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* mm + fs: store shadow entries in page cacheJohannes Weiner2014-04-031-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Reclaim will be leaving shadow entries in the page cache radix tree upon evicting the real page. As those pages are found from the LRU, an iput() can lead to the inode being freed concurrently. At this point, reclaim must no longer install shadow pages because the inode freeing code needs to ensure the page tree is really empty. Add an address_space flag, AS_EXITING, that the inode freeing code sets under the tree lock before doing the final truncate. Reclaim will check for this flag before installing shadow pages. Signed-off-by: Johannes Weiner <hannes@cmpxchg.org> Reviewed-by: Rik van Riel <riel@redhat.com> Reviewed-by: Minchan Kim <minchan@kernel.org> Cc: Andrea Arcangeli <aarcange@redhat.com> Cc: Bob Liu <bob.liu@oracle.com> Cc: Christoph Hellwig <hch@infradead.org> Cc: Dave Chinner <david@fromorbit.com> Cc: Greg Thelen <gthelen@google.com> Cc: Hugh Dickins <hughd@google.com> Cc: Jan Kara <jack@suse.cz> Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com> Cc: Luigi Semenzato <semenzato@google.com> Cc: Mel Gorman <mgorman@suse.de> Cc: Metin Doslu <metin@citusdata.com> Cc: Michel Lespinasse <walken@google.com> Cc: Ozgun Erdogan <ozgun@citusdata.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Roman Gushchin <klamm@yandex-team.ru> Cc: Ryan Mallon <rmallon@gmail.com> Cc: Tejun Heo <tj@kernel.org> Cc: Vlastimil Babka <vbabka@suse.cz> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* 9P: introduction of a new cache=mmap model.Dominique Martinet2014-01-101-7/+15
| | | | | | | | | - Add cache=mmap option - Make mmap read-write while keeping it as synchronous as possible - Build writeback fid on mmap creation if it is writable Signed-off-by: Dominique Martinet <dominique.martinet@cea.fr> Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>
* 9p: remove useless assignmentGeyslan G. Bem2013-11-231-1/+1
| | | | | | | There is no use of pointer 'fid' before the next assignment. Signed-off-by: Geyslan G. Bem <geyslan@gmail.com> Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>
* 9p: remove unused 'super_block' struct pointerGeyslan G. Bem2013-11-231-2/+0
| | | | | | | Get rid of the useless '*sb' variable. Signed-off-by: Geyslan G. Bem <geyslan@gmail.com> Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>
* 9p: make v9fs_cache_inode_{get,put,set}_cookie empty inlines for !9P_CACHEFSAl Viro2013-10-241-6/+0
| | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* fs: 9p: use strlcpy instead of strncpyChen Gang2013-07-301-2/+2
| | | | | | | For 'NULL' terminated string, recommend always to be ended by zero. Signed-off-by: Chen Gang <gang.chen@asianux.com> Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>
* fs/9p: Remove the unused variable "err" in v9fs_vfs_getattr()Gu Zheng2013-07-071-2/+0
| | | | | | | Delete the unused variable "err" in v9fs_vfs_getattr() Signed-off-by: Gu Zheng <guz.fnst@cn.fujitsu.com> Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>
* 9p: make sure ->lookup() adds fid to the right dentryAl Viro2013-02-281-2/+5
| | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* 9p: untangle ->lookup() a bitAl Viro2013-02-281-18/+9
| | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* 9p: double iput() in ->lookup() if d_materialise_unique() failsAl Viro2013-02-281-1/+0
| | | | | | d_materialise_unique() does iput() itself. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* 9p: v9fs_fid_add() can't fail nowAl Viro2013-02-281-7/+2
| | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* Merge branch 'for-linus' of ↵Linus Torvalds2013-02-251-3/+3
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace Pull user namespace and namespace infrastructure changes from Eric W Biederman: "This set of changes starts with a few small enhnacements to the user namespace. reboot support, allowing more arbitrary mappings, and support for mounting devpts, ramfs, tmpfs, and mqueuefs as just the user namespace root. I do my best to document that if you care about limiting your unprivileged users that when you have the user namespace support enabled you will need to enable memory control groups. There is a minor bug fix to prevent overflowing the stack if someone creates way too many user namespaces. The bulk of the changes are a continuation of the kuid/kgid push down work through the filesystems. These changes make using uids and gids typesafe which ensures that these filesystems are safe to use when multiple user namespaces are in use. The filesystems converted for 3.9 are ceph, 9p, afs, ocfs2, gfs2, ncpfs, nfs, nfsd, and cifs. The changes for these filesystems were a little more involved so I split the changes into smaller hopefully obviously correct changes. XFS is the only filesystem that remains. I was hoping I could get that in this release so that user namespace support would be enabled with an allyesconfig or an allmodconfig but it looks like the xfs changes need another couple of days before it they are ready." * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace: (93 commits) cifs: Enable building with user namespaces enabled. cifs: Convert struct cifs_ses to use a kuid_t and a kgid_t cifs: Convert struct cifs_sb_info to use kuids and kgids cifs: Modify struct smb_vol to use kuids and kgids cifs: Convert struct cifsFileInfo to use a kuid cifs: Convert struct cifs_fattr to use kuid and kgids cifs: Convert struct tcon_link to use a kuid. cifs: Modify struct cifs_unix_set_info_args to hold a kuid_t and a kgid_t cifs: Convert from a kuid before printing current_fsuid cifs: Use kuids and kgids SID to uid/gid mapping cifs: Pass GLOBAL_ROOT_UID and GLOBAL_ROOT_GID to keyring_alloc cifs: Use BUILD_BUG_ON to validate uids and gids are the same size cifs: Override unmappable incoming uids and gids nfsd: Enable building with user namespaces enabled. nfsd: Properly compare and initialize kuids and kgids nfsd: Store ex_anon_uid and ex_anon_gid as kuids and kgids nfsd: Modify nfsd4_cb_sec to use kuids and kgids nfsd: Handle kuids and kgids in the nfs4acl to posix_acl conversion nfsd: Convert nfsxdr to use kuids and kgids nfsd: Convert nfs3xdr to use kuids and kgids ...
| * 9p: Modify the stat structures to use kuid_t and kgid_tEric W. Biederman2013-02-121-3/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 9p has thre strucrtures that can encode inode stat information. Modify all of those structures to contain kuid_t and kgid_t values. Modify he wire encoders and decoders of those structures to use 'u' and 'g' instead of 'd' in the format string where uids and gids are present. This results in all kuid and kgid conversion to and from on the wire values being performed by the same code in protocol.c where the client is known at the time of the conversion. Cc: Eric Van Hensbergen <ericvh@gmail.com> Cc: Ron Minnich <rminnich@gmail.com> Cc: Latchesar Ionkov <lucho@ionkov.net> Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
* | fs/9p: Don't use O_TRUNC flag in TOPEN and TLOPEN requestAneesh Kumar K.V2013-02-101-3/+0
|/ | | | | | | | | | | We do the truncate via setattr request, hence don't pass the O_TRUNC flag in open request. Without this patch we end up sending zero sized write request to server when we try to truncate. Some servers (VirtFS) were not handling that properly. Reported-by: M. Mohan Kumar <mohan@in.ibm.com> Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>
* fs/9p: avoid debug OOPS when reading a long symlinkJim Meyering2012-09-061-4/+4
| | | | | | | | | | Reading a symlink longer than the given buffer, a p9_debug use would try to print the link name (not NUL-terminated) using a %s format. Use %.*s instead, and replace the strncpy+strnlen with functionally equivalent strlen+memcpy. Signed-off-by: Jim Meyering <meyering@redhat.com> Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>
* don't pass nameidata to ->create()Al Viro2012-07-141-1/+1
| | | | | | | | boolean "does it have to be exclusive?" flag is passed instead; Local filesystem should just ignore it - the object is guaranteed not to be there yet. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* stop passing nameidata to ->lookup()Al Viro2012-07-141-4/+4
| | | | | | | | | Just the flags; only NFS cares even about that, but there are legitimate uses for such argument. And getting rid of that completely would require splitting ->lookup() into a couple of methods (at least), so let's leave that alone for now... Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* make finish_no_open() return intAl Viro2012-07-141-4/+2
| | | | | | | namely, 1 ;-) That's what we want to return from ->atomic_open() instances after finish_no_open(). Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* kill struct opendataAl Viro2012-07-141-9/+6
| | | | | | | | | Just pass struct file *. Methods are happier that way... There's no need to return struct file * from finish_open() now, so let it return int. Next: saner prototypes for parts in namei.c Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* make ->atomic_open() return intAl Viro2012-07-141-6/+4
| | | | | | | | | | | | Change of calling conventions: old new NULL 1 file 0 ERR_PTR(-ve) -ve Caller *knows* that struct file *; no need to return it. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* ->atomic_open() prototype change - pass int * instead of bool *Al Viro2012-07-141-3/+3
| | | | | | | | | ... and let finish_open() report having opened the file via that sucker. Next step: don't modify od->filp at all. [AV: FILE_CREATE was already used by cifs; Miklos' fix folded] Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* 9p: implement i_op->atomic_open()Miklos Szeredi2012-07-141-67/+102
| | | | | | | | | Add an ->atomic_open implementation which replaces the atomic open+create operation implemented via ->create. No functionality is changed. Signed-off-by: Miklos Szeredi <mszeredi@suse.cz> CC: Eric Van Hensbergen <ericvh@gmail.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* vfs: Rename end_writeback() to clear_inode()Jan Kara2012-05-061-1/+1
| | | | | | | | | After we moved inode_sync_wait() from end_writeback() it doesn't make sense to call the function end_writeback() anymore. Rename it to clear_inode() which well says what the function really does - set I_CLEAR flag. Signed-off-by: Jan Kara <jack@suse.cz> Signed-off-by: Fengguang Wu <fengguang.wu@intel.com>
* Merge branch 'for-linus' of ↵Linus Torvalds2012-01-101-72/+93
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/ericvh/v9fs * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ericvh/v9fs: fs/9p: iattr_valid flags are kernel internal flags map them to 9p values. fs/9p: We should not allocate a new inode when creating hardlines. fs/9p: v9fs_stat2inode should update suid/sgid bits. 9p: Reduce object size with CONFIG_NET_9P_DEBUG fs/9p: check schedule_timeout_interruptible return value Fix up trivial conflicts in fs/9p/{vfs_inode.c,vfs_inode_dotl.c} due to debug messages having changed to use p9_debug() on one hand, and the changes for umode_t on the other.
| * fs/9p: We should not allocate a new inode when creating hardlines.Aneesh Kumar K.V2012-01-051-19/+24
| | | | | | | | | | | | | | | | | | Don't do new_inode_from fid in case of hardlink creation. This ensures that link count for hardlink files get updated properly. Earlier link count was not updated on removing a hardlink with cache mode enabled. Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>
| * fs/9p: v9fs_stat2inode should update suid/sgid bits.Aneesh Kumar K.V2012-01-051-12/+28
| | | | | | | | | | | | | | | | | | Create a new helper that update the permission bits and use that, instead of opencoding the logic. Reported and bisected by: M. Mohan Kumar <mohan@in.ibm.com> Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>
| * 9p: Reduce object size with CONFIG_NET_9P_DEBUGJoe Perches2012-01-051-43/+43
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Reduce object size by deduplicating formats. Use vsprintf extension %pV. Rename P9_DPRINTK uses to p9_debug, align arguments. Add function for _p9_debug and macro to add __func__. Add missing "\n"s to p9_debug uses. Remove embedded function names as p9_debug adds it. Remove P9_EPRINTK macro and convert use to pr_<level>. Add and use pr_fmt and pr_<level>. $ size fs/9p/built-in.o* text data bss dec hex filename 62133 984 16000 79117 1350d fs/9p/built-in.o.new 67342 984 16928 85254 14d06 fs/9p/built-in.o.old $ size net/9p/built-in.o* text data bss dec hex filename 88792 4148 22024 114964 1c114 net/9p/built-in.o.new 94072 4148 23232 121452 1da6c net/9p/built-in.o.old Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>
* | 9p: propagate umode_tAl Viro2012-01-031-10/+11
| | | | | | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* | 9p: don't bother with unixmode2p9mode() for link() and symlink()Al Viro2012-01-031-12/+8
| | | | | | | | | | | | | | | | | | Pass perm to v9fs_vfs_mkspecial() instead of passing mode; calculate in caller when done for mknod(), use known value for link() and symlink(). As the result, we avoid a bit of work *and* stop mixing mode_t with P9_DMLINK. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* | switch ->mknod() to umode_tAl Viro2012-01-031-1/+1
| | | | | | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* | switch ->create() to umode_tAl Viro2012-01-031-1/+1
| | | | | | | | | | | | | | | | vfs_create() ignores everything outside of 16bit subset of its mode argument; switching it to umode_t is obviously equivalent and it's the only caller of the method Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* | switch vfs_mkdir() and ->mkdir() to umode_tAl Viro2012-01-031-1/+1
| | | | | | | | | | | | | | vfs_mkdir() gets int, but immediately drops everything that might not fit into umode_t and that's the only caller of ->mkdir()... Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* | vfs: fix the stupidity with i_dentry in inode destructorsAl Viro2012-01-031-1/+0
|/ | | | | | | | | | Seeing that just about every destructor got that INIT_LIST_HEAD() copied into it, there is no point whatsoever keeping this INIT_LIST_HEAD in inode_init_once(); the cost of taking it into inode_init_always() will be negligible for pipes and sockets and negative for everything else. Not to mention the removal of boilerplate code from ->destroy_inode() instances... Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* filesystems: add set_nlink()Miklos Szeredi2011-11-021-2/+2
| | | | | | | | | Replace remaining direct i_nlink updates with a new set_nlink() updater function. Signed-off-by: Miklos Szeredi <mszeredi@suse.cz> Tested-by: Toshiyuki Okajima <toshi.okajima@jp.fujitsu.com> Signed-off-by: Christoph Hellwig <hch@lst.de>
* fs/9p: inode file operation is properly initialized init_special_inodeAneesh Kumar K.V2011-10-241-2/+0
| | | | | Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>
* fs/9p: Always ask new inode in lookup for cache mode disabledAneesh Kumar K.V2011-09-061-7/+21
| | | | | | | | This make sure we don't end up reusing the unlinked inode object. The ideal way is to use inode i_generation. But i_generation is not available in userspace always. Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
* fs/9p: Add OS dependent open flags in 9p protocolAneesh Kumar K.V2011-09-061-1/+15
| | | | | | | | Some of the flags are OS/arch dependent we add a 9p protocol value which maps to asm-generic/fcntl.h values in Linux Based on the original patch from Venkateswararao Jujjuri <jvrao@linux.vnet.ibm.com> Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
* fs/9p: Don't update file type when updating file attributesAneesh Kumar K.V2011-09-061-41/+50
| | | | | | | | We should only update attributes that we can change on stat2inode. Also do file type initialization in v9fs_init_inode. Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>
* fs/9p: Add fid before dentry instantiationAneesh Kumar K.V2011-09-061-3/+1
| | | | | | | | | d_instantiate marks the dentry positive. So a parallel lookup and mkdir of the directory can find dentry that doesn't have fid attached. This can result in both the code path doing v9fs_fid_add which results in v9fs_dentry leak. Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>
* fs/9p: add 9P2000.L unlinkat operationAneesh Kumar K.V2011-07-231-18/+30
| | | | | | | | | | | | | | | | | | | | | unlinkat - Remove a directory entry size[4] Tunlinkat tag[2] dirfid[4] name[s] flag[4] size[4] Runlinkat tag[2] older Tremove have the below request format size[4] Tremove tag[2] fid[4] The remove message is used to remove a directory entry either file or directory The remove opreation is actually a directory opertation and should ideally have dirfid, if not we cannot represent the fid on server with anything other than name. We will have to derive the directory name from fid in the Tremove request. NOTE: The operation doesn't clunk the unlink fid. Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>
* fs/9p: add 9P2000.L renameat operationAneesh Kumar K.V2011-07-231-3/+6
| | | | | | | | | | | | | | | | | | | | renameat - change name of file or directory size[4] Trenameat tag[2] olddirfid[4] oldname[s] newdirfid[4] newname[s] size[4] Rrenameat tag[2] older Trename have the below request format size[4] Trename tag[2] fid[4] newdirfid[4] name[s] The rename message is used to change the name of a file, possibly moving it to a new directory. The rename opreation is actually a directory opertation and should ideally have olddirfid, if not we cannot represent the fid on server with anything other than name. We will have to derive the old directory name from fid in the Trename request. Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>
* fs/9p: Always ask new inode in createAneesh Kumar K.V2011-07-231-5/+17
| | | | | | | | | This make sure we don't end up reusing the unlinked inode object. The ideal way is to use inode i_generation. But i_generation is not available in userspace always. Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>
* fs/9p: When doing inode lookup compare qid details and inode mode bits.Aneesh Kumar K.V2011-07-231-3/+33
| | | | | | | | | | | | | This make sure we don't use wrong inode from the inode hash. The inode number of the file deleted is reused by the next file system object created and if we only use inode number for inode hash lookup we could end up with wrong struct inode. Also compare inode generation number. Not all Linux file system provide st_gen in userspace. So it could be 0; Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>
* fs/9p: remove rename work around in 9pAneesh Kumar K.V2011-07-231-5/+0
| | | | | | | Now that VFS does the right thing remove the work around. Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>
* no need to check for LOOKUP_OPEN in ->create() instancesAl Viro2011-07-201-2/+2
| | | | | | | ... it will be set in nd->flag for all cases with non-NULL nd (i.e. when called from do_last()). Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* don't transliterate lower bits of ->intent.open.flags to FMODE_...Al Viro2011-07-201-1/+1
| | | | | | ->create() instances are much happier that way... Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* 9p: remove unnecessary dentry_unhash on rmdir, dir renameSage Weil2011-05-281-4/+0
| | | | | | | | | | | 9p has no problems with references to unlinked directories. CC: Eric Van Hensbergen <ericvh@gmail.com> CC: Ron Minnich <rminnich@sandia.gov> CC: Latchesar Ionkov <lucho@ionkov.net> CC: v9fs-developer@lists.sourceforge.net Signed-off-by: Sage Weil <sage@newdream.net> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* vfs: push dentry_unhash on rename_dir into file systemsSage Weil2011-05-261-0/+3
| | | | | | | | | | Only a few file systems need this. Start by pushing it down into each rename method (except gfs2 and xfs) so that it can be dealt with on a per-fs basis. Acked-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Sage Weil <sage@newdream.net> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* vfs: push dentry_unhash on rmdir into file systemsSage Weil2011-05-261-0/+1
| | | | | | | | | | | | Only a few file systems need this. Start by pushing it down into each fs rmdir method (except gfs2 and xfs) so it can be dealt with on a per-fs basis. This does not change behavior for any in-tree file systems. Acked-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Sage Weil <sage@newdream.net> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* fs/9p: Add v9fs_dentry2v9sesAneesh Kumar K.V2011-03-221-3/+3
| | | | | | | | Add the new static inline and use the same Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> Signed-off-by: Venkateswararao Jujjuri <jvrao@linux.vnet.ibm.com> Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>
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