- fs/dcache.c | 20 ++
- fs/exec.c | 15 +
- fs/namei.c | 378 ++++++++++++++++++++++++++++++++++++++++++-------
- fs/nfsd/vfs.c | 2
- fs/open.c | 126 ++++++++++++++--
- fs/proc/base.c | 3
- fs/stat.c | 24 ++-
- include/linux/dcache.h | 31 ++++
- include/linux/fs.h | 32 +++-
- kernel/ksyms.c | 1
- 10 files changed, 543 insertions(+), 89 deletions(-)
+ fs/dcache.c | 19 ++
+ fs/exec.c | 17 +-
+ fs/namei.c | 295 +++++++++++++++++++++++++++++++++++++++-------
+ fs/namespace.c | 28 +++-
+ fs/open.c | 172 +++++++++++++++++++-------
+ fs/stat.c | 52 +++++---
+ include/linux/dcache.h | 60 +++++++++
+ include/linux/fs.h | 32 ++++
+ include/linux/fs_struct.h | 4
+ kernel/exit.c | 3
+ kernel/fork.c | 3
+ kernel/ksyms.c | 1
+ 12 files changed, 558 insertions(+), 128 deletions(-)
---- linux-2.4.20-l18/fs/exec.c~vfs_intent-2.4.20-vanilla Thu Nov 28 18:53:15 2002
-+++ linux-2.4.20-l18-phil/fs/exec.c Wed May 28 01:39:18 2003
-@@ -107,8 +107,9 @@ asmlinkage long sys_uselib(const char *
+Index: lum/fs/dcache.c
+===================================================================
+--- lum.orig/fs/dcache.c 2003-06-13 10:51:37.000000000 -0400
++++ lum/fs/dcache.c 2004-06-07 17:19:43.000000000 -0400
+@@ -181,6 +181,13 @@
+ spin_unlock(&dcache_lock);
+ return 0;
+ }
++
++ /* network invalidation by Lustre */
++ if (dentry->d_flags & DCACHE_LUSTRE_INVALID) {
++ spin_unlock(&dcache_lock);
++ return 0;
++ }
++
+ /*
+ * Check whether to do a partial shrink_dcache
+ * to get rid of unused child entries.
+@@ -830,13 +837,19 @@
+ * Adds a dentry to the hash according to its name.
+ */
+
+-void d_rehash(struct dentry * entry)
++void __d_rehash(struct dentry * entry, int lock)
+ {
+ struct list_head *list = d_hash(entry->d_parent, entry->d_name.hash);
+ if (!list_empty(&entry->d_hash)) BUG();
+- spin_lock(&dcache_lock);
++ if (lock) spin_lock(&dcache_lock);
+ list_add(&entry->d_hash, list);
+- spin_unlock(&dcache_lock);
++ if (lock) spin_unlock(&dcache_lock);
++}
++EXPORT_SYMBOL(__d_rehash);
++
++void d_rehash(struct dentry * entry)
++{
++ __d_rehash(entry, 1);
+ }
+
+ #define do_switch(x,y) do { \
+Index: lum/fs/exec.c
+===================================================================
+--- lum.orig/fs/exec.c 2003-11-28 13:26:21.000000000 -0500
++++ lum/fs/exec.c 2004-06-07 17:19:43.000000000 -0400
+@@ -112,8 +112,10 @@
struct file * file;
struct nameidata nd;
int error;
-+ struct lookup_intent it = { .it_op = IT_OPEN, .it_flags = O_RDONLY };
++ struct lookup_intent it = { .it_op = IT_OPEN,
++ .it_flags = FMODE_READ|FMODE_EXEC };
- error = user_path_walk(library, &nd);
+ error = user_path_walk_it(library, &nd, &it);
if (error)
goto out;
-@@ -120,7 +121,8 @@ asmlinkage long sys_uselib(const char *
+@@ -125,7 +127,8 @@
if (error)
goto exit;
- file = dentry_open(nd.dentry, nd.mnt, O_RDONLY);
+ file = dentry_open_it(nd.dentry, nd.mnt, O_RDONLY, &it);
-+ intent_release(nd.dentry, &it);
++ intent_release(&it);
error = PTR_ERR(file);
if (IS_ERR(file))
goto out;
-@@ -363,8 +365,9 @@ struct file *open_exec(const char *name)
+@@ -374,8 +377,10 @@
struct inode *inode;
struct file *file;
int err = 0;
-+ struct lookup_intent it = { .it_op = IT_OPEN, .it_flags = O_RDONLY };
++ struct lookup_intent it = { .it_op = IT_OPEN,
++ .it_flags = FMODE_READ|FMODE_EXEC };
- err = path_lookup(name, LOOKUP_FOLLOW|LOOKUP_POSITIVE, &nd);
+ err = path_lookup_it(name, LOOKUP_FOLLOW|LOOKUP_POSITIVE, &nd, &it);
file = ERR_PTR(err);
if (!err) {
inode = nd.dentry->d_inode;
-@@ -376,7 +379,8 @@ struct file *open_exec(const char *name)
+@@ -387,7 +392,8 @@
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, &it);
-+ intent_release(nd.dentry, &it);
++ intent_release(&it);
if (!IS_ERR(file)) {
err = deny_write_access(file);
if (err) {
-@@ -388,6 +392,7 @@ out:
+@@ -399,6 +405,7 @@
return file;
}
}
-+ intent_release(nd.dentry, &it);
++ intent_release(&it);
path_release(&nd);
}
goto out;
-@@ -989,7 +994,7 @@ int do_coredump(long signr, struct pt_re
+@@ -1132,7 +1139,7 @@
goto close_fail;
if (!file->f_op->write)
goto close_fail;
goto close_fail;
retval = binfmt->core_dump(signr, regs, file);
---- linux-2.4.20-l18/fs/dcache.c~vfs_intent-2.4.20-vanilla Thu Nov 28 18:53:15 2002
-+++ linux-2.4.20-l18-phil/fs/dcache.c Wed May 28 01:39:18 2003
-@@ -181,6 +181,13 @@ int d_invalidate(struct dentry * dentry)
- spin_unlock(&dcache_lock);
- return 0;
- }
-+
-+ /* network invalidation by Lustre */
-+ if (dentry->d_flags & DCACHE_LUSTRE_INVALID) {
-+ spin_unlock(&dcache_lock);
-+ return 0;
-+ }
-+
- /*
- * Check whether to do a partial shrink_dcache
- * to get rid of unused child entries.
-@@ -616,6 +623,7 @@ struct dentry * d_alloc(struct dentry *
- dentry->d_op = NULL;
- dentry->d_fsdata = NULL;
- dentry->d_mounted = 0;
-+ dentry->d_it = NULL;
- INIT_LIST_HEAD(&dentry->d_hash);
- INIT_LIST_HEAD(&dentry->d_lru);
- INIT_LIST_HEAD(&dentry->d_subdirs);
-@@ -830,13 +838,19 @@ void d_delete(struct dentry * dentry)
- * Adds a dentry to the hash according to its name.
- */
-
--void d_rehash(struct dentry * entry)
-+void __d_rehash(struct dentry * entry, int lock)
- {
- struct list_head *list = d_hash(entry->d_parent, entry->d_name.hash);
- if (!list_empty(&entry->d_hash)) BUG();
-- spin_lock(&dcache_lock);
-+ if (lock) spin_lock(&dcache_lock);
- list_add(&entry->d_hash, list);
-- spin_unlock(&dcache_lock);
-+ if (lock) spin_unlock(&dcache_lock);
-+}
-+EXPORT_SYMBOL(__d_rehash);
-+
-+void d_rehash(struct dentry * entry)
-+{
-+ __d_rehash(entry, 1);
- }
-
- #define do_switch(x,y) do { \
---- linux-2.4.20-l18/fs/namei.c~vfs_intent-2.4.20-vanilla Thu Nov 28 18:53:15 2002
-+++ linux-2.4.20-l18-phil/fs/namei.c Sun Jun 1 23:41:35 2003
+Index: lum/fs/namei.c
+===================================================================
+--- lum.orig/fs/namei.c 2003-08-25 07:44:43.000000000 -0400
++++ lum/fs/namei.c 2004-06-07 17:24:47.000000000 -0400
@@ -94,6 +94,13 @@
* XEmacs seems to be relying on it...
*/
-+void intent_release(struct dentry *de, struct lookup_intent *it)
++void intent_release(struct lookup_intent *it)
+{
-+ if (it && de->d_op && de->d_op->d_intent_release)
-+ de->d_op->d_intent_release(de, it);
++ if (it && it->it_op_release)
++ it->it_op_release(it);
+
+}
+
/* In order to reduce some races, while at the same time doing additional
* checking and hopefully speeding things up, we copy filenames to the
* kernel data space before using them..
-@@ -260,10 +267,19 @@ void path_release(struct nameidata *nd)
+@@ -260,10 +267,20 @@
* Internal lookup() using the new generic dcache.
* SMP-safe
*/
-static struct dentry * cached_lookup(struct dentry * parent, struct qstr * name, int flags)
+static struct dentry *cached_lookup(struct dentry *parent, struct qstr *name,
-+ int flags, struct lookup_intent *it)
++ int flags, struct nameidata *nd,
++ struct lookup_intent *it)
{
struct dentry * dentry = d_lookup(parent, name);
-+ if (dentry && dentry->d_op && dentry->d_op->d_revalidate2) {
-+ if (!dentry->d_op->d_revalidate2(dentry, flags, it) &&
++ if (dentry && dentry->d_op && dentry->d_op->d_revalidate_it) {
++ if (!dentry->d_op->d_revalidate_it(dentry, flags, nd, it) &&
+ !d_invalidate(dentry)) {
+ dput(dentry);
+ dentry = NULL;
if (dentry && dentry->d_op && dentry->d_op->d_revalidate) {
if (!dentry->d_op->d_revalidate(dentry, flags) && !d_invalidate(dentry)) {
dput(dentry);
-@@ -281,11 +297,14 @@ static struct dentry * cached_lookup(str
+@@ -281,11 +298,16 @@
* make sure that nobody added the entry to the dcache in the meantime..
* SMP-safe
*/
-static struct dentry * real_lookup(struct dentry * parent, struct qstr * name, int flags)
+static struct dentry *real_lookup(struct dentry *parent, struct qstr *name,
-+ int flags, struct lookup_intent *it)
++ int flags, struct nameidata *nd,
++ struct lookup_intent *it)
{
struct dentry * result;
struct inode *dir = parent->d_inode;
++ int counter = 0;
+again:
-+
++ counter++;
down(&dir->i_sem);
/*
* First re-do the cached lookup just in case it was created
-@@ -300,6 +319,9 @@ static struct dentry * real_lookup(struc
+@@ -300,6 +322,9 @@
result = ERR_PTR(-ENOMEM);
if (dentry) {
lock_kernel();
-+ if (dir->i_op->lookup2)
-+ result = dir->i_op->lookup2(dir, dentry, it);
++ if (dir->i_op->lookup_it)
++ result = dir->i_op->lookup_it(dir, dentry, nd, it, flags);
+ else
result = dir->i_op->lookup(dir, dentry);
unlock_kernel();
if (result)
-@@ -321,6 +343,12 @@ static struct dentry * real_lookup(struc
+@@ -321,6 +346,15 @@
dput(result);
result = ERR_PTR(-ENOENT);
}
-+ } else if (result->d_op && result->d_op->d_revalidate2) {
-+ if (!result->d_op->d_revalidate2(result, flags, it) &&
++ } else if (result->d_op && result->d_op->d_revalidate_it) {
++ if (!result->d_op->d_revalidate_it(result, flags, nd, it) &&
+ !d_invalidate(result)) {
+ dput(result);
-+ goto again;
++ if (counter > 10)
++ result = ERR_PTR(-ESTALE);
++ if (!IS_ERR(result))
++ goto again;
+ }
}
return result;
}
-@@ -332,7 +360,8 @@ static struct dentry * real_lookup(struc
+@@ -332,7 +366,8 @@
* Without that kind of total limit, nasty chains of consecutive
* symlinks can cause almost arbitrarily long lookups.
*/
{
int err;
if (current->link_count >= 5)
-@@ -346,10 +375,21 @@ static inline int do_follow_link(struct
+@@ -346,10 +381,12 @@
current->link_count++;
current->total_link_count++;
UPDATE_ATIME(dentry->d_inode);
-- err = dentry->d_inode->i_op->follow_link(dentry, nd);
-+ nd->it = it;
-+ if (dentry->d_inode->i_op->follow_link2)
-+ err = dentry->d_inode->i_op->follow_link2(dentry, nd, it);
-+ else
-+ err = dentry->d_inode->i_op->follow_link(dentry, nd);
-+ if (!err && it != NULL && !(it->it_int_flags & IT_FL_FOLLOWED)) {
-+ /* vfs_follow_link was never called */
-+ intent_release(dentry, it);
-+ path_release(nd);
-+ err = -ENOLINK;
-+ }
++ nd->intent = it;
+ err = dentry->d_inode->i_op->follow_link(dentry, nd);
current->link_count--;
return err;
loop:
-+ intent_release(dentry, it);
++ intent_release(it);
path_release(nd);
return -ELOOP;
}
-@@ -379,15 +419,26 @@ int follow_up(struct vfsmount **mnt, str
- return __follow_up(mnt, dentry);
- }
-
--static inline int __follow_down(struct vfsmount **mnt, struct dentry **dentry)
-+static inline int __follow_down(struct vfsmount **mnt, struct dentry **dentry,
-+ struct lookup_intent *it)
- {
- struct vfsmount *mounted;
-
- spin_lock(&dcache_lock);
- mounted = lookup_mnt(*mnt, *dentry);
- if (mounted) {
-+ int opc = 0, mode = 0;
- *mnt = mntget(mounted);
- spin_unlock(&dcache_lock);
-+ if (it) {
-+ opc = it->it_op;
-+ mode = it->it_mode;
-+ }
-+ intent_release(*dentry, it);
-+ if (it) {
-+ it->it_op = opc;
-+ it->it_mode = mode;
-+ }
- dput(*dentry);
- mntput(mounted->mnt_parent);
- *dentry = dget(mounted->mnt_root);
-@@ -399,7 +450,7 @@ static inline int __follow_down(struct v
-
- int follow_down(struct vfsmount **mnt, struct dentry **dentry)
- {
-- return __follow_down(mnt,dentry);
-+ return __follow_down(mnt,dentry,NULL);
- }
-
- static inline void follow_dotdot(struct nameidata *nd)
-@@ -435,7 +486,7 @@ static inline void follow_dotdot(struct
- mntput(nd->mnt);
- nd->mnt = parent;
- }
-- while (d_mountpoint(nd->dentry) && __follow_down(&nd->mnt, &nd->dentry))
-+ while (d_mountpoint(nd->dentry) && __follow_down(&nd->mnt, &nd->dentry, NULL))
- ;
- }
-
-@@ -447,7 +498,8 @@ static inline void follow_dotdot(struct
+@@ -447,7 +484,8 @@
*
* We expect 'base' to be positive and a directory.
*/
{
struct dentry *dentry;
struct inode *inode;
-@@ -520,15 +572,15 @@ int link_path_walk(const char * name, st
+@@ -520,9 +558,9 @@
break;
}
/* This does the actual lookups.. */
- dentry = cached_lookup(nd->dentry, &this, LOOKUP_CONTINUE);
-+ dentry = cached_lookup(nd->dentry, &this, LOOKUP_CONTINUE, NULL);
++ dentry = cached_lookup(nd->dentry, &this, LOOKUP_CONTINUE, nd, NULL);
if (!dentry) {
- dentry = real_lookup(nd->dentry, &this, LOOKUP_CONTINUE);
-+ dentry = real_lookup(nd->dentry, &this, LOOKUP_CONTINUE, NULL);
++ dentry = real_lookup(nd->dentry, &this, LOOKUP_CONTINUE, nd, NULL);
err = PTR_ERR(dentry);
if (IS_ERR(dentry))
break;
- }
- /* Check mountpoints.. */
-- while (d_mountpoint(dentry) && __follow_down(&nd->mnt, &dentry))
-+ while (d_mountpoint(dentry) && __follow_down(&nd->mnt, &dentry, NULL))
- ;
-
- err = -ENOENT;
-@@ -539,8 +591,8 @@ int link_path_walk(const char * name, st
- if (!inode->i_op)
+@@ -540,7 +578,7 @@
goto out_dput;
-- if (inode->i_op->follow_link) {
+ if (inode->i_op->follow_link) {
- err = do_follow_link(dentry, nd);
-+ if (inode->i_op->follow_link || inode->i_op->follow_link2) {
+ err = do_follow_link(dentry, nd, NULL);
dput(dentry);
if (err)
goto return_err;
-@@ -556,7 +608,7 @@ int link_path_walk(const char * name, st
+@@ -556,7 +594,7 @@
nd->dentry = dentry;
}
err = -ENOTDIR;
- if (!inode->i_op->lookup)
-+ if (!inode->i_op->lookup && !inode->i_op->lookup2)
++ if (!inode->i_op->lookup && !inode->i_op->lookup_it)
break;
continue;
/* here ends the main loop */
-@@ -583,19 +635,20 @@ last_component:
+@@ -583,9 +621,9 @@
if (err < 0)
break;
}
- dentry = cached_lookup(nd->dentry, &this, 0);
-+ dentry = cached_lookup(nd->dentry, &this, 0, it);
++ dentry = cached_lookup(nd->dentry, &this, 0, nd, it);
if (!dentry) {
- dentry = real_lookup(nd->dentry, &this, 0);
-+ dentry = real_lookup(nd->dentry, &this, 0, it);
++ dentry = real_lookup(nd->dentry, &this, 0, nd, it);
err = PTR_ERR(dentry);
if (IS_ERR(dentry))
break;
- }
-- while (d_mountpoint(dentry) && __follow_down(&nd->mnt, &dentry))
-+ while (d_mountpoint(dentry) && __follow_down(&nd->mnt, &dentry, it))
- ;
+@@ -595,7 +633,7 @@
inode = dentry->d_inode;
if ((lookup_flags & LOOKUP_FOLLOW)
-- && inode && inode->i_op && inode->i_op->follow_link) {
+ && inode && inode->i_op && inode->i_op->follow_link) {
- err = do_follow_link(dentry, nd);
-+ && inode && inode->i_op &&
-+ (inode->i_op->follow_link || inode->i_op->follow_link2)) {
+ err = do_follow_link(dentry, nd, it);
dput(dentry);
if (err)
goto return_err;
-@@ -609,7 +662,8 @@ last_component:
+@@ -609,7 +647,8 @@
goto no_inode;
if (lookup_flags & LOOKUP_DIRECTORY) {
err = -ENOTDIR;
- if (!inode->i_op || !inode->i_op->lookup)
+ if (!inode->i_op ||
-+ (!inode->i_op->lookup && !inode->i_op->lookup2))
++ (!inode->i_op->lookup && !inode->i_op->lookup_it))
break;
}
goto return_base;
-@@ -633,6 +687,23 @@ return_reval:
+@@ -635,6 +674,27 @@
* Check the cached dentry for staleness.
*/
dentry = nd->dentry;
-+ revalidate_again:
-+ if (dentry && dentry->d_op && dentry->d_op->d_revalidate2) {
++ if (dentry && dentry->d_op && dentry->d_op->d_revalidate_it) {
+ err = -ESTALE;
-+ if (!dentry->d_op->d_revalidate2(dentry, 0, it)) {
-+ struct dentry *new;
-+ err = permission(dentry->d_parent->d_inode,
-+ MAY_EXEC);
-+ if (err)
-+ break;
-+ new = real_lookup(dentry->d_parent,
-+ &dentry->d_name, 0, NULL);
++ if (!dentry->d_op->d_revalidate_it(dentry, 0, nd, it)) {
++ struct dentry *new;
++ err = permission(dentry->d_parent->d_inode,
++ MAY_EXEC);
++ if (err)
++ break;
++ new = real_lookup(dentry->d_parent,
++ &dentry->d_name, 0, nd, it);
++ if (IS_ERR(new)) {
++ err = PTR_ERR(new);
++ break;
++ }
+ d_invalidate(dentry);
-+ dput(dentry);
-+ dentry = new;
-+ goto revalidate_again;
-+ }
++ dput(dentry);
++ nd->dentry = new;
++ }
++ if (!nd->dentry->d_inode)
++ goto no_inode;
+ } else
if (dentry && dentry->d_op && dentry->d_op->d_revalidate) {
err = -ESTALE;
if (!dentry->d_op->d_revalidate(dentry, 0)) {
-@@ -646,15 +717,28 @@ out_dput:
+@@ -648,15 +708,28 @@
dput(dentry);
break;
}
+ if (err)
-+ intent_release(nd->dentry, it);
++ intent_release(it);
path_release(nd);
return_err:
return err;
}
/* SMP-safe */
-@@ -739,6 +823,17 @@ walk_init_root(const char *name, struct
+@@ -741,6 +814,17 @@
}
/* SMP-safe */
int path_lookup(const char *path, unsigned flags, struct nameidata *nd)
{
int error = 0;
-@@ -753,6 +848,7 @@ int path_init(const char *name, unsigned
+@@ -755,6 +839,7 @@
{
nd->last_type = LAST_ROOT; /* if there are only slashes... */
nd->flags = flags;
-+ nd->it = NULL;
++ nd->intent = NULL;
if (*name=='/')
return walk_init_root(name,nd);
read_lock(¤t->fs->lock);
-@@ -767,7 +863,8 @@ int path_init(const char *name, unsigned
+@@ -769,7 +854,8 @@
* needs parent already locked. Doesn't follow mounts.
* SMP-safe.
*/
-struct dentry * lookup_hash(struct qstr *name, struct dentry * base)
+struct dentry * lookup_hash_it(struct qstr *name, struct dentry * base,
-+ struct lookup_intent *it)
++ struct nameidata *nd, struct lookup_intent *it)
{
struct dentry * dentry;
struct inode *inode;
-@@ -790,13 +887,16 @@ struct dentry * lookup_hash(struct qstr
+@@ -792,13 +878,16 @@
goto out;
}
- dentry = cached_lookup(base, name, 0);
-+ dentry = cached_lookup(base, name, 0, it);
++ dentry = cached_lookup(base, name, 0, nd, it);
if (!dentry) {
struct dentry *new = d_alloc(base, name);
dentry = ERR_PTR(-ENOMEM);
if (!new)
goto out;
lock_kernel();
-+ if (inode->i_op->lookup2)
-+ dentry = inode->i_op->lookup2(inode, new, it);
++ if (inode->i_op->lookup_it)
++ dentry = inode->i_op->lookup_it(inode, new, nd, it, 0);
+ else
dentry = inode->i_op->lookup(inode, new);
unlock_kernel();
if (!dentry)
-@@ -808,6 +908,12 @@ out:
+@@ -810,6 +899,13 @@
return dentry;
}
-+struct dentry * lookup_hash(struct qstr *name, struct dentry * base)
++struct dentry * lookup_hash(struct qstr *name, struct dentry * base,
++ struct nameidata *nd)
+{
-+ return lookup_hash_it(name, base, NULL);
++ return lookup_hash_it(name, base, nd, NULL);
+}
+
+
/* SMP-safe */
struct dentry * lookup_one_len(const char * name, struct dentry * base, int len)
{
-@@ -829,7 +935,7 @@ struct dentry * lookup_one_len(const cha
+@@ -831,7 +927,7 @@
}
this.hash = end_name_hash(hash);
- return lookup_hash(&this, base);
-+ return lookup_hash_it(&this, base, NULL);
++ return lookup_hash_it(&this, base, NULL, NULL);
access:
return ERR_PTR(-EACCES);
}
-@@ -860,6 +966,23 @@ int __user_walk(const char *name, unsign
+@@ -862,6 +958,23 @@
return err;
}
/*
* It's inline, so penalty for filesystems that don't use sticky bit is
* minimal.
-@@ -996,7 +1119,8 @@ exit_lock:
+@@ -957,7 +1070,8 @@
+ return retval;
+ }
+
+-int vfs_create(struct inode *dir, struct dentry *dentry, int mode)
++static int vfs_create_it(struct inode *dir, struct dentry *dentry, int mode,
++ struct lookup_intent *it)
+ {
+ int error;
+
+@@ -970,12 +1084,15 @@
+ goto exit_lock;
+
+ error = -EACCES; /* shouldn't it be ENOSYS? */
+- if (!dir->i_op || !dir->i_op->create)
++ if (!dir->i_op || (!dir->i_op->create && !dir->i_op->create_it))
+ goto exit_lock;
+
+ DQUOT_INIT(dir);
+ lock_kernel();
+- error = dir->i_op->create(dir, dentry, mode);
++ if (dir->i_op->create_it)
++ error = dir->i_op->create_it(dir, dentry, mode, it);
++ else
++ error = dir->i_op->create(dir, dentry, mode);
+ unlock_kernel();
+ exit_lock:
+ up(&dir->i_zombie);
+@@ -984,6 +1101,11 @@
+ return error;
+ }
+
++int vfs_create(struct inode *dir, struct dentry *dentry, int mode)
++{
++ return vfs_create_it(dir, dentry, mode, NULL);
++}
++
+ /*
+ * open_namei()
+ *
+@@ -998,7 +1120,8 @@
* for symlinks (where the permissions are checked later).
* SMP-safe
*/
{
int acc_mode, error = 0;
struct inode *inode;
-@@ -1010,7 +1134,7 @@ int open_namei(const char * pathname, in
+@@ -1008,11 +1131,14 @@
+
+ acc_mode = ACC_MODE(flag);
+
++ if (it)
++ it->it_flags = flag;
++
+ /*
* The simplest case - just a plain lookup.
*/
if (!(flag & O_CREAT)) {
if (error)
return error;
dentry = nd->dentry;
-@@ -1020,6 +1144,10 @@ int open_namei(const char * pathname, in
+@@ -1022,6 +1148,10 @@
/*
* Create - we need to know the parent.
*/
-+ if (it) {
-+ it->it_mode = mode;
-+ it->it_op |= IT_CREAT;
-+ }
++ if (it) {
++ it->it_create_mode = mode;
++ it->it_op |= IT_CREAT;
++ }
error = path_lookup(pathname, LOOKUP_PARENT, nd);
if (error)
return error;
-@@ -1035,7 +1163,7 @@ int open_namei(const char * pathname, in
+@@ -1037,7 +1167,7 @@
dir = nd->dentry;
down(&dir->d_inode->i_sem);
- dentry = lookup_hash(&nd->last, nd->dentry);
-+ dentry = lookup_hash_it(&nd->last, nd->dentry, it);
++ dentry = lookup_hash_it(&nd->last, nd->dentry, nd, it);
do_last:
error = PTR_ERR(dentry);
-@@ -1044,6 +1172,7 @@ do_last:
+@@ -1046,10 +1176,11 @@
goto exit;
}
-+ it->it_mode = mode;
++ it->it_create_mode = mode;
/* Negative dentry, just create the file */
if (!dentry->d_inode) {
- error = vfs_create(dir->d_inode, dentry,
-@@ -1072,12 +1201,13 @@ do_last:
- error = -ELOOP;
- if (flag & O_NOFOLLOW)
- goto exit_dput;
-- while (__follow_down(&nd->mnt,&dentry) && d_mountpoint(dentry));
-+ while (__follow_down(&nd->mnt,&dentry,it) && d_mountpoint(dentry));
- }
- error = -ENOENT;
- if (!dentry->d_inode)
- goto exit_dput;
-- if (dentry->d_inode->i_op && dentry->d_inode->i_op->follow_link)
-+ if (dentry->d_inode->i_op && (dentry->d_inode->i_op->follow_link ||
-+ dentry->d_inode->i_op->follow_link2))
- goto do_link;
-
- dput(nd->dentry);
-@@ -1151,7 +1281,7 @@ ok:
+- error = vfs_create(dir->d_inode, dentry,
+- mode & ~current->fs->umask);
++ error = vfs_create_it(dir->d_inode, dentry,
++ mode & ~current->fs->umask, it);
+ up(&dir->d_inode->i_sem);
+ dput(nd->dentry);
+ nd->dentry = dentry;
+@@ -1153,7 +1284,7 @@
if (!error) {
DQUOT_INIT(inode);
}
put_write_access(inode);
if (error)
-@@ -1163,8 +1293,10 @@ ok:
+@@ -1165,8 +1296,10 @@
return 0;
exit_dput:
-+ intent_release(dentry, it);
++ intent_release(it);
dput(dentry);
exit:
-+ intent_release(nd->dentry, it);
++ intent_release(it);
path_release(nd);
return error;
-@@ -1183,7 +1315,19 @@ do_link:
+@@ -1185,7 +1318,10 @@
* are done. Procfs-like symlinks just set LAST_BIND.
*/
UPDATE_ATIME(dentry->d_inode);
-- error = dentry->d_inode->i_op->follow_link(dentry, nd);
-+ nd->it = it;
-+ if (dentry->d_inode->i_op->follow_link2)
-+ error = dentry->d_inode->i_op->follow_link2(dentry, nd, it);
-+ else
-+ error = dentry->d_inode->i_op->follow_link(dentry, nd);
-+ if (error) {
-+ intent_release(dentry, it);
-+ } else if (it != NULL && !(it->it_int_flags & IT_FL_FOLLOWED)) {
-+ /* vfs_follow_link was never called */
-+ intent_release(dentry, it);
-+ path_release(nd);
-+ error = -ENOLINK;
-+ }
++ nd->intent = it;
+ error = dentry->d_inode->i_op->follow_link(dentry, nd);
++ if (error)
++ intent_release(it);
dput(dentry);
if (error)
return error;
-@@ -1205,13 +1349,20 @@ do_link:
+@@ -1207,13 +1343,20 @@
}
dir = nd->dentry;
down(&dir->d_inode->i_sem);
- dentry = lookup_hash(&nd->last, nd->dentry);
-+ dentry = lookup_hash_it(&nd->last, nd->dentry, it);
++ dentry = lookup_hash_it(&nd->last, nd->dentry, nd, it);
putname(nd->last.name);
goto do_last;
}
{
struct dentry *dentry;
-@@ -1219,7 +1370,7 @@ static struct dentry *lookup_create(stru
+@@ -1221,7 +1364,7 @@
dentry = ERR_PTR(-EEXIST);
if (nd->last_type != LAST_NORM)
goto fail;
- dentry = lookup_hash(&nd->last, nd->dentry);
-+ dentry = lookup_hash_it(&nd->last, nd->dentry, it);
++ dentry = lookup_hash_it(&nd->last, nd->dentry, nd, it);
if (IS_ERR(dentry))
goto fail;
if (!is_dir && nd->last.name[nd->last.len] && !dentry->d_inode)
-@@ -1275,7 +1426,19 @@ asmlinkage long sys_mknod(const char * f
+@@ -1277,7 +1420,20 @@
error = path_lookup(tmp, LOOKUP_PARENT, &nd);
if (error)
goto out;
- dentry = lookup_create(&nd, 0);
+
-+ if (nd.dentry->d_inode->i_op->mknod2) {
++ if (nd.last_type != LAST_NORM) {
++ error = -EEXIST;
++ goto out2;
++ }
++ if (nd.dentry->d_inode->i_op->mknod_raw) {
+ struct inode_operations *op = nd.dentry->d_inode->i_op;
-+ error = op->mknod2(nd.dentry->d_inode,
-+ nd.last.name,
-+ nd.last.len,
-+ mode, dev);
++ error = op->mknod_raw(&nd, mode, dev);
+ /* the file system wants to use normal vfs path now */
+ if (error != -EOPNOTSUPP)
+ goto out2;
error = PTR_ERR(dentry);
mode &= ~current->fs->umask;
-@@ -1296,6 +1459,7 @@ asmlinkage long sys_mknod(const char * f
+@@ -1298,6 +1454,7 @@
dput(dentry);
}
up(&nd.dentry->d_inode->i_sem);
path_release(&nd);
out:
putname(tmp);
-@@ -1343,7 +1507,17 @@ asmlinkage long sys_mkdir(const char * p
+@@ -1345,7 +1502,18 @@
error = path_lookup(tmp, LOOKUP_PARENT, &nd);
if (error)
goto out;
- dentry = lookup_create(&nd, 1);
-+ if (nd.dentry->d_inode->i_op->mkdir2) {
-+ struct inode_operations *op = nd.dentry->d_inode->i_op;
-+ error = op->mkdir2(nd.dentry->d_inode,
-+ nd.last.name,
-+ nd.last.len,
-+ mode);
-+ /* the file system wants to use normal vfs path now */
-+ if (error != -EOPNOTSUPP)
-+ goto out2;
-+ }
++ if (nd.last_type != LAST_NORM) {
++ error = -EEXIST;
++ goto out2;
++ }
++ if (nd.dentry->d_inode->i_op->mkdir_raw) {
++ struct inode_operations *op = nd.dentry->d_inode->i_op;
++ error = op->mkdir_raw(&nd, mode);
++ /* the file system wants to use normal vfs path now */
++ if (error != -EOPNOTSUPP)
++ goto out2;
++ }
+ dentry = lookup_create(&nd, 1, NULL);
error = PTR_ERR(dentry);
if (!IS_ERR(dentry)) {
error = vfs_mkdir(nd.dentry->d_inode, dentry,
-@@ -1351,6 +1525,7 @@ asmlinkage long sys_mkdir(const char * p
+@@ -1353,6 +1521,7 @@
dput(dentry);
}
up(&nd.dentry->d_inode->i_sem);
path_release(&nd);
out:
putname(tmp);
-@@ -1451,8 +1626,33 @@ asmlinkage long sys_rmdir(const char * p
+@@ -1453,8 +1622,16 @@
error = -EBUSY;
goto exit1;
}
-+ if (nd.dentry->d_inode->i_op->rmdir2) {
++ if (nd.dentry->d_inode->i_op->rmdir_raw) {
+ struct inode_operations *op = nd.dentry->d_inode->i_op;
-+ struct dentry *last;
+
-+ down(&nd.dentry->d_inode->i_sem);
-+ last = lookup_hash_it(&nd.last, nd.dentry, NULL);
-+ up(&nd.dentry->d_inode->i_sem);
-+ if (IS_ERR(last)) {
-+ error = PTR_ERR(last);
-+ goto exit1;
-+ }
-+ if (d_mountpoint(last)) {
-+ dput(last);
-+ error = -EBUSY;
-+ goto exit1;
-+ }
-+ dput(last);
-+
-+ error = op->rmdir2(nd.dentry->d_inode,
-+ nd.last.name,
-+ nd.last.len);
++ error = op->rmdir_raw(&nd);
+ /* the file system wants to use normal vfs path now */
+ if (error != -EOPNOTSUPP)
+ goto exit1;
+ }
down(&nd.dentry->d_inode->i_sem);
- dentry = lookup_hash(&nd.last, nd.dentry);
-+ dentry = lookup_hash_it(&nd.last, nd.dentry, NULL);
++ dentry = lookup_hash_it(&nd.last, nd.dentry, &nd, NULL);
error = PTR_ERR(dentry);
if (!IS_ERR(dentry)) {
error = vfs_rmdir(nd.dentry->d_inode, dentry);
-@@ -1510,8 +1710,17 @@ asmlinkage long sys_unlink(const char *
+@@ -1512,8 +1689,15 @@
error = -EISDIR;
if (nd.last_type != LAST_NORM)
goto exit1;
-+ if (nd.dentry->d_inode->i_op->unlink2) {
++ if (nd.dentry->d_inode->i_op->unlink_raw) {
+ struct inode_operations *op = nd.dentry->d_inode->i_op;
-+ error = op->unlink2(nd.dentry->d_inode,
-+ nd.last.name,
-+ nd.last.len);
++ error = op->unlink_raw(&nd);
+ /* the file system wants to use normal vfs path now */
+ if (error != -EOPNOTSUPP)
+ goto exit1;
+ }
down(&nd.dentry->d_inode->i_sem);
- dentry = lookup_hash(&nd.last, nd.dentry);
-+ dentry = lookup_hash_it(&nd.last, nd.dentry, NULL);
++ dentry = lookup_hash_it(&nd.last, nd.dentry, &nd, NULL);
error = PTR_ERR(dentry);
if (!IS_ERR(dentry)) {
/* Why not before? Because we want correct error value */
-@@ -1578,15 +1787,26 @@ asmlinkage long sys_symlink(const char *
+@@ -1580,15 +1764,27 @@
error = path_lookup(to, LOOKUP_PARENT, &nd);
if (error)
goto out;
- dentry = lookup_create(&nd, 0);
-+ if (nd.dentry->d_inode->i_op->symlink2) {
++ if (nd.last_type != LAST_NORM) {
++ error = -EEXIST;
++ goto out2;
++ }
++ if (nd.dentry->d_inode->i_op->symlink_raw) {
+ struct inode_operations *op = nd.dentry->d_inode->i_op;
-+ error = op->symlink2(nd.dentry->d_inode,
-+ nd.last.name,
-+ nd.last.len,
-+ from);
++ error = op->symlink_raw(&nd, from);
+ /* the file system wants to use normal vfs path now */
+ if (error != -EOPNOTSUPP)
+ goto out2;
putname(to);
}
putname(from);
-@@ -1662,7 +1882,17 @@ asmlinkage long sys_link(const char * ol
+@@ -1664,7 +1860,18 @@
error = -EXDEV;
if (old_nd.mnt != nd.mnt)
goto out_release;
- new_dentry = lookup_create(&nd, 0);
-+ if (nd.dentry->d_inode->i_op->link2) {
++ if (nd.last_type != LAST_NORM) {
++ error = -EEXIST;
++ goto out_release;
++ }
++ if (nd.dentry->d_inode->i_op->link_raw) {
+ struct inode_operations *op = nd.dentry->d_inode->i_op;
-+ error = op->link2(old_nd.dentry->d_inode,
-+ nd.dentry->d_inode,
-+ nd.last.name,
-+ nd.last.len);
++ error = op->link_raw(&old_nd, &nd);
+ /* the file system wants to use normal vfs path now */
+ if (error != -EOPNOTSUPP)
+ goto out_release;
error = PTR_ERR(new_dentry);
if (!IS_ERR(new_dentry)) {
error = vfs_link(old_nd.dentry, nd.dentry->d_inode, new_dentry);
-@@ -1706,7 +1936,8 @@ exit:
+@@ -1708,7 +1915,7 @@
* locking].
*/
int vfs_rename_dir(struct inode *old_dir, struct dentry *old_dentry,
- struct inode *new_dir, struct dentry *new_dentry)
-+ struct inode *new_dir, struct dentry *new_dentry,
-+ struct lookup_intent *it)
++ struct inode *new_dir, struct dentry *new_dentry)
{
int error;
struct inode *target;
-@@ -1764,6 +1995,7 @@ int vfs_rename_dir(struct inode *old_dir
- error = -EBUSY;
- else
- error = old_dir->i_op->rename(old_dir, old_dentry, new_dir, new_dentry);
-+ intent_release(new_dentry, it);
- if (target) {
- if (!error)
- target->i_flags |= S_DEAD;
-@@ -1785,7 +2017,8 @@ out_unlock:
+@@ -1787,7 +1994,7 @@
}
int vfs_rename_other(struct inode *old_dir, struct dentry *old_dentry,
- struct inode *new_dir, struct dentry *new_dentry)
-+ struct inode *new_dir, struct dentry *new_dentry,
-+ struct lookup_intent *it)
++ struct inode *new_dir, struct dentry *new_dentry)
{
int error;
-@@ -1816,6 +2049,7 @@ int vfs_rename_other(struct inode *old_d
- error = -EBUSY;
- else
- error = old_dir->i_op->rename(old_dir, old_dentry, new_dir, new_dentry);
-+ intent_release(new_dentry, it);
- double_up(&old_dir->i_zombie, &new_dir->i_zombie);
- if (error)
- return error;
-@@ -1827,13 +2061,14 @@ int vfs_rename_other(struct inode *old_d
- }
-
- int vfs_rename(struct inode *old_dir, struct dentry *old_dentry,
-- struct inode *new_dir, struct dentry *new_dentry)
-+ struct inode *new_dir, struct dentry *new_dentry,
-+ struct lookup_intent *it)
- {
- int error;
- if (S_ISDIR(old_dentry->d_inode->i_mode))
-- error = vfs_rename_dir(old_dir,old_dentry,new_dir,new_dentry);
-+ error = vfs_rename_dir(old_dir,old_dentry,new_dir,new_dentry,it);
- else
-- error = vfs_rename_other(old_dir,old_dentry,new_dir,new_dentry);
-+ error = vfs_rename_other(old_dir,old_dentry,new_dir,new_dentry,it);
- if (!error) {
- if (old_dir == new_dir)
- inode_dir_notify(old_dir, DN_RENAME);
-@@ -1875,7 +2110,7 @@ static inline int do_rename(const char *
+@@ -1875,9 +2082,18 @@
+ if (newnd.last_type != LAST_NORM)
+ goto exit2;
++ if (old_dir->d_inode->i_op->rename_raw) {
++ lock_kernel();
++ error = old_dir->d_inode->i_op->rename_raw(&oldnd, &newnd);
++ unlock_kernel();
++ /* the file system wants to use normal vfs path now */
++ if (error != -EOPNOTSUPP)
++ goto exit2;
++ }
++
double_lock(new_dir, old_dir);
- old_dentry = lookup_hash(&oldnd.last, old_dir);
-+ old_dentry = lookup_hash_it(&oldnd.last, old_dir, NULL);
++ old_dentry = lookup_hash_it(&oldnd.last, old_dir, &oldnd, NULL);
error = PTR_ERR(old_dentry);
if (IS_ERR(old_dentry))
goto exit3;
-@@ -1891,16 +2126,37 @@ static inline int do_rename(const char *
+@@ -1893,16 +2109,16 @@
if (newnd.last.name[newnd.last.len])
goto exit4;
}
- new_dentry = lookup_hash(&newnd.last, new_dir);
-+ new_dentry = lookup_hash_it(&newnd.last, new_dir, NULL);
++ new_dentry = lookup_hash_it(&newnd.last, new_dir, &newnd, NULL);
error = PTR_ERR(new_dentry);
if (IS_ERR(new_dentry))
goto exit4;
-+ if (old_dir->d_inode->i_op->rename2) {
-+ lock_kernel();
-+ /* don't rename mount point. mds will take care of
-+ * the rest sanity checking */
-+ if (d_mountpoint(old_dentry)||d_mountpoint(new_dentry)) {
-+ error = -EBUSY;
-+ goto exit5;
-+ }
-+
-+ error = old_dir->d_inode->i_op->rename2(old_dir->d_inode,
-+ new_dir->d_inode,
-+ oldnd.last.name,
-+ oldnd.last.len,
-+ newnd.last.name,
-+ newnd.last.len);
-+ unlock_kernel();
-+ /* the file system wants to use normal vfs path now */
-+ if (error != -EOPNOTSUPP)
-+ goto exit5;
-+ }
+
lock_kernel();
error = vfs_rename(old_dir->d_inode, old_dentry,
-- new_dir->d_inode, new_dentry);
-+ new_dir->d_inode, new_dentry, NULL);
+ new_dir->d_inode, new_dentry);
unlock_kernel();
-
-+exit5:
dput(new_dentry);
exit4:
dput(old_dentry);
-@@ -1951,20 +2207,28 @@ out:
+@@ -1953,20 +2169,26 @@
}
static inline int
if (IS_ERR(link))
goto fail;
-+ if (it == NULL)
-+ it = nd->it;
-+ else if (it != nd->it)
-+ printk("it != nd->it: tell phil@clusterfs.com\n");
-+ if (it != NULL)
-+ it->it_int_flags |= IT_FL_FOLLOWED;
++ if (it == NULL)
++ it = nd->intent;
++ else if (it != nd->intent)
++ printk("it != nd->intent: tell phil@clusterfs.com\n");
+
if (*link == '/') {
path_release(nd);
out:
if (current->link_count || res || nd->last_type!=LAST_NORM)
return res;
-@@ -1986,7 +2250,13 @@ fail:
+@@ -1990,7 +2212,13 @@
int vfs_follow_link(struct nameidata *nd, const char *link)
{
}
/* get the link contents into pagecache */
-@@ -2028,7 +2298,7 @@ int page_follow_link(struct dentry *dent
+@@ -2032,7 +2260,7 @@
{
struct page *page = NULL;
char *s = page_getlink(dentry, &page);
if (page) {
kunmap(page);
page_cache_release(page);
---- linux-2.4.20-l18/fs/nfsd/vfs.c~vfs_intent-2.4.20-vanilla Thu Nov 28 18:53:15 2002
-+++ linux-2.4.20-l18-phil/fs/nfsd/vfs.c Wed May 28 01:39:18 2003
-@@ -1291,7 +1291,7 @@ nfsd_rename(struct svc_rqst *rqstp, stru
- err = nfserr_perm;
- } else
- #endif
-- err = vfs_rename(fdir, odentry, tdir, ndentry);
-+ err = vfs_rename(fdir, odentry, tdir, ndentry, NULL);
- if (!err && EX_ISSYNC(tfhp->fh_export)) {
- nfsd_sync_dir(tdentry);
- nfsd_sync_dir(fdentry);
---- linux-2.4.20-l18/fs/open.c~vfs_intent-2.4.20-vanilla Thu Nov 28 18:53:15 2002
-+++ linux-2.4.20-l18-phil/fs/open.c Wed May 28 01:39:18 2003
+Index: lum/fs/namespace.c
+===================================================================
+--- lum.orig/fs/namespace.c 2003-11-28 13:26:21.000000000 -0500
++++ lum/fs/namespace.c 2004-06-07 17:19:43.000000000 -0400
+@@ -15,6 +15,7 @@
+ #include <linux/quotaops.h>
+ #include <linux/acct.h>
+ #include <linux/module.h>
++#include <linux/fs.h>
+
+ #include <asm/uaccess.h>
+
+@@ -48,6 +49,7 @@
+ INIT_LIST_HEAD(&mnt->mnt_child);
+ INIT_LIST_HEAD(&mnt->mnt_mounts);
+ INIT_LIST_HEAD(&mnt->mnt_list);
++ INIT_LIST_HEAD(&mnt->mnt_lustre_list);
+ if (name) {
+ int size = strlen(name)+1;
+ char * newname = kmalloc(size, GFP_KERNEL);
+@@ -98,6 +100,7 @@
+ {
+ old_nd->dentry = mnt->mnt_mountpoint;
+ old_nd->mnt = mnt->mnt_parent;
++ UNPIN(old_nd->dentry, old_nd->mnt, 1);
+ mnt->mnt_parent = mnt;
+ mnt->mnt_mountpoint = mnt->mnt_root;
+ list_del_init(&mnt->mnt_child);
+@@ -109,6 +112,7 @@
+ {
+ mnt->mnt_parent = mntget(nd->mnt);
+ mnt->mnt_mountpoint = dget(nd->dentry);
++ PIN(nd->dentry, nd->mnt, 1);
+ list_add(&mnt->mnt_hash, mount_hashtable+hash(nd->mnt, nd->dentry));
+ list_add_tail(&mnt->mnt_child, &nd->mnt->mnt_mounts);
+ nd->dentry->d_mounted++;
+@@ -151,6 +155,9 @@
+ {
+ 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);
+ kill_super(sb);
+ }
+@@ -286,7 +293,7 @@
+ }
+ }
+
+-static int do_umount(struct vfsmount *mnt, int flags)
++int do_umount(struct vfsmount *mnt, int flags)
+ {
+ struct super_block * sb = mnt->mnt_sb;
+ int retval = 0;
+@@ -302,6 +309,8 @@
+ */
+
+ 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();
+@@ -488,14 +497,17 @@
+ {
+ struct nameidata old_nd;
+ struct vfsmount *mnt = NULL;
++ struct lookup_intent it = { .it_op = IT_GETATTR };
+ int err = mount_is_safe(nd);
+ if (err)
+ return err;
+ if (!old_name || !*old_name)
+ return -EINVAL;
+- err = path_lookup(old_name, LOOKUP_POSITIVE|LOOKUP_FOLLOW, &old_nd);
+- if (err)
++ err = path_lookup_it(old_name, LOOKUP_POSITIVE|LOOKUP_FOLLOW, &old_nd, &it);
++ if (err) {
++ intent_release(&it);
+ return err;
++ }
+
+ down_write(¤t->namespace->sem);
+ err = -EINVAL;
+@@ -518,6 +530,7 @@
+ }
+
+ up_write(¤t->namespace->sem);
++ intent_release(&it);
+ path_release(&old_nd);
+ return err;
+ }
+@@ -701,6 +714,7 @@
+ unsigned long flags, void *data_page)
+ {
+ struct nameidata nd;
++ struct lookup_intent it = { .it_op = IT_GETATTR };
+ int retval = 0;
+ int mnt_flags = 0;
+
+@@ -725,9 +739,11 @@
+ flags &= ~(MS_NOSUID|MS_NOEXEC|MS_NODEV);
+
+ /* ... and get the mountpoint */
+- retval = path_lookup(dir_name, LOOKUP_FOLLOW|LOOKUP_POSITIVE, &nd);
+- if (retval)
++ retval = path_lookup_it(dir_name, LOOKUP_FOLLOW|LOOKUP_POSITIVE, &nd, &it);
++ if (retval) {
++ intent_release(&it);
+ return retval;
++ }
+
+ if (flags & MS_REMOUNT)
+ retval = do_remount(&nd, flags & ~MS_REMOUNT, mnt_flags,
+@@ -739,6 +755,8 @@
+ else
+ retval = do_add_mount(&nd, type_page, flags, mnt_flags,
+ dev_name, data_page);
++
++ intent_release(&it);
+ path_release(&nd);
+ return retval;
+ }
+@@ -904,6 +922,8 @@
+ {
+ struct vfsmount *tmp;
+ struct nameidata new_nd, old_nd, parent_nd, root_parent, user_nd;
++ struct lookup_intent new_it = { .it_op = IT_GETATTR };
++ struct lookup_intent old_it = { .it_op = IT_GETATTR };
+ int error;
+
+ if (!capable(CAP_SYS_ADMIN))
+@@ -911,14 +931,14 @@
+
+ lock_kernel();
+
+- error = __user_walk(new_root, LOOKUP_POSITIVE|LOOKUP_FOLLOW|LOOKUP_DIRECTORY, &new_nd);
++ error = __user_walk_it(new_root, LOOKUP_POSITIVE|LOOKUP_FOLLOW|LOOKUP_DIRECTORY, &new_nd, &new_it);
+ if (error)
+ goto out0;
+ error = -EINVAL;
+ if (!check_mnt(new_nd.mnt))
+ goto out1;
+
+- error = __user_walk(put_old, LOOKUP_POSITIVE|LOOKUP_FOLLOW|LOOKUP_DIRECTORY, &old_nd);
++ error = __user_walk_it(put_old, LOOKUP_POSITIVE|LOOKUP_FOLLOW|LOOKUP_DIRECTORY, &old_nd, &old_it);
+ if (error)
+ goto out1;
+
+@@ -973,8 +993,10 @@
+ up(&old_nd.dentry->d_inode->i_zombie);
+ up_write(¤t->namespace->sem);
+ path_release(&user_nd);
++ intent_release(&old_it);
+ path_release(&old_nd);
+ out1:
++ intent_release(&new_it);
+ path_release(&new_nd);
+ out0:
+ unlock_kernel();
+Index: lum/fs/open.c
+===================================================================
+--- lum.orig/fs/open.c 2003-08-25 07:44:43.000000000 -0400
++++ lum/fs/open.c 2004-06-07 17:19:43.000000000 -0400
@@ -19,6 +19,8 @@
#include <asm/uaccess.h>
int vfs_statfs(struct super_block *sb, struct statfs *buf)
{
-@@ -95,9 +97,10 @@ void fd_install(unsigned int fd, struct
+@@ -95,9 +97,10 @@
write_unlock(&files->file_lock);
}
int error;
struct iattr newattrs;
-@@ -108,7 +111,14 @@ int do_truncate(struct dentry *dentry, l
+@@ -109,7 +112,13 @@
down(&inode->i_sem);
newattrs.ia_size = length;
newattrs.ia_valid = ATTR_SIZE | ATTR_CTIME;
+ newattrs.ia_valid |= ATTR_FROM_OPEN;
+ if (op->setattr_raw) {
+ newattrs.ia_valid |= ATTR_RAW;
-+ newattrs.ia_ctime = CURRENT_TIME;
+ error = op->setattr_raw(inode, &newattrs);
-+ } else
++ } else
+ error = notify_change(dentry, &newattrs);
up(&inode->i_sem);
+ up_write(&inode->i_alloc_sem);
return error;
- }
-@@ -118,12 +128,13 @@ static inline long do_sys_truncate(const
+@@ -120,12 +129,13 @@
struct nameidata nd;
struct inode * inode;
int error;
if (error)
goto out;
inode = nd.dentry->d_inode;
-@@ -163,11 +174,13 @@ static inline long do_sys_truncate(const
+@@ -165,11 +175,13 @@
error = locks_verify_truncate(inode, NULL, length);
if (!error) {
DQUOT_INIT(inode);
- error = do_truncate(nd.dentry, length);
-+ intent_release(nd.dentry, &it);
++ intent_release(&it);
+ error = do_truncate(nd.dentry, length, 0);
}
put_write_access(inode);
dput_and_out:
-+ intent_release(nd.dentry, &it);
++ intent_release(&it);
path_release(&nd);
out:
return error;
-@@ -215,7 +228,7 @@ static inline long do_sys_ftruncate(unsi
+@@ -217,7 +229,7 @@
error = locks_verify_truncate(inode, file, length);
if (!error)
out_putf:
fput(file);
out:
-@@ -260,11 +273,13 @@ asmlinkage long sys_utime(char * filenam
+@@ -262,11 +274,13 @@
struct inode * inode;
struct iattr newattrs;
error = -EROFS;
if (IS_RDONLY(inode))
goto dput_and_out;
-@@ -279,11 +294,29 @@ asmlinkage long sys_utime(char * filenam
+@@ -281,11 +295,25 @@
goto dput_and_out;
newattrs.ia_valid |= ATTR_ATIME_SET | ATTR_MTIME_SET;
+ goto dput_and_out;
+ }
+
-+ error = -EROFS;
-+ if (IS_RDONLY(inode))
-+ goto dput_and_out;
-+
+ error = -EPERM;
+ if (!times) {
if (current->fsuid != inode->i_uid &&
error = notify_change(nd.dentry, &newattrs);
dput_and_out:
path_release(&nd);
-@@ -304,12 +337,14 @@ asmlinkage long sys_utimes(char * filena
+@@ -306,12 +334,14 @@
struct inode * inode;
struct iattr newattrs;
error = -EROFS;
if (IS_RDONLY(inode))
goto dput_and_out;
-@@ -324,7 +359,20 @@ asmlinkage long sys_utimes(char * filena
+@@ -326,7 +356,20 @@
newattrs.ia_atime = times[0].tv_sec;
newattrs.ia_mtime = times[1].tv_sec;
newattrs.ia_valid |= ATTR_ATIME_SET | ATTR_MTIME_SET;
if (current->fsuid != inode->i_uid &&
(error = permission(inode,MAY_WRITE)) != 0)
goto dput_and_out;
-@@ -347,6 +395,7 @@ asmlinkage long sys_access(const char *
+@@ -349,6 +392,7 @@
int old_fsuid, old_fsgid;
kernel_cap_t old_cap;
int res;
if (mode & ~S_IRWXO) /* where's F_OK, X_OK, W_OK, R_OK? */
return -EINVAL;
-@@ -364,13 +413,14 @@ asmlinkage long sys_access(const char *
+@@ -366,13 +410,14 @@
else
current->cap_effective = current->cap_permitted;
if(!res && (mode & S_IWOTH) && IS_RDONLY(nd.dentry->d_inode)
&& !special_file(nd.dentry->d_inode->i_mode))
res = -EROFS;
-+ intent_release(nd.dentry, &it);
++ intent_release(&it);
path_release(&nd);
}
-@@ -385,8 +435,9 @@ asmlinkage long sys_chdir(const char * f
+@@ -387,8 +432,9 @@
{
int error;
struct nameidata nd;
-+ struct lookup_intent it = { .it_op = IT_GETATTR };
++ struct lookup_intent it = { .it_op = IT_CHDIR };
- error = __user_walk(filename,LOOKUP_POSITIVE|LOOKUP_FOLLOW|LOOKUP_DIRECTORY,&nd);
+ error = __user_walk_it(filename,LOOKUP_POSITIVE|LOOKUP_FOLLOW|LOOKUP_DIRECTORY,&nd, &it);
if (error)
goto out;
-@@ -397,6 +448,7 @@ asmlinkage long sys_chdir(const char * f
+@@ -399,6 +445,7 @@
set_fs_pwd(current->fs, nd.mnt, nd.dentry);
dput_and_out:
-+ intent_release(nd.dentry, &it);
++ intent_release(&it);
path_release(&nd);
out:
return error;
-@@ -436,9 +488,10 @@ asmlinkage long sys_chroot(const char *
+@@ -438,9 +485,10 @@
{
int error;
struct nameidata nd;
-+ struct lookup_intent it = { .it_op = IT_GETATTR };
++ struct lookup_intent it = { .it_op = IT_GETATTR };
- error = __user_walk(filename, LOOKUP_POSITIVE | LOOKUP_FOLLOW |
- LOOKUP_DIRECTORY | LOOKUP_NOALT, &nd);
+ error = __user_walk_it(filename, LOOKUP_POSITIVE | LOOKUP_FOLLOW |
-+ LOOKUP_DIRECTORY | LOOKUP_NOALT, &nd, &it);
++ LOOKUP_DIRECTORY | LOOKUP_NOALT, &nd, &it);
if (error)
goto out;
-@@ -454,6 +507,7 @@ asmlinkage long sys_chroot(const char *
+@@ -456,39 +504,56 @@
set_fs_altroot();
error = 0;
dput_and_out:
-+ intent_release(nd.dentry, &it);
++ intent_release(&it);
path_release(&nd);
out:
return error;
-@@ -508,6 +562,18 @@ asmlinkage long sys_chmod(const char * f
- if (IS_RDONLY(inode))
- goto dput_and_out;
+ }
+
+-asmlinkage long sys_fchmod(unsigned int fd, mode_t mode)
++int chmod_common(struct dentry *dentry, mode_t mode)
+ {
+- struct inode * inode;
+- struct dentry * dentry;
+- struct file * file;
+- int err = -EBADF;
++ struct inode *inode = dentry->d_inode;
+ struct iattr newattrs;
++ int err = -EROFS;
+
+- file = fget(fd);
+- if (!file)
++ if (IS_RDONLY(inode))
+ goto out;
+- dentry = file->f_dentry;
+- inode = dentry->d_inode;
+ if (inode->i_op->setattr_raw) {
-+ struct inode_operations *op = nd.dentry->d_inode->i_op;
-+
+ newattrs.ia_mode = mode;
+ newattrs.ia_valid = ATTR_MODE | ATTR_CTIME;
+ newattrs.ia_valid |= ATTR_RAW;
-+ error = op->setattr_raw(inode, &newattrs);
++ err = inode->i_op->setattr_raw(inode, &newattrs);
+ /* the file system wants to use normal vfs path now */
-+ if (error != -EOPNOTSUPP)
-+ goto dput_and_out;
++ if (err != -EOPNOTSUPP)
++ goto out;
+ }
-+
- error = -EPERM;
+
+- err = -EROFS;
+- if (IS_RDONLY(inode))
+- goto out_putf;
+ err = -EPERM;
if (IS_IMMUTABLE(inode) || IS_APPEND(inode))
- goto dput_and_out;
-@@ -538,6 +604,20 @@ static int chown_common(struct dentry *
+- goto out_putf;
++ goto out;
++
+ if (mode == (mode_t) -1)
+ mode = inode->i_mode;
+ newattrs.ia_mode = (mode & S_IALLUGO) | (inode->i_mode & ~S_IALLUGO);
+ newattrs.ia_valid = ATTR_MODE | ATTR_CTIME;
+ err = notify_change(dentry, &newattrs);
+
+-out_putf:
++out:
++ return err;
++}
++
++asmlinkage long sys_fchmod(unsigned int fd, mode_t mode)
++{
++ struct file * file;
++ int err = -EBADF;
++
++ file = fget(fd);
++ if (!file)
++ goto out;
++
++ err = chmod_common(file->f_dentry, mode);
++
+ fput(file);
+ out:
+ return err;
+@@ -497,30 +562,14 @@
+ asmlinkage long sys_chmod(const char * filename, mode_t mode)
+ {
+ struct nameidata nd;
+- struct inode * inode;
+ int error;
+- struct iattr newattrs;
+
+ error = user_path_walk(filename, &nd);
+ if (error)
+ goto out;
+- inode = nd.dentry->d_inode;
+-
+- error = -EROFS;
+- if (IS_RDONLY(inode))
+- goto dput_and_out;
+
+- error = -EPERM;
+- if (IS_IMMUTABLE(inode) || IS_APPEND(inode))
+- goto dput_and_out;
++ error = chmod_common(nd.dentry, mode);
+
+- if (mode == (mode_t) -1)
+- mode = inode->i_mode;
+- newattrs.ia_mode = (mode & S_IALLUGO) | (inode->i_mode & ~S_IALLUGO);
+- newattrs.ia_valid = ATTR_MODE | ATTR_CTIME;
+- error = notify_change(nd.dentry, &newattrs);
+-
+-dput_and_out:
+ path_release(&nd);
+ out:
+ return error;
+@@ -540,6 +589,20 @@
error = -EROFS;
if (IS_RDONLY(inode))
goto out;
+
+ newattrs.ia_uid = user;
+ newattrs.ia_gid = group;
-+ newattrs.ia_valid = ATTR_UID | ATTR_GID;
++ newattrs.ia_valid = ATTR_UID | ATTR_GID | ATTR_CTIME;
+ newattrs.ia_valid |= ATTR_RAW;
+ error = op->setattr_raw(inode, &newattrs);
+ /* the file system wants to use normal vfs path now */
error = -EPERM;
if (IS_IMMUTABLE(inode) || IS_APPEND(inode))
goto out;
-@@ -638,10 +718,12 @@ asmlinkage long sys_fchown(unsigned int
- * 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)
+@@ -644,6 +707,7 @@
{
int namei_flags, error;
struct nameidata nd;
-+ struct lookup_intent it = { .it_op = IT_OPEN, .it_flags = flags };
++ struct lookup_intent it = { .it_op = IT_OPEN };
namei_flags = flags;
if ((namei_flags+1) & O_ACCMODE)
-@@ -649,14 +731,15 @@ struct file *filp_open(const char * file
+@@ -651,14 +715,15 @@
if (namei_flags & O_TRUNC)
namei_flags |= 2;
{
struct file * f;
struct inode *inode;
-@@ -699,6 +782,7 @@ struct file *dentry_open(struct dentry *
+@@ -695,12 +760,15 @@
+ }
+
+ if (f->f_op && f->f_op->open) {
++ f->f_it = it;
+ error = f->f_op->open(inode,f);
++ f->f_it = NULL;
+ if (error)
+ goto cleanup_all;
}
f->f_flags &= ~(O_CREAT | O_EXCL | O_NOCTTY | O_TRUNC);
-+ intent_release(dentry, it);
++ intent_release(it);
return f;
cleanup_all:
-@@ -713,11 +797,17 @@ cleanup_all:
+@@ -715,11 +783,17 @@
cleanup_file:
put_filp(f);
cleanup_dentry:
-+ intent_release(dentry, it);
++ intent_release(it);
dput(dentry);
mntput(mnt);
return ERR_PTR(error);
/*
* Find an empty file descriptor entry, and mark it busy.
*/
---- linux-2.4.20-l18/fs/stat.c~vfs_intent-2.4.20-vanilla Thu Sep 13 19:04:43 2001
-+++ linux-2.4.20-l18-phil/fs/stat.c Wed May 28 01:39:18 2003
-@@ -135,13 +135,15 @@ static int cp_new_stat(struct inode * in
+Index: lum/fs/stat.c
+===================================================================
+--- lum.orig/fs/stat.c 2003-08-25 07:44:43.000000000 -0400
++++ lum/fs/stat.c 2004-06-07 17:19:43.000000000 -0400
+@@ -17,10 +17,12 @@
+ * Revalidate the inode. This is required for proper NFS attribute caching.
+ */
+ static __inline__ int
+-do_revalidate(struct dentry *dentry)
++do_revalidate(struct dentry *dentry, struct lookup_intent *it)
+ {
+ struct inode * inode = dentry->d_inode;
+- if (inode->i_op && inode->i_op->revalidate)
++ if (inode->i_op && inode->i_op->revalidate_it)
++ return inode->i_op->revalidate_it(dentry, it);
++ else if (inode->i_op && inode->i_op->revalidate)
+ return inode->i_op->revalidate(dentry);
+ return 0;
+ }
+@@ -137,13 +139,15 @@
asmlinkage long sys_stat(char * filename, struct __old_kernel_stat * statbuf)
{
struct nameidata nd;
- error = user_path_walk(filename, &nd);
+ error = user_path_walk_it(filename, &nd, &it);
if (!error) {
- error = do_revalidate(nd.dentry);
+- error = do_revalidate(nd.dentry);
++ error = do_revalidate(nd.dentry, &it);
if (!error)
error = cp_old_stat(nd.dentry->d_inode, statbuf);
-+ intent_release(nd.dentry, &it);
++ intent_release(&it);
path_release(&nd);
}
return error;
-@@ -151,13 +153,15 @@ asmlinkage long sys_stat(char * filename
+@@ -153,13 +157,15 @@
asmlinkage long sys_newstat(char * filename, struct stat * statbuf)
{
struct nameidata nd;
- error = user_path_walk(filename, &nd);
+ error = user_path_walk_it(filename, &nd, &it);
if (!error) {
- error = do_revalidate(nd.dentry);
+- error = do_revalidate(nd.dentry);
++ error = do_revalidate(nd.dentry, &it);
if (!error)
error = cp_new_stat(nd.dentry->d_inode, statbuf);
-+ intent_release(nd.dentry, &it);
++ intent_release(&it);
path_release(&nd);
}
return error;
-@@ -172,13 +176,15 @@ asmlinkage long sys_newstat(char * filen
+@@ -174,13 +180,15 @@
asmlinkage long sys_lstat(char * filename, struct __old_kernel_stat * statbuf)
{
struct nameidata nd;
- error = user_path_walk_link(filename, &nd);
+ error = user_path_walk_link_it(filename, &nd, &it);
if (!error) {
- error = do_revalidate(nd.dentry);
+- error = do_revalidate(nd.dentry);
++ error = do_revalidate(nd.dentry, &it);
if (!error)
error = cp_old_stat(nd.dentry->d_inode, statbuf);
-+ intent_release(nd.dentry, &it);
++ intent_release(&it);
path_release(&nd);
}
return error;
-@@ -189,13 +195,15 @@ asmlinkage long sys_lstat(char * filenam
+@@ -191,13 +199,15 @@
asmlinkage long sys_newlstat(char * filename, struct stat * statbuf)
{
struct nameidata nd;
- error = user_path_walk_link(filename, &nd);
+ error = user_path_walk_link_it(filename, &nd, &it);
if (!error) {
- error = do_revalidate(nd.dentry);
+- error = do_revalidate(nd.dentry);
++ error = do_revalidate(nd.dentry, &it);
if (!error)
error = cp_new_stat(nd.dentry->d_inode, statbuf);
-+ intent_release(nd.dentry, &it);
++ intent_release(&it);
path_release(&nd);
}
return error;
-@@ -333,12 +341,14 @@ asmlinkage long sys_stat64(char * filena
+@@ -218,7 +228,7 @@
+ if (f) {
+ struct dentry * dentry = f->f_dentry;
+
+- err = do_revalidate(dentry);
++ err = do_revalidate(dentry, NULL);
+ if (!err)
+ err = cp_old_stat(dentry->d_inode, statbuf);
+ fput(f);
+@@ -237,7 +247,7 @@
+ if (f) {
+ struct dentry * dentry = f->f_dentry;
+
+- err = do_revalidate(dentry);
++ err = do_revalidate(dentry, NULL);
+ if (!err)
+ err = cp_new_stat(dentry->d_inode, statbuf);
+ fput(f);
+@@ -259,7 +269,7 @@
+
+ error = -EINVAL;
+ if (inode->i_op && inode->i_op->readlink &&
+- !(error = do_revalidate(nd.dentry))) {
++ !(error = do_revalidate(nd.dentry, NULL))) {
+ UPDATE_ATIME(inode);
+ error = inode->i_op->readlink(nd.dentry, buf, bufsiz);
+ }
+@@ -335,12 +345,14 @@
{
struct nameidata nd;
int error;
- error = user_path_walk(filename, &nd);
+ error = user_path_walk_it(filename, &nd, &it);
if (!error) {
- error = do_revalidate(nd.dentry);
+- error = do_revalidate(nd.dentry);
++ error = do_revalidate(nd.dentry, &it);
if (!error)
error = cp_new_stat64(nd.dentry->d_inode, statbuf);
-+ intent_release(nd.dentry, &it);
++ intent_release(&it);
path_release(&nd);
}
return error;
-@@ -348,12 +358,14 @@ asmlinkage long sys_lstat64(char * filen
+@@ -350,12 +362,14 @@
{
struct nameidata nd;
int error;
- error = user_path_walk_link(filename, &nd);
+ error = user_path_walk_link_it(filename, &nd, &it);
if (!error) {
- error = do_revalidate(nd.dentry);
+- error = do_revalidate(nd.dentry);
++ error = do_revalidate(nd.dentry, &it);
if (!error)
error = cp_new_stat64(nd.dentry->d_inode, statbuf);
-+ intent_release(nd.dentry, &it);
++ intent_release(&it);
path_release(&nd);
}
return error;
---- linux-2.4.20-l18/fs/proc/base.c~vfs_intent-2.4.20-vanilla Wed Jun 4 22:53:14 2003
-+++ linux-2.4.20-l18-phil/fs/proc/base.c Wed Jun 4 22:50:35 2003
-@@ -464,6 +464,9 @@ static int proc_pid_follow_link(struct d
-
- error = inode->u.proc_i.op.proc_get_link(inode, &nd->dentry, &nd->mnt);
- nd->last_type = LAST_BIND;
-+
-+ if (nd->it != NULL)
-+ nd->it->it_int_flags |= IT_FL_FOLLOWED;
- out:
- return error;
- }
---- linux-2.4.20-l18/include/linux/dcache.h~vfs_intent-2.4.20-vanilla Thu Nov 28 18:53:15 2002
-+++ linux-2.4.20-l18-phil/include/linux/dcache.h Sun Jun 1 22:35:10 2003
-@@ -7,6 +7,28 @@
+@@ -370,7 +384,7 @@
+ if (f) {
+ struct dentry * dentry = f->f_dentry;
+
+- err = do_revalidate(dentry);
++ err = do_revalidate(dentry, NULL);
+ if (!err)
+ err = cp_new_stat64(dentry->d_inode, statbuf);
+ fput(f);
+Index: lum/include/linux/dcache.h
+===================================================================
+--- lum.orig/include/linux/dcache.h 2002-11-28 18:53:15.000000000 -0500
++++ lum/include/linux/dcache.h 2004-06-07 17:19:44.000000000 -0400
+@@ -6,6 +6,52 @@
+ #include <asm/atomic.h>
#include <linux/mount.h>
#include <linux/kernel.h>
-
-+#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)
++#include <linux/string.h>
+
-+#define IT_FL_LOCKED (1)
-+#define IT_FL_FOLLOWED (1<<1) /* set by vfs_follow_link */
++#define IT_OPEN 0x0001
++#define IT_CREAT 0x0002
++#define IT_READDIR 0x0004
++#define IT_GETATTR 0x0008
++#define IT_LOOKUP 0x0010
++#define IT_UNLINK 0x0020
++#define IT_GETXATTR 0x0040
++#define IT_EXEC 0x0080
++#define IT_PIN 0x0100
++#define IT_CHDIR 0x0200
+
-+struct lookup_intent {
-+ int it_op;
-+ int it_mode;
-+ int it_flags;
-+ int it_disposition;
-+ int it_status;
++#define IT_FL_LOCKED 0x0001
++#define IT_FL_FOLLOWED 0x0002 /* set by vfs_follow_link */
++
++#define INTENT_MAGIC 0x19620323
++
++
++struct lustre_intent_data {
++ int it_disposition;
++ int it_status;
++ __u64 it_lock_handle;
++ void *it_data;
++ int it_lock_mode;
+ int it_int_flags;
-+ __u64 it_lock_handle[2];
-+ int it_lock_mode;
-+ void *it_data;
+};
++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_init(struct lookup_intent *it, int op, int flags)
++{
++ memset(it, 0, sizeof(*it));
++ it->it_magic = INTENT_MAGIC;
++ it->it_op = op;
++ it->it_flags = flags;
++}
+
+
/*
* linux/include/linux/dcache.h
- *
-@@ -79,6 +101,7 @@ struct dentry {
- unsigned long d_time; /* used by d_revalidate */
- struct dentry_operations *d_op;
- struct super_block * d_sb; /* The root of the dentry tree */
-+ struct lookup_intent *d_it;
- unsigned long d_vfs_flags;
- void * d_fsdata; /* fs-specific data */
+@@ -84,6 +130,8 @@
unsigned char d_iname[DNAME_INLINE_LEN]; /* small names */
-@@ -91,8 +114,15 @@ struct dentry_operations {
+ };
+
++struct nameidata;
++
+ struct dentry_operations {
+ int (*d_revalidate)(struct dentry *, int);
+ int (*d_hash) (struct dentry *, struct qstr *);
+@@ -91,8 +139,22 @@
int (*d_delete)(struct dentry *);
void (*d_release)(struct dentry *);
void (*d_iput)(struct dentry *, struct inode *);
-+ int (*d_revalidate2)(struct dentry *, int, struct lookup_intent *);
-+ void (*d_intent_release)(struct dentry *, struct lookup_intent *);
++ int (*d_revalidate_it)(struct dentry *, int, struct nameidata *, struct lookup_intent *);
++ void (*d_pin)(struct dentry *, struct vfsmount * , int);
++ void (*d_unpin)(struct dentry *, struct vfsmount *, int);
};
++#define PIN(de,mnt,flag) if (de && de->d_op && de->d_op->d_pin) \
++ de->d_op->d_pin(de, mnt, flag);
++#define UNPIN(de,mnt,flag) if (de && de->d_op && de->d_op->d_unpin) \
++ de->d_op->d_unpin(de, mnt, flag);
++
++
+/* defined in fs/namei.c */
-+extern void intent_release(struct dentry *de, struct lookup_intent *it);
++extern void intent_release(struct lookup_intent *it);
+/* defined in fs/dcache.c */
+extern void __d_rehash(struct dentry * entry, int lock);
+
/* the dentry parameter passed to d_hash and d_compare is the parent
* directory of the entries to be compared. It is used in case these
* functions need any directory specific information for determining
-@@ -124,6 +154,7 @@ d_iput: no no yes
+@@ -124,6 +186,7 @@
* s_nfsd_free_path semaphore will be down
*/
#define DCACHE_REFERENCED 0x0008 /* Recently used, don't discard. */
extern spinlock_t dcache_lock;
---- linux-2.4.20-l18/include/linux/fs.h~vfs_intent-2.4.20-vanilla Wed May 28 01:39:17 2003
-+++ linux-2.4.20-l18-phil/include/linux/fs.h Sun Jun 1 22:07:11 2003
-@@ -338,6 +338,8 @@ extern void set_bh_page(struct buffer_he
+Index: lum/include/linux/fs.h
+===================================================================
+--- lum.orig/include/linux/fs.h 2004-06-03 16:32:26.000000000 -0400
++++ lum/include/linux/fs.h 2004-06-07 17:24:37.000000000 -0400
+@@ -73,6 +73,7 @@
+
+ #define FMODE_READ 1
+ #define FMODE_WRITE 2
++#define FMODE_EXEC 4
+
+ #define READ 0
+ #define WRITE 1
+@@ -340,6 +341,9 @@
#define ATTR_MTIME_SET 256
#define ATTR_FORCE 512 /* Not a change, but a change it */
#define ATTR_ATTR_FLAG 1024
-+#define ATTR_RAW 2048 /* file system, not vfs will massage attrs */
-+#define ATTR_FROM_OPEN 4096 /* called from open path, ie O_TRUNC */
++#define ATTR_RAW 0x0800 /* file system, not vfs will massage attrs */
++#define ATTR_FROM_OPEN 0x1000 /* called from open path, ie O_TRUNC */
++#define ATTR_CTIME_SET 0x2000
/*
* This is the Inode Attributes structure, used for notify_change(). It
-@@ -542,6 +544,7 @@ struct file {
+@@ -478,6 +482,7 @@
+ struct pipe_inode_info *i_pipe;
+ struct block_device *i_bdev;
+ struct char_device *i_cdev;
++ void *i_filterdata;
+
+ unsigned long i_dnotify_mask; /* Directory notify events */
+ struct dnotify_struct *i_dnotify; /* for directory notifications */
+@@ -582,6 +587,7 @@
/* needed for tty driver, and maybe others */
void *private_data;
-+ struct lookup_intent *f_intent;
++ struct lookup_intent *f_it;
/* preallocated helper kiobuf to speedup O_DIRECT */
struct kiobuf *f_iobuf;
-@@ -661,6 +664,7 @@ struct nameidata {
+@@ -702,6 +708,7 @@
struct qstr last;
unsigned int flags;
int last_type;
-+ struct lookup_intent *it;
++ struct lookup_intent *intent;
};
- #define DQUOT_USR_ENABLED 0x01 /* User diskquotas enabled */
-@@ -794,7 +798,9 @@ extern int vfs_symlink(struct inode *, s
+ /*
+@@ -822,7 +829,8 @@
extern int vfs_link(struct dentry *, struct inode *, struct dentry *);
extern int vfs_rmdir(struct inode *, struct dentry *);
extern int vfs_unlink(struct inode *, struct dentry *);
-extern int vfs_rename(struct inode *, struct dentry *, struct inode *, struct dentry *);
+int vfs_rename(struct inode *old_dir, struct dentry *old_dentry,
-+ struct inode *new_dir, struct dentry *new_dentry,
-+ struct lookup_intent *it);
++ struct inode *new_dir, struct dentry *new_dentry);
/*
* File types
-@@ -855,20 +861,33 @@ struct file_operations {
+@@ -884,21 +892,32 @@
+
struct inode_operations {
int (*create) (struct inode *,struct dentry *,int);
++ int (*create_it) (struct inode *,struct dentry *,int, struct lookup_intent *);
struct dentry * (*lookup) (struct inode *,struct dentry *);
-+ struct dentry * (*lookup2) (struct inode *,struct dentry *, struct lookup_intent *);
++ struct dentry * (*lookup_it) (struct inode *,struct dentry *, struct nameidata *, struct lookup_intent *, int flags);
int (*link) (struct dentry *,struct inode *,struct dentry *);
-+ int (*link2) (struct inode *,struct inode *, const char *, int);
++ int (*link_raw) (struct nameidata *,struct nameidata *);
int (*unlink) (struct inode *,struct dentry *);
-+ int (*unlink2) (struct inode *, const char *, int);
++ int (*unlink_raw) (struct nameidata *);
int (*symlink) (struct inode *,struct dentry *,const char *);
-+ int (*symlink2) (struct inode *, const char *, int, const char *);
++ int (*symlink_raw) (struct nameidata *,const char *);
int (*mkdir) (struct inode *,struct dentry *,int);
-+ int (*mkdir2) (struct inode *, const char *, int,int);
++ int (*mkdir_raw) (struct nameidata *,int);
int (*rmdir) (struct inode *,struct dentry *);
-+ int (*rmdir2) (struct inode *, const char *, int);
++ int (*rmdir_raw) (struct nameidata *);
int (*mknod) (struct inode *,struct dentry *,int,int);
-+ int (*mknod2) (struct inode *, const char *, int,int,int);
++ int (*mknod_raw) (struct nameidata *,int,dev_t);
int (*rename) (struct inode *, struct dentry *,
struct inode *, struct dentry *);
-+ int (*rename2) (struct inode *, struct inode *,
-+ const char *oldname, int oldlen,
-+ const char *newname, int newlen);
++ int (*rename_raw) (struct nameidata *, struct nameidata *);
int (*readlink) (struct dentry *, char *,int);
int (*follow_link) (struct dentry *, struct nameidata *);
-+ int (*follow_link2) (struct dentry *, struct nameidata *,
-+ struct lookup_intent *it);
void (*truncate) (struct inode *);
int (*permission) (struct inode *, int);
int (*revalidate) (struct dentry *);
++ int (*revalidate_it) (struct dentry *, struct lookup_intent *);
int (*setattr) (struct dentry *, struct iattr *);
+ int (*setattr_raw) (struct inode *, struct iattr *);
int (*getattr) (struct dentry *, struct iattr *);
int (*setxattr) (struct dentry *, const char *, void *, size_t, int);
ssize_t (*getxattr) (struct dentry *, const char *, void *, size_t);
-@@ -1070,10 +1089,14 @@ static inline int get_lease(struct inode
+@@ -938,6 +957,7 @@
+ 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 *);
+
+ /* Following are for knfsd to interact with "interesting" filesystems
+ * Currently just reiserfs, but possibly FAT and others later
+@@ -1094,10 +1114,14 @@
asmlinkage long sys_open(const char *, int, int);
asmlinkage long sys_close(unsigned int); /* yes, it's really unsigned */
extern int filp_close(struct file *, fl_owner_t id);
extern char * getname(const char *);
-@@ -1335,6 +1358,7 @@ typedef int (*read_actor_t)(read_descrip
+@@ -1386,6 +1410,7 @@
extern loff_t default_llseek(struct file *file, loff_t offset, int origin);
extern int FASTCALL(__user_walk(const char *, unsigned, struct nameidata *));
extern int FASTCALL(path_init(const char *, unsigned, struct nameidata *));
extern int FASTCALL(path_walk(const char *, struct nameidata *));
extern int FASTCALL(path_lookup(const char *, unsigned, struct nameidata *));
-@@ -1346,6 +1370,8 @@ extern struct dentry * lookup_one_len(co
- extern struct dentry * lookup_hash(struct qstr *, struct dentry *);
+@@ -1394,9 +1419,11 @@
+ extern int follow_down(struct vfsmount **, struct dentry **);
+ extern int follow_up(struct vfsmount **, struct dentry **);
+ extern struct dentry * lookup_one_len(const char *, struct dentry *, int);
+-extern struct dentry * lookup_hash(struct qstr *, struct dentry *);
++extern struct dentry * lookup_hash(struct qstr *, struct dentry *, struct nameidata *);
#define user_path_walk(name,nd) __user_walk(name, LOOKUP_FOLLOW|LOOKUP_POSITIVE, nd)
#define user_path_walk_link(name,nd) __user_walk(name, LOOKUP_POSITIVE, nd)
+#define user_path_walk_it(name,nd,it) __user_walk_it(name, LOOKUP_FOLLOW|LOOKUP_POSITIVE, nd, it)
+#define user_path_walk_link_it(name,nd,it) __user_walk_it(name, LOOKUP_POSITIVE, nd, it)
+ extern void inode_init_once(struct inode *);
extern void iput(struct inode *);
- extern void force_delete(struct inode *);
-@@ -1455,6 +1481,8 @@ extern struct file_operations generic_ro
+@@ -1500,6 +1527,8 @@
extern int vfs_readlink(struct dentry *, char *, int, const char *);
extern int vfs_follow_link(struct nameidata *, const char *);
extern int page_readlink(struct dentry *, char *, int);
extern int page_follow_link(struct dentry *, struct nameidata *);
extern struct inode_operations page_symlink_inode_operations;
---- linux-2.4.20-l18/kernel/ksyms.c~vfs_intent-2.4.20-vanilla Wed May 28 01:39:18 2003
-+++ linux-2.4.20-l18-phil/kernel/ksyms.c Wed May 28 01:39:18 2003
-@@ -269,6 +269,7 @@ EXPORT_SYMBOL(read_cache_page);
- EXPORT_SYMBOL(set_page_dirty);
+Index: lum/include/linux/fs_struct.h
+===================================================================
+--- lum.orig/include/linux/fs_struct.h 2001-07-13 18:10:44.000000000 -0400
++++ lum/include/linux/fs_struct.h 2004-06-07 17:19:44.000000000 -0400
+@@ -34,10 +34,12 @@
+ write_lock(&fs->lock);
+ old_root = fs->root;
+ old_rootmnt = fs->rootmnt;
++ PIN(dentry, mnt, 1);
+ fs->rootmnt = mntget(mnt);
+ fs->root = dget(dentry);
+ write_unlock(&fs->lock);
+ if (old_root) {
++ UNPIN(old_root, old_rootmnt, 1);
+ dput(old_root);
+ mntput(old_rootmnt);
+ }
+@@ -57,10 +59,12 @@
+ write_lock(&fs->lock);
+ old_pwd = fs->pwd;
+ old_pwdmnt = fs->pwdmnt;
++ PIN(dentry, mnt, 0);
+ fs->pwdmnt = mntget(mnt);
+ fs->pwd = dget(dentry);
+ write_unlock(&fs->lock);
+ if (old_pwd) {
++ UNPIN(old_pwd, old_pwdmnt, 0);
+ dput(old_pwd);
+ mntput(old_pwdmnt);
+ }
+Index: lum/include/linux/mount.h
+===================================================================
+--- lum.orig/include/linux/mount.h 2001-10-05 16:05:55.000000000 -0400
++++ lum/include/linux/mount.h 2004-06-07 17:19:44.000000000 -0400
+@@ -29,6 +29,8 @@
+ int mnt_flags;
+ char *mnt_devname; /* Name of device e.g. /dev/dsk/hda1 */
+ struct list_head mnt_list;
++ 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)
+@@ -39,6 +41,7 @@
+ }
+
+ extern void __mntput(struct vfsmount *mnt);
++extern int do_umount(struct vfsmount *mnt, int flags);
+
+ static inline void mntput(struct vfsmount *mnt)
+ {
+Index: lum/kernel/exit.c
+===================================================================
+--- lum.orig/kernel/exit.c 2002-11-28 18:53:15.000000000 -0500
++++ lum/kernel/exit.c 2004-06-07 17:19:44.000000000 -0400
+@@ -238,11 +238,14 @@
+ {
+ /* No need to hold fs->lock if we are killing it */
+ if (atomic_dec_and_test(&fs->count)) {
++ UNPIN(fs->pwd, fs->pwdmnt, 0);
++ UNPIN(fs->root, fs->rootmnt, 1);
+ dput(fs->root);
+ mntput(fs->rootmnt);
+ dput(fs->pwd);
+ mntput(fs->pwdmnt);
+ if (fs->altroot) {
++ UNPIN(fs->altroot, fs->altrootmnt, 1);
+ dput(fs->altroot);
+ mntput(fs->altrootmnt);
+ }
+Index: lum/kernel/fork.c
+===================================================================
+--- lum.orig/kernel/fork.c 2003-11-28 13:26:21.000000000 -0500
++++ lum/kernel/fork.c 2004-06-07 17:19:44.000000000 -0400
+@@ -386,10 +386,13 @@
+ fs->umask = old->umask;
+ read_lock(&old->lock);
+ fs->rootmnt = mntget(old->rootmnt);
++ PIN(old->pwd, old->pwdmnt, 0);
++ PIN(old->root, old->rootmnt, 1);
+ fs->root = dget(old->root);
+ fs->pwdmnt = mntget(old->pwdmnt);
+ fs->pwd = dget(old->pwd);
+ if (old->altroot) {
++ PIN(old->altroot, old->altrootmnt, 1);
+ fs->altrootmnt = mntget(old->altrootmnt);
+ fs->altroot = dget(old->altroot);
+ } else {
+Index: lum/kernel/ksyms.c
+===================================================================
+--- lum.orig/kernel/ksyms.c 2004-06-03 16:32:26.000000000 -0400
++++ lum/kernel/ksyms.c 2004-06-07 17:25:11.000000000 -0400
+@@ -275,6 +275,8 @@
+ EXPORT_SYMBOL(mark_page_accessed);
EXPORT_SYMBOL(vfs_readlink);
EXPORT_SYMBOL(vfs_follow_link);
+EXPORT_SYMBOL(vfs_follow_link_it);
++EXPORT_SYMBOL(do_umount);
EXPORT_SYMBOL(page_readlink);
EXPORT_SYMBOL(page_follow_link);
EXPORT_SYMBOL(page_symlink_inode_operations);
-
-_
+Index: lum/net/unix/af_unix.c
+===================================================================
+--- lum.orig/net/unix/af_unix.c 2002-11-28 18:53:16.000000000 -0500
++++ lum/net/unix/af_unix.c 2004-06-07 17:19:44.000000000 -0400
+@@ -703,7 +703,7 @@
+ /*
+ * Do the final lookup.
+ */
+- dentry = lookup_hash(&nd.last, nd.dentry);
++ dentry = lookup_hash(&nd.last, nd.dentry, &nd);
+ err = PTR_ERR(dentry);
+ if (IS_ERR(dentry))
+ goto out_mknod_unlock;
+Index: lum/drivers/hotplug/pci_hotplug_core.c
+===================================================================
+--- lum.orig/drivers/hotplug/pci_hotplug_core.c 2003-11-28 13:26:20.000000000 -0500
++++ lum/drivers/hotplug/pci_hotplug_core.c 2004-06-08 01:59:32.000000000 -0400
+@@ -478,7 +478,7 @@
+
+ down(&parent->d_inode->i_sem);
+
+- d = lookup_hash(&qstr,parent);
++ d = lookup_hash(&qstr,parent,NULL);
+
+ error = PTR_ERR(d);
+ if (!IS_ERR(d)) {
git://git.whamcloud.com / fs / lustre-release.git / blobdiff