v1 is here: https://www.spinics.net/lists/linux-nfs/msg76740.html v2: * Move nfs4 specific definitions to nfs_fs4.h * Squash some patches together to avoid unused function warnings when bisecting. * Made determining server support a two-step process. First, the extended attribute FATTR is verified to be supported, then the value of the attributed is queried in fsinfo to determine support. * Fixed up Makefile to remove an unneeded extra line. This was tested as before (using my own stress tests), but also with xfstests-dev. No issues were found, but xfstests needs some fixes to correctly run the applicable xattr tests on NFS. I have those changes, but need to send them out. I also tested stress-ng-xattr with 1000 workers on the client side, running for 8 hours without problems (except for noting that the session tbl_lock can become quite hot when doing NFS operations by 1000 threads, but that's a separate issue). Frank van der Linden (13): nfs,nfsd: NFSv4.2 extended attribute protocol definitions nfs: add client side only definitions for user xattrs NFSv4.2: define limits and sizes for user xattr handling NFSv4.2: query the server for extended attribute support NFSv4.2: add client side XDR handling for extended attributes nfs: define nfs_access_get_cached function NFSv4.2: query the extended attribute access bits nfs: modify update_changeattr to deal with regular files nfs: define and use the NFS_INO_INVALID_XATTR flag nfs: make the buf_to_pages_noslab function available to the nfs code NFSv4.2: add the extended attribute proc functions. NFSv4.2: hook in the user extended attribute handlers NFSv4.2: add client side xattr caching. fs/nfs/Makefile | 2 +- fs/nfs/client.c | 22 +- fs/nfs/dir.c | 24 +- fs/nfs/inode.c | 16 +- fs/nfs/nfs42.h | 24 + fs/nfs/nfs42proc.c | 248 ++++++++ fs/nfs/nfs42xattr.c | 1083 +++++++++++++++++++++++++++++++++++ fs/nfs/nfs42xdr.c | 438 ++++++++++++++ fs/nfs/nfs4_fs.h | 35 ++ fs/nfs/nfs4client.c | 31 + fs/nfs/nfs4proc.c | 237 +++++++- fs/nfs/nfs4super.c | 10 + fs/nfs/nfs4xdr.c | 31 + fs/nfs/nfstrace.h | 3 +- include/linux/nfs4.h | 25 + include/linux/nfs_fs.h | 12 + include/linux/nfs_fs_sb.h | 6 + include/linux/nfs_xdr.h | 60 +- include/uapi/linux/nfs4.h | 3 + include/uapi/linux/nfs_fs.h | 1 + 20 files changed, 2269 insertions(+), 42 deletions(-) create mode 100644 fs/nfs/nfs42xattr.c -- 2.17.2
