/*
- * linux/fs/obdfs/namei.c
*
* This code is issued under the GNU General Public License.
* See the file COPYING in this distribution
#include <linux/fs.h>
#include <linux/locks.h>
#include <linux/quotaops.h>
+
+#define DEBUG_SUBSYSTEM S_LLIGHT
+
#include <linux/obd_support.h>
-#include <linux/obdfs.h>
-extern struct address_space_operations obdfs_aops;
+#include <linux/lustre_light.h>
+extern struct address_space_operations ll_aops;
/* from super.c */
-extern void obdfs_change_inode(struct inode *inode);
-extern int obdfs_setattr(struct dentry *de, struct iattr *attr);
+extern void ll_change_inode(struct inode *inode);
+extern int ll_setattr(struct dentry *de, struct iattr *attr);
/* from dir.c */
-extern int ext2_add_link (struct dentry *dentry, struct inode *inode);
-ino_t obdfs_inode_by_name(struct inode * dir, struct dentry *dentry, int *typ);
+extern int ll_add_link (struct dentry *dentry, struct inode *inode);
+ino_t ll_inode_by_name(struct inode * dir, struct dentry *dentry, int *typ);
int ext2_make_empty(struct inode *inode, struct inode *parent);
struct ext2_dir_entry_2 * ext2_find_entry (struct inode * dir,
struct dentry *dentry, struct page ** res_page);
static inline void ext2_inc_count(struct inode *inode)
{
inode->i_nlink++;
- obdfs_change_inode(inode);
}
/* postpone the disk update until the inode really goes away */
static inline void ext2_dec_count(struct inode *inode)
{
inode->i_nlink--;
- if (inode->i_nlink > 0)
- obdfs_change_inode(inode);
}
static inline int ext2_add_nondir(struct dentry *dentry, struct inode *inode)
{
int err;
- err = ext2_add_link(dentry, inode);
+ err = ll_add_link(dentry, inode);
if (!err) {
d_instantiate(dentry, inode);
return 0;
}
/* methods */
-static struct dentry *obdfs_lookup(struct inode * dir, struct dentry *dentry)
+static struct dentry *ll_lookup(struct inode * dir, struct dentry *dentry)
{
- struct obdo *oa;
+ struct mds_rep *rep;
+ struct ptlrep_hdr *hdr = NULL;
struct inode * inode = NULL;
+ struct ll_sb_info *sbi = ll_i2sbi(dir);
+ int err;
int type;
ino_t ino;
if (dentry->d_name.len > EXT2_NAME_LEN)
return ERR_PTR(-ENAMETOOLONG);
- ino = obdfs_inode_by_name(dir, dentry, &type);
+ ino = ll_inode_by_name(dir, dentry, &type);
if (!ino)
goto negative;
- oa = obdo_fromid(IID(dir), ino, type,
- OBD_MD_FLNOTOBD | OBD_MD_FLBLOCKS);
- if ( IS_ERR(oa) ) {
+ err = mdc_getattr(sbi->ll_peer_ptr, ino, type,
+ OBD_MD_FLNOTOBD|OBD_MD_FLBLOCKS, &rep, &hdr);
+ if ( err ) {
printk(__FUNCTION__ ": obdo_fromid failed\n");
EXIT;
return ERR_PTR(-EACCES);
}
- inode = iget4(dir->i_sb, ino, NULL, oa);
- obdo_free(oa);
+ inode = iget4(dir->i_sb, ino, NULL, rep);
+
+ /* FIXME: this is not the right way to get this size */
+ OBD_FREE(hdr, sizeof(struct ptlrep_hdr) + sizeof(struct mds_rep));
if (!inode)
return ERR_PTR(-EACCES);
return !memcmp(name, de->name, len);
}
-static struct inode *obdfs_new_inode(struct inode *dir, int mode)
+static struct inode *ll_create_node(struct inode *dir, const char *name,
+ int namelen, const char *tgt, int tgtlen,
+ int mode, __u64 id)
{
- struct obdo *oa;
struct inode *inode;
+ struct mds_rep *rep;
+ struct ptlrep_hdr *hdr;
int err;
+ time_t time = CURRENT_TIME;
+ struct ll_sb_info *sbi = ll_i2sbi(dir);
ENTRY;
- if (IOPS(dir, create) == NULL) {
- printk(KERN_ERR __FUNCTION__ ": no create method!\n");
- EXIT;
- return ERR_PTR(-EIO);
- }
- oa = obdo_alloc();
- if (!oa) {
- EXIT;
- return ERR_PTR(-ENOMEM);
- }
-
- /* Send a hint to the create method on the type of file to create */
- oa->o_mode = mode;
- oa->o_valid |= OBD_MD_FLMODE;
- CDEBUG(D_INODE, "\n");
- err = IOPS(dir, create)(IID(dir), oa);
- CDEBUG(D_INODE, "\n");
- if ( err ) {
- printk("new_inode - fatal: err %d\n", err);
- obdo_free(oa);
+ err = mdc_create(sbi->ll_peer_ptr, dir, name, namelen, tgt, tgtlen,
+ mode, id,
+ current->uid, current->gid, time, &rep, &hdr);
+ if (err) {
EXIT;
- return ERR_PTR(err);
- }
- CDEBUG(D_INODE, "obdo mode %o\n", oa->o_mode);
-
- inode = iget4(dir->i_sb, (ino_t)oa->o_id, NULL, oa);
- CDEBUG(D_INODE, "\n");
- obdo_free(oa);
-
- if (!inode) {
- printk("new_inode -fatal: %ld\n", (long)oa->o_id);
- IOPS(dir, destroy)(IID(dir), oa);
+ return ERR_PTR(err);
+ }
+ if ( hdr->status) {
+ EXIT;
+ return ERR_PTR(hdr->status);
+ }
+ rep->valid = OBD_MD_FLNOTOBD;
+
+ rep->objid = id;
+ rep->nlink = 1;
+ rep->atime = rep->ctime = rep->mtime = time;
+ rep->mode = mode;
+ CDEBUG(D_INODE, "-- new_inode: objid %lld, ino %d, mode %o\n",
+ rep->objid, rep->ino, rep->mode);
+
+ inode = iget4(dir->i_sb, rep->ino, NULL, rep);
+ if (IS_ERR(inode)) {
+ printk(__FUNCTION__ ": new_inode -fatal: %ld\n",
+ PTR_ERR(inode));
EXIT;
return ERR_PTR(-EIO);
}
if (!list_empty(&inode->i_dentry)) {
- printk("new_inode -fatal: aliases %ld, ct %d lnk %d\n",
- (long)oa->o_id,
- atomic_read(&inode->i_count),
+ printk("new_inode -fatal: aliases %d, ct %d lnk %d\n",
+ rep->ino, atomic_read(&inode->i_count),
inode->i_nlink);
- IOPS(dir, destroy)(IID(dir), oa);
iput(inode);
EXIT;
return ERR_PTR(-EIO);
EXIT;
return inode;
-} /* obdfs_new_inode */
+} /* ll_new_inode */
+
+int ll_mdc_unlink(struct inode *dir, const char *name, int len)
+{
+ struct mds_rep *rep;
+ struct ptlrep_hdr *hdr;
+ int err;
+ struct ll_sb_info *sbi = ll_i2sbi(dir);
+
+ ENTRY;
+
+ err = mdc_unlink(sbi->ll_peer_ptr, dir, name, len, &rep, &hdr);
+
+ if (err) {
+ EXIT;
+ return err;
+ }
+ if ( hdr->status) {
+ EXIT;
+ return hdr->status;
+ }
+
+ EXIT;
+ return 0;
+}
+
+int ll_mdc_link(struct dentry *src, struct inode *dir,
+ const char *name, int len)
+{
+ struct mds_rep *rep;
+ struct ptlrep_hdr *hdr;
+ int err;
+ struct ll_sb_info *sbi = ll_i2sbi(dir);
+
+ ENTRY;
+
+ err = mdc_link(sbi->ll_peer_ptr, src, dir, name, len, &rep, &hdr);
+
+ if (err) {
+ EXIT;
+ return err;
+ }
+ if ( hdr->status) {
+ EXIT;
+ return hdr->status;
+ }
+
+ EXIT;
+ return 0;
+}
+
+int ll_mdc_rename(struct inode *src, struct inode *tgt,
+ struct dentry *old, struct dentry *new)
+{
+ struct mds_rep *rep;
+ struct ptlrep_hdr *hdr;
+ int err;
+ struct ll_sb_info *sbi = ll_i2sbi(src);
+
+ ENTRY;
+
+ err = mdc_rename(sbi->ll_peer_ptr, src, tgt,
+ old->d_name.name, old->d_name.len,
+ new->d_name.name, new->d_name.len,
+ &rep, &hdr);
+
+ if (err) {
+ EXIT;
+ return err;
+ }
+ if ( hdr->status) {
+ EXIT;
+ return hdr->status;
+ }
+ EXIT;
+ return 0;
+}
/*
* By the time this is called, we already have created
* If the create succeeds, we fill in the inode information
* with d_instantiate().
*/
-static int obdfs_create (struct inode * dir, struct dentry * dentry, int mode)
+static int ll_create (struct inode * dir, struct dentry * dentry, int mode)
{
- struct inode * inode = obdfs_new_inode (dir, mode);
- int err = PTR_ERR(inode);
+ int err;
+ struct obdo oa;
+ struct inode * inode;
+
+ err = obd_create(IID(dir), &oa);
+ if (err) {
+ EXIT;
+ return err;
+ }
+
+ mode = mode | S_IFREG;
+ CDEBUG(D_DENTRY, "name %s mode %o\n", dentry->d_name.name, mode);
+ inode = ll_create_node(dir, dentry->d_name.name, dentry->d_name.len,
+ NULL, 0,
+ mode, oa.o_id);
+ err = PTR_ERR(inode);
if (!IS_ERR(inode)) {
- inode->i_op = &obdfs_file_inode_operations;
- inode->i_fop = &obdfs_file_operations;
- inode->i_mapping->a_ops = &obdfs_aops;
+ // XXX clean up the object
+ inode->i_op = &ll_file_inode_operations;
+ inode->i_fop = &ll_file_operations;
+ inode->i_mapping->a_ops = &ll_aops;
err = ext2_add_nondir(dentry, inode);
}
+ EXIT;
return err;
-} /* obdfs_create */
+} /* ll_create */
-static int obdfs_mknod (struct inode * dir, struct dentry *dentry, int mode, int rdev)
+static int ll_mknod (struct inode * dir, struct dentry *dentry, int mode, int rdev)
{
- struct inode * inode = obdfs_new_inode (dir, mode);
+ struct inode * inode = ll_create_node(dir, dentry->d_name.name,
+ dentry->d_name.len, NULL, 0,
+ mode, 0);
int err = PTR_ERR(inode);
if (!IS_ERR(inode)) {
init_special_inode(inode, mode, rdev);
- obdfs_change_inode(inode);
err = ext2_add_nondir(dentry, inode);
}
return err;
}
-static int obdfs_symlink (struct inode * dir, struct dentry * dentry,
+static int ll_symlink (struct inode * dir, struct dentry * dentry,
const char * symname)
{
- struct super_block * sb = dir->i_sb;
int err = -ENAMETOOLONG;
- unsigned l = strlen(symname)+1;
+ unsigned l = strlen(symname);
struct inode * inode;
- struct obdfs_inode_info *oinfo;
+ struct ll_inode_info *oinfo;
- if (l > sb->s_blocksize)
- goto out;
+ if (l > LL_INLINESZ)
+ return err;
- inode = obdfs_new_inode (dir, S_IFLNK | S_IRWXUGO);
+ inode = ll_create_node(dir, dentry->d_name.name,
+ dentry->d_name.len, symname, l,
+ S_IFLNK | S_IRWXUGO, 0);
err = PTR_ERR(inode);
if (IS_ERR(inode))
- goto out;
+ return err;
- oinfo = obdfs_i2info(inode);
- if (l >= sizeof(oinfo->oi_inline)) {
- /* slow symlink */
- inode->i_op = &page_symlink_inode_operations;
- inode->i_mapping->a_ops = &obdfs_aops;
- err = block_symlink(inode, symname, l);
- if (err)
- goto out_fail;
- } else {
- /* fast symlink */
- inode->i_op = &obdfs_fast_symlink_inode_operations;
- memcpy(oinfo->oi_inline, symname, l);
- inode->i_size = l-1;
- }
- obdfs_change_inode(inode);
+ oinfo = ll_i2info(inode);
+
+ inode->i_op = &ll_fast_symlink_inode_operations;
+ memcpy(oinfo->lli_inline, symname, l);
+ inode->i_size = l-1;
err = ext2_add_nondir(dentry, inode);
-out:
- return err;
-out_fail:
- ext2_dec_count(inode);
- iput (inode);
- goto out;
+ if (err) {
+ ext2_dec_count(inode);
+ iput (inode);
+ }
+ return err;
}
-
-
-static int obdfs_link (struct dentry * old_dentry, struct inode * dir,
+static int ll_link (struct dentry * old_dentry, struct inode * dir,
struct dentry *dentry)
{
+ int err;
struct inode *inode = old_dentry->d_inode;
if (S_ISDIR(inode->i_mode))
if (inode->i_nlink >= EXT2_LINK_MAX)
return -EMLINK;
+ err = ll_mdc_link(old_dentry, dir,
+ dentry->d_name.name, dentry->d_name.len);
+ if (err) {
+ EXIT;
+ return err;
+ }
+
inode->i_ctime = CURRENT_TIME;
ext2_inc_count(inode);
atomic_inc(&inode->i_count);
}
-static int obdfs_mkdir(struct inode * dir, struct dentry * dentry, int mode)
+static int ll_mkdir(struct inode * dir, struct dentry * dentry, int mode)
{
struct inode * inode;
int err = -EMLINK;
ext2_inc_count(dir);
- inode = obdfs_new_inode (dir, S_IFDIR | mode);
+ inode = ll_create_node (dir, dentry->d_name.name,
+ dentry->d_name.len, NULL, 0,
+ S_IFDIR | mode, 0);
err = PTR_ERR(inode);
if (IS_ERR(inode))
goto out_dir;
- inode->i_op = &obdfs_dir_inode_operations;
- inode->i_fop = &obdfs_dir_operations;
- inode->i_mapping->a_ops = &obdfs_aops;
-
+ inode->i_op = &ll_dir_inode_operations;
+ inode->i_fop = &ll_dir_operations;
+ inode->i_mapping->a_ops = &ll_aops;
+ inode->i_nlink = 1;
ext2_inc_count(inode);
err = ext2_make_empty(inode, dir);
if (err)
goto out_fail;
- err = ext2_add_link(dentry, inode);
+ err = ll_add_link(dentry, inode);
if (err)
goto out_fail;
goto out;
}
-static int obdfs_unlink(struct inode * dir, struct dentry *dentry)
+static int ll_unlink(struct inode * dir, struct dentry *dentry)
{
struct inode * inode = dentry->d_inode;
struct ext2_dir_entry_2 * de;
de = ext2_find_entry (dir, dentry, &page);
if (!de)
goto out;
+
+ err = ll_mdc_unlink(dir, dentry->d_name.name, dentry->d_name.len);
+ if (err)
+ goto out;
+
err = ext2_delete_entry (de, page);
if (err)
}
-static int obdfs_rmdir (struct inode * dir, struct dentry *dentry)
+static int ll_rmdir (struct inode * dir, struct dentry *dentry)
{
struct inode * inode = dentry->d_inode;
int err = -ENOTEMPTY;
if (ext2_empty_dir(inode)) {
- err = obdfs_unlink(dir, dentry);
+ err = ll_unlink(dir, dentry);
if (!err) {
inode->i_size = 0;
ext2_dec_count(inode);
return err;
}
-static int obdfs_rename (struct inode * old_dir, struct dentry * old_dentry,
+static int ll_rename (struct inode * old_dir, struct dentry * old_dentry,
struct inode * new_dir, struct dentry * new_dentry )
{
struct inode * old_inode = old_dentry->d_inode;
struct ext2_dir_entry_2 * old_de;
int err = -ENOENT;
+ err = ll_mdc_rename(old_dir, new_dir, old_dentry, new_dentry);
+ if (err)
+ goto out;
+
old_de = ext2_find_entry (old_dir, old_dentry, &old_page);
if (!old_de)
goto out;
goto out_dir;
}
ext2_inc_count(old_inode);
- err = ext2_add_link(new_dentry, old_inode);
+ err = ll_add_link(new_dentry, old_inode);
if (err) {
ext2_dec_count(old_inode);
goto out_dir;
return err;
}
-struct inode_operations obdfs_dir_inode_operations = {
- create: obdfs_create,
- lookup: obdfs_lookup,
- link: obdfs_link,
- unlink: obdfs_unlink,
- symlink: obdfs_symlink,
- mkdir: obdfs_mkdir,
- rmdir: obdfs_rmdir,
- mknod: obdfs_mknod,
- rename: obdfs_rename,
- setattr: obdfs_setattr
+struct inode_operations ll_dir_inode_operations = {
+ create: ll_create,
+ lookup: ll_lookup,
+ link: ll_link,
+ unlink: ll_unlink,
+ symlink: ll_symlink,
+ mkdir: ll_mkdir,
+ rmdir: ll_rmdir,
+ mknod: ll_mknod,
+ rename: ll_rename,
+ setattr: ll_setattr
};
git://git.whamcloud.com / fs / lustre-release.git / blobdiff