kernel/linux.git/include/linux/nfs_xdr.h, branch v5.15.209

NFSv4: Add some support for case insensitive filesystems

2026-01-19T12:09:37+00:00

[ Upstream commit 1ab5be4ac5b1c9ce39ce1037c45b68d2ce6eede0 ] Add capabilities to allow the NFS client to recognise when it is dealing with case insensitive and case preserving filesystems. Signed-off-by: Trond Myklebust Signed-off-by: Anna Schumaker Stable-dep-of: 518c32a1bc4f ("NFS: Initialise verifiers for visible dentries in nfs_atomic_open()") Signed-off-by: Sasha Levin

NFSv4: keep state manager thread active if swap is enabled

2023-03-10T08:39:30+00:00

[ Upstream commit 4dc73c679114a2f408567e2e44770ed934190db2 ] If we are swapping over NFSv4, we may not be able to allocate memory to start the state-manager thread at the time when we need it. So keep it always running when swap is enabled, and just signal it to start. This requires updating and testing the cl_swapper count on the root rpc_clnt after following all ->cl_parent links. Signed-off-by: NeilBrown Signed-off-by: Trond Myklebust Stable-dep-of: b46d80bd2d6e ("nfs4trace: fix state manager flag printing") Signed-off-by: Sasha Levin

NFSv4: Fix free of uninitialized nfs4_label on referral lookup.

2022-11-03T14:59:10+00:00

commit c3ed222745d9ad7b69299b349a64ba533c64a34f upstream. Send along the already-allocated fattr along with nfs4_fs_locations, and drop the memcpy of fattr. We end up growing two more allocations, but this fixes up a crash as: PID: 790 TASK: ffff88811b43c000 CPU: 0 COMMAND: "ls" #0 [ffffc90000857920] panic at ffffffff81b9bfde #1 [ffffc900008579c0] do_trap at ffffffff81023a9b #2 [ffffc90000857a10] do_error_trap at ffffffff81023b78 #3 [ffffc90000857a58] exc_stack_segment at ffffffff81be1f45 #4 [ffffc90000857a80] asm_exc_stack_segment at ffffffff81c009de #5 [ffffc90000857b08] nfs_lookup at ffffffffa0302322 [nfs] #6 [ffffc90000857b70] __lookup_slow at ffffffff813a4a5f #7 [ffffc90000857c60] walk_component at ffffffff813a86c4 #8 [ffffc90000857cb8] path_lookupat at ffffffff813a9553 #9 [ffffc90000857cf0] filename_lookup at ffffffff813ab86b Suggested-by: Trond Myklebust Fixes: 9558a007dbc3 ("NFS: Remove the label from the nfs4_lookup_res struct") Signed-off-by: Benjamin Coddington Signed-off-by: Anna Schumaker Signed-off-by: Greg Kroah-Hartman

NFSv4.1 query for fs_location attr on a new file system

2022-02-16T11:56:09+00:00

[ Upstream commit 1976b2b31462151403c9fc110204fcc2a77bdfd1 ] Query the server for other possible trunkable locations for a given file system on a 4.1+ mount. v2: -- added missing static to nfs4_discover_trunking, reported by the kernel test robot Signed-off-by: Olga Kornievskaia Signed-off-by: Anna Schumaker Signed-off-by: Sasha Levin

NFSv4/pnfs: Clean up layout get on open

2021-07-08T18:03:26+00:00

Cache the layout in the arguments so we don't have to keep looking it up from the inode. Signed-off-by: Trond Myklebust

NFSv4: Add support for the NFSv4.2 "change_attr_type" attribute

2021-04-13T14:04:05+00:00

The change_attr_type allows the server to provide a description of how the change attribute will behave. This again will allow the client to optimise its behaviour w.r.t. attribute revalidation. Signed-off-by: Trond Myklebust

NFS: nfs4_bitmask_adjust() must not change the server global bitmasks

2021-04-12T21:14:17+00:00

As currently set, the calls to nfs4_bitmask_adjust() will end up overwriting the contents of the nfs_server cache_consistency_bitmask field. The intention here should be to modify a private copy of that mask in the close/delegreturn/write arguments. Fixes: 76bd5c016ef4 ("NFSv4: make cache consistency bitmask dynamic") Signed-off-by: Trond Myklebust

NFS: Allow the NFS generic code to pass in a verifier to readdir

2020-12-02T19:05:52+00:00

If we're ever going to allow support for servers that use the readdir verifier, then that use needs to be managed by the middle layers as those need to be able to reject cookies from other verifiers. Signed-off-by: Trond Myklebust Reviewed-by: Benjamin Coddington Tested-by: Benjamin Coddington Tested-by: Dave Wysochanski

NFS: Add READ_PLUS data segment support

2020-10-07T18:28:39+00:00

This patch adds client support for decoding a single NFS4_CONTENT_DATA segment returned by the server. This is the simplest implementation possible, since it does not account for any hole segments in the reply. Signed-off-by: Anna Schumaker

NFSv4: make cache consistency bitmask dynamic

2020-09-24T14:42:49+00:00

Client uses static bitmask for GETATTR on CLOSE/WRITE/DELEGRETURN and ignores the fact that it might have some attributes marked invalid in its cache. Compared to v3 where all attributes are retrieved in postop attributes, v4's cache is frequently out of sync and leads to standalone GETATTRs being sent to the server. Instead, in addition to the minimum cache consistency attributes also check cache_validity and adjust the GETATTR request accordingly. Signed-off-by: Olga Kornievskaia Signed-off-by: Anna Schumaker