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130d1f956a
linux/fs/nfs
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Jeff Layton 130d1f956a locks: ensure that fl_owner is always initialized properly in flock and lease codepaths 
Currently, the fl_owner isn't set for flock locks. Some filesystems use
byte-range locks to simulate flock locks and there is a common idiom in
those that does:

    fl->fl_owner = (fl_owner_t)filp;
    fl->fl_start = 0;
    fl->fl_end = OFFSET_MAX;

Since flock locks are generally "owned" by the open file description,
move this into the common flock lock setup code. The fl_start and fl_end
fields are already set appropriately, so remove the unneeded setting of
that in flock ops in those filesystems as well.

Finally, the lease code also sets the fl_owner as if they were owned by
the process and not the open file description. This is incorrect as
leases have the same ownership semantics as flock locks. Set them the
same way. The lease code doesn't actually use the fl_owner value for
anything, so this is more for consistency's sake than a bugfix.

Reported-by: Trond Myklebust <trond.myklebust@primarydata.com>
Signed-off-by: Jeff Layton <jlayton@poochiereds.net>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> (Staging portion)
Acked-by: J. Bruce Fields <bfields@fieldses.org>
2014-06-02 08:09:29 -04:00
..
blocklayout mm: filemap: move radix tree hole searching here 2014-04-03 16:21:00 -07:00
objlayout NFSv4.1 use pnfs_device maxcount for the objectlayout gdia_maxcount 2013-06-28 15:34:45 -04:00
cache_lib.c
cache_lib.h
callback_proc.c NFSv4.1: Minor optimisation in get_layout_by_fh_locked() 2014-02-19 21:21:06 -05:00
callback_xdr.c Merge branch 'labeled-nfs' into linux-next 2013-06-28 16:29:51 -04:00
callback.c nfs: Use PTR_ERR_OR_ZERO in 'nfs41_callback_up' function 2013-10-28 18:16:55 -04:00
callback.h NFS: Add in v4.2 callback operation 2013-06-08 16:20:18 -04:00
client.c NFS: cache parsed auth_info in nfs_server 2013-10-28 15:37:43 -04:00
delegation.c NFS: Fix a delegation callback race 2014-03-02 22:03:12 -05:00
delegation.h NFSv4: Fix CB_RECALL_ANY to only return delegations that are not in use 2013-04-05 17:03:57 -04:00
dir.c NFS client updates for Linux 3.15 2014-04-06 10:09:38 -07:00
direct.c nfs: page cache invalidation for dio 2014-01-13 17:29:50 -05:00
dns_resolve.c NFS: Enabling v4.2 should not recompile nfsd and lockd 2013-11-19 16:20:40 -05:00
dns_resolve.h
file.c locks: ensure that fl_owner is always initialized properly in flock and lease codepaths 2014-06-02 08:09:29 -04:00
fscache-index.c
fscache.c NFS: Use i_writecount to control whether to get an fscache cookie in nfs_open() 2013-09-27 18:40:25 +01:00
fscache.h NFS: Use i_writecount to control whether to get an fscache cookie in nfs_open() 2013-09-27 18:40:25 +01:00
getroot.c NFS:Add labels to client function prototypes 2013-06-08 16:20:15 -04:00
idmap.c NFSv4: Convert idmapper to use the new framework for pipefs dentries 2013-09-01 11:12:42 -04:00
inode.c NFS client updates for Linux 3.15 2014-04-06 10:09:38 -07:00
internal.h Merge branch 'devel' into linux-next 2014-03-17 15:15:21 -04:00
iostat.h
Kconfig nfs: fix pnfs Kconfig defaults 2013-11-15 13:41:43 -05:00
Makefile NFS: Enable slot table helpers for NFSv4.0 2013-09-03 15:26:33 -04:00
mount_clnt.c nfs: have nfs_mount fake up a auth_flavs list when the server didn't provide it 2013-06-28 15:51:51 -04:00
namespace.c nfs: use %p[dD] instead of open-coded (and often racy) equivalents 2013-10-24 23:34:50 -04:00
netns.h
nfs2super.c
nfs2xdr.c
nfs3acl.c NFSv3: Fix return value of nfs3_proc_setacls 2014-02-03 13:14:23 -05:00
nfs3client.c
nfs3proc.c NFS client updates for Linux 3.15 2014-04-06 10:09:38 -07:00
nfs3super.c nfs: use generic posix ACL infrastructure for v3 Posix ACLs 2014-01-26 08:26:20 -05:00
nfs3xdr.c
nfs4_fs.h NFSv4: Clear the open state flags if the new stateid does not match 2014-02-19 21:21:07 -05:00
nfs4client.c NFSv4: Schedule recovery if nfs40_walk_client_list() is interrupted 2014-03-19 08:34:20 -04:00
nfs4file.c Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2013-11-13 15:34:18 +09:00
nfs4filelayout.c NFSv4.1 Fail data server I/O if stateid represents a lost lock 2014-03-05 11:55:24 -05:00
nfs4filelayout.h NFSv4.1: Use layout credentials for get_deviceinfo calls 2013-06-06 16:24:37 -04:00
nfs4filelayoutdev.c nfs: fix dead code of ipv6_addr_scope 2014-01-05 15:38:21 -05:00
nfs4getroot.c NFSv4: Fix security auto-negotiation 2013-09-07 16:18:30 -04:00
nfs4namespace.c NFSv4: Use the correct net namespace in nfs4_update_server 2014-02-17 14:15:46 -05:00
nfs4proc.c NFSv4: Fix a use-after-free problem in open() 2014-03-28 20:12:10 -04:00
nfs4renewd.c
nfs4session.c NFSv4.1: nfs4_destroy_session must call rpc_destroy_waitqueue 2014-02-01 15:13:39 -05:00
nfs4session.h NFSv4.1: nfs4_destroy_session must call rpc_destroy_waitqueue 2014-02-01 15:13:39 -05:00
nfs4state.c NFSv4: Ensure we respect soft mount timeouts during trunking discovery 2014-03-19 08:34:40 -04:00
nfs4super.c mm + fs: store shadow entries in page cache 2014-04-03 16:21:01 -07:00
nfs4sysctl.c
nfs4trace.c NFSv4.1: Add tracepoints for debugging slot table operations 2013-08-22 08:58:27 -04:00
nfs4trace.h NFSv4.1: Add tracepoints for debugging test_stateid events 2013-08-22 08:58:27 -04:00
nfs4xdr.c NFS: Clean up: revert increase in READDIR RPC buffer max size 2014-03-17 15:30:38 -04:00
nfs.h
nfsroot.c
nfstrace.c NFS: Add event tracing for generic NFS lookups 2013-08-22 08:58:18 -04:00
nfstrace.h NFS: fix the handling of NFS_INO_INVALID_DATA flag in nfs_revalidate_mapping 2014-01-27 15:35:56 -05:00
pagelist.c NFS: Don't check lock owner compatability unless file is locked (part 2) 2013-09-06 11:27:41 -04:00
pnfs_dev.c hlist: drop the node parameter from iterators 2013-02-27 19:10:24 -08:00
pnfs.c NFSv4.1: Ensure that we free existing layout segments if we get a new layout 2014-02-19 21:21:06 -05:00
pnfs.h NFSv4.1: Don't trust attributes if a pNFS LAYOUTCOMMIT is outstanding 2014-01-13 12:08:11 -05:00
proc.c nfs: remove synchronous rename code 2014-03-17 15:14:17 -04:00
read.c NFS: dprintk() should not print negative fileids and inode numbers 2014-01-05 15:51:23 -05:00
super.c fs: push sync_filesystem() down to the file system's remount_fs() 2014-03-13 10:14:33 -04:00
symlink.c
sysctl.c
unlink.c nfs: emit a fsnotify_nameremove call in sillyrename codepath 2014-03-17 15:14:17 -04:00
write.c nfs: add memory barriers around NFS_INO_INVALID_DATA and NFS_INO_INVALIDATING 2014-01-28 14:48:18 -05:00