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efea5d558e
android_kernel_xiaomi_sm8450/fs/nfs
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J. Bruce Fields efea5d558e nfs: don't allow reexport reclaims 
[ Upstream commit bb0a55bb7148a49e549ee992200860e7a040d3a5 ]

In the reexport case, nfsd is currently passing along locks with the
reclaim bit set.  The client sends a new lock request, which is granted
if there's currently no conflict--even if it's possible a conflicting
lock could have been briefly held in the interim.

We don't currently have any way to safely grant reclaim, so for now
let's just deny them all.

I'm doing this by passing the reclaim bit to nfs and letting it fail the
call, with the idea that eventually the client might be able to do
something more forgiving here.

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>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-06-21 14:53:19 +02:00
..
blocklayout SUNRPC: Add xdr_set_scratch_page() and xdr_reset_scratch_buffer() 2024-06-21 14:52:33 +02:00
filelayout SUNRPC: Add xdr_set_scratch_page() and xdr_reset_scratch_buffer() 2024-06-21 14:52:33 +02:00
flexfilelayout SUNRPC: Add xdr_set_scratch_page() and xdr_reset_scratch_buffer() 2024-06-21 14:52:33 +02:00
cache_lib.c NFS client updates for Linux 4.15 2017-11-17 14:18:00 -08:00
cache_lib.h NFS client updates for Linux 4.15 2017-11-17 14:18:00 -08:00
callback_proc.c pNFS: Avoid a live lock condition in pnfs_update_layout() 2022-06-22 14:13:16 +02:00
callback_xdr.c SUNRPC: Make trace_svc_process() display the RPC procedure symbolically 2024-06-21 14:52:50 +02:00
callback.c SUNRPC: Cache the process user cred in the RPC server listener 2019-04-24 09:46:35 -04:00
callback.h NFSv4.1: Fix uninitialised variable in devicenotify 2022-02-16 12:54:18 +01:00
client.c nfs: make the rpc_stat per net namespace 2024-05-17 11:47:59 +02:00
delegation.c NFSv4: Fix a potential state reclaim deadlock 2022-11-10 18:14:16 +01:00
delegation.h NFSv4: Fix delegation return in cases where we have to retry 2021-07-20 16:05:47 +02:00
dir.c SUNRPC: Add xdr_set_scratch_page() and xdr_reset_scratch_buffer() 2024-06-21 14:52:33 +02:00
direct.c nfs: fix UAF in direct writes 2024-04-13 12:58:31 +02:00
dns_resolve.c NFS: remove duplicate headers 2020-05-27 10:10:12 -04:00
dns_resolve.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 nfs: don't atempt blocking locks on nfs reexports 2024-06-21 14:53:19 +02:00
file.c nfs: don't allow reexport reclaims 2024-06-21 14:53:19 +02:00
fs_context.c nfs: fix broken handling of the softreval mount option 2022-05-18 10:23:43 +02:00
fscache-index.c nfs: fscache: use timespec64 in inode auxdata 2020-01-15 10:54:30 -05:00
fscache.c NFSv4: Fix fscache cookie aux_data to ensure change_attr is included 2020-05-08 22:20:24 +01:00
fscache.h nfs: fscache: use timespec64 in inode auxdata 2020-01-15 10:54:30 -05:00
getroot.c NFS: Ensure security label is set for root inode 2020-03-30 19:56:50 -04:00
inode.c nfs: Handle error of rpc_proc_register() in nfs_net_init(). 2024-05-17 11:47:59 +02:00
internal.h nfs: fix undefined behavior in nfs_block_bits() 2024-06-16 13:32:36 +02:00
io.c NFS: Fix up documentation warnings 2019-02-20 15:14:21 -05:00
iostat.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
Kconfig nfs: fix PNFS_FLEXFILE_LAYOUT Kconfig default 2021-03-30 14:31:49 +02:00
Makefile NFSv4.2: add client side xattr caching. 2020-07-13 17:52:46 -04:00
mount_clnt.c NFSv3: fix rpc receive buffer size for MOUNT call 2020-05-14 18:42:44 -04:00
namespace.c NFS: Fix an Oops in nfs_d_automount() 2023-01-14 10:15:34 +01:00
netns.h nfs: make the rpc_stat per net namespace 2024-05-17 11:47:59 +02:00
nfs2super.c treewide: Add SPDX license identifier for more missed files 2019-05-21 10:50:45 +02:00
nfs2xdr.c NFS: Guard against READDIR loop when entry names exceed MAXNAMELEN 2023-09-19 12:20:15 +02:00
nfs3_fs.h NFS: Additional refactoring for fs_context conversion 2020-01-15 10:15:17 -05:00
nfs3acl.c treewide: Use fallthrough pseudo-keyword 2020-08-23 17:36:59 -05:00
nfs3client.c Revert "pNFS: nfs3_set_ds_client should set NFS_CS_NOPING" 2022-08-21 15:15:18 +02:00
nfs3proc.c nfs: fix acl memory leak of posix_acl_create() 2021-07-20 16:05:51 +02:00
nfs3super.c treewide: Add SPDX license identifier for more missed files 2019-05-21 10:50:45 +02:00
nfs3xdr.c NFS: Guard against READDIR loop when entry names exceed MAXNAMELEN 2023-09-19 12:20:15 +02:00
nfs4_fs.h NFSv4: keep state manager thread active if swap is enabled 2023-03-11 16:39:38 +01:00
nfs4client.c nfs4: Fix kmemleak when allocate slot failed 2022-11-10 18:14:16 +01:00
nfs4file.c NFSv4.2: Remove ifdef CONFIG_NFSD from NFSv4.2 client SSC code. 2024-06-21 14:53:08 +02:00
nfs4getroot.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
nfs4idmap.c NFSv4: Fix races in the legacy idmapper upcall 2022-08-25 11:37:54 +02:00
nfs4idmap.h NFS: Move nfs_idmap.h into fs/nfs/ 2015-04-23 15:16:14 -04:00
nfs4namespace.c NFSv4 handle port presence in fs_location server string 2022-02-16 12:54:18 +01:00
nfs4proc.c NFS: Fix READ_PLUS when server doesn't support OP_READ_PLUS 2024-06-16 13:32:36 +02:00
nfs4renewd.c NFSv4.0: nfs4_do_fsinfo() should not do implicit lease renewals 2020-02-04 12:27:55 -05:00
nfs4session.c treewide: Add SPDX license identifier for missed files 2019-05-21 10:50:45 +02:00
nfs4session.h NFSv4.1: Bump the default callback session slot count to 16 2019-03-02 16:25:26 -05:00
nfs4state.c NFSv4: Fix a nfs4_state_manager() race 2023-10-10 21:53:38 +02:00
nfs4super.c NFS: Adjust fs_context error logging 2021-01-19 18:27:30 +01:00
nfs4sysctl.c nfs: Do not convert nfs_idmap_cache_timeout to jiffies 2018-01-18 15:10:47 -05:00
nfs4trace.c pNFS/flexfiles: Add tracing for layout errors 2020-01-15 10:54:33 -05:00
nfs4trace.h nfs4trace: fix state manager flag printing 2023-03-11 16:39:38 +01:00
nfs4xdr.c SUNRPC: Add xdr_set_scratch_page() and xdr_reset_scratch_buffer() 2024-06-21 14:52:33 +02:00
nfs42.h NFSv4.2: fix listxattr maximum XDR buffer size 2024-03-26 18:22:01 -04:00
nfs42proc.c NFSv4.2: fix handling of COPY ERR_OFFLOAD_NO_REQ 2023-09-19 12:20:16 +02:00
nfs42xattr.c NFSv4.2: fix failure to unregister shrinker 2020-11-12 10:40:02 -05:00
nfs42xdr.c SUNRPC: Add xdr_set_scratch_page() and xdr_reset_scratch_buffer() 2024-06-21 14:52:33 +02:00
nfs.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
nfsroot.c NFS: Fix an off by one in root_nfs_cat() 2024-03-26 18:22:01 -04:00
nfstrace.c NFS: Add trace events to report non-zero NFS status codes 2019-02-13 12:03:21 -05:00
nfstrace.h nfs: define and use the NFS_INO_INVALID_XATTR flag 2020-07-13 17:52:45 -04:00
pagelist.c NFS: Avoid writeback threads getting stuck in mempool_alloc() 2022-04-13 21:01:03 +02:00
pnfs_dev.c NFSv4/pnfs: minor fix for cleanup path in nfs4_get_device_info 2023-09-19 12:20:25 +02:00
pnfs_nfs.c NFS: nfsiod should not block forever in mempool_alloc() 2022-04-13 21:01:03 +02:00
pnfs.c pNFS: Fix a hang in nfs4_evict_inode() 2023-10-25 11:54:24 +02:00
pnfs.h pNFS: Avoid a live lock condition in pnfs_update_layout() 2022-06-22 14:13:16 +02:00
proc.c NFS: Add softreval behaviour to nfs_lookup_revalidate() 2020-01-24 16:51:13 -05:00
read.c NFS: Trace short NFS READs 2020-06-11 13:33:48 -04:00
super.c NFSv4.2: Remove ifdef CONFIG_NFSD from NFSv4.2 client SSC code. 2024-06-21 14:53:08 +02:00
symlink.c nfs: pass the correct prototype to read_cache_page 2019-05-09 16:26:57 -04:00
sysctl.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
sysfs.c NFS: rename nfs_client_kset to nfs_kset 2023-10-10 21:53:36 +02:00
sysfs.h NFSv4: Fix up RCU annotations for struct nfs_netns_client 2020-10-15 13:31:08 -04:00
unlink.c NFS: Avoid referencing the cred twice in async rename/unlink 2020-03-16 08:34:29 -04:00
write.c nfs: fix UAF in direct writes 2024-04-13 12:58:31 +02:00