kernel.git/fs/nfs/filelayout, branch linux-6.10.y

pNFS: rework pnfs_generic_pg_check_layout to check IO range

2024-05-21T12:34:15Z

All callers of pnfs_generic_pg_check_layout() also want to do a call to check that the layout's range covers the IO range. Merge the functionality of the pnfs_generic_pg_check_range() into that of pnfs_generic_pg_check_layout(). Signed-off-by: Olga Kornievskaia Reviewed-by: Benjamin Coddington Signed-off-by: Trond Myklebust

pNFS/filelayout: check layout segment range

2024-05-21T12:34:15Z

Before doing the IO, check that we have the layout covering the range of IO. Signed-off-by: Olga Kornievskaia Reviewed-by: Benjamin Coddington Signed-off-by: Trond Myklebust

pNFS/filelayout: fixup pNfs allocation modes

2024-05-21T12:34:15Z

Change left over allocation flags. Fixes: a245832aaa99 ("pNFS/files: Ensure pNFS allocation modes are consistent with nfsiod") Signed-off-by: Olga Kornievskaia Reviewed-by: Benjamin Coddington Signed-off-by: Trond Myklebust

pNFS/filelayout: Specify the layout segment range in LAYOUTGET

2024-05-20T15:06:18Z

Move from only requesting full file layout segments to requesting layout segments that match our I/O size. This means the server is still free to return a full file layout if it wants, but partial layouts will no longer cause an error. Signed-off-by: Anna Schumaker Signed-off-by: Trond Myklebust

pNFS/filelayout: Remove the whole file layout requirement

2024-05-20T15:06:04Z

Layout segments have been supported in pNFS for years, so remove the requirement that the server always sends whole file layouts. Signed-off-by: Anna Schumaker Signed-off-by: Trond Myklebust

pnfs/filelayout: add tracepoint to getdeviceinfo

2024-02-28T21:18:19Z

While decoding filelayout getdeviceinfo received, print out the information about the location of data servers (IPs). Generic getdeviceinfo tracepoints prints the MDS's ip for the dstaddr. In this patch, separate the MDS's address from the DS's addresses. Signed-off-by: Olga Kornievskaia Signed-off-by: Trond Myklebust

nfs41: Annotate struct nfs4_file_layout_dsaddr with __counted_by

2023-10-02T16:48:53Z

Prepare for the coming implementation by GCC and Clang of the __counted_by attribute. Flexible array members annotated with __counted_by can have their accesses bounds-checked at run-time checking via CONFIG_UBSAN_BOUNDS (for array indexing) and CONFIG_FORTIFY_SOURCE (for strcpy/memcpy-family functions). As found with Coccinelle[1], add __counted_by for struct nfs4_file_layout_dsaddr. [1] https://github.com/kees/kernel-tools/blob/trunk/coccinelle/examples/counted_by.cocci Cc: Trond Myklebust Cc: Anna Schumaker Cc: "Gustavo A. R. Silva" Cc: linux-nfs@vger.kernel.org Link: https://lore.kernel.org/r/20230915201427.never.771-kees@kernel.org Signed-off-by: Kees Cook

pNFS/filelayout: treat GETDEVICEINFO errors as layout failure

2023-02-15T16:07:54Z

When GETDEVICEINFO call fails, return the layout and fall back to MDS. Signed-off-by: Olga Kornievskaia Signed-off-by: Anna Schumaker

pNFS/filelayout: Fix coalescing test for single DS

2022-12-20T17:52:39Z

When there is a single DS no striping constraints need to be placed on the IO. When such constraint is applied then buffered reads don't coalesce to the DS's rsize. Signed-off-by: Olga Kornievskaia Signed-off-by: Trond Myklebust

pNFS/files: Handle RDMA connection errors correctly

2022-07-10T23:00:53Z

The RPC/RDMA driver will return -EPROTO and -ENODEV as connection errors under certain circumstances. Make sure that we handle them correctly and avoid cycling forever in a LAYOUTGET/LAYOUTRETURN loop. Signed-off-by: Trond Myklebust