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android_kernel_xiaomi_sm8450/fs/nfsd
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Jeff Layton d0c46b55d6 nfsd: fix handling of readdir in v4root vs. mount upcall timeout 
commit cad853374d85fe678d721512cecfabd7636e51f3 upstream.

If v4 READDIR operation hits a mountpoint and gets back an error,
then it will include that entry in the reply and set RDATTR_ERROR for it
to the error.

That's fine for "normal" exported filesystems, but on the v4root, we
need to be more careful to only expose the existence of dentries that
lead to exports.

If the mountd upcall times out while checking to see whether a
mountpoint on the v4root is exported, then we have no recourse other
than to fail the whole operation.

Cc: Steve Dickson <steved@redhat.com>
Link: https://bugzilla.kernel.org/show_bug.cgi?id=216777
Reported-by: JianHong Yin <yin-jianhong@163.com>
Signed-off-by: Jeff Layton <jlayton@kernel.org>
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-01-14 10:16:49 +01:00
..
acl.h nfsd: eliminate an unnecessary acl size limit 2019-08-28 21:13:45 -04:00
auth.c nfsd: auth: Fix gid sorting when rootsquash enabled 2018-01-22 20:13:07 -08:00
auth.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
blocklayout.c block: add a bdev_is_partition helper 2020-09-25 08:18:57 -06:00
blocklayoutxdr.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
blocklayoutxdr.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
cache.h nfsd4: make drc_slab global, not per-net 2020-06-01 17:44:45 -04:00
current_stateid.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
export.c NFSD: Map nfserr_wrongsec outside of nfsd_dispatch 2020-10-02 09:37:42 -04:00
export.h knfsd: Allow lockless lookups of the exports 2018-10-29 16:58:04 -04:00
fault_inject.c nfsd: no need to check return value of debugfs_create functions 2019-07-03 16:57:17 +02:00
filecache.c nfsd: Replace use of rwsem with errseq_t 2022-06-22 14:13:12 +02:00
filecache.h nfsd: Replace use of rwsem with errseq_t 2022-06-22 14:13:12 +02:00
flexfilelayout.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
flexfilelayoutxdr.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
flexfilelayoutxdr.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
idmap.h nfsd: Remove duplicate define of IDMAP_NAMESZ/IDMAP_TYPE_xx 2015-07-20 14:58:46 -04:00
Kconfig fs: nfsd: fix kconfig dependency warning for NFSD_V4 2021-04-07 15:00:03 +02:00
lockd.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
Makefile nfsd: remove fault injection code 2020-09-25 18:01:26 -04:00
netns.h nfsd: netns.h: delete a duplicated word 2020-07-24 17:25:13 -04:00
nfs2acl.c NFSD: Hoist status code encoding into XDR encoder functions 2020-10-12 10:29:44 -04:00
nfs3acl.c NFSD: Hoist status code encoding into XDR encoder functions 2020-10-12 10:29:44 -04:00
nfs3proc.c NFSD: Clamp WRITE offsets 2022-02-16 12:54:17 +01:00
nfs3xdr.c nfsd4: readdirplus shouldn't return parent of export 2021-01-23 16:03:58 +01:00
nfs4acl.c nfsd: check permissions when setting ACLs 2016-06-24 12:11:52 -04:00
nfs4callback.c nfsd: under NFSv4.1, fix double svc_xprt_put on rpc_create failure 2023-01-14 10:16:09 +01:00
nfs4idmap.c nfsd: Use seq_putc() in two functions 2020-07-13 17:28:46 -04:00
nfs4layouts.c treewide: Use fallthrough pseudo-keyword 2020-08-23 17:36:59 -05:00
nfs4proc.c nfsd: Replace use of rwsem with errseq_t 2022-06-22 14:13:12 +02:00
nfs4recover.c nfsd: Fix a memory leak in an error handling path 2022-10-26 13:25:18 +02:00
nfs4state.c nfsd: don't call nfsd_file_put from client states seqfile display 2023-01-14 10:15:18 +01:00
nfs4xdr.c nfsd: fix handling of readdir in v4root vs. mount upcall timeout 2023-01-14 10:16:49 +01:00
nfscache.c silence nfscache allocation warnings with kvzalloc 2020-09-25 18:01:28 -04:00
nfsctl.c fsnotify: fix fsnotify hooks in pseudo filesystems 2022-02-01 17:25:39 +01:00
nfsd.h nfsd: add defines for NFSv4.2 extended attribute support 2020-07-13 17:27:03 -04:00
nfsfh.c treewide: Use fallthrough pseudo-keyword 2020-08-23 17:36:59 -05:00
nfsfh.h nfsd: handle nfs3 timestamps as unsigned 2019-12-19 17:46:08 -05:00
nfsproc.c NFSD: prevent underflow in nfssvc_decode_writeargs() 2022-04-08 14:39:51 +02:00
nfssvc.c nfsd: shut down the NFSv4 state objects before the filecache 2023-01-14 10:16:45 +01:00
nfsxdr.c NFSD: Hoist status code encoding into XDR encoder functions 2020-10-12 10:29:44 -04:00
pnfs.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
state.h nfsd: remove fault injection code 2020-09-25 18:01:26 -04:00
stats.c proc: convert everything to "struct proc_ops" 2020-02-04 03:05:26 +00:00
stats.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
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: Fix offset type in I/O trace points 2022-02-16 12:54:17 +01:00
vfs.c vfs: fix copy_file_range() averts filesystem freeze protection 2022-12-19 12:27:30 +01:00
vfs.h nfsd: define xattr functions to call into their vfs counterparts 2020-07-13 17:27:03 -04:00
xdr3.h NFSD: Encoder and decoder functions are always present 2020-10-02 09:37:41 -04:00
xdr4.h NFSD: Encoder and decoder functions are always present 2020-10-02 09:37:41 -04:00
xdr4cb.h NFSD CB_OFFLOAD xdr 2018-09-25 20:34:54 -04:00
xdr.h NFSD: prevent underflow in nfssvc_decode_writeargs() 2022-04-08 14:39:51 +02:00