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NFS: Split attribute support out from the server capabilities

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There are lots of attributes, and they are crowding out the bit space.

Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
This commit is contained in:
Trond Myklebust 2018-03-05 15:01:18 -05:00 committed by Trond Myklebust
parent cc7f2dae63
commit ce62b114bb
4 changed files with 70 additions and 56 deletions
repo.diff.show_diff_stats Download patch file Download diff file Expand all files Collapse all files

15
fs/nfs/client.c
View file

@ -696,9 +696,18 @@ static int nfs_init_server(struct nfs_server *server,
/* Initialise the client representation from the mount data */
server->flags = ctx->flags;
server->options = ctx->options;
server->caps |= NFS_CAP_HARDLINKS|NFS_CAP_SYMLINKS|NFS_CAP_FILEID|
NFS_CAP_MODE|NFS_CAP_NLINK|NFS_CAP_OWNER|NFS_CAP_OWNER_GROUP|
NFS_CAP_ATIME|NFS_CAP_CTIME|NFS_CAP_MTIME;
server->caps |= NFS_CAP_HARDLINKS | NFS_CAP_SYMLINKS;
switch (clp->rpc_ops->version) {
case 2:
server->fattr_valid = NFS_ATTR_FATTR_V2;
break;
case 3:
server->fattr_valid = NFS_ATTR_FATTR_V3;
break;
default:
server->fattr_valid = NFS_ATTR_FATTR_V4;
}
if (ctx->rsize)
server->rsize = nfs_block_size(ctx->rsize, NULL);

51
fs/nfs/inode.c
View file

@ -438,6 +438,7 @@ nfs_fhget(struct super_block *sb, struct nfs_fh *fh, struct nfs_fattr *fattr, st
.fattr = fattr
};
struct inode *inode = ERR_PTR(-ENOENT);
u64 fattr_supported = NFS_SB(sb)->fattr_valid;
unsigned long hash;
nfs_attr_check_mountpoint(sb, fattr);
@ -470,7 +471,7 @@ nfs_fhget(struct super_block *sb, struct nfs_fh *fh, struct nfs_fattr *fattr, st
inode->i_mode = fattr->mode;
nfsi->cache_validity = 0;
if ((fattr->valid & NFS_ATTR_FATTR_MODE) == 0
&& nfs_server_capable(inode, NFS_CAP_MODE))
&& (fattr_supported & NFS_ATTR_FATTR_MODE))
nfs_set_cache_invalid(inode, NFS_INO_INVALID_MODE);
/* Why so? Because we want revalidate for devices/FIFOs, and
* that's precisely what we have in nfs_file_inode_operations.
@ -516,15 +517,15 @@ nfs_fhget(struct super_block *sb, struct nfs_fh *fh, struct nfs_fattr *fattr, st
nfsi->attr_gencount = fattr->gencount;
if (fattr->valid & NFS_ATTR_FATTR_ATIME)
inode->i_atime = fattr->atime;
else if (nfs_server_capable(inode, NFS_CAP_ATIME))
else if (fattr_supported & NFS_ATTR_FATTR_ATIME)
nfs_set_cache_invalid(inode, NFS_INO_INVALID_ATIME);
if (fattr->valid & NFS_ATTR_FATTR_MTIME)
inode->i_mtime = fattr->mtime;
else if (nfs_server_capable(inode, NFS_CAP_MTIME))
else if (fattr_supported & NFS_ATTR_FATTR_MTIME)
nfs_set_cache_invalid(inode, NFS_INO_INVALID_MTIME);
if (fattr->valid & NFS_ATTR_FATTR_CTIME)
inode->i_ctime = fattr->ctime;
else if (nfs_server_capable(inode, NFS_CAP_CTIME))
else if (fattr_supported & NFS_ATTR_FATTR_CTIME)
nfs_set_cache_invalid(inode, NFS_INO_INVALID_CTIME);
if (fattr->valid & NFS_ATTR_FATTR_CHANGE)
inode_set_iversion_raw(inode, fattr->change_attr);
@ -536,26 +537,30 @@ nfs_fhget(struct super_block *sb, struct nfs_fh *fh, struct nfs_fattr *fattr, st
nfs_set_cache_invalid(inode, NFS_INO_INVALID_SIZE);
if (fattr->valid & NFS_ATTR_FATTR_NLINK)
set_nlink(inode, fattr->nlink);
else if (nfs_server_capable(inode, NFS_CAP_NLINK))
else if (fattr_supported & NFS_ATTR_FATTR_NLINK)
nfs_set_cache_invalid(inode, NFS_INO_INVALID_NLINK);
if (fattr->valid & NFS_ATTR_FATTR_OWNER)
inode->i_uid = fattr->uid;
else if (nfs_server_capable(inode, NFS_CAP_OWNER))
else if (fattr_supported & NFS_ATTR_FATTR_OWNER)
nfs_set_cache_invalid(inode, NFS_INO_INVALID_OTHER);
if (fattr->valid & NFS_ATTR_FATTR_GROUP)
inode->i_gid = fattr->gid;
else if (nfs_server_capable(inode, NFS_CAP_OWNER_GROUP))
else if (fattr_supported & NFS_ATTR_FATTR_GROUP)
nfs_set_cache_invalid(inode, NFS_INO_INVALID_OTHER);
if (nfs_server_capable(inode, NFS_CAP_XATTR))
nfs_set_cache_invalid(inode, NFS_INO_INVALID_XATTR);
if (fattr->valid & NFS_ATTR_FATTR_BLOCKS_USED)
inode->i_blocks = fattr->du.nfs2.blocks;
else if (fattr->valid & NFS_ATTR_FATTR_SPACE_USED) {
else if (fattr_supported & NFS_ATTR_FATTR_BLOCKS_USED &&
fattr->size != 0)
nfs_set_cache_invalid(inode, NFS_INO_INVALID_BLOCKS);
if (fattr->valid & NFS_ATTR_FATTR_SPACE_USED) {
/*
* report the blocks in 512byte units
*/
inode->i_blocks = nfs_calc_block_size(fattr->du.nfs3.used);
} else if (fattr->size != 0)
} else if (fattr_supported & NFS_ATTR_FATTR_SPACE_USED &&
fattr->size != 0)
nfs_set_cache_invalid(inode, NFS_INO_INVALID_BLOCKS);
nfs_setsecurity(inode, fattr, label);
@ -1952,9 +1957,10 @@ EXPORT_SYMBOL_GPL(nfs_post_op_update_inode_force_wcc);
*/
static int nfs_update_inode(struct inode *inode, struct nfs_fattr *fattr)
{
struct nfs_server *server;
struct nfs_server *server = NFS_SERVER(inode);
struct nfs_inode *nfsi = NFS_I(inode);
loff_t cur_isize, new_isize;
u64 fattr_supported = server->fattr_valid;
unsigned long invalid = 0;
unsigned long now = jiffies;
unsigned long save_cache_validity;
@ -1998,7 +2004,6 @@ static int nfs_update_inode(struct inode *inode, struct nfs_fattr *fattr)
goto out_err;
}
server = NFS_SERVER(inode);
/* Update the fsid? */
if (S_ISDIR(inode->i_mode) && (fattr->valid & NFS_ATTR_FATTR_FSID) &&
!nfs_fsid_equal(&server->fsid, &fattr->fsid) &&
@ -2066,7 +2071,7 @@ static int nfs_update_inode(struct inode *inode, struct nfs_fattr *fattr)
if (fattr->valid & NFS_ATTR_FATTR_MTIME) {
inode->i_mtime = fattr->mtime;
} else if (server->caps & NFS_CAP_MTIME) {
} else if (fattr_supported & NFS_ATTR_FATTR_MTIME) {
nfsi->cache_validity |=
save_cache_validity & NFS_INO_INVALID_MTIME;
cache_revalidated = false;
@ -2074,7 +2079,7 @@ static int nfs_update_inode(struct inode *inode, struct nfs_fattr *fattr)
if (fattr->valid & NFS_ATTR_FATTR_CTIME) {
inode->i_ctime = fattr->ctime;
} else if (server->caps & NFS_CAP_CTIME) {
} else if (fattr_supported & NFS_ATTR_FATTR_CTIME) {
nfsi->cache_validity |=
save_cache_validity & NFS_INO_INVALID_CTIME;
cache_revalidated = false;
@ -2114,7 +2119,7 @@ static int nfs_update_inode(struct inode *inode, struct nfs_fattr *fattr)
if (fattr->valid & NFS_ATTR_FATTR_ATIME)
inode->i_atime = fattr->atime;
else if (server->caps & NFS_CAP_ATIME) {
else if (fattr_supported & NFS_ATTR_FATTR_ATIME) {
nfsi->cache_validity |=
save_cache_validity & NFS_INO_INVALID_ATIME;
cache_revalidated = false;
@ -2129,7 +2134,7 @@ static int nfs_update_inode(struct inode *inode, struct nfs_fattr *fattr)
| NFS_INO_INVALID_ACL;
attr_changed = true;
}
} else if (server->caps & NFS_CAP_MODE) {
} else if (fattr_supported & NFS_ATTR_FATTR_MODE) {
nfsi->cache_validity |=
save_cache_validity & NFS_INO_INVALID_MODE;
cache_revalidated = false;
@ -2142,7 +2147,7 @@ static int nfs_update_inode(struct inode *inode, struct nfs_fattr *fattr)
inode->i_uid = fattr->uid;
attr_changed = true;
}
} else if (server->caps & NFS_CAP_OWNER) {
} else if (fattr_supported & NFS_ATTR_FATTR_OWNER) {
nfsi->cache_validity |=
save_cache_validity & NFS_INO_INVALID_OTHER;
cache_revalidated = false;
@ -2155,7 +2160,7 @@ static int nfs_update_inode(struct inode *inode, struct nfs_fattr *fattr)
inode->i_gid = fattr->gid;
attr_changed = true;
}
} else if (server->caps & NFS_CAP_OWNER_GROUP) {
} else if (fattr_supported & NFS_ATTR_FATTR_GROUP) {
nfsi->cache_validity |=
save_cache_validity & NFS_INO_INVALID_OTHER;
cache_revalidated = false;
@ -2168,7 +2173,7 @@ static int nfs_update_inode(struct inode *inode, struct nfs_fattr *fattr)
set_nlink(inode, fattr->nlink);
attr_changed = true;
}
} else if (server->caps & NFS_CAP_NLINK) {
} else if (fattr_supported & NFS_ATTR_FATTR_NLINK) {
nfsi->cache_validity |=
save_cache_validity & NFS_INO_INVALID_NLINK;
cache_revalidated = false;
@ -2179,9 +2184,15 @@ static int nfs_update_inode(struct inode *inode, struct nfs_fattr *fattr)
* report the blocks in 512byte units
*/
inode->i_blocks = nfs_calc_block_size(fattr->du.nfs3.used);
} else if (fattr->valid & NFS_ATTR_FATTR_BLOCKS_USED)
} else if (fattr_supported & NFS_ATTR_FATTR_SPACE_USED) {
nfsi->cache_validity |=
save_cache_validity & NFS_INO_INVALID_BLOCKS;
cache_revalidated = false;
}
if (fattr->valid & NFS_ATTR_FATTR_BLOCKS_USED) {
inode->i_blocks = fattr->du.nfs2.blocks;
else {
} else if (fattr_supported & NFS_ATTR_FATTR_BLOCKS_USED) {
nfsi->cache_validity |=
save_cache_validity & NFS_INO_INVALID_BLOCKS;
cache_revalidated = false;

49
fs/nfs/nfs4proc.c
View file

@ -3868,12 +3868,9 @@ static int _nfs4_server_capabilities(struct nfs_server *server, struct nfs_fh *f
res.attr_bitmask[2] &= FATTR4_WORD2_NFS42_MASK;
}
memcpy(server->attr_bitmask, res.attr_bitmask, sizeof(server->attr_bitmask));
server->caps &= ~(NFS_CAP_ACLS|NFS_CAP_HARDLINKS|
NFS_CAP_SYMLINKS|NFS_CAP_FILEID|
NFS_CAP_MODE|NFS_CAP_NLINK|NFS_CAP_OWNER|
NFS_CAP_OWNER_GROUP|NFS_CAP_ATIME|
NFS_CAP_CTIME|NFS_CAP_MTIME|
NFS_CAP_SECURITY_LABEL);
server->caps &= ~(NFS_CAP_ACLS | NFS_CAP_HARDLINKS |
NFS_CAP_SYMLINKS| NFS_CAP_SECURITY_LABEL);
server->fattr_valid = NFS_ATTR_FATTR_V4;
if (res.attr_bitmask[0] & FATTR4_WORD0_ACL &&
res.acl_bitmask & ACL4_SUPPORT_ALLOW_ACL)
server->caps |= NFS_CAP_ACLS;
@ -3881,25 +3878,29 @@ static int _nfs4_server_capabilities(struct nfs_server *server, struct nfs_fh *f
server->caps |= NFS_CAP_HARDLINKS;
if (res.has_symlinks != 0)
server->caps |= NFS_CAP_SYMLINKS;
if (res.attr_bitmask[0] & FATTR4_WORD0_FILEID)
server->caps |= NFS_CAP_FILEID;
if (res.attr_bitmask[1] & FATTR4_WORD1_MODE)
server->caps |= NFS_CAP_MODE;
if (res.attr_bitmask[1] & FATTR4_WORD1_NUMLINKS)
server->caps |= NFS_CAP_NLINK;
if (res.attr_bitmask[1] & FATTR4_WORD1_OWNER)
server->caps |= NFS_CAP_OWNER;
if (res.attr_bitmask[1] & FATTR4_WORD1_OWNER_GROUP)
server->caps |= NFS_CAP_OWNER_GROUP;
if (res.attr_bitmask[1] & FATTR4_WORD1_TIME_ACCESS)
server->caps |= NFS_CAP_ATIME;
if (res.attr_bitmask[1] & FATTR4_WORD1_TIME_METADATA)
server->caps |= NFS_CAP_CTIME;
if (res.attr_bitmask[1] & FATTR4_WORD1_TIME_MODIFY)
server->caps |= NFS_CAP_MTIME;
if (!(res.attr_bitmask[0] & FATTR4_WORD0_FILEID))
server->fattr_valid &= ~NFS_ATTR_FATTR_FILEID;
if (!(res.attr_bitmask[1] & FATTR4_WORD1_MODE))
server->fattr_valid &= ~NFS_ATTR_FATTR_MODE;
if (!(res.attr_bitmask[1] & FATTR4_WORD1_NUMLINKS))
server->fattr_valid &= ~NFS_ATTR_FATTR_NLINK;
if (!(res.attr_bitmask[1] & FATTR4_WORD1_OWNER))
server->fattr_valid &= ~(NFS_ATTR_FATTR_OWNER |
NFS_ATTR_FATTR_OWNER_NAME);
if (!(res.attr_bitmask[1] & FATTR4_WORD1_OWNER_GROUP))
server->fattr_valid &= ~(NFS_ATTR_FATTR_GROUP |
NFS_ATTR_FATTR_GROUP_NAME);
if (!(res.attr_bitmask[1] & FATTR4_WORD1_SPACE_USED))
server->fattr_valid &= ~NFS_ATTR_FATTR_SPACE_USED;
if (!(res.attr_bitmask[1] & FATTR4_WORD1_TIME_ACCESS))
server->fattr_valid &= ~NFS_ATTR_FATTR_ATIME;
if (!(res.attr_bitmask[1] & FATTR4_WORD1_TIME_METADATA))
server->fattr_valid &= ~NFS_ATTR_FATTR_CTIME;
if (!(res.attr_bitmask[1] & FATTR4_WORD1_TIME_MODIFY))
server->fattr_valid &= ~NFS_ATTR_FATTR_MTIME;
#ifdef CONFIG_NFS_V4_SECURITY_LABEL
if (res.attr_bitmask[2] & FATTR4_WORD2_SECURITY_LABEL)
server->caps |= NFS_CAP_SECURITY_LABEL;
if (!(res.attr_bitmask[2] & FATTR4_WORD2_SECURITY_LABEL))
server->fattr_valid &= ~NFS_ATTR_FATTR_V4_SECURITY_LABEL;
#endif
memcpy(server->attr_bitmask_nl, res.attr_bitmask,
sizeof(server->attr_bitmask));

11
include/linux/nfs_fs_sb.h
View file

@ -191,6 +191,8 @@ struct nfs_server {
dev_t s_dev; /* superblock dev numbers */
struct nfs_auth_info auth_info; /* parsed auth flavors */
__u64 fattr_valid; /* Valid attributes */
#ifdef CONFIG_NFS_FSCACHE
struct nfs_fscache_key *fscache_key; /* unique key for superblock */
struct fscache_cookie *fscache; /* superblock cookie */
@ -267,16 +269,7 @@ struct nfs_server {
#define NFS_CAP_SYMLINKS (1U << 2)
#define NFS_CAP_ACLS (1U << 3)
#define NFS_CAP_ATOMIC_OPEN (1U << 4)
/* #define NFS_CAP_CHANGE_ATTR (1U << 5) */
#define NFS_CAP_LGOPEN (1U << 5)
#define NFS_CAP_FILEID (1U << 6)
#define NFS_CAP_MODE (1U << 7)
#define NFS_CAP_NLINK (1U << 8)
#define NFS_CAP_OWNER (1U << 9)
#define NFS_CAP_OWNER_GROUP (1U << 10)
#define NFS_CAP_ATIME (1U << 11)
#define NFS_CAP_CTIME (1U << 12)
#define NFS_CAP_MTIME (1U << 13)
#define NFS_CAP_POSIX_LOCK (1U << 14)
#define NFS_CAP_UIDGID_NOMAP (1U << 15)
#define NFS_CAP_STATEID_NFSV41 (1U << 16)