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NFSv4: Add a capability for delegated attributes

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Cache whether or not the server may have support for delegated
attributes in a capability flag.

Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
Signed-off-by: Lance Shelton <lance.shelton@hammerspace.com>
Reviewed-by: Jeff Layton <jlayton@kernel.org>
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
This commit is contained in:
Trond Myklebust 2024-06-16 21:21:27 -04:00 committed by Anna Schumaker
parent 86e1c54d15
commit dcb3c20f74
2 changed files with 3 additions and 0 deletions
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2
fs/nfs/nfs4proc.c
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@ -3930,6 +3930,8 @@ static int _nfs4_server_capabilities(struct nfs_server *server, struct nfs_fh *f
#endif
if (res.attr_bitmask[0] & FATTR4_WORD0_FS_LOCATIONS)
server->caps |= NFS_CAP_FS_LOCATIONS;
if (res.attr_bitmask[2] & FATTR4_WORD2_TIME_DELEG_MODIFY)
server->caps |= NFS_CAP_DELEGTIME;
if (!(res.attr_bitmask[0] & FATTR4_WORD0_FILEID))
server->fattr_valid &= ~NFS_ATTR_FATTR_FILEID;
if (!(res.attr_bitmask[1] & FATTR4_WORD1_MODE))

1
include/linux/nfs_fs_sb.h
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@ -278,6 +278,7 @@ struct nfs_server {
#define NFS_CAP_LGOPEN (1U << 5)
#define NFS_CAP_CASE_INSENSITIVE (1U << 6)
#define NFS_CAP_CASE_PRESERVING (1U << 7)
#define NFS_CAP_DELEGTIME (1U << 13)
#define NFS_CAP_POSIX_LOCK (1U << 14)
#define NFS_CAP_UIDGID_NOMAP (1U << 15)
#define NFS_CAP_STATEID_NFSV41 (1U << 16)