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path: root/fs/nfsd/debugfs.c
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2025-05-11NFSD: Add experimental setting to disable the use of splice readChuck Lever
NFSD currently has two separate code paths for handling read requests. One uses page splicing; the other is a traditional read based on an iov iterator. Because most Linux file systems support splice read, the latter does not get nearly the same test experience as splice reads. To force the use of vectored reads for testing and benchmarking, introduce the ability to disable splice reads for all NFS READ operations. Reviewed-by: Jeff Layton <jlayton@kernel.org> Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
2025-05-11NFSD: Add /sys/kernel/debug/nfsdChuck Lever
Create a small sandbox under /sys/kernel/debug for experimental NFS server feature settings. There is no API/ABI compatibility guarantee for these settings. The only documentation for such settings, if any documentation exists, is in the kernel source code. Reviewed-by: Jeff Layton <jlayton@kernel.org> Signed-off-by: Chuck Lever <chuck.lever@oracle.com>