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12 daysNFSD: Remove NFSERR_EAGAINChuck Lever1-2/+0
I haven't found an NFSERR_EAGAIN in RFCs 1094, 1813, 7530, or 8881. None of these RFCs have an NFS status code that match the numeric value "11". Based on the meaning of the EAGAIN errno, I presume the use of this status in NFSD means NFS4ERR_DELAY. So replace the one usage of nfserr_eagain, and remove it from NFSD's NFS status conversion tables. As far as I can tell, NFSERR_EAGAIN has existed since the pre-git era, but was not actually used by any code until commit f4e44b393389 ("NFSD: delay unmount source's export after inter-server copy completed."), at which time it become possible for NFSD to return a status code of 11 (which is not valid NFS protocol). Fixes: f4e44b393389 ("NFSD: delay unmount source's export after inter-server copy completed.") Cc: stable@vger.kernel.org Reviewed-by: NeilBrown <neil@brown.name> Reviewed-by: Jeff Layton <jlayton@kernel.org> Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
2025-09-30NFSD: filecache: add STATX_DIOALIGN and STATX_DIO_READ_ALIGN supportMike Snitzer1-0/+22
Use STATX_DIOALIGN and STATX_DIO_READ_ALIGN to get DIO alignment attributes from the underlying filesystem and store them in the associated nfsd_file. This is done when the nfsd_file is first opened for each regular file. Signed-off-by: Mike Snitzer <snitzer@kernel.org> Reviewed-by: Jeff Layton <jlayton@kernel.org> Reviewed-by: NeilBrown <neil@brown.name> Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Acked-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: Anna Schumaker <anna.schumaker@oracle.com>
2025-05-11nfsd: add a tracepoint for nfsd_setattrJeff Layton1-0/+21
Turn Sargun's internal kprobe based implementation of this into a normal static tracepoint. Also, remove the dprintk's that got added recently with the fix for zero-length ACLs. Cc: Sargun Dillon <sargun@sargun.me> Signed-off-by: Jeff Layton <jlayton@kernel.org> Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
2024-09-01NFS: trace: show TIMEDOUT instead of 0x6eChen Hanxiao1-0/+1
__nfs_revalidate_inode may return ETIMEDOUT. print symbol of ETIMEDOUT in nfs trace: before: cat-5191 [005] 119.331127: nfs_revalidate_inode_exit: error=-110 (0x6e) after: cat-1738 [004] 44.365509: nfs_revalidate_inode_exit: error=-110 (TIMEDOUT) Signed-off-by: Chen Hanxiao <chenhx.fnst@fujitsu.com> Reviewed-by: Jeff Layton <jlayton@kernel.org> Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
2024-05-06NFS/knfsd: Remove the invalid NFS error 'NFSERR_OPNOTSUPP'Trond Myklebust1-2/+0
NFSERR_OPNOTSUPP is not described by any RFC, and should not be used. Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com> Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
2024-03-16Merge tag 'nfs-for-6.9-1' of git://git.linux-nfs.org/projects/trondmy/linux-nfsLinus Torvalds1-0/+1
Pull NFS client updates from Trond Myklebust: "Highlights include: Bugfixes: - Fix for an Oops in the NFSv4.2 listxattr handler - Correct an incorrect buffer size in listxattr - Fix for an Oops in the pNFS flexfiles layout - Fix a refcount leak in NFS O_DIRECT writes - Fix missing locking in NFS O_DIRECT - Avoid an infinite loop in pnfs_update_layout - Fix an overflow in the RPC waitqueue queue length counter - Ensure that pNFS I/O is also protected by TLS when xprtsec is specified by the mount options - Fix a leaked folio lock in the netfs read code - Fix a potential deadlock in fscache - Allow setting the fscache uniquifier in NFSv4 - Fix an off by one in root_nfs_cat() - Fix another off by one in rpc_sockaddr2uaddr() - nfs4_do_open() can incorrectly trigger state recovery - Various fixes for connection shutdown Features and cleanups: - Ensure that containers only see their own RPC and NFS stats - Enable nconnect for RDMA - Remove dead code from nfs_writepage_locked() - Various tracepoint additions to track EXCHANGE_ID, GETDEVICEINFO, and mount options" * tag 'nfs-for-6.9-1' of git://git.linux-nfs.org/projects/trondmy/linux-nfs: (29 commits) nfs: fix panic when nfs4_ff_layout_prepare_ds() fails NFS: trace the uniquifier of fscache NFS: Read unlock folio on nfs_page_create_from_folio() error NFS: remove unused variable nfs_rpcstat nfs: fix UAF in direct writes nfs: properly protect nfs_direct_req fields NFS: enable nconnect for RDMA NFSv4: nfs4_do_open() is incorrectly triggering state recovery NFS: avoid infinite loop in pnfs_update_layout. NFS: remove sync_mode test from nfs_writepage_locked() NFSv4.1/pnfs: fix NFS with TLS in pnfs NFS: Fix an off by one in root_nfs_cat() nfs: make the rpc_stat per net namespace nfs: expose /proc/net/sunrpc/nfs in net namespaces sunrpc: add a struct rpc_stats arg to rpc_create_args nfs: remove unused NFS_CALL macro NFSv4.1: add tracepoint to trunked nfs4_exchange_id calls NFS: Fix nfs_netfs_issue_read() xarray locking for writeback interrupt SUNRPC: increase size of rpc_wait_queue.qlen from unsigned short to unsigned int nfs: fix regression in handling of fsc= option in NFSv4 ...
2024-03-09NFSv4.1: add tracepoint to trunked nfs4_exchange_id callsOlga Kornievskaia1-0/+1
Add a tracepoint to track when the client sends EXCHANGE_ID to test a new transport for session trunking. nfs4_detect_session_trunking() tests for trunking and returns EINVAL if trunking can't be done, add EINVAL mapping to show_nfs4_status() in tracepoints. Signed-off-by: Olga Kornievskaia <kolga@netapp.com> Reviewed-by: Benjamin Coddington <bcodding@redhat.com> Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2024-03-01NFSD: Add callback operation lifetime trace pointsChuck Lever1-0/+34
Help observe the flow of callback operations. bc_shutdown() records exactly when the backchannel RPC client is destroyed and cl_cb_client is replaced with NULL. Examples include: nfsd-955 [004] 650.013997: nfsd_cb_queue: addr=192.168.122.6:0 client 65b3c5b8:f541f749 cb=0xffff8881134b02f8 (first try) kworker/u21:4-497 [004] 650.014050: nfsd_cb_seq_status: task:00000001@00000001 sessionid=65b3c5b8:f541f749:00000001:00000000 tk_status=-107 seq_status=1 kworker/u21:4-497 [004] 650.014051: nfsd_cb_restart: addr=192.168.122.6:0 client 65b3c5b8:f541f749 cb=0xffff88810e39f400 (first try) kworker/u21:4-497 [004] 650.014066: nfsd_cb_queue: addr=192.168.122.6:0 client 65b3c5b8:f541f749 cb=0xffff88810e39f400 (need restart) kworker/u16:0-10 [006] 650.065750: nfsd_cb_start: addr=192.168.122.6:0 client 65b3c5b8:f541f749 state=UNKNOWN kworker/u16:0-10 [006] 650.065752: nfsd_cb_bc_update: addr=192.168.122.6:0 client 65b3c5b8:f541f749 cb=0xffff8881134b02f8 (first try) kworker/u16:0-10 [006] 650.065754: nfsd_cb_bc_shutdown: addr=192.168.122.6:0 client 65b3c5b8:f541f749 cb=0xffff8881134b02f8 (first try) kworker/u16:0-10 [006] 650.065810: nfsd_cb_new_state: addr=192.168.122.6:0 client 65b3c5b8:f541f749 state=DOWN Reviewed-by: Jeff Layton <jlayton@kernel.org> Reviewed-by: Benjamin Coddington <bcodding@redhat.com> Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
2022-12-10NFSD: add CB_RECALL_ANY tracepointsDai Ngo1-0/+12
Add tracepoints to trace start and end of CB_RECALL_ANY operation. Signed-off-by: Dai Ngo <dai.ngo@oracle.com> [ cel: added show_rca_mask() macro ] Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
2022-12-10trace: Relocate event helper filesChuck Lever4-0/+683
Steven Rostedt says: > The include/trace/events/ directory should only hold files that > are to create events, not headers that hold helper functions. > > Can you please move them out of include/trace/events/ as that > directory is "special" in the creation of events. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Acked-by: Leon Romanovsky <leonro@nvidia.com> Acked-by: Steven Rostedt (Google) <rostedt@goodmis.org> Acked-by: Anna Schumaker <Anna.Schumaker@Netapp.com>