* Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved.
* Use is subject to license terms.
*
- * Copyright (c) 2011, 2016, Intel Corporation.
+ * Copyright (c) 2011, 2017, Intel Corporation.
*/
/*
* This file is part of Lustre, http://www.lustre.org/
#include "llite_internal.h"
#include <linux/exportfs.h>
-__u32 get_uuid2int(const char *name, int len)
+u32 get_uuid2int(const char *name, int len)
{
- __u32 key0 = 0x12a3fe2d, key1 = 0x37abe8f9;
- while (len--) {
- __u32 key = key1 + (key0 ^ (*name++ * 7152373));
- if (key & 0x80000000) key -= 0x7fffffff;
- key1 = key0;
- key0 = key;
- }
- return (key0 << 1);
+ u32 key0 = 0x12a3fe2d, key1 = 0x37abe8f9;
+
+ while (len--) {
+ u32 key = key1 + (key0 ^ (*name++ * 7152373));
+
+ if (key & 0x80000000)
+ key -= 0x7fffffff;
+
+ key1 = key0;
+ key0 = key;
+ }
+ return (key0 << 1);
}
struct inode *search_inode_for_lustre(struct super_block *sb,
const struct lu_fid *fid)
{
- struct ll_sb_info *sbi = ll_s2sbi(sb);
- struct ptlrpc_request *req = NULL;
- struct inode *inode = NULL;
- int eadatalen = 0;
- unsigned long hash = cl_fid_build_ino(fid,
- ll_need_32bit_api(sbi));
- struct md_op_data *op_data;
- int rc;
- ENTRY;
-
- CDEBUG(D_INFO, "searching inode for:(%lu,"DFID")\n", hash, PFID(fid));
+ struct ll_sb_info *sbi = ll_s2sbi(sb);
+ struct ptlrpc_request *req = NULL;
+ struct inode *inode = NULL;
+ int eadatalen = 0;
+ unsigned long hash = cl_fid_build_ino(fid, ll_need_32bit_api(sbi));
+ struct md_op_data *op_data;
+ int rc;
+
+ ENTRY;
+
+ CDEBUG(D_INFO, "searching inode for:(%lu,"DFID")\n", hash, PFID(fid));
inode = ilookup5(sb, hash, ll_test_inode_by_fid, (void *)fid);
if (inode)
if (rc)
RETURN(ERR_PTR(rc));
- /* Because inode is NULL, ll_prep_md_op_data can not
- * be used here. So we allocate op_data ourselves */
- OBD_ALLOC_PTR(op_data);
- if (op_data == NULL)
- return ERR_PTR(-ENOMEM);
-
- op_data->op_fid1 = *fid;
- op_data->op_mode = eadatalen;
- op_data->op_valid = OBD_MD_FLEASIZE;
-
- /* mds_fid2dentry ignores f_type */
- rc = md_getattr(sbi->ll_md_exp, op_data, &req);
- OBD_FREE_PTR(op_data);
- if (rc) {
- /* Suppress erroneous/confusing messages when NFS
- * is out of sync and requests old data. */
+ /*
+ * Because inode is NULL, ll_prep_md_op_data can not
+ * be used here. So we allocate op_data ourselves
+ */
+ OBD_ALLOC_PTR(op_data);
+ if (!op_data)
+ return ERR_PTR(-ENOMEM);
+
+ op_data->op_fid1 = *fid;
+ op_data->op_mode = eadatalen;
+ op_data->op_valid = OBD_MD_FLEASIZE;
+
+ /* mds_fid2dentry ignores f_type */
+ rc = md_getattr(sbi->ll_md_exp, op_data, &req);
+ OBD_FREE_PTR(op_data);
+ if (rc) {
+ /*
+ * Suppress erroneous/confusing messages when NFS
+ * is out of sync and requests old data.
+ */
CDEBUG(D_INFO, "can't get object attrs, fid "DFID", rc %d\n",
PFID(fid), rc);
- RETURN(ERR_PTR(rc));
- }
- rc = ll_prep_inode(&inode, req, sb, NULL);
- ptlrpc_req_finished(req);
- if (rc)
- RETURN(ERR_PTR(rc));
-
- RETURN(inode);
+ RETURN(ERR_PTR(rc));
+ }
+ rc = ll_prep_inode(&inode, req, sb, NULL);
+ ptlrpc_req_finished(req);
+ if (rc)
+ RETURN(ERR_PTR(rc));
+
+ RETURN(inode);
}
struct lustre_nfs_fid {
- struct lu_fid lnf_child;
- struct lu_fid lnf_parent;
+ struct lu_fid lnf_child;
+ struct lu_fid lnf_parent;
};
static struct dentry *
ll_iget_for_nfs(struct super_block *sb, struct lu_fid *fid, struct lu_fid *parent)
{
- struct inode *inode;
- struct dentry *result;
- ENTRY;
+ struct inode *inode;
+ struct dentry *result;
+
+ ENTRY;
if (!fid_is_sane(fid))
RETURN(ERR_PTR(-ESTALE));
CDEBUG(D_INFO, "Get dentry for fid: "DFID"\n", PFID(fid));
- inode = search_inode_for_lustre(sb, fid);
- if (IS_ERR(inode))
- RETURN(ERR_PTR(PTR_ERR(inode)));
+ inode = search_inode_for_lustre(sb, fid);
+ if (IS_ERR(inode))
+ RETURN(ERR_PTR(PTR_ERR(inode)));
- if (is_bad_inode(inode)) {
- /* we didn't find the right inode.. */
- iput(inode);
- RETURN(ERR_PTR(-ESTALE));
- }
+ if (is_bad_inode(inode)) {
+ /* we didn't find the right inode.. */
+ iput(inode);
+ RETURN(ERR_PTR(-ESTALE));
+ }
/* N.B. d_obtain_alias() drops inode ref on error */
result = d_obtain_alias(inode);
* 255 -- error.
*/
#ifndef HAVE_ENCODE_FH_PARENT
-static int ll_encode_fh(struct dentry *de, __u32 *fh, int *plen,
+static int ll_encode_fh(struct dentry *de, u32 *fh, int *plen,
int connectable)
{
struct inode *inode = de->d_inode;
struct inode *parent = de->d_parent->d_inode;
#else
-static int ll_encode_fh(struct inode *inode, __u32 *fh, int *plen,
+static int ll_encode_fh(struct inode *inode, u32 *fh, int *plen,
struct inode *parent)
{
#endif
int fileid_len = sizeof(struct lustre_nfs_fid) / 4;
struct lustre_nfs_fid *nfs_fid = (void *)fh;
+
ENTRY;
CDEBUG(D_INFO, "%s: encoding for ("DFID") maxlen=%d minlen=%d\n",
}
nfs_fid->lnf_child = *ll_inode2fid(inode);
- if (parent != NULL)
+ if (parent)
nfs_fid->lnf_parent = *ll_inode2fid(parent);
else
fid_zero(&nfs_fid->lnf_parent);
struct ll_getname_data *lgd =
container_of(ctx, struct ll_getname_data, ctx);
#endif /* HAVE_FILLDIR_USE_CTX */
- /* It is hack to access lde_fid for comparison with lgd_fid.
- * So the input 'name' must be part of the 'lu_dirent'. */
- struct lu_dirent *lde = container_of0(name, struct lu_dirent, lde_name);
- struct lu_fid fid;
-
- fid_le_to_cpu(&fid, &lde->lde_fid);
- if (lu_fid_eq(&fid, &lgd->lgd_fid)) {
- memcpy(lgd->lgd_name, name, namelen);
- lgd->lgd_name[namelen] = 0;
- lgd->lgd_found = 1;
- }
+ /*
+ * It is hack to access lde_fid for comparison with lgd_fid.
+ * So the input 'name' must be part of the 'lu_dirent'.
+ */
+ struct lu_dirent *lde = container_of0(name, struct lu_dirent, lde_name);
+ struct lu_fid fid;
+
+ fid_le_to_cpu(&fid, &lde->lde_fid);
+ if (lu_fid_eq(&fid, &lgd->lgd_fid)) {
+ memcpy(lgd->lgd_name, name, namelen);
+ lgd->lgd_name[namelen] = 0;
+ lgd->lgd_found = 1;
+ }
return lgd->lgd_found;
}
{
struct inode *dir = dentry->d_inode;
struct ll_getname_data lgd = {
- .lgd_name = name,
- .lgd_fid = ll_i2info(child->d_inode)->lli_fid,
+ .lgd_name = name,
+ .lgd_fid = ll_i2info(child->d_inode)->lli_fid,
#ifdef HAVE_DIR_CONTEXT
- .ctx.actor = ll_nfs_get_name_filldir,
+ .ctx.actor = ll_nfs_get_name_filldir,
#endif
.lgd_found = 0,
};
struct md_op_data *op_data;
- __u64 pos = 0;
+ u64 pos = 0;
int rc;
+
ENTRY;
- if (!dir || !S_ISDIR(dir->i_mode))
- GOTO(out, rc = -ENOTDIR);
+ if (!dir || !S_ISDIR(dir->i_mode))
+ GOTO(out, rc = -ENOTDIR);
- if (!dir->i_fop)
- GOTO(out, rc = -EINVAL);
+ if (!dir->i_fop)
+ GOTO(out, rc = -EINVAL);
op_data = ll_prep_md_op_data(NULL, dir, dir, NULL, 0, 0,
LUSTRE_OPC_ANY, dir);
}
static struct dentry *ll_fh_to_dentry(struct super_block *sb, struct fid *fid,
- int fh_len, int fh_type)
+ int fh_len, int fh_type)
{
- struct lustre_nfs_fid *nfs_fid = (struct lustre_nfs_fid *)fid;
+ struct lustre_nfs_fid *nfs_fid = (struct lustre_nfs_fid *)fid;
if (fh_type != FILEID_LUSTRE)
RETURN(ERR_PTR(-EPROTO));
- RETURN(ll_iget_for_nfs(sb, &nfs_fid->lnf_child, &nfs_fid->lnf_parent));
+ RETURN(ll_iget_for_nfs(sb, &nfs_fid->lnf_child, &nfs_fid->lnf_parent));
}
static struct dentry *ll_fh_to_parent(struct super_block *sb, struct fid *fid,
- int fh_len, int fh_type)
+ int fh_len, int fh_type)
{
- struct lustre_nfs_fid *nfs_fid = (struct lustre_nfs_fid *)fid;
+ struct lustre_nfs_fid *nfs_fid = (struct lustre_nfs_fid *)fid;
if (fh_type != FILEID_LUSTRE)
RETURN(ERR_PTR(-EPROTO));
- RETURN(ll_iget_for_nfs(sb, &nfs_fid->lnf_parent, NULL));
+ RETURN(ll_iget_for_nfs(sb, &nfs_fid->lnf_parent, NULL));
}
int ll_dir_get_parent_fid(struct inode *dir, struct lu_fid *parent_fid)
struct md_op_data *op_data;
int rc;
int lmmsize;
+
ENTRY;
LASSERT(dir && S_ISDIR(dir->i_mode));
static struct dentry *ll_get_parent(struct dentry *dchild)
{
- struct lu_fid parent_fid = { 0 };
- int rc;
- struct dentry *dentry;
+ struct lu_fid parent_fid = { 0 };
+ int rc;
+ struct dentry *dentry;
+
ENTRY;
rc = ll_dir_get_parent_fid(dchild->d_inode, &parent_fid);
}
struct export_operations lustre_export_operations = {
- .get_parent = ll_get_parent,
- .encode_fh = ll_encode_fh,
- .get_name = ll_get_name,
- .fh_to_dentry = ll_fh_to_dentry,
- .fh_to_parent = ll_fh_to_parent,
+ .get_parent = ll_get_parent,
+ .encode_fh = ll_encode_fh,
+ .get_name = ll_get_name,
+ .fh_to_dentry = ll_fh_to_dentry,
+ .fh_to_parent = ll_fh_to_parent,
};
git://git.whamcloud.com / fs / lustre-release.git / blobdiff