*
* Lustre Light Super operations
*
- * This code is issued under the GNU General Public License.
- * See the file COPYING in this distribution
+ * Copyright (c) 2002, 2003 Cluster File Systems, Inc.
*
- * Copryright (C) 2002 Cluster File Systems, Inc.
+ * This file is part of Lustre, http://www.lustre.org.
+ *
+ * Lustre is free software; you can redistribute it and/or
+ * modify it under the terms of version 2 of the GNU General Public
+ * License as published by the Free Software Foundation.
+ *
+ * Lustre is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with Lustre; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#define DEBUG_SUBSYSTEM S_LLITE
#include <linux/version.h>
#include <linux/lustre_lite.h>
#include <linux/lustre_ha.h>
-#include <linux/obd_lov.h>
#include <linux/lustre_dlm.h>
#include <linux/init.h>
#include <linux/fs.h>
+#include <linux/lprocfs_status.h>
#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0))
+#include <asm/statfs.h>
kmem_cache_t *ll_file_data_slab;
extern struct address_space_operations ll_aops;
extern struct address_space_operations ll_dir_aops;
struct super_operations ll_super_operations;
+/* /proc/lustre/llite root that tracks llite mount points */
+struct proc_dir_entry *proc_lustre_fs_root = NULL;
+/* lproc_llite.c */
+extern int lprocfs_register_mountpoint(struct proc_dir_entry *parent,
+ struct super_block *sb,
+ char *osc, char *mdc);
+
extern int ll_init_inodecache(void);
extern void ll_destroy_inodecache(void);
extern int ll_recover(struct recovd_data *, int);
extern int ll_commitcbd_cleanup(struct ll_sb_info *);
int ll_read_inode2(struct inode *inode, void *opaque);
+extern int ll_proc_namespace(struct super_block* sb, char* osc, char* mdc);
+
static char *ll_read_opt(const char *opt, char *data)
{
char *value;
ENTRY;
CDEBUG(D_SUPER, "option: %s, data %s\n", opt, data);
- if ( strncmp(opt, data, strlen(opt)) )
+ if (strncmp(opt, data, strlen(opt)))
RETURN(NULL);
- if ( (value = strchr(data, '=')) == NULL )
+ if ((value = strchr(data, '=')) == NULL)
RETURN(NULL);
value++;
OBD_ALLOC(retval, strlen(value) + 1);
- if ( !retval ) {
+ if (!retval) {
CERROR("out of memory!\n");
RETURN(NULL);
}
ENTRY;
CDEBUG(D_SUPER, "option: %s, data %s\n", opt, data);
- if ( strncmp(opt, data, strlen(opt)) )
+ if (strncmp(opt, data, strlen(opt)))
RETURN(0);
else
RETURN(fl);
while ((this_char = strsep (&opt_ptr, ",")) != NULL) {
CDEBUG(D_SUPER, "this_char %s\n", this_char);
- if ( (!*ost && (*ost = ll_read_opt("osc", this_char)))||
- (!*mds && (*mds = ll_read_opt("mdc", this_char)))||
- (!(*flags & LL_SBI_NOLCK) && ((*flags) = (*flags) |
- ll_set_opt("nolock", this_char, LL_SBI_NOLCK))) )
+ if ((!*ost && (*ost = ll_read_opt("osc", this_char)))||
+ (!*mds && (*mds = ll_read_opt("mdc", this_char)))||
+ (!(*flags & LL_SBI_NOLCK) &&
+ ((*flags) = (*flags) |
+ ll_set_opt("nolock", this_char, LL_SBI_NOLCK))))
continue;
}
EXIT;
int err;
struct ll_fid rootfid;
struct obd_statfs osfs;
- __u64 last_committed;
- __u64 last_xid;
struct ptlrpc_request *request = NULL;
struct ptlrpc_connection *mdc_conn;
struct ll_read_inode2_cookie lic;
class_uuid_t uuid;
+ struct obd_uuid param_uuid;
ENTRY;
- MOD_INC_USE_COUNT;
OBD_ALLOC(sbi, sizeof(*sbi));
- if (!sbi) {
- MOD_DEC_USE_COUNT;
+ if (!sbi)
RETURN(-ENOMEM);
- }
INIT_LIST_HEAD(&sbi->ll_conn_chain);
- sbi->ll_mount_epoch = 0;
+ INIT_LIST_HEAD(&sbi->ll_orphan_dentry_list);
generate_random_uuid(uuid);
- class_uuid_unparse(uuid, sbi->ll_sb_uuid);
+ class_uuid_unparse(uuid, &sbi->ll_sb_uuid);
sb->s_fs_info = sbi;
GOTO(out_free, sb = NULL);
}
- obd = class_uuid2obd(mdc);
+ strncpy(param_uuid.uuid, mdc, sizeof(param_uuid.uuid));
+ obd = class_uuid2obd(¶m_uuid);
if (!obd) {
CERROR("MDC %s: not setup or attached\n", mdc);
GOTO(out_free, sb = NULL);
}
- err = obd_connect(&sbi->ll_mdc_conn, obd, sbi->ll_sb_uuid,
+ err = obd_connect(&sbi->ll_mdc_conn, obd, &sbi->ll_sb_uuid,
ptlrpc_recovd, ll_recover);
if (err) {
CERROR("cannot connect to %s: rc = %d\n", mdc, err);
GOTO(out_free, sb = NULL);
}
-#warning Peter: is this the right place to raise the connection level?
mdc_conn = sbi2mdc(sbi)->cl_import.imp_connection;
- mdc_conn->c_level = LUSTRE_CONN_FULL;
list_add(&mdc_conn->c_sb_chain, &sbi->ll_conn_chain);
obd = class_uuid2obd(osc);
GOTO(out_mdc, sb = NULL);
}
- err = obd_connect(&sbi->ll_osc_conn, obd, sbi->ll_sb_uuid,
+ err = obd_connect(&sbi->ll_osc_conn, obd, &sbi->ll_sb_uuid,
ptlrpc_recovd, ll_recover);
if (err) {
CERROR("cannot connect to %s: rc = %d\n", osc, err);
GOTO(out_mdc, sb = NULL);
}
- /* XXX: need to store the last_* values somewhere */
- err = mdc_getstatus(&sbi->ll_mdc_conn, &rootfid, &last_committed,
- &last_xid, &request);
- ptlrpc_req_finished(request);
+ err = mdc_getstatus(&sbi->ll_mdc_conn, &rootfid);
if (err) {
CERROR("cannot mds_connect: rc = %d\n", err);
GOTO(out_mdc, sb = NULL);
}
- CDEBUG(D_SUPER, "rootfid %Ld\n", (unsigned long long)rootfid.id);
+ CDEBUG(D_SUPER, "rootfid "LPU64"\n", rootfid.id);
sbi->ll_rootino = rootfid.id;
memset(&osfs, 0, sizeof(osfs));
- request = NULL;
- err = mdc_statfs(&sbi->ll_mdc_conn, &osfs, &request);
- ptlrpc_req_finished(request);
+ err = obd_statfs(&sbi->ll_mdc_conn, &osfs);
sb->s_blocksize = osfs.os_bsize;
sb->s_blocksize_bits = log2(osfs.os_bsize);
sb->s_magic = LL_SUPER_MAGIC;
sb->s_op = &ll_super_operations;
/* make root inode */
- request = NULL;
err = mdc_getattr(&sbi->ll_mdc_conn, sbi->ll_rootino, S_IFDIR,
OBD_MD_FLNOTOBD|OBD_MD_FLBLOCKS, 0, &request);
if (err) {
if (root) {
sb->s_root = d_alloc_root(root);
+ root->i_state &= ~(I_LOCK | I_NEW);
} else {
CERROR("lustre_lite: bad iget4 for root\n");
GOTO(out_cdb, sb = NULL);
}
ptlrpc_req_finished(request);
+ request = NULL;
+
+ if (proc_lustre_fs_root) {
+ err = lprocfs_register_mountpoint(proc_lustre_fs_root, sb,
+ osc, mdc);
+ if (err < 0)
+ CERROR("could not register mount in /proc/lustre");
+ }
out_dev:
if (mdc)
out_free:
OBD_FREE(sbi, sizeof(*sbi));
- MOD_DEC_USE_COUNT;
goto out_dev;
} /* ll_fill_super */
-struct super_block * ll_get_sb(struct file_system_type *fs_type,
- int flags, char *devname, void * data)
+struct super_block * ll_get_sb(struct file_system_type *fs_type,
+ int flags, char *devname, void * data)
{
- return get_sb_nodev(fs_type, flags, data, ll_fill_super);
+ return get_sb_nodev(fs_type, flags, data, ll_fill_super);
}
static void ll_put_super(struct super_block *sb)
{
struct ll_sb_info *sbi = ll_s2sbi(sb);
-
+ struct list_head *tmp, *next;
+ struct ll_fid rootfid;
ENTRY;
+
list_del(&sbi->ll_conn_chain);
ll_commitcbd_cleanup(sbi);
obd_disconnect(&sbi->ll_osc_conn);
+
+ /* NULL request to force sync on the MDS, and get the last_committed
+ * value to flush remaining RPCs from the pending queue on client.
+ *
+ * XXX This should be an mdc_sync() call to sync the whole MDS fs,
+ * which we can call for other reasons as well.
+ */
+ mdc_getstatus(&sbi->ll_mdc_conn, &rootfid);
+
+ if (sbi->ll_proc_root) {
+ lprocfs_remove(sbi->ll_proc_root);
+ sbi->ll_proc_root = NULL;
+ }
+
obd_disconnect(&sbi->ll_mdc_conn);
+
+ spin_lock(&dcache_lock);
+ list_for_each_safe(tmp, next, &sbi->ll_orphan_dentry_list){
+ struct dentry *dentry = list_entry(tmp, struct dentry, d_hash);
+ shrink_dcache_parent(dentry);
+ }
+ spin_unlock(&dcache_lock);
+
OBD_FREE(sbi, sizeof(*sbi));
- MOD_DEC_USE_COUNT;
EXIT;
} /* ll_put_super */
static void ll_clear_inode(struct inode *inode)
{
+ struct ll_sb_info *sbi = ll_i2sbi(inode);
+ struct ll_inode_info *lli = ll_i2info(inode);
+ int rc;
ENTRY;
- if (atomic_read(&inode->i_count) == 0) {
- struct ll_inode_info *lli = ll_i2info(inode);
- struct lov_stripe_md *lsm = lli->lli_smd;
- char *symlink_name = lli->lli_symlink_name;
+#warning "Is there a reason we don't do this in 2.5, but we do in 2.4?"
+#if 0
+ rc = mdc_cancel_unused(&sbi->ll_mdc_conn, inode, LDLM_FL_NO_CALLBACK);
+ if (rc < 0) {
+ CERROR("mdc_cancel_unused: %d\n", rc);
+ /* XXX FIXME do something dramatic */
+ }
- if (lsm) {
- OBD_FREE(lsm, ll_ost_easize(inode->i_sb));
- lli->lli_smd = NULL;
- }
- if (symlink_name) {
- OBD_FREE(symlink_name, strlen(symlink_name) + 1);
- lli->lli_symlink_name = NULL;
+ if (lli->lli_smd) {
+ rc = obd_cancel_unused(&sbi->ll_osc_conn, lli->lli_smd, 0);
+ if (rc < 0) {
+ CERROR("obd_cancel_unused: %d\n", rc);
+ /* XXX FIXME do something dramatic */
}
}
+#endif
+
+ if (atomic_read(&inode->i_count) != 0)
+ CERROR("clearing in-use inode %lu: count = %d\n",
+ inode->i_ino, atomic_read(&inode->i_count));
+
+ if (lli->lli_smd)
+ obd_free_memmd(&sbi->ll_osc_conn, &lli->lli_smd);
+
+ if (lli->lli_symlink_name) {
+ OBD_FREE(lli->lli_symlink_name,strlen(lli->lli_symlink_name)+1);
+ lli->lli_symlink_name = NULL;
+ }
+
EXIT;
}
+#if 0
static void ll_delete_inode(struct inode *inode)
{
ENTRY;
struct obdo *oa;
struct lov_stripe_md *lsm = ll_i2info(inode)->lli_smd;
+ /* mcreate with no open */
if (!lsm)
- GOTO(out, -EINVAL);
+ GOTO(out, 0);
if (lsm->lsm_object_id == 0) {
CERROR("This really happens\n");
GOTO(out, -ENOMEM);
oa->o_id = lsm->lsm_object_id;
- oa->o_easize = ll_mds_easize(inode->i_sb);
oa->o_mode = inode->i_mode;
- oa->o_valid = OBD_MD_FLID | OBD_MD_FLEASIZE | OBD_MD_FLTYPE;
+ oa->o_valid = OBD_MD_FLID | OBD_MD_FLTYPE;
err = obd_destroy(ll_i2obdconn(inode), oa, lsm);
obdo_free(oa);
- CDEBUG(D_SUPER, "obd destroy of objid "LPX64" error %d\n",
- lsm->lsm_object_id, err);
+ if (err)
+ CDEBUG(D_SUPER, "obd destroy objid "LPX64" error %d\n",
+ lsm->lsm_object_id, err);
}
out:
clear_inode(inode);
EXIT;
}
+#endif
/* like inode_setattr, but doesn't mark the inode dirty */
static int ll_attr2inode(struct inode * inode, struct iattr * attr, int trunc)
{
struct ptlrpc_request *request = NULL;
struct ll_sb_info *sbi = ll_i2sbi(inode);
- int err;
+ int err = 0;
ENTRY;
/* change incore inode */
ll_attr2inode(inode, attr, do_trunc);
- err = mdc_setattr(&sbi->ll_mdc_conn, inode, attr, &request);
- if (err)
- CERROR("mdc_setattr fails (%d)\n", err);
-
- ptlrpc_req_finished(request);
+ /* Don't send size changes to MDS to avoid "fast EA" problems, and
+ * also avoid a pointless RPC (we get file size from OST anyways).
+ */
+ attr->ia_valid &= ~ATTR_SIZE;
+ if (attr->ia_valid) {
+ err = mdc_setattr(&sbi->ll_mdc_conn, inode, attr, NULL, 0,
+ &request);
+ if (err)
+ CERROR("mdc_setattr fails: err = %d\n", err);
+
+ ptlrpc_req_finished(request);
+ if (S_ISREG(inode->i_mode) && attr->ia_valid & ATTR_MTIME_SET) {
+ struct lov_stripe_md *lsm = ll_i2info(inode)->lli_smd;
+ struct obdo oa;
+ int err2;
+
+ CDEBUG(D_ERROR, "setting mtime on OST\n");
+ oa.o_id = lsm->lsm_object_id;
+ oa.o_mode = S_IFREG;
+ oa.o_valid = OBD_MD_FLID |OBD_MD_FLTYPE |OBD_MD_FLMTIME;
+ oa.o_mtime = attr->ia_mtime.tv_sec;
+ err2 = obd_setattr(&sbi->ll_osc_conn, &oa, lsm, NULL);
+ if (err2) {
+ CERROR("obd_setattr fails: rc=%d\n", err);
+ if (!err)
+ err = err2;
+ }
+ }
+ }
RETURN(err);
}
static int ll_statfs(struct super_block *sb, struct statfs *sfs)
{
- struct ptlrpc_request *request = NULL;
struct ll_sb_info *sbi = ll_s2sbi(sb);
struct obd_statfs osfs;
int rc;
ENTRY;
memset(sfs, 0, sizeof(*sfs));
- rc = mdc_statfs(&sbi->ll_mdc_conn, &osfs, &request);
+ rc = obd_statfs(&sbi->ll_mdc_conn, &osfs);
statfs_unpack(sfs, &osfs);
- ptlrpc_req_finished(request);
if (rc)
CERROR("mdc_statfs fails: rc = %d\n", rc);
else
RETURN(rc);
}
-void ll_update_inode(struct inode *inode, struct mds_body *body)
+void ll_update_inode(struct inode *inode, struct mds_body *body,
+ struct lov_mds_md *lmm)
{
+ struct ll_inode_info *lli = ll_i2info(inode);
+
+ if (lmm != NULL)
+ obd_unpackmd(ll_i2obdconn(inode), &lli->lli_smd, lmm);
+
if (body->valid & OBD_MD_FLID)
inode->i_ino = body->ino;
if (body->valid & OBD_MD_FLATIME)
- inode->i_atime = body->atime;
+ inode->i_atime.tv_sec = body->atime;
if (body->valid & OBD_MD_FLMTIME)
- inode->i_mtime = body->mtime;
+ inode->i_mtime.tv_sec = body->mtime;
if (body->valid & OBD_MD_FLCTIME)
- inode->i_ctime = body->ctime;
+ inode->i_ctime.tv_sec = body->ctime;
if (body->valid & OBD_MD_FLMODE)
inode->i_mode = (inode->i_mode & S_IFMT)|(body->mode & ~S_IFMT);
if (body->valid & OBD_MD_FLTYPE)
inode->i_rdev = to_kdev_t(body->rdev);
if (body->valid & OBD_MD_FLSIZE)
inode->i_size = body->size;
+ if (body->valid & OBD_MD_FLBLOCKS)
+ inode->i_blocks = body->blocks;
}
int ll_read_inode2(struct inode *inode, void *opaque)
struct ll_read_inode2_cookie *lic = opaque;
struct mds_body *body = lic->lic_body;
struct ll_inode_info *lli = ll_i2info(inode);
+ int rc = 0;
ENTRY;
-
+
sema_init(&lli->lli_open_sem, 1);
- lli->lli_mount_epoch = ll_i2sbi(inode)->ll_mount_epoch;
-
- /* core attributes first */
- ll_update_inode(inode, body);
+ lli->flags = 0;
+ init_MUTEX(&lli->lli_getattr_sem);
+ /* these are 2.4 only, but putting them here for consistency.. */
+ spin_lock_init(&lli->lli_read_extent_lock);
+ INIT_LIST_HEAD(&lli->lli_read_extents);
- //if (body->valid & OBD_MD_FLEASIZE)
- if (lic && lic->lic_lmm) {
- struct lov_mds_md *lmm = lic->lic_lmm;
- int size;
+ LASSERT(!lli->lli_smd);
- if (lmm->lmm_easize != ll_mds_easize(inode->i_sb)) {
- CERROR("Striping metadata size error %ld\n",
- inode->i_ino);
- LBUG();
- }
- size = ll_ost_easize(inode->i_sb);
- OBD_ALLOC(lli->lli_smd, size);
- if (!lli->lli_smd) {
- CERROR("No memory for %d\n", size);
- LBUG();
- }
- lov_unpackmd(lli->lli_smd, lmm);
- } else {
- lli->lli_smd = NULL;
- }
+ /* core attributes first */
+ ll_update_inode(inode, body, lic ? lic->lic_lmm : NULL);
/* Get the authoritative file size */
- if (lli->lli_smd && (inode->i_mode & S_IFREG)) {
- int rc;
-
- rc = ll_file_size(inode, lli->lli_smd);
- if (rc) {
- CERROR("ll_file_size: %d\n", rc);
- /* FIXME: need to somehow prevent inode creation */
- LBUG();
+ if (lli->lli_smd && S_ISREG(inode->i_mode)) {
+ struct ll_file_data *fd = file->private_data;
+ struct ldlm_extent extent = {0, OBD_OBJECT_EOF};
+ struct lustre_handle lockh = {0, 0};
+
+ LASSERT(lli->lli_smd->lsm_object_id != 0);
+
+ rc = ll_extent_lock(fd, inode, lsm, LCK_PR, &extent, &lockh);
+ if (err != ELDLM_OK && err != ELDLM_MATCHED) {
+ ll_clear_inode(inode);
+ make_bad_inode(inode);
+ } else {
+ l_extent_unlock(fd, inode, lsm, LCK_PR, &extent,
+ &lockh);
}
}
inode->i_op = &ll_fast_symlink_inode_operations;
EXIT;
} else {
- init_special_inode(inode, inode->i_mode,
+ init_special_inode(inode, inode->i_mode,
kdev_t_to_nr(inode->i_rdev));
EXIT;
}
- return 0;
+
+ return rc;
}
static inline void invalidate_request_list(struct list_head *req_list)
{
struct list_head *tmp, *n;
list_for_each_safe(tmp, n, req_list) {
- struct ptlrpc_request *req =
+ struct ptlrpc_request *req =
list_entry(tmp, struct ptlrpc_request, rq_list);
CERROR("invalidating req xid %d op %d to %s:%d\n",
(unsigned long long)req->rq_xid, req->rq_reqmsg->opc,
struct list_head *ctmp;
ENTRY;
-
+
list_for_each(ctmp, &sbi->ll_conn_chain) {
struct ptlrpc_connection *conn;
conn = list_entry(ctmp, struct ptlrpc_connection, c_sb_chain);
spin_lock(&conn->c_lock);
conn->c_flags |= CONN_INVALID;
- invalidate_request_list(&conn->c_sending_head);
+ /*invalidate_request_list(&conn->c_sending_head);*/
invalidate_request_list(&conn->c_delayed_head);
spin_unlock(&conn->c_lock);
}
static struct inode *ll_alloc_inode(struct super_block *sb)
{
- struct ll_inode_info *lli;
- lli = kmem_cache_alloc(ll_inode_cachep, SLAB_KERNEL);
- if (!lli)
- return NULL;
+ struct ll_inode_info *lli;
+ lli = kmem_cache_alloc(ll_inode_cachep, SLAB_KERNEL);
+ if (!lli)
+ return NULL;
- memset(lli, 0, sizeof(*lli));
+ memset(lli, 0, (char *)&lli->lli_vfs_inode - (char *)lli);
sema_init(&lli->lli_open_sem, 1);
- lli->lli_mount_epoch = ll_i2sbi(&lli->lli_vfs_inode)->ll_mount_epoch;
+ init_MUTEX(&lli->lli_size_valid_sem);
- return &lli->lli_vfs_inode;
+ return &lli->lli_vfs_inode;
}
static void ll_destroy_inode(struct inode *inode)
{
- kmem_cache_free(ll_inode_cachep, LL_I(inode));
+ kmem_cache_free(ll_inode_cachep, ll_i2info(inode));
}
static void init_once(void * foo, kmem_cache_t * cachep, unsigned long flags)
{
- struct ll_inode_info *lli = foo;
+ struct ll_inode_info *lli = foo;
- if ((flags & (SLAB_CTOR_VERIFY|SLAB_CTOR_CONSTRUCTOR)) ==
- SLAB_CTOR_CONSTRUCTOR)
- inode_init_once(&lli->lli_vfs_inode);
+ if ((flags & (SLAB_CTOR_VERIFY|SLAB_CTOR_CONSTRUCTOR)) ==
+ SLAB_CTOR_CONSTRUCTOR)
+ inode_init_once(&lli->lli_vfs_inode);
}
-
+
int ll_init_inodecache(void)
{
- ll_inode_cachep = kmem_cache_create("lustre_inode_cache",
- sizeof(struct ll_inode_info),
- 0, SLAB_HWCACHE_ALIGN,
- init_once, NULL);
- if (ll_inode_cachep == NULL)
- return -ENOMEM;
- return 0;
+ ll_inode_cachep = kmem_cache_create("lustre_inode_cache",
+ sizeof(struct ll_inode_info),
+ 0, SLAB_HWCACHE_ALIGN,
+ init_once, NULL);
+ if (ll_inode_cachep == NULL)
+ return -ENOMEM;
+ return 0;
}
void ll_destroy_inodecache(void)
{
- if (kmem_cache_destroy(ll_inode_cachep))
- CERROR("ll_inode_cache: not all structures were freed\n");
+ if (kmem_cache_destroy(ll_inode_cachep))
+ CERROR("ll_inode_cache: not all structures were freed\n");
}
alloc_inode: ll_alloc_inode,
destroy_inode: ll_destroy_inode,
clear_inode: ll_clear_inode,
- delete_inode: ll_delete_inode,
+// delete_inode: ll_delete_inode,
put_super: ll_put_super,
statfs: ll_statfs,
umount_begin: ll_umount_begin
};
+
struct file_system_type lustre_lite_fs_type = {
.owner = THIS_MODULE,
- .name = "lustre_lite",
+ .name = "lustre_lite",
.get_sb = ll_get_sb,
- .kill_sb = kill_litter_super,
+ .kill_sb = kill_anon_super,
};
static int __init init_lustre_lite(void)
{
int rc;
- printk(KERN_INFO "Lustre Lite 0.5.14, info@clusterfs.com\n");
+ printk(KERN_INFO "Lustre Lite Client File System; "
+ "info@clusterfs.com\n");
rc = ll_init_inodecache();
- if (rc)
+ if (rc)
return -ENOMEM;
ll_file_data_slab = kmem_cache_create("ll_file_data",
sizeof(struct ll_file_data), 0,
SLAB_HWCACHE_ALIGN, NULL, NULL);
- if (ll_file_data_slab == NULL) {
+ if (ll_file_data_slab == NULL) {
ll_destroy_inodecache();
return -ENOMEM;
}
+
+ proc_lustre_fs_root = proc_lustre_root ?
+ proc_mkdir("llite", proc_lustre_root) : NULL;
+
return register_filesystem(&lustre_lite_fs_type);
}
unregister_filesystem(&lustre_lite_fs_type);
ll_destroy_inodecache();
kmem_cache_destroy(ll_file_data_slab);
+ if (proc_lustre_fs_root) {
+ lprocfs_remove(proc_lustre_fs_root);
+ proc_lustre_fs_root = NULL;
+ }
}
MODULE_AUTHOR("Cluster File Systems, Inc. <info@clusterfs.com>");
-MODULE_DESCRIPTION("Lustre Lite Client File System v1.0");
+MODULE_DESCRIPTION("Lustre Lite Client File System");
MODULE_LICENSE("GPL");
module_init(init_lustre_lite);
git://git.whamcloud.com / fs / lustre-release.git / blobdiff