+++ /dev/null
---- linux-2.6.12.6.orig/fs/exec.c
-+++ linux-2.6.12.6/fs/exec.c
-@@ -122,9 +122,10 @@
- struct file * file;
- struct nameidata nd;
- int error;
-+ intent_init(&nd.intent, IT_OPEN);
-
-- nd.intent.open.flags = FMODE_READ;
-- error = __user_walk(library, LOOKUP_FOLLOW|LOOKUP_OPEN, &nd);
-+ nd.intent.it_flags = FMODE_READ|FMODE_EXEC;
-+ error = __user_walk_it(library, LOOKUP_FOLLOW|LOOKUP_OPEN, &nd);
- if (error)
- goto out;
-
-@@ -136,7 +137,7 @@
- if (error)
- goto exit;
-
-- file = dentry_open(nd.dentry, nd.mnt, O_RDONLY);
-+ file = dentry_open_it(nd.dentry, nd.mnt, O_RDONLY, &nd.intent);
- error = PTR_ERR(file);
- if (IS_ERR(file))
- goto out;
-@@ -492,8 +493,9 @@
- int err;
- struct file *file;
-
-- nd.intent.open.flags = FMODE_READ;
-- err = path_lookup(name, LOOKUP_FOLLOW|LOOKUP_OPEN, &nd);
-+ intent_init(&nd.intent, IT_OPEN);
-+ nd.intent.it_flags = FMODE_READ|FMODE_EXEC;
-+ err = path_lookup(name, LOOKUP_FOLLOW, &nd);
- file = ERR_PTR(err);
-
- if (!err) {
-@@ -506,7 +508,7 @@
- err = -EACCES;
- file = ERR_PTR(err);
- if (!err) {
-- file = dentry_open(nd.dentry, nd.mnt, O_RDONLY);
-+ file = dentry_open_it(nd.dentry, nd.mnt, O_RDONLY, &nd.intent);
- if (!IS_ERR(file)) {
- err = deny_write_access(file);
- if (err) {
---- linux-2.6.12.6.orig/fs/namei.c
-+++ linux-2.6.12.6/fs/namei.c
-@@ -301,8 +301,19 @@
- return 0;
- }
-
-+void intent_release(struct lookup_intent *it)
-+{
-+ if (!it)
-+ return;
-+ if (it->it_magic != INTENT_MAGIC)
-+ return;
-+ if (it->it_op_release)
-+ it->it_op_release(it);
-+}
-+
- void path_release(struct nameidata *nd)
- {
-+ intent_release(&nd->intent);
- dput(nd->dentry);
- mntput(nd->mnt);
- }
-@@ -392,8 +403,11 @@
- {
- struct dentry * result;
- struct inode *dir = parent->d_inode;
-+ int counter = 0;
-
- down(&dir->i_sem);
-+again:
-+ counter++;
- /*
- * First re-do the cached lookup just in case it was created
- * while we waited for the directory semaphore..
-@@ -427,13 +441,16 @@
- * Uhhuh! Nasty case: the cache was re-populated while
- * we waited on the semaphore. Need to revalidate.
- */
-- up(&dir->i_sem);
- if (result->d_op && result->d_op->d_revalidate) {
- if (!result->d_op->d_revalidate(result, nd) && !d_invalidate(result)) {
- dput(result);
-- result = ERR_PTR(-ENOENT);
-+ if (counter > 10)
-+ result = ERR_PTR(-ESTALE);
-+ if (!IS_ERR(result))
-+ goto again;
- }
- }
-+ up(&dir->i_sem);
- return result;
- }
-
-@@ -462,6 +479,7 @@
- {
- int res = 0;
- char *name;
-+
- if (IS_ERR(link))
- goto fail;
-
-@@ -471,6 +489,7 @@
- /* weird __emul_prefix() stuff did it */
- goto out;
- }
-+ intent_reset_fs_part(&nd->intent);
- res = link_path_walk(link, nd);
- out:
- if (nd->depth || res || nd->last_type!=LAST_NORM)
-@@ -703,6 +722,33 @@
- return PTR_ERR(dentry);
- }
-
-+static int revalidate_special(struct nameidata *nd)
-+{
-+ struct dentry *dentry = nd->dentry;
-+ int err, counter = 0;
-+
-+ revalidate_again:
-+ if (!dentry->d_op || !dentry->d_op->d_revalidate)
-+ return 0;
-+ if (!dentry->d_op->d_revalidate(dentry, nd)) {
-+ struct dentry *new;
-+ if ((err = permission(dentry->d_parent->d_inode, MAY_EXEC, nd)))
-+ return err;
-+ new = real_lookup(dentry->d_parent, &dentry->d_name, nd);
-+ if (IS_ERR(new))
-+ return PTR_ERR(new);
-+ d_invalidate(dentry);
-+ dput(dentry);
-+ nd->dentry = dentry = new;
-+ counter++;
-+ if (counter < 10)
-+ goto revalidate_again;
-+ //printk("excessive revalidate_it loops\n");
-+ return -ESTALE;
-+ }
-+ return 0;
-+}
-+
- /*
- * Name resolution.
- * This is the basic name resolution function, turning a pathname into
-@@ -800,7 +846,11 @@
- goto out_dput;
-
- if (inode->i_op->follow_link) {
-+ int save_flags = nd->flags;
-+ nd->flags |= LOOKUP_LINK_NOTLAST;
- err = do_follow_link(&next, nd);
-+ if (!(save_flags & LOOKUP_LINK_NOTLAST))
-+ nd->flags &= ~LOOKUP_LINK_NOTLAST;
- if (err)
- goto return_err;
- err = -ENOENT;
-@@ -839,6 +889,23 @@
- inode = nd->dentry->d_inode;
- /* fallthrough */
- case 1:
-+ nd->flags |= LOOKUP_LAST;
-+ err = revalidate_special(nd);
-+ nd->flags &= ~LOOKUP_LAST;
-+ if (!nd->dentry->d_inode)
-+ err = -ENOENT;
-+ if (err) {
-+ path_release(nd);
-+ goto return_err;
-+ }
-+ if (lookup_flags & LOOKUP_DIRECTORY) {
-+ err = -ENOTDIR;
-+ if(!nd->dentry->d_inode->i_op ||
-+ !nd->dentry->d_inode->i_op->lookup) {
-+ path_release(nd);
-+ goto return_err;
-+ }
-+ }
- goto return_reval;
- }
- if (nd->dentry->d_op && nd->dentry->d_op->d_hash) {
-@@ -846,7 +913,9 @@
- if (err < 0)
- break;
- }
-+ nd->flags |= LOOKUP_LAST;
- err = do_lookup(nd, &this, &next);
-+ nd->flags &= ~LOOKUP_LAST;
- if (err)
- break;
- inode = next.dentry->d_inode;
-@@ -1097,7 +1166,7 @@
- }
-
- /* SMP-safe */
--struct dentry * lookup_one_len(const char * name, struct dentry * base, int len)
-+struct dentry * lookup_one_len_it(const char * name, struct dentry * base, int len, struct nameidata *nd)
- {
- unsigned long hash;
- struct qstr this;
-@@ -1117,11 +1186,16 @@
- }
- this.hash = end_name_hash(hash);
-
-- return lookup_hash(&this, base);
-+ return __lookup_hash(&this, base, nd);
- access:
- return ERR_PTR(-EACCES);
- }
-
-+struct dentry * lookup_one_len(const char * name, struct dentry * base, int len)
-+{
-+ return lookup_one_len_it(name, base, len, NULL);
-+}
-+
- /*
- * namei()
- *
-@@ -1133,7 +1207,7 @@
- * that namei follows links, while lnamei does not.
- * SMP-safe
- */
--int fastcall __user_walk(const char __user *name, unsigned flags, struct nameidata *nd)
-+int fastcall __user_walk_it(const char __user *name, unsigned flags, struct nameidata *nd)
- {
- char *tmp = getname(name);
- int err = PTR_ERR(tmp);
-@@ -1145,6 +1219,12 @@
- return err;
- }
-
-+int fastcall __user_walk(const char __user *name, unsigned flags, struct nameidata *nd)
-+{
-+ intent_init(&nd->intent, IT_LOOKUP);
-+ return __user_walk_it(name, flags, nd);
-+}
-+
- /*
- * It's inline, so penalty for filesystems that don't use sticky bit is
- * minimal.
-@@ -1426,8 +1506,8 @@
- acc_mode |= MAY_APPEND;
-
- /* Fill in the open() intent data */
-- nd->intent.open.flags = flag;
-- nd->intent.open.create_mode = mode;
-+ nd->intent.it_flags = flag;
-+ nd->intent.it_create_mode = mode;
-
- /*
- * The simplest case - just a plain lookup.
-@@ -1442,6 +1522,7 @@
- /*
- * Create - we need to know the parent.
- */
-+ nd->intent.it_op |= IT_CREAT;
- error = path_lookup(pathname, LOOKUP_PARENT|LOOKUP_OPEN|LOOKUP_CREATE, nd);
- if (error)
- return error;
-@@ -1458,7 +1539,9 @@
- dir = nd->dentry;
- nd->flags &= ~LOOKUP_PARENT;
- down(&dir->d_inode->i_sem);
-+ nd->flags |= LOOKUP_LAST;
- path.dentry = __lookup_hash(&nd->last, nd->dentry, nd);
-+ nd->flags &= ~LOOKUP_LAST;
- path.mnt = nd->mnt;
-
- do_last:
-@@ -1564,7 +1647,9 @@
- }
- dir = nd->dentry;
- down(&dir->d_inode->i_sem);
-+ nd->flags |= LOOKUP_LAST;
- path.dentry = __lookup_hash(&nd->last, nd->dentry, nd);
-+ nd->flags &= ~LOOKUP_LAST;
- path.mnt = nd->mnt;
- putname(nd->last.name);
- goto do_last;
---- linux-2.6.12.6.orig/fs/namespace.c
-+++ linux-2.6.12.6/fs/namespace.c
-@@ -62,6 +62,7 @@
- INIT_LIST_HEAD(&mnt->mnt_mounts);
- INIT_LIST_HEAD(&mnt->mnt_list);
- INIT_LIST_HEAD(&mnt->mnt_fslink);
-+ INIT_LIST_HEAD(&mnt->mnt_lustre_list);
- if (name) {
- int size = strlen(name)+1;
- char *newname = kmalloc(size, GFP_KERNEL);
-@@ -113,6 +114,7 @@
-
- static void detach_mnt(struct vfsmount *mnt, struct nameidata *old_nd)
- {
-+ memset(old_nd, 0, sizeof(*old_nd));
- old_nd->dentry = mnt->mnt_mountpoint;
- old_nd->mnt = mnt->mnt_parent;
- mnt->mnt_parent = mnt;
-@@ -176,6 +178,9 @@
- {
- struct super_block *sb = mnt->mnt_sb;
- dput(mnt->mnt_root);
-+ spin_lock(&dcache_lock);
-+ list_del(&mnt->mnt_lustre_list);
-+ spin_unlock(&dcache_lock);
- free_vfsmnt(mnt);
- deactivate_super(sb);
- }
-@@ -402,6 +407,8 @@
- */
-
- lock_kernel();
-+ if (sb->s_op->umount_lustre)
-+ sb->s_op->umount_lustre(sb);
- if( (flags&MNT_FORCE) && sb->s_op->umount_begin)
- sb->s_op->umount_begin(sb);
- unlock_kernel();
-@@ -627,6 +634,7 @@
- return err;
- if (!old_name || !*old_name)
- return -EINVAL;
-+ intent_init(&old_nd.intent, IT_LOOKUP);
- err = path_lookup(old_name, LOOKUP_FOLLOW, &old_nd);
- if (err)
- return err;
-@@ -701,6 +709,7 @@
- return -EPERM;
- if (!old_name || !*old_name)
- return -EINVAL;
-+ intent_init(&old_nd.intent, IT_LOOKUP);
- err = path_lookup(old_name, LOOKUP_FOLLOW, &old_nd);
- if (err)
- return err;
-@@ -1012,6 +1021,7 @@
- int retval = 0;
- int mnt_flags = 0;
-
-+ intent_init(&nd.intent, IT_LOOKUP);
- /* Discard magic */
- if ((flags & MS_MGC_MSK) == MS_MGC_VAL)
- flags &= ~MS_MGC_MSK;
---- linux-2.6.12.6.orig/fs/open.c
-+++ linux-2.6.12.6/fs/open.c
-@@ -215,12 +215,12 @@
- struct nameidata nd;
- struct inode * inode;
- int error;
--
-+ intent_init(&nd.intent, IT_GETATTR);
- error = -EINVAL;
- if (length < 0) /* sorry, but loff_t says... */
- goto out;
-
-- error = user_path_walk(path, &nd);
-+ error = user_path_walk_it(path, &nd);
- if (error)
- goto out;
- inode = nd.dentry->d_inode;
-@@ -474,6 +474,7 @@
- int old_fsuid, old_fsgid;
- kernel_cap_t old_cap;
- int res;
-+ intent_init(&nd.intent, IT_GETATTR);
-
- if (mode & ~S_IRWXO) /* where's F_OK, X_OK, W_OK, R_OK? */
- return -EINVAL;
-@@ -498,13 +499,14 @@
- else
- current->cap_effective = current->cap_permitted;
-
-- res = __user_walk(filename, LOOKUP_FOLLOW|LOOKUP_ACCESS, &nd);
-+ res = __user_walk_it(filename, LOOKUP_FOLLOW|LOOKUP_ACCESS, &nd);
- if (!res) {
- res = permission(nd.dentry->d_inode, mode, &nd);
- /* SuS v2 requires we report a read only fs too */
- if(!res && (mode & S_IWOTH) && IS_RDONLY(nd.dentry->d_inode)
- && !special_file(nd.dentry->d_inode->i_mode))
- res = -EROFS;
-+
- path_release(&nd);
- }
-
-@@ -519,8 +521,9 @@
- {
- struct nameidata nd;
- int error;
-+ intent_init(&nd.intent, IT_GETATTR);
-
-- error = __user_walk(filename, LOOKUP_FOLLOW|LOOKUP_DIRECTORY, &nd);
-+ error = __user_walk_it(filename, LOOKUP_FOLLOW|LOOKUP_DIRECTORY, &nd);
- if (error)
- goto out;
-
-@@ -570,8 +573,9 @@
- {
- struct nameidata nd;
- int error;
-+ intent_init(&nd.intent, IT_GETATTR);
-
-- error = __user_walk(filename, LOOKUP_FOLLOW | LOOKUP_DIRECTORY | LOOKUP_NOALT, &nd);
-+ error = __user_walk_it(filename, LOOKUP_FOLLOW | LOOKUP_DIRECTORY | LOOKUP_NOALT, &nd);
- if (error)
- goto out;
-
-@@ -750,27 +754,8 @@
- * for the internal routines (ie open_namei()/follow_link() etc). 00 is
- * used by symlinks.
- */
--struct file *filp_open(const char * filename, int flags, int mode)
--{
-- int namei_flags, error;
-- struct nameidata nd;
--
-- namei_flags = flags;
-- if ((namei_flags+1) & O_ACCMODE)
-- namei_flags++;
-- if (namei_flags & O_TRUNC)
-- namei_flags |= 2;
--
-- error = open_namei(filename, namei_flags, mode, &nd);
-- if (!error)
-- return dentry_open(nd.dentry, nd.mnt, flags);
--
-- return ERR_PTR(error);
--}
--
--EXPORT_SYMBOL(filp_open);
--
--struct file *dentry_open(struct dentry *dentry, struct vfsmount *mnt, int flags)
-+struct file *dentry_open_it(struct dentry *dentry, struct vfsmount *mnt, int flags,
-+ struct lookup_intent *it)
- {
- struct file * f;
- struct inode *inode;
-@@ -782,6 +767,7 @@
- goto cleanup_dentry;
- f->f_flags = flags;
- f->f_mode = ((flags+1) & O_ACCMODE) | FMODE_LSEEK | FMODE_PREAD | FMODE_PWRITE;
-+ f->f_it = it;
- inode = dentry->d_inode;
- if (f->f_mode & FMODE_WRITE) {
- error = get_write_access(inode);
-@@ -800,6 +786,7 @@
- error = f->f_op->open(inode,f);
- if (error)
- goto cleanup_all;
-+ intent_release(it);
- }
- f->f_flags &= ~(O_CREAT | O_EXCL | O_NOCTTY | O_TRUNC);
-
-@@ -825,6 +812,7 @@
- cleanup_file:
- put_filp(f);
- cleanup_dentry:
-+ intent_release(it);
- dput(dentry);
- mntput(mnt);
- return ERR_PTR(error);
-@@ -832,6 +820,36 @@
-
- EXPORT_SYMBOL(dentry_open);
-
-+struct file *filp_open(const char * filename, int flags, int mode)
-+{
-+ int namei_flags, error;
-+ struct file * temp_filp;
-+ struct nameidata nd;
-+ intent_init(&nd.intent, IT_OPEN);
-+
-+ namei_flags = flags;
-+ if ((namei_flags+1) & O_ACCMODE)
-+ namei_flags++;
-+ if (namei_flags & O_TRUNC)
-+ namei_flags |= 2;
-+
-+ error = open_namei(filename, namei_flags, mode, &nd);
-+ if (!error) {
-+ temp_filp = dentry_open_it(nd.dentry, nd.mnt, flags, &nd.intent);
-+ return temp_filp;
-+ }
-+ return ERR_PTR(error);
-+}
-+
-+
-+struct file *dentry_open(struct dentry *dentry, struct vfsmount *mnt, int flags)
-+{
-+ struct lookup_intent it;
-+ intent_init(&it, IT_LOOKUP);
-+
-+ return dentry_open_it(dentry, mnt, flags, &it);
-+}
-+
- /*
- * Find an empty file descriptor entry, and mark it busy.
- */
---- linux-2.6.12.6.orig/fs/stat.c
-+++ linux-2.6.12.6/fs/stat.c
-@@ -38,7 +38,7 @@
-
- EXPORT_SYMBOL(generic_fillattr);
-
--int vfs_getattr(struct vfsmount *mnt, struct dentry *dentry, struct kstat *stat)
-+int vfs_getattr_it(struct vfsmount *mnt, struct dentry *dentry, struct lookup_intent *it, struct kstat *stat)
- {
- struct inode *inode = dentry->d_inode;
- int retval;
-@@ -47,6 +47,8 @@
- if (retval)
- return retval;
-
-+ if (inode->i_op->getattr_it)
-+ return inode->i_op->getattr_it(mnt, dentry, it, stat);
- if (inode->i_op->getattr)
- return inode->i_op->getattr(mnt, dentry, stat);
-
-@@ -63,14 +65,20 @@
-
- EXPORT_SYMBOL(vfs_getattr);
-
-+int vfs_getattr(struct vfsmount *mnt, struct dentry *dentry, struct kstat *stat)
-+{
-+ return vfs_getattr_it(mnt, dentry, NULL, stat);
-+}
-+
- int vfs_stat(char __user *name, struct kstat *stat)
- {
- struct nameidata nd;
- int error;
-+ intent_init(&nd.intent, IT_GETATTR);
-
-- error = user_path_walk(name, &nd);
-+ error = user_path_walk_it(name, &nd);
- if (!error) {
-- error = vfs_getattr(nd.mnt, nd.dentry, stat);
-+ error = vfs_getattr_it(nd.mnt, nd.dentry, &nd.intent, stat);
- path_release(&nd);
- }
- return error;
-@@ -82,10 +90,11 @@
- {
- struct nameidata nd;
- int error;
-+ intent_init(&nd.intent, IT_GETATTR);
-
-- error = user_path_walk_link(name, &nd);
-+ error = user_path_walk_link_it(name, &nd);
- if (!error) {
-- error = vfs_getattr(nd.mnt, nd.dentry, stat);
-+ error = vfs_getattr_it(nd.mnt, nd.dentry, &nd.intent, stat);
- path_release(&nd);
- }
- return error;
-@@ -97,9 +106,12 @@
- {
- struct file *f = fget(fd);
- int error = -EBADF;
-+ struct nameidata nd;
-+ intent_init(&nd.intent, IT_GETATTR);
-
- if (f) {
-- error = vfs_getattr(f->f_vfsmnt, f->f_dentry, stat);
-+ error = vfs_getattr_it(f->f_vfsmnt, f->f_dentry, &nd.intent, stat);
-+ intent_release(&nd.intent);
- fput(f);
- }
- return error;
---- linux-2.6.12.6.orig/fs/inode.c
-+++ linux-2.6.12.6/fs/inode.c
-@@ -230,6 +230,7 @@
- inodes_stat.nr_unused--;
- }
-
-+EXPORT_SYMBOL(__iget);
- /**
- * clear_inode - clear an inode
- * @inode: inode to clear
---- linux-2.6.12.6.orig/include/linux/dcache.h
-+++ linux-2.6.12.6/include/linux/dcache.h
-@@ -4,6 +4,7 @@
- #ifdef __KERNEL__
-
- #include <asm/atomic.h>
-+#include <linux/string.h>
- #include <linux/list.h>
- #include <linux/spinlock.h>
- #include <linux/cache.h>
-@@ -37,6 +38,8 @@
- const unsigned char *name;
- };
-
-+#include <linux/namei.h>
-+
- struct dentry_stat_t {
- int nr_dentry;
- int nr_unused;
---- linux-2.6.12.6.orig/include/linux/fs.h
-+++ linux-2.6.12.6/include/linux/fs.h
-@@ -58,6 +58,7 @@
-
- #define FMODE_READ 1
- #define FMODE_WRITE 2
-+#define FMODE_EXEC 4
-
- /* Internal kernel extensions */
- #define FMODE_LSEEK 4
-@@ -260,6 +261,8 @@
- #define ATTR_ATTR_FLAG 1024
- #define ATTR_KILL_SUID 2048
- #define ATTR_KILL_SGID 4096
-+#define ATTR_RAW 8192 /* file system, not vfs will massage attrs */
-+#define ATTR_FROM_OPEN 16384 /* called from open path, ie O_TRUNC */
-
- /*
- * This is the Inode Attributes structure, used for notify_change(). It
-@@ -463,6 +466,7 @@
- struct block_device *i_bdev;
- struct cdev *i_cdev;
- int i_cindex;
-+ void *i_filterdata;
-
- __u32 i_generation;
-
-@@ -600,6 +604,7 @@
- spinlock_t f_ep_lock;
- #endif /* #ifdef CONFIG_EPOLL */
- struct address_space *f_mapping;
-+ struct lookup_intent *f_it;
- };
- extern spinlock_t files_lock;
- #define file_list_lock() spin_lock(&files_lock);
-@@ -968,7 +973,9 @@
- void (*truncate) (struct inode *);
- int (*permission) (struct inode *, int, struct nameidata *);
- int (*setattr) (struct dentry *, struct iattr *);
-+ int (*setattr_raw) (struct inode *, struct iattr *);
- int (*getattr) (struct vfsmount *mnt, struct dentry *, struct kstat *);
-+ int (*getattr_it) (struct vfsmount *, struct dentry *, struct lookup_intent *, struct kstat *);
- int (*setxattr) (struct dentry *, const char *,const void *,size_t,int);
- ssize_t (*getxattr) (struct dentry *, const char *, void *, size_t);
- ssize_t (*listxattr) (struct dentry *, char *, size_t);
-@@ -1008,6 +1015,7 @@
- int (*remount_fs) (struct super_block *, int *, char *);
- void (*clear_inode) (struct inode *);
- void (*umount_begin) (struct super_block *);
-+ void (*umount_lustre) (struct super_block *);
-
- int (*show_options)(struct seq_file *, struct vfsmount *);
-
-@@ -1210,6 +1218,7 @@
- extern struct vfsmount *kern_mount(struct file_system_type *);
- extern int may_umount_tree(struct vfsmount *);
- extern int may_umount(struct vfsmount *);
-+struct vfsmount *do_kern_mount(const char *type, int flags, const char *name, void *data);
- extern long do_mount(char *, char *, char *, unsigned long, void *);
-
- extern int vfs_statfs(struct super_block *, struct kstatfs *);
-@@ -1262,6 +1271,7 @@
- extern int do_truncate(struct dentry *, loff_t start);
- extern struct file *filp_open(const char *, int, int);
- extern struct file * dentry_open(struct dentry *, struct vfsmount *, int);
-+extern struct file * dentry_open_it(struct dentry *, struct vfsmount *, int, struct lookup_intent *);
- extern int filp_close(struct file *, fl_owner_t id);
- extern char * getname(const char __user *);
-
---- linux-2.6.12.6.orig/include/linux/namei.h
-+++ linux-2.6.12.6/include/linux/namei.h
-@@ -2,14 +2,55 @@
- #define _LINUX_NAMEI_H
-
- #include <linux/linkage.h>
-+#include <linux/string.h>
-
- struct vfsmount;
-+struct nameidata;
-
--struct open_intent {
-- int flags;
-- int create_mode;
-+/* intent opcodes */
-+#define IT_OPEN (1)
-+#define IT_CREAT (1<<1)
-+#define IT_READDIR (1<<2)
-+#define IT_GETATTR (1<<3)
-+#define IT_LOOKUP (1<<4)
-+#define IT_UNLINK (1<<5)
-+#define IT_TRUNC (1<<6)
-+#define IT_GETXATTR (1<<7)
-+
-+struct lustre_intent_data {
-+ int it_disposition;
-+ int it_status;
-+ __u64 it_lock_handle;
-+ void *it_data;
-+ int it_lock_mode;
- };
-
-+#define INTENT_MAGIC 0x19620323
-+struct lookup_intent {
-+ int it_magic;
-+ void (*it_op_release)(struct lookup_intent *);
-+ int it_op;
-+ int it_flags;
-+ int it_create_mode;
-+ union {
-+ struct lustre_intent_data lustre;
-+ } d;
-+};
-+
-+static inline void intent_reset_fs_part(struct lookup_intent *it)
-+{
-+ memset(&it->d, 0, sizeof(it->d));
-+ it->it_magic = INTENT_MAGIC;
-+ it->it_op_release = NULL;
-+}
-+
-+static inline void intent_init(struct lookup_intent *it, int op)
-+{
-+ memset(it, 0, sizeof(*it));
-+ it->it_magic = INTENT_MAGIC;
-+ it->it_op = op;
-+}
-+
- enum { MAX_NESTED_LINKS = 5 };
-
- struct nameidata {
-@@ -21,10 +62,7 @@
- unsigned depth;
- char *saved_names[MAX_NESTED_LINKS + 1];
-
-- /* Intent data */
-- union {
-- struct open_intent open;
-- } intent;
-+ struct lookup_intent intent;
- };
-
- /*
-@@ -47,6 +85,8 @@
- #define LOOKUP_PARENT 16
- #define LOOKUP_NOALT 32
- #define LOOKUP_REVAL 64
-+#define LOOKUP_LAST (0x1000)
-+#define LOOKUP_LINK_NOTLAST (0x2000)
- /*
- * Intent data
- */
-@@ -55,6 +95,12 @@
- #define LOOKUP_ACCESS (0x0400)
-
- extern int FASTCALL(__user_walk(const char __user *, unsigned, struct nameidata *));
-+extern int FASTCALL(__user_walk_it(const char __user *name, unsigned flags, struct nameidata *nd));
-+#define user_path_walk_it(name,nd) \
-+ __user_walk_it(name, LOOKUP_FOLLOW, nd)
-+#define user_path_walk_link_it(name,nd) \
-+ __user_walk_it(name, 0, nd)
-+extern void intent_release(struct lookup_intent *);
- #define user_path_walk(name,nd) \
- __user_walk(name, LOOKUP_FOLLOW, nd)
- #define user_path_walk_link(name,nd) \
-@@ -67,7 +113,6 @@
-
- extern struct dentry * lookup_one_len(const char *, struct dentry *, int);
- extern struct dentry * lookup_hash(struct qstr *, struct dentry *);
--
- extern int follow_down(struct vfsmount **, struct dentry **);
- extern int follow_up(struct vfsmount **, struct dentry **);
-
---- linux-2.6.12.6.orig/include/linux/mount.h
-+++ linux-2.6.12.6/include/linux/mount.h
-@@ -36,6 +36,8 @@
- struct list_head mnt_list;
- struct list_head mnt_fslink; /* link in fs-specific expiry list */
- struct namespace *mnt_namespace; /* containing namespace */
-+ struct list_head mnt_lustre_list; /* GNS mount list */
-+ unsigned long mnt_last_used; /* for GNS auto-umount (jiffies) */
- };
-
- static inline struct vfsmount *mntget(struct vfsmount *mnt)
git://git.whamcloud.com / fs / lustre-release.git / commitdiff