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f657f8eef3
linux/fs/nfs
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J. Bruce Fields f657f8eef3 nfs: don't atempt blocking locks on nfs reexports 
NFS implements blocking locks by blocking inside its lock method.  In
the reexport case, this blocks the nfs server thread, which could lead
to deadlocks since an nfs server thread might be required to unlock the
conflicting lock.  It also causes a crash, since the nfs server thread
assumes it can free the lock when its lm_notify lock callback is called.

Ideal would be to make the nfs lock method return without blocking in
this case, but for now it works just not to attempt blocking locks.  The
difference is just that the original client will have to poll (as it
does in the v4.0 case) instead of getting a callback when the lock's
available.

Signed-off-by: J. Bruce Fields <bfields@redhat.com>
Acked-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
2021-08-26 15:32:10 -04:00
..
blocklayout block: Add bio_max_segs 2021-02-26 15:49:51 -07:00
filelayout NFS: fix an incorrect limit in filelayout_decode_layout() 2021-05-20 12:17:08 -04:00
flexfilelayout pNFS/flexfiles: fix incorrect size check in decode_nfs_fh() 2021-04-14 09:36:29 -04:00
cache_lib.c
cache_lib.h
callback_proc.c NFSv4.x: Don't return NFS4ERR_NOMATCHING_LAYOUT if we're unmounting 2021-04-16 08:50:21 -04:00
callback_xdr.c SUNRPC: Make trace_svc_process() display the RPC procedure symbolically 2021-01-25 09:36:23 -05:00
callback.c SUNRPC: Cache the process user cred in the RPC server listener 2019-04-24 09:46:35 -04:00
callback.h NFSv4: Add support for CB_RECALL_ANY for flexfiles layouts 2020-03-16 08:34:30 -04:00
client.c NFS: Fix a potential NULL dereference in nfs_get_client() 2021-06-03 10:14:42 -04:00
delegation.c NFSv4: Add lease breakpoints in case of a delegation recall or return 2021-06-13 19:36:28 -04:00
delegation.h NFSv4: Fix delegation return in cases where we have to retry 2021-06-13 19:36:27 -04:00
dir.c NFS client updates for Linux 5.13 2021-05-07 11:23:41 -07:00
direct.c NFSv4: Fix an Oops in pnfs_mark_request_commit() when doing O_DIRECT 2021-06-13 19:36:49 -04:00
dns_resolve.c NFS: remove duplicate headers 2020-05-27 10:10:12 -04:00
dns_resolve.h
export.c nfs: don't atempt blocking locks on nfs reexports 2021-08-26 15:32:10 -04:00
file.c NFS: Replace use of NFS_INO_REVAL_PAGECACHE when checking cache validity 2021-04-12 20:11:44 -04:00
fs_context.c NFS client updates for Linux 5.13 2021-05-07 11:23:41 -07:00
fscache-index.c nfs: fscache: use timespec64 in inode auxdata 2020-01-15 10:54:30 -05:00
fscache.c NFS: Fix fscache read from NFS after cache error 2021-07-08 14:03:26 -04:00
fscache.h nfs: fscache: use timespec64 in inode auxdata 2020-01-15 10:54:30 -05:00
getroot.c nfs: update has_sec_mnt_opts after cloning lsm options from parent 2021-06-28 09:34:39 -04:00
inode.c Merge branch 'leases-devel' 2021-06-29 13:13:34 -04:00
internal.h NFS client updates for Linux 5.13 2021-05-07 11:23:41 -07:00
io.c NFS: Fix up incorrect documentation 2021-04-05 09:04:20 -04:00
iostat.h
Kconfig nfs: fix PNFS_FLEXFILE_LAYOUT Kconfig default 2021-03-08 11:47:47 -05:00
Makefile NFSv4.2: add client side xattr caching. 2020-07-13 17:52:46 -04:00
mount_clnt.c nfs: hornor timeo and retrans option when mounting NFSv3 2021-04-05 09:04:21 -04:00
namespace.c nfs: Remove trailing semicolon in macros 2021-05-27 09:19:33 -04:00
netns.h NFS: Add sysfs support for per-container identifier 2019-07-06 14:54:49 -04:00
nfs2super.c treewide: Add SPDX license identifier for more missed files 2019-05-21 10:50:45 +02:00
nfs2xdr.c SUNRPC: Clean up the handling of page padding in rpc_prepare_reply_pages() 2020-12-02 14:05:53 -05:00
nfs3_fs.h fs: make helpers idmap mount aware 2021-01-24 14:27:20 +01:00
nfs3acl.c NFS: Add a cache validity flag argument to nfs_revalidate_inode() 2021-04-12 20:11:44 -04:00
nfs3client.c NFS: Additional refactoring for fs_context conversion 2020-01-15 10:15:17 -05:00
nfs3proc.c nfs: fix acl memory leak of posix_acl_create() 2021-06-21 12:06:16 -04:00
nfs3super.c treewide: Add SPDX license identifier for more missed files 2019-05-21 10:50:45 +02:00
nfs3xdr.c NFSv4: Catch and trace server filehandle encoding errors 2021-04-14 09:36:29 -04:00
nfs4_fs.h NFSv4: Add support for application leases underpinned by a delegation 2021-06-13 19:36:28 -04:00
nfs4client.c NFSv4: Initialise connection to the server in nfs4_alloc_client() 2021-06-13 19:36:49 -04:00
nfs4file.c NFSv4: Add support for application leases underpinned by a delegation 2021-06-13 19:36:28 -04:00
nfs4getroot.c
nfs4idmap.c NFS: Only reference user namespace from nfs4idmap struct instead of cred 2020-10-13 15:56:54 -04:00
nfs4idmap.h
nfs4namespace.c nfs: Fix memory leak of export_path 2020-06-26 08:43:14 -04:00
nfs4proc.c Merge part 2 of branch 'sysfs-devel' 2021-07-08 14:03:26 -04:00
nfs4renewd.c treewide: remove editor modelines and cruft 2021-05-07 00:26:34 -07:00
nfs4session.c treewide: Add SPDX license identifier for missed files 2019-05-21 10:50:45 +02:00
nfs4session.h NFSv4.1: use BITS_PER_LONG macro in nfs4session.h 2020-12-14 06:51:07 -05:00
nfs4state.c NFS client updates for Linux 5.13 2021-05-07 11:23:41 -07:00
nfs4super.c NFS: Adjust fs_context error logging 2021-01-10 13:32:39 -05:00
nfs4sysctl.c
nfs4trace.c pNFS/flexfiles: Add tracing for layout errors 2020-01-15 10:54:33 -05:00
nfs4trace.h treewide: Add missing semicolons to __assign_str uses 2021-06-30 09:19:14 -04:00
nfs4xdr.c NFS client updates for Linux 5.13 2021-05-07 11:23:41 -07:00
nfs42.h NFSv4.2: add the extended attribute proc functions. 2020-07-13 17:52:45 -04:00
nfs42proc.c NFSv42: Don't force attribute revalidation of the copy offload source 2021-04-14 10:42:24 -04:00
nfs42xattr.c nfs: Fix a typo in the file nfs42xattr.c 2021-04-05 09:04:20 -04:00
nfs42xdr.c NFS client updates for Linux 5.11 2020-12-17 12:15:03 -08:00
nfs.h
nfsroot.c nfsroot: Default mount option should ask for built-in NFS version 2020-11-02 10:29:03 -05:00
nfstrace.c NFSv4: Catch and trace server filehandle encoding errors 2021-04-14 09:36:29 -04:00
nfstrace.h Merge branch 'work.namei' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2021-07-03 11:41:14 -07:00
pagelist.c NFSv4.1 identify and mark RPC tasks that can move between transports 2021-07-08 14:03:24 -04:00
pnfs_dev.c NFSv4/pnfs: Add tracing for the deviceid cache 2020-12-16 17:25:24 -05:00
pnfs_nfs.c NFSv4/pNFS: Return an error if _nfs4_pnfs_v3_ds_connect can't load NFSv3 2021-07-08 14:03:26 -04:00
pnfs.c NFSv4/pnfs: Clean up layout get on open 2021-07-08 14:03:26 -04:00
pnfs.h pNFS: We want return-on-close to complete when evicting the inode 2021-01-10 13:32:51 -05:00
proc.c NFSv4: Add support for the NFSv4.2 "change_attr_type" attribute 2021-04-13 10:04:05 -04:00
read.c NFS: Fix fscache read from NFS after cache error 2021-07-08 14:03:26 -04:00
super.c nfs: Remove trailing semicolon in macros 2021-05-27 09:19:33 -04:00
symlink.c nfs: pass the correct prototype to read_cache_page 2019-05-09 16:26:57 -04:00
sysctl.c
sysfs.c NFSv4: Fix up RCU annotations for struct nfs_netns_client 2020-10-15 13:31:08 -04:00
sysfs.h NFSv4: Fix up RCU annotations for struct nfs_netns_client 2020-10-15 13:31:08 -04:00
unlink.c NFS: Fix open coded versions of nfs_set_cache_invalid() 2021-03-08 16:13:55 -05:00
write.c NFSv4.1 identify and mark RPC tasks that can move between transports 2021-07-08 14:03:24 -04:00