: Anatol Pomozov <anatol.pomozov@gmail.com> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
2013-07-11CIFS: Fix a deadlock when a file is reopenedPavel Shilovsky
If we request reading or writing on a file that needs to be reopened, it causes the deadlock: we are already holding rw semaphore for reading and then we try to acquire it for writing in cifs_relock_file. Fix this by acquiring the semaphore for reading in cifs_relock_file due to we don't make any changes in locks and don't need a write access. CC: <stable@vger.kernel.org> Signed-off-by: Pavel Shilovsky <pshilovsky@samba.org> Acked-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: Steve French <smfrench@gmail.com>
2013-07-11CIFS: Reopen the file if reconnect durable handle failedPavel Shilovsky
This is a follow-on patch for 8/8 patch from the durable handles series. It fixes the problem when durable file handle timeout expired on the server and reopen returns -ENOENT for such files. Signed-off-by: Pavel Shilovsky <pshilovsky@samba.org> Signed-off-by: Steve French <smfrench@gmail.com>
2013-07-11ext4: don't show usrquota/grpquota twice in /proc/mountsTheodore Ts'o
We now print mount options in a generic fashion in ext4_show_options(), so we shouldn't be explicitly printing the {usr,grp}quota options in ext4_show_quota_options(). Without this patch, /proc/mounts can look like this: /dev/vdb /vdb ext4 rw,relatime,quota,usrquota,data=ordered,usrquota 0 0 ^^^^^^^^ ^^^^^^^^ Signed-off-by: "Theodore Ts'o" <tytso@mit.edu> Cc: stable@vger.kernel.org
2013-07-11xfs: Fix the logic check for all quotas being turned offChandra Seetharaman
During the review of seperate pquota inode patches, David noticed that the test to detect all quotas being turned off was incorrect, and hence the block was not freeing all the quota information. The check made sense in Irix, but in Linux, quota is turned off one at a time, which makes the test invalid for Linux. This problem existed since XFS was ported to Linux. David suggested to fix the problem by detecting when all quotas are turned off by checking m_qflags. Signed-off-by: Chandra Seetharaman <sekharan@us.ibm.com> Reviewed-by: Ben Myers <bpm@sgi.com> Signed-off-by: Ben Myers <bpm@sgi.com>
2013-07-11lockd: protect nlm_blocked access in nlmsvc_retry_blockedDavid Jeffery
In nlmsvc_retry_blocked, the check that the list is non-empty and acquiring the pointer of the first entry is unprotected by any lock. This allows a rare race condition when there is only one entry on the list. A function such as nlmsvc_grant_callback() can be called, which will temporarily remove the entry from the list. Between the list_empty() and list_entry(),the list may become empty, causing an invalid pointer to be used as an nlm_block, leading to a possible crash. This patch adds the nlm_block_lock around these calls to prevent concurrent use of the nlm_blocked list. This was a regression introduced by f904be9cc77f361d37d71468b13ff3d1a1823dea "lockd: Mostly remove BKL from the server". Cc: Bryan Schumaker <bjschuma@netapp.com> Cc: stable@vger.kernel.org Signed-off-by: David Jeffery <djeffery@redhat.com> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
2013-07-11Merge branch 'for-3.11/core' of git://git.kernel.dk/linux-blockLinus Torvalds
Pull core block IO updates from Jens Axboe: "Here are the core IO block bits for 3.11. It contains: - A tweak to the reserved tag logic from Jan, for weirdo devices with just 3 free tags. But for those it improves things substantially for random writes. - Periodic writeback fix from Jan. Marked for stable as well. - Fix for a race condition in IO scheduler switching from Jianpeng. - The hierarchical blk-cgroup support from Tejun. This is the grunt of the series. - blk-throttle fix from Vivek. Just a note that I'm in the middle of a relocation, whole family is flying out tomorrow. Hence I will be awal the remainder of this week, but back at work again on Monday the 15th. CC'ing Tejun, since any potential "surprises" will most likely be from the blk-cgroup work. But it's been brewing for a while and sitting in my tree and linux-next for a long time, so should be solid." * 'for-3.11/core' of git://git.kernel.dk/linux-block: (36 commits) elevator: Fix a race in elevator switching block: Reserve only one queue tag for sync IO if only 3 tags are available writeback: Fix periodic writeback after fs mount blk-throttle: implement proper hierarchy support blk-throttle: implement throtl_grp->has_rules[] blk-throttle: Account for child group's start time in parent while bio climbs up blk-throttle: add throtl_qnode for dispatch fairness blk-throttle: make throtl_pending_timer_fn() ready for hierarchy blk-throttle: make tg_dispatch_one_bio() ready for hierarchy blk-throttle: make blk_throtl_bio() ready for hierarchy blk-throttle: make blk_throtl_drain() ready for hierarchy blk-throttle: dispatch from throtl_pending_timer_fn() blk-throttle: implement dispatch looping blk-throttle: separate out throtl_service_queue->pending_timer from throtl_data->dispatch_work blk-throttle: set REQ_THROTTLED from throtl_charge_bio() and gate stats update with it blk-throttle: implement sq_to_tg(), sq_to_td() and throtl_log() blk-throttle: add throtl_service_queue->parent_sq blk-throttle: generalize update_disptime optimization in blk_throtl_bio() blk-throttle: dispatch to throtl_data->service_queue.bio_lists[] blk-throttle: move bio_lists[] and friends to throtl_service_queue ...
2013-07-11Merge tag 'nfs-for-3.11-2' of git://git.linux-nfs.org/projects/trondmy/linux-nfsLinus Torvalds
Pull second set of NFS client updates from Trond Myklebust: "This mainly contains some small readdir optimisations that had dependencies on Al Viro's readdir rewrite. There is also a fix for a nasty deadlock which surfaced earlier in this merge window. Highlights include: - Fix an_rpc pipefs regression that causes a deadlock on mount - Readdir optimisations by Scott Mayhew and Jeff Layton - clean up the rpc_pipefs dentry operation setup" * tag 'nfs-for-3.11-2' of git://git.linux-nfs.org/projects/trondmy/linux-nfs: SUNRPC: Fix a deadlock in rpc_client_register() rpc_pipe: rpc_dir_inode_operations can be static NFS: Allow nfs_updatepage to extend a write under additional circumstances NFS: Make nfs_readdir revalidate less often NFS: Make nfs_attribute_cache_expired() non-static rpc_pipe: set dentry operations at d_alloc time nfs: set verifier on existing dentries in nfs_prime_dcache
2013-07-11Merge tag 'for-linus-3.11-merge-window-part-2' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/ericvh/v9fs Pull second round of 9p patches from Eric Van Hensbergen: "Several of these patches were rebased in order to correct style issues. Only stylistic changes were made versus the patches which were in linux-next for two weeks. The rebases have been in linux-next for 3 days and have passed my regressions. The bulk of these are RDMA fixes and improvements. There's also some additions on the extended attributes front to support some additional namespaces and a new option for TCP to force allocation of mount requests from a priviledged port" * tag 'for-linus-3.11-merge-window-part-2' of git://git.kernel.org/pub/scm/linux/kernel/git/ericvh/v9fs: fs/9p: Remove the unused variable "err" in v9fs_vfs_getattr() 9P: Add cancelled() to the transport functions. 9P/RDMA: count posted buffers without a pending request 9P/RDMA: Improve error handling in rdma_request 9P/RDMA: Do not free req->rc in error handling in rdma_request() 9P/RDMA: Use a semaphore to protect the RQ 9P/RDMA: Protect against duplicate replies 9P/RDMA: increase P9_RDMA_MAXSIZE to 1MB 9pnet: refactor struct p9_fcall alloc code 9P/RDMA: rdma_request() needs not allocate req->rc 9P: Fix fcall allocation for rdma fs/9p: xattr: add trusted and security namespaces net/9p: add privport option to 9p tcp transport
2013-07-11Merge tag 'ecryptfs-3.11-rc1-cleanup' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tyhicks/ecryptfs Pull eCryptfs updates from Tyler Hicks: "Code cleanups and improved buffer handling during page crypto operations: - Remove redundant code by merging some encrypt and decrypt functions - Get rid of a helper page allocation during page decryption by using in-place decryption - Better use of entire pages during page crypto operations - Several code cleanups" * tag 'ecryptfs-3.11-rc1-cleanup' of git://git.kernel.org/pub/scm/linux/kernel/git/tyhicks/ecryptfs: Use ecryptfs_dentry_to_lower_path in a couple of places eCryptfs: Make extent and scatterlist crypt function parameters similar eCryptfs: Collapse crypt_page_offset() into crypt_extent() eCryptfs: Merge ecryptfs_encrypt_extent() and ecryptfs_decrypt_extent() eCryptfs: Combine page_offset crypto functions eCryptfs: Combine encrypt_scatterlist() and decrypt_scatterlist() eCryptfs: Decrypt pages in-place eCryptfs: Accept one offset parameter in page offset crypto functions eCryptfs: Simplify lower file offset calculation eCryptfs: Read/write entire page during page IO eCryptfs: Use entire helper page during page crypto operations eCryptfs: Cocci spatch "memdup.spatch"
2013-07-11Merge tag 'jfs-3.11' of git://github.com/kleikamp/linux-shaggyLinus Torvalds
Pull jfs update from Dave Kleikamp: "A couple cleanups to JFS for 3.11" * tag 'jfs-3.11' of git://github.com/kleikamp/linux-shaggy: jfs: Update jfs_error jfs: fix sparse warning in fs/jfs/xattr.c
2013-07-11Merge branch 'for-3.11' of git://linux-nfs.org/~bfields/linuxLinus Torvalds
Pull nfsd changes from Bruce Fields: "Changes this time include: - 4.1 enabled on the server by default: the last 4.1-specific issues I know of are fixed, so we're not going to find the rest of the bugs without more exposure. - Experimental support for NFSv4.2 MAC Labeling (to allow running selinux over NFS), from Dave Quigley. - Fixes for some delicate cache/upcall races that could cause rare server hangs; thanks to Neil Brown and Bodo Stroesser for extreme debugging persistence. - Fixes for some bugs found at the recent NFS bakeathon, mostly v4 and v4.1-specific, but also a generic bug handling fragmented rpc calls" * 'for-3.11' of git://linux-nfs.org/~bfields/linux: (31 commits) nfsd4: support minorversion 1 by default nfsd4: allow destroy_session over destroyed session svcrpc: fix failures to handle -1 uid's sunrpc: Don't schedule an upcall on a replaced cache entry. net/sunrpc: xpt_auth_cache should be ignored when expired. sunrpc/cache: ensure items removed from cache do not have pending upcalls. sunrpc/cache: use cache_fresh_unlocked consistently and correctly. sunrpc/cache: remove races with queuing an upcall. nfsd4: return delegation immediately if lease fails nfsd4: do not throw away 4.1 lock state on last unlock nfsd4: delegation-based open reclaims should bypass permissions svcrpc: don't error out on small tcp fragment svcrpc: fix handling of too-short rpc's nfsd4: minor read_buf cleanup nfsd4: fix decoding of compounds across page boundaries nfsd4: clean up nfs4_open_delegation NFSD: Don't give out read delegations on creates nfsd4: allow client to send no cb_sec flavors nfsd4: fail attempts to request gss on the backchannel nfsd4: implement minimal SP4_MACH_CRED ...
2013-07-11xfs: Add pquota fields where gquota is used.Chandra Seetharaman
Add project quota changes to all the places where group quota field is used: * add separate project quota members into various structures * split project quota and group quotas so that instead of overriding the group quota members incore, the new project quota members are used instead * get rid of usage of the OQUOTA flag incore, in favor of separate group and project quota flags. * add a project dquot argument to various functions. Not using the pquotino field from superblock yet. Signed-off-by: Chandra Seetharaman <sekharan@us.ibm.com> Reviewed-by: Ben Myers <bpm@sgi.com> Signed-off-by: Ben Myers <bpm@sgi.com>
2013-07-10ext4: fix warning in ext4_evict_inode()Jan Kara
The following race can lead to ext4_evict_inode() seeing i_ioend_count > 0 and thus triggering a sanity check warning: CPU1 CPU2 ext4_end_bio() ext4_evict_inode() ext4_finish_bio() end_page_writeback(); truncate_inode_pages() evict page WARN_ON(i_ioend_count > 0); ext4_put_io_end_defer() ext4_release_io_end() dec i_ioend_count This is possible use-after-free bug since we decrement i_ioend_count in possibly released inode. Since i_ioend_count is used only for sanity checks one possible solution would be to just remove it but for now I'd like to keep those sanity checks to help debugging the new ext4 writeback code. This patch changes ext4_end_bio() to call ext4_put_io_end_defer() before ext4_finish_bio() in the shortcut case when unwritten extent conversion isn't needed. In that case we don't need the io_end so we are safe to drop it early. Reported-by: Guenter Roeck <linux@roeck-us.net> Tested-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Jan Kara <jack@suse.cz> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
2013-07-10mm: remove free_area_cacheMichel Lespinasse
Since all architectures have been converted to use vm_unmapped_area(), there is no remaining use for the free_area_cache. Signed-off-by: Michel Lespinasse <walken@google.com> Acked-by: Rik van Riel <riel@redhat.com> Cc: "James E.J. Bottomley" <jejb@parisc-linux.org> Cc: "Luck, Tony" <tony.luck@intel.com> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: David Howells <dhowells@redhat.com> Cc: Helge Deller <deller@gmx.de> Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru> Cc: Matt Turner <mattst88@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Richard Henderson <rth@twiddle.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-07-10net: rename include/net/ll_poll.h to include/net/busy_poll.hEliezer Tamir
Rename the file and correct all the places where it is included. Signed-off-by: Eliezer Tamir <eliezer.tamir@linux.intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-07-10[CIFS] Fix minor endian error in durable handle patch seriesSteve French
Fix endian warning: CHECK fs/cifs/smb2pdu.c fs/cifs/smb2pdu.c:1068:40: warning: incorrect type in assignment (different base types) fs/cifs/smb2pdu.c:1068:40: expected restricted __le32 [usertype] Next fs/cifs/smb2pdu.c:1068:40: got unsigned long Signed-off-by: Steve French <smfrench@gmail.com>
2013-07-10CIFS: Reconnect durable handles for SMB2Pavel Shilovsky
On reconnects, we need to reopen file and then obtain all byte-range locks held by the client. SMB2 protocol provides feature to make this process atomic by reconnecting to the same file handle with all it's byte-range locks. This patch adds this capability for SMB2 shares. Signed-off-by: Pavel Shilovsky <pshilovsky@samba.org> Signed-off-by: Steven French <steven@steven-GA-970A-DS3.(none)>
2013-07-10CIFS: Make SMB2_open use cifs_open_parms structPavel Shilovsky
to prepare it for further durable handle reconnect processing. Signed-off-by: Pavel Shilovsky <pshilovsky@samba.org> Signed-off-by: Steven French <steven@steven-GA-970A-DS3.(none)>
2013-07-10CIFS: Introduce cifs_open_parms structPavel Shilovsky
and pass it to the open() call. Signed-off-by: Pavel Shilovsky <pshilovsky@samba.org> Signed-off-by: Steven French <steven@steven-GA-970A-DS3.(none)>
2013-07-10CIFS: Request durable open for SMB2 opensPavel Shilovsky
by passing durable context together with a handle caching lease or batch oplock. Signed-off-by: Pavel Shilovsky <pshilovsky@samba.org> Signed-off-by: Steven French <steven@steven-GA-970A-DS3.(none)>
2013-07-10CIFS: Simplify SMB2 create context handlingPavel Shilovsky
to make it easier to add other create context further. Signed-off-by: Pavel Shilovsky <pshilovsky@samba.org> Signed-off-by: Steven French <steven@steven-GA-970A-DS3.(none)>