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linux/fs/nfs
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Trond Myklebust 8217345dd5 NFSv4/flexfiles: Fix handling of NFS level errors in I/O 
[ Upstream commit 38074de35b ]

Allow the flexfiles error handling to recognise NFS level errors (as
opposed to RPC level errors) and handle them separately. The main
motivator is the NFSERR_PERM errors that get returned if the NFS client
connects to the data server through a port number that is lower than
1024. In that case, the client should disconnect and retry a READ on a
different data server, or it should retry a WRITE after reconnecting.

Reviewed-by: Tigran Mkrtchyan <tigran.mkrtchyan@desy.de>
Fixes: d67ae825a5 ("pnfs/flexfiles: Add the FlexFile Layout Driver")
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
Signed-off-by: Anna Schumaker <anna.schumaker@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
History 2025-07-10 15:59:51 +02:00
..
blocklayout pNFS: Fix the pnfs block driver's calculation of layoutget size 2024-01-25 15:27:23 -08:00
filelayout nfs: don't share pNFS DS connections between net namespaces 2025-06-04 14:40:25 +02:00
flexfilelayout NFSv4/flexfiles: Fix handling of NFS level errors in I/O 2025-07-10 15:59:51 +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.c nfsd: stop setting ->pg_stats for unused stats 2024-08-19 06:00:04 +02:00
callback.h NFSv4.1: Fix uninitialised variable in devicenotify 2022-01-06 14:00:20 -05:00
callback_proc.c pNFS: Avoid a live lock condition in pnfs_update_layout() 2022-06-06 11:53:55 -04:00
callback_xdr.c SUNRPC: Fix integer overflow in decode_rc_list() 2024-10-17 15:22:18 +02:00
client.c NFS: Avoid flushing data while holding directory locks in nfs_rename() 2025-06-04 14:40:26 +02:00
delegation.c NFSv4: Check for delegation validity in nfs_start_delegation_return_locked() 2025-06-04 14:40:02 +02:00
delegation.h NFSv4: Fix delegation return in cases where we have to retry 2021-06-13 19:36:27 -04:00
dir.c NFS: Avoid flushing data while holding directory locks in nfs_rename() 2025-06-04 14:40:26 +02:00
direct.c nfs: drop the incorrect assertion in nfs_swap_rw() 2024-07-05 09:31:52 +02:00
dns_resolve.c NFS: Avoid memcpy() run-time warning for struct sockaddr overflows 2022-10-27 15:52:10 -04:00
dns_resolve.h NFS: Avoid memcpy() run-time warning for struct sockaddr overflows 2022-10-27 15:52:10 -04:00
export.c nfsd: allow reaping files still under writeback 2024-03-26 18:20:23 -04:00
file.c NFS Client Updates for Linux 6.1 2022-10-13 09:58:42 -07:00
fs_context.c nfs: keep server info for remounts 2024-06-12 11:03:50 +02:00
fscache.c mm, netfs, fscache: stop read optimisation when folio removed from pagecache 2024-01-10 17:10:31 +01:00
fscache.h nfs: Convert to release_folio 2022-05-09 23:12:33 -04:00
getroot.c NFS: Remove the nfs4_label argument from nfs_setsecurity 2021-11-05 14:54:40 -04:00
inode.c nfs: Clean up /proc/net/rpc/nfs when nfs_fs_proc_net_init() fails. 2025-07-10 15:59:45 +02:00
internal.h NFS: Don't allow waiting for exiting tasks 2025-06-04 14:40:02 +02:00
io.c NFS: Fix up incorrect documentation 2021-04-05 09:04:20 -04:00
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: add missing selections of CONFIG_CRC32 2025-04-25 10:43:52 +02:00
Makefile nfs: Convert to new fscache volume/cookie API 2022-01-10 11:53:25 +00:00
mount_clnt.c NFS: Avoid memcpy() run-time warning for struct sockaddr overflows 2022-10-27 15:52:10 -04:00
namespace.c NFS: Fix an Oops in nfs_d_automount() 2022-12-31 13:32:18 +01:00
netns.h nfs: make the rpc_stat per net namespace 2024-05-17 11:55:54 +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
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 2023-09-13 09:42:49 +02:00
nfs3_fs.h vfs: add rcu argument to ->get_acl() callback 2021-08-18 22:08:24 +02:00
nfs3acl.c vfs: add rcu argument to ->get_acl() callback 2021-08-18 22:08:24 +02:00
nfs3client.c NFS: Avoid memcpy() run-time warning for struct sockaddr overflows 2022-10-27 15:52:10 -04:00
nfs3proc.c NFS: Don't allow waiting for exiting tasks 2025-06-04 14:40:02 +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 2023-09-13 09:42:49 +02:00
nfs4_fs.h NFS: Avoid memcpy() run-time warning for struct sockaddr overflows 2022-10-27 15:52:10 -04:00
nfs4client.c NFSv4.1 another fix for EXCHGID4_FLAG_USE_PNFS_DS for DS server 2024-08-03 08:49:16 +02:00
nfs4file.c NFSv4.2 fix problems with __nfs42_ssc_open 2022-08-19 20:31:57 -04:00
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 nfs: remove unnecessary (void*) conversions. 2022-10-03 11:26:36 -04:00
nfs4idmap.h NFS: Move nfs_idmap.h into fs/nfs/ 2015-04-23 15:16:14 -04:00
nfs4namespace.c NFS: Avoid memcpy() run-time warning for struct sockaddr overflows 2022-10-27 15:52:10 -04:00
nfs4proc.c NFSv4: xattr handlers should check for absent nfs filehandles 2025-07-06 10:57:54 +02:00
nfs4renewd.c treewide: remove editor modelines and cruft 2021-05-07 00:26:34 -07:00
nfs4session.c NFSv4: Sanity check the parameters in nfs41_update_target_slotid() 2021-11-07 09:23:14 -05:00
nfs4session.h nfs: add missing selections of CONFIG_CRC32 2025-04-25 10:43:52 +02:00
nfs4state.c NFSv4: Treat ENETUNREACH errors as fatal for state recovery 2025-06-04 14:40:03 +02:00
nfs4super.c NFS: Adjust fs_context error logging 2021-01-10 13:32:39 -05:00
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 trace: Relocate event helper files 2024-03-06 14:45:17 +00:00
nfs4xdr.c NFSv4.2: Fix a memory stomp in decode_attr_security_label 2022-12-31 13:32:18 +01:00
nfs42.h NFSv4.2: fix listxattr maximum XDR buffer size 2024-03-26 18:20:56 -04:00
nfs42proc.c NFSv4.2: mark OFFLOAD_CANCEL MOVEABLE 2025-02-21 13:49:20 +01:00
nfs42xattr.c NFSv4.2: fix wrong shrinker_id 2023-07-19 16:21:43 +02:00
nfs42xdr.c NFSv4.2: fix COPY_NOTIFY xdr buf size calculation 2025-02-21 13:49:20 +01:00
nfsroot.c NFS: Fix an off by one in root_nfs_cat() 2024-03-26 18:20:56 -04:00
nfstrace.c NFSv4: Catch and trace server filehandle encoding errors 2021-04-14 09:36:29 -04:00
nfstrace.h trace: Relocate event helper files 2024-03-06 14:45:17 +00:00
pagelist.c NFSv4.1 mark qualified async operations as MOVEABLE tasks 2022-05-31 17:09:30 -04:00
pnfs.c NFSv4/pNFS: Fix a race to wake on NFS_LAYOUT_DRAIN 2025-07-10 15:59:45 +02:00
pnfs.h nfs: don't share pNFS DS connections between net namespaces 2025-06-04 14:40:25 +02:00
pnfs_dev.c NFSv4/pnfs: minor fix for cleanup path in nfs4_get_device_info 2023-09-19 12:27:58 +02:00
pnfs_nfs.c nfs: don't share pNFS DS connections between net namespaces 2025-06-04 14:40:25 +02:00
proc.c NFS: NFSv2/v3 clients should never be setting NFS_CAP_XATTR 2022-02-25 18:50:13 -05:00
read.c NFSv4.2: Rework scratch handling for READ_PLUS (again) 2023-09-13 09:43:05 +02:00
super.c nfs: ignore SB_RDONLY when remounting nfs 2025-06-27 11:07:15 +01:00
symlink.c nfs: propagate readlink errors in nfs_symlink_filler 2024-07-25 09:49:11 +02:00
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 22:00:35 +02:00
sysfs.h NFSv4: Fix up RCU annotations for struct nfs_netns_client 2020-10-15 13:31:08 -04:00
unlink.c NFSv4.1 mark qualified async operations as MOVEABLE tasks 2022-05-31 17:09:30 -04:00
write.c nfs: fix UAF in direct writes 2024-04-03 15:19:34 +02:00