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feb9dad520
linux/fs/nfsd
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Oleg Drokin feb9dad520 nfsd: Always lock state exclusively. 
It used to be the case that state had an rwlock that was locked for write
by downgrades, but for read for upgrades (opens). Well, the problem is
if there are two competing opens for the same state, they step on
each other toes potentially leading to leaking file descriptors
from the state structure, since access mode is a bitmap only set once.

Signed-off-by: Oleg Drokin <green@linuxhacker.ru>
Cc: stable@vger.kernel.org
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
2016-06-15 22:03:31 -04:00
..
acl.h nfsd4: remove nfs4_acl_new 2014-07-08 17:14:27 -04:00
auth.c nfsd: silence sparse warning about accessing credentials 2014-07-17 16:15:35 -04:00
auth.h nfsd: Remove nfsd_luid, nfsd_lgid, nfsd_ruid and nfsd_rgid 2013-02-13 06:15:51 -08:00
blocklayout.c nfsd: Fix NFSD_MDS_PR_KEY on 32-bit by adding ULL postfix 2016-06-14 11:50:04 -04:00
blocklayoutxdr.c nfsd: better layoutupdate bounds-checking 2016-03-22 14:39:35 -04:00
blocklayoutxdr.h nfsd: add SCSI layout support 2016-03-18 11:42:53 -04:00
cache.h nfsd: Remove the cache_hash list 2014-08-17 12:00:12 -04:00
current_stateid.h
export.c sunrpc/nfsd: Remove redundant code by exports seq_operations functions 2015-08-13 08:59:02 -04:00
export.h nfsd: include linux/nfs4.h in export.h 2015-08-13 10:21:21 -04:00
fault_inject.c nfsd: remove old fault injection infrastructure 2014-08-05 10:55:10 -04:00
idmap.h nfsd: Remove duplicate define of IDMAP_NAMESZ/IDMAP_TYPE_xx 2015-07-20 14:58:46 -04:00
Kconfig nfsd: block and scsi layout drivers need to depend on CONFIG_BLOCK 2016-03-18 11:42:54 -04:00
lockd.c lockd: constify nlmsvc_binding structure 2016-01-07 10:10:50 -05:00
Makefile nfsd: add SCSI layout support 2016-03-18 11:42:53 -04:00
netns.h nfsd: recover: constify nfsd4_client_tracking_ops structures 2015-11-23 12:15:30 -07:00
nfs2acl.c nfsd: Add macro NFS_ACL_MASK for ACL 2015-07-20 14:58:46 -04:00
nfs3acl.c nfsd: Add macro NFS_ACL_MASK for ACL 2015-07-20 14:58:46 -04:00
nfs3proc.c don't bother with ->d_inode->i_sb - it's always equal to ->d_sb 2016-04-10 17:11:51 -04:00
nfs3xdr.c A very quiet cycle for nfsd, mainly just an RDMA update from Chuck Lever. 2016-05-24 14:39:20 -07:00
nfs4acl.c nfsd: Fix two typos in comments 2015-08-13 10:26:24 -04:00
nfs4callback.c nfsd4/rpc: move backchannel create logic into rpc code 2016-06-15 10:32:25 -04:00
nfs4idmap.c nfsd: Remove duplicate define of IDMAP_NAMESZ/IDMAP_TYPE_xx 2015-07-20 14:58:46 -04:00
nfs4layouts.c nfsd: handle seqid wraparound in nfsd4_preprocess_layout_stateid 2016-05-13 15:34:47 -04:00
nfs4proc.c nfsd: add SCSI layout support 2016-03-18 11:42:53 -04:00
nfs4recover.c Various bugfixes, a RDMA update from Chuck Lever, and support for a new 2016-03-24 10:41:00 -07:00
nfs4state.c nfsd: Always lock state exclusively. 2016-06-15 22:03:31 -04:00
nfs4xdr.c nfsd: use short read as well as i_size to set eof 2016-03-23 16:02:39 -04:00
nfscache.c nfsd: remove recurring workqueue job to clean DRC 2015-11-10 09:25:51 -05:00
nfsctl.c nfsd: fix nsfd startup race triggering BUG_ON 2015-04-21 16:16:03 -04:00
nfsd.h nfsd: eliminate NFSD_DEBUG 2015-04-21 16:16:02 -04:00
nfsfh.c don't bother with ->d_inode->i_sb - it's always equal to ->d_sb 2016-04-10 17:11:51 -04:00
nfsfh.h wrappers for ->i_mutex access 2016-01-22 18:04:28 -05:00
nfsproc.c nfsd: Disable NFSv2 timestamp workaround for NFSv3+ 2015-05-29 11:04:01 -04:00
nfssvc.c nfsd: Fix nfsd leaks sunrpc module references 2016-01-07 10:10:51 -05:00
nfsxdr.c VFS: normal filesystems (and lustre): d_inode() annotations 2015-04-15 15:06:57 -04:00
pnfs.h nfsd: add SCSI layout support 2016-03-18 11:42:53 -04:00
state.h nfsd: Always lock state exclusively. 2016-06-15 22:03:31 -04:00
stats.c nfsd: move <linux/nfsd/stats.h> to fs/nfsd 2014-05-06 17:54:55 -04:00
stats.h nfsd: move <linux/nfsd/stats.h> to fs/nfsd 2014-05-06 17:54:55 -04:00
trace.c nfsd: move include of state.h from trace.c to trace.h 2015-10-23 15:57:29 -04:00
trace.h nfsd: add new io class tracepoint 2016-01-14 17:32:51 -05:00
vfs.c nfsd: use RWF_SYNC 2016-05-01 19:58:39 -04:00
vfs.h nfsd: use short read as well as i_size to set eof 2016-03-23 16:02:39 -04:00
xdr3.h nfsd: fix encode_entryplus_baggage stack usage 2014-01-23 13:50:27 -05:00
xdr4.h nfsd: implement the NFSv4.2 CLONE operation 2015-12-07 23:12:00 -05:00
xdr4cb.h nfsd: implement pNFS layout recalls 2015-02-02 18:09:43 +01:00
xdr.h nfsd: handle vfs_getattr errors in acl protocol 2013-02-26 02:46:09 -05:00