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Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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memcpy() from userland pointer is a Bad Thing(tm)
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Fallout from commit 46d7b522ebf486edbd096965d534cc6465e9e309 ("uml: move
hppfs_kern.c to hppfs.c")
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Acked-by: Jeff Dike <jdike@addtoit.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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* git://git.kernel.org/pub/scm/linux/kernel/git/sfrench/cifs-2.6: (21 commits)
[CIFS] Remove debug statement
Fix possible access to undefined memory region.
[CIFS] Enable DFS support for Windows query path info
[CIFS] Enable DFS support for Unix query path info
[CIFS] add missing seq_printf to cifs_show_options for hard mount option
[CIFS] add more complete mount options to cifs_show_options
[CIFS] Add missing defines for DFS
CIFSGetDFSRefer cleanup + dfs_referral_level_3 fixed to conform REFERRAL_V3 the MS-DFSC spec.
Fixed DFS code to work with new 'build_path_from_dentry', that returns full path if share in the dfs, now.
[CIFS] enable parsing for transport encryption mount parm
[CIFS] Finishup DFS code
[CIFS] BKL-removal: convert CIFS over to unlocked_ioctl
[CIFS] suppress duplicate warning
[CIFS] Fix paths when share is in DFS to include proper prefix
add function to convert access flags to legacy open mode
clarify return value of cifs_convert_flags()
[CIFS] don't explicitly do a FindClose on rewind when directory search has ended
[CIFS] cleanup old checkpatch warnings
[CIFS] CIFSSMBPosixLock should return -EINVAL on error
fix memory leak in CIFSFindNext
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Signed-off-by: Steve French <sfrench@us.ibm.com>
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Signed-off-by: Igor Mammedov <niallain@gmail.com>
Signed-off-by: Steve French <sfrench@us.ibm.com>
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* 'for-2.6.26' of git://linux-nfs.org/~bfields/linux: (25 commits)
svcrdma: Verify read-list fits within RPCSVC_MAXPAGES
svcrdma: Change svc_rdma_send_error return type to void
svcrdma: Copy transport address and arm CQ before calling rdma_accept
svcrdma: Set rqstp transport address in rdma_read_complete function
svcrdma: Use ib verbs version of dma_unmap
svcrdma: Cleanup queued, but unprocessed I/O in svc_rdma_free
svcrdma: Move the QP and cm_id destruction to svc_rdma_free
svcrdma: Add reference for each SQ/RQ WR
svcrdma: Move destroy to kernel thread
svcrdma: Shrink scope of spinlock on RQ CQ
svcrdma: Use standard Linux lists for context cache
svcrdma: Simplify RDMA_READ deferral buffer management
svcrdma: Remove unused READ_DONE context flags bit
svcrdma: Return error from rdma_read_xdr so caller knows to free context
svcrdma: Fix error handling during listening endpoint creation
svcrdma: Free context on post_recv error in send_reply
svcrdma: Free context on ib_post_recv error
svcrdma: Add put of connection ESTABLISHED reference in rdma_cma_handler
svcrdma: Fix return value in svc_rdma_send
svcrdma: Fix race with dto_tasklet in svc_rdma_send
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* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (27 commits)
pktgen: make sure that pktgen_thread_worker has been executed
[VLAN]: Propagate selected feature bits to VLAN devices
drivers/atm/: remove CVS keywords
vlan: Correctly handle device notifications for layered VLAN devices
net: Fix call to ->change_rx_flags(dev, IFF_MULTICAST) in dev_change_flags()
net_sched: cls_api: fix return value for non-existant classifiers
ipsec: Use the correct ip_local_out function
ipv6 addrconf: Allow infinite prefix lifetime.
ipv6 route: Fix lifetime in netlink.
ipv6 addrconf: Fix route lifetime setting in corner case.
ndisc: Add missing strategies for per-device retrans timer/reachable time settings.
ipv6: Move <linux/in6.h> from header-y to unifdef-y.
l2tp: avoid skb truesize bug if headroom is increased
wireless: Create 'device' symlink in sysfs
wireless, airo: waitbusy() won't delay
libertas: fix command timeout after firmware failure
mac80211: Add RTNL version of ieee80211_iterate_active_interfaces
mac80211 : Association with 11n hidden ssid ap.
hostap: fix "registers" registration in procfs
isdn/capi: Return proper errnos on module init.
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Final piece for handling DFS in query_path_info, constructing a
fake inode for the junction directory which the submount will cover.
This handles the non-Unix (Windows etc.) code path.
Signed-off-by: Steve French <sfrench@us.ibm.com>
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Final piece for handling DFS in unix_query_path_info, constructing a
fake inode for the junction directory which the submount will cover.
Acked-by: Igor Mammedov <niallain@gmail.com>
Signed-off-by: Steve French <sfrench@us.ibm.com>
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* git://git.kernel.org/pub/scm/linux/kernel/git/steve/gfs2-2.6-fixes:
[GFS2] Prefer strlcpy() over snprintf()
[GFS2] Fix cast from unsigned int to s64
[GFS2] filesystem consistency error from do_strip
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* 'audit.b51' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/audit-current:
[PATCH] list_for_each_rcu must die: audit
[patch 1/1] audit_send_reply(): fix error-path memory leak
[PATCH] open sessionid permissions
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* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6:
[PATCH] return to old errno choice in mkdir() et.al.
[Patch] fs/binfmt_elf.c: fix wrong return values
[PATCH] get rid of leak in compat_execve()
[Patch] fs/binfmt_elf.c: fix a wrong free
[PATCH] avoid multiplication overflows and signedness issues for max_fds
[PATCH] dup_fd() part 4 - race fix
[PATCH] dup_fd() - part 3
[PATCH] dup_fd() part 2
[PATCH] dup_fd() fixes, part 1
[PATCH] take init_files to fs/file.c
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Also Kari Hurtta noticed a missing check in the same function which is now fixed.
CC: Kari Hurtta <hurtta+gmane@siilo.fmi.fi>
Signed-off-by: Steve French <sfrench@us.ibm.com>
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The return value on writes to the plock device should be
the number of bytes written. It was returning 0 instead
when an nfs lock callback was involved.
Reported-by: Nathan Straz <nstraz@redhat.com>
Signed-off-by: David Teigland <teigland@redhat.com>
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Signed-off-by: Marcin Slusarz <marcin.slusarz@gmail.com>
Cc: Christine Caulfield <ccaulfie@redhat.com>
Cc: David Teigland <teigland@redhat.com>
Cc: cluster-devel@redhat.com
Signed-off-by: David Teigland <teigland@redhat.com>
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Removed the section mismatch message:
WARNING: fs/dlm/dlm.o(.init.text+0x132): Section mismatch in reference from the function init_module() to the function .exit.text:dlm_netlink_exit()
Since dlm_netlink_exit() is called in the init_dlm() error handling,
the __exit annotation has been removed.
Signed-off-by: Leonardo Potenza <lpotenza@inwind.it>
Signed-off-by: David Teigland <teigland@redhat.com>
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The semaphore connections_lock is used as a mutex. Convert it to the mutex
API.
Signed-off-by: Matthias Kaehlcke <matthias@kaehlcke.net>
Cc: Christine Caulfield <ccaulfie@redhat.com>
Cc: David Teigland <teigland@redhat.com>
Cc: Steven Whitehouse <swhiteho@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: David Teigland <teigland@redhat.com>
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We're currently dereferencing the client after we drop our reference
count to it.
Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
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* 'hotfixes' of git://git.linux-nfs.org/projects/trondmy/nfs-2.6:
SUNRPC: AUTH_SYS "machine creds" shouldn't use negative valued uid/gid
nfs: make nfs4_drop_state_owner() static
nfs: path_{get,put}() cleanups
nfs: replace remaining __FUNCTION__ occurrences
nfs/lsm: make NFSv4 set LSM mount options
NFSv4: Check the return value of decode_compound_hdr_arg()
nfs: fix race in nfs_dirty_request
NFS: Ensure that 'noac' and/or 'actimeo=0' turn off attribute caching
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The current permissions on sessionid are a little too restrictive.
Signed-off-by: Steve Grubb <sgrubb@redhat.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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adds various options to cifs_show_options
(displayed when you cat /proc/mounts with a cifs mount). I limited
the new ones to values that are associated with the mount with the
exception of "seal" (which is a per tree connection property, but I
thought was important enough to show through).
Eventually cifs's parse_mount_options also needs to
be rewritten to use the match_token API but that would be a big enough
change that I would prefer that changing parse_mount_options wait
until next release.
Signed-off-by: Steve French <sfrench@us.ibm.com>
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In case when both EEXIST and EROFS would apply we used to
return the former in mkdir(2) and friends. Lest anyone suspects
us of being consistent, in the same situation knfsd gave clients
nfs_erofs...
ro-bind series had switched the syscall side of things to
returning -EROFS and immediately broke an application - namely,
mkdir -p. Patch restores the original behaviour...
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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create_elf_tables() returns 0 on success. But when strnlen_user() "fails",
it returns 0 directly. So this is wrong.
Signed-off-by: WANG Cong <wangcong@zeuux.org>
Cc: Alexander Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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Even though copy_compat_strings() doesn't cache the pages,
copy_strings_kernel() and stuff indirectly called by e.g.
->load_binary() is doing that, so we need to drop the
cache contents in the end.
[found by WANG Cong <wangcong@zeuux.org>]
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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In kmalloc failing path, we shouldn't free pointers in 'info',
because the struct 'info' is uninitilized when kmalloc is called.
And when kmalloc returns NULL, it's needless to kfree it.
Signed-off-by: WANG Cong <wangcong@zeuux.org>
Cc: Alexander Viro <viro@zeniv.linux.org.uk>
Reviewed-by: Pekka Enberg <penberg@cs.helsinki.fi>
--
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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Limit sysctl_nr_open - we don't want ->max_fds to exceed MAX_INT and
we don't want size calculation for ->fd[] to overflow.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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Parent _can_ be a clone task, contrary to the comment. Moreover,
more files could be opened while we allocate a copy, in which case
we end up copying only part into new descriptor table. Since what
we get _is_ affected by all changes in the old range, we can get
rather weird effects - e.g.
dup2(0, 1024); close(0);
in parallel with fork() resulting in child that sees the effect of
close(), but not that of dup2() done just before that close().
What we need is to recalculate the open_count after having reacquired
->file_lock and if external fdtable we'd just allocated is too small for
it, free the sucker and redo allocation.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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merge alloc_files() into dup_fd(), leave setting newf->fdt until the end
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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use alloc_fdtable() instead of expand_files(), get rid of pointless
grabbing newf->file_lock, kill magic in copy_fdtable() that used to
be there only to skip copying when called from dup_fd().
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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Move the sucker to fs/file.c in preparation to the rest
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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Use asm/byteorder.h instead.
Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Also has minor cleanup of previous patch
CC: Igor Mammedov <niallain@gmail.com>
Signed-off-by: Steve French <sfrench@us.ibm.com>
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Signed-off-by: Igor Mammedov <niallain@gmail.com>
Signed-off-by: Steve French <sfrench@us.ibm.com>
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nfs4_drop_state_owner() can now become static.
Signed-off-by: Adrian Bunk <bunk@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
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Here are some more places where path_{get,put}() can be used instead of
dput()/mntput() pair.
Signed-off-by: Jan Blunck <jblunck@suse.de>
Cc: Trond Myklebust <trond.myklebust@fys.uio.no>
Cc: "J. Bruce Fields" <bfields@fieldses.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
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__FUNCTION__ is gcc-specific, use __func__
Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Cc: Trond Myklebust <trond.myklebust@fys.uio.no>
Cc: "J. Bruce Fields" <bfields@fieldses.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
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NFSv3 get_sb operations call into the LSM layer to set security options passed
from userspace. NFSv4 hooks were not originally added since it was reasonably
late in the merge window and NFSv3 was the only thing that had regressed (v4
has never supported any LSM options)
This patch makes NFSv4 call into the LSM to set security options rather than
just blindly dropping them with no notice to the user as happens today. This
patch was tested in a simple NFSv4 environment with the context= option and
appeared to work as expected.
Signed-off-by: Eric Paris <eparis@redhat.com>
Cc: Trond Myklebust <trond.myklebust@fys.uio.no>
Cc: "J. Bruce Fields" <bfields@fieldses.org>
Cc: Stephen Smalley <sds@tycho.nsa.gov>
Acked-by: James Morris <jmorris@namei.org>
Cc: Casey Schaufler <casey@schaufler-ca.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
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If decode_compound_hdr_arg() returns a resource error, then we cannot
proceed to process the callback. Return a 'GARBAGE_ARGS' rpc-level error to
the caller instead.
If, however, the minor version field is incorrect, then we need to
propagate the resulting NFS4ERR_MINOR_VERS_MISMATCH error back as the
compound status field (setting the nops field to 0).
Finally, if encode_compound_hdr_res() returns an error, we need to return
an RPC_SYSTEM_ERR to the caller.
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
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When called from nfs_flush_incompatible, the req is not locked, so
req->wb_page might be set to NULL before it is used by PageWriteback.
Signed-off-by: Fred Isaman <iisaman@citi.umich.edu>
Signed-off-by: Benny Halevy <bhalevy@panasas.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
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Both the 'noac' and 'actimeo=0' mount options should ensure that attributes
are not cached, however a bug in nfs_attribute_timeout() means that
currently, the attributes may in fact get cached for up to one jiffy. This
has been seen to cause corruption in some applications.
The reason for the bug is that the time_in_range() test returns 'true' as
long as the current time lies between nfsi->read_cache_jiffies and
nfsi->read_cache_jiffies + nfsi->attrtimeo. In other words, if jiffies
equals nfsi->read_cache_jiffies, then we still cache the attribute data.
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
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Signed-off-by: Igor Mammedov <niallain@gmail.com>
Signed-off-by: Steve French <sfrench@us.ibm.com>
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Updating the current transaction's t_state is protected by j_state_lock. We
need to do the same when updating the t_state to T_COMMIT.
Acked-by: Jan Kara <jack@suse.cz>
Signed-off-by: Mingming Cao <cmm@us.ibm.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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If the block allocator gets blocks out of system zone ext4 calls
ext4_error. But if the file system is mounted with errors=continue
retry block allocation. We need to mark the system zone blocks as
in use to make sure retry don't pick them again
System zone is the block range mapping block bitmap, inode bitmap and inode
table.
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: Mingming Cao <cmm@us.ibm.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
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Samba now supports transport encryption on particular exports
(mounted tree ids can be encrypted for servers which support the
unix extensions). This adds parsing support to cifs mount
option parsing for this.
Signed-off-by: Steve French <sfrench@us.ibm.com>
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Fixup GetDFSRefer to prepare for cleanup of SMB response processing
Fix build warning in link.c
Signed-off-by: Steve French <sfrench@us.ibm.com>
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cifs_ioctl doesn't seem to need the BKL for anything, so convert it over
to use unlocked_ioctl.
Signed-off-by: Andi Kleen <andi@firstfloor.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Steve French <sfrench@us.ibm.com>
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fs/cifs/dir.c: In function 'cifs_ci_compare':
fs/cifs/dir.c:582: warning: passing argument 1 of 'memcpy' discards
qualifiers from pointer target type
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Steve French <sfrench@us.ibm.com>
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It is possible that the entry in sysfs already exists, one case of this is
when a network device is renamed to bonding_masters. Anyway, in this case
the proper error path is for device_rename to return an error code, not to
generate bogus backtrace and errors.
Also, to avoid possible races, the create link should be done before the
remove link. This makes a device rename atomic operation like other renames.
Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Al Viro
Linus Torvalds
Steve French
Igor Mammedov
David Teigland
Marcin Slusarz
Leonardo Potenza
Matthias Kaehlcke
J. Bruce Fields
Steve Grubb
Al Viro
WANG Cong
Harvey Harrison
Adrian Bunk
Jan Blunck
Eric Paris
Trond Myklebust
Fred Isaman
Mingming Cao
Aneesh Kumar K.V
Stephen Hemminger