kernel/ksyms.c | 1
13 files changed, 591 insertions(+), 133 deletions(-)
---- linux-2.4.20-hp4-pnnl13/fs/exec.c~vfs_intent-2.4.20-hp 2003-09-13 15:19:27.000000000 +0400
-+++ linux-2.4.20-hp4-pnnl13-alexey/fs/exec.c 2003-09-14 17:33:51.000000000 +0400
-@@ -116,8 +116,10 @@ asmlinkage long sys_uselib(const char *
+Index: linux/fs/dcache.c
+===================================================================
+--- linux.orig/fs/dcache.c Thu Nov 28 18:53:15 2002
++++ linux/fs/dcache.c Wed Mar 17 13:11:25 2004
+@@ -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: linux/fs/exec.c
+===================================================================
+--- linux.orig/fs/exec.c Wed Mar 17 13:00:38 2004
++++ linux/fs/exec.c Wed Mar 17 13:11:25 2004
+@@ -115,8 +115,10 @@
struct file * file;
struct nameidata nd;
int error;
if (error)
goto out;
-@@ -129,7 +131,8 @@ asmlinkage long sys_uselib(const char *
+@@ -128,7 +130,8 @@
if (error)
goto exit;
error = PTR_ERR(file);
if (IS_ERR(file))
goto out;
-@@ -372,8 +375,10 @@ struct file *open_exec(const char *name)
+@@ -371,8 +374,10 @@
struct inode *inode;
struct file *file;
int err = 0;
file = ERR_PTR(err);
if (!err) {
inode = nd.dentry->d_inode;
-@@ -385,7 +390,8 @@ struct file *open_exec(const char *name)
+@@ -384,7 +389,8 @@
err = -EACCES;
file = ERR_PTR(err);
if (!err) {
if (!IS_ERR(file)) {
err = deny_write_access(file);
if (err) {
-@@ -397,6 +403,7 @@ out:
+@@ -396,6 +402,7 @@
return file;
}
}
path_release(&nd);
}
goto out;
-@@ -1128,7 +1135,7 @@ int do_coredump(long signr, struct pt_re
+@@ -1120,7 +1127,7 @@
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-hp4-pnnl13/fs/dcache.c~vfs_intent-2.4.20-hp 2002-11-29 02:53:15.000000000 +0300
-+++ linux-2.4.20-hp4-pnnl13-alexey/fs/dcache.c 2003-09-14 17:33:51.000000000 +0400
-@@ -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.
-@@ -830,13 +837,19 @@ 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-hp4-pnnl13/fs/namespace.c~vfs_intent-2.4.20-hp 2002-11-29 02:53:15.000000000 +0300
-+++ linux-2.4.20-hp4-pnnl13-alexey/fs/namespace.c 2003-09-14 17:33:51.000000000 +0400
-@@ -99,6 +99,7 @@ static void detach_mnt(struct vfsmount *
- {
- 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);
-@@ -110,6 +111,7 @@ static void attach_mnt(struct vfsmount *
- {
- 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(&mnt->mnt_child, &nd->mnt->mnt_mounts);
- nd->dentry->d_mounted++;
-@@ -485,14 +487,17 @@ static int do_loopback(struct nameidata
- {
- 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;
-@@ -515,6 +520,7 @@ static int do_loopback(struct nameidata
- }
-
- up_write(¤t->namespace->sem);
-+ intent_release(&it);
- path_release(&old_nd);
- return err;
- }
-@@ -698,6 +704,7 @@ long do_mount(char * dev_name, char * di
- unsigned long flags, void *data_page)
- {
- struct nameidata nd;
-+ struct lookup_intent it = { .it_op = IT_GETATTR };
- int retval = 0;
- int mnt_flags = 0;
-
-@@ -722,10 +729,11 @@ long do_mount(char * dev_name, char * di
- 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,
- data_page);
-@@ -736,6 +744,8 @@ long do_mount(char * dev_name, char * di
- else
- retval = do_add_mount(&nd, type_page, flags, mnt_flags,
- dev_name, data_page);
-+
-+ intent_release(&it);
- path_release(&nd);
- return retval;
- }
-@@ -901,6 +911,8 @@ asmlinkage long sys_pivot_root(const cha
- {
- 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))
-@@ -908,14 +920,14 @@ asmlinkage long sys_pivot_root(const cha
-
- 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;
-
-@@ -970,8 +982,10 @@ out2:
- 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();
---- linux-2.4.20-hp4-pnnl13/fs/namei.c~vfs_intent-2.4.20-hp 2003-09-13 15:19:23.000000000 +0400
-+++ linux-2.4.20-hp4-pnnl13-alexey/fs/namei.c 2003-09-14 17:33:51.000000000 +0400
+Index: linux/fs/namei.c
+===================================================================
+--- linux.orig/fs/namei.c Wed Mar 17 13:00:37 2004
++++ linux/fs/namei.c Wed Mar 17 13:12:31 2004
@@ -94,6 +94,13 @@
* XEmacs seems to be relying on 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 +267,19 @@
* Internal lookup() using the new generic dcache.
* SMP-safe
*/
struct dentry * dentry = d_lookup(parent, name);
+ if (dentry && dentry->d_op && dentry->d_op->d_revalidate_it) {
-+ if (!dentry->d_op->d_revalidate_it(dentry, flags, it) &&
++ if (!dentry->d_op->d_revalidate_it(dentry, flags, NULL, 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 +297,15 @@ static struct dentry * cached_lookup(str
+@@ -281,11 +297,15 @@
* make sure that nobody added the entry to the dcache in the meantime..
* SMP-safe
*/
down(&dir->i_sem);
/*
* First re-do the cached lookup just in case it was created
-@@ -300,6 +320,9 @@ static struct dentry * real_lookup(struc
+@@ -300,6 +320,9 @@
result = ERR_PTR(-ENOMEM);
if (dentry) {
lock_kernel();
+ if (dir->i_op->lookup_it)
-+ result = dir->i_op->lookup_it(dir, dentry, it, flags);
++ result = dir->i_op->lookup_it(dir, dentry, NULL, it, flags);
+ else
result = dir->i_op->lookup(dir, dentry);
unlock_kernel();
if (result)
-@@ -321,6 +344,15 @@ static struct dentry * real_lookup(struc
+@@ -321,6 +344,15 @@
dput(result);
result = ERR_PTR(-ENOENT);
}
+ } else if (result->d_op && result->d_op->d_revalidate_it) {
-+ if (!result->d_op->d_revalidate_it(result, flags, it) &&
++ if (!result->d_op->d_revalidate_it(result, flags, NULL, it) &&
+ !d_invalidate(result)) {
+ dput(result);
+ if (counter > 10)
}
return result;
}
-@@ -332,7 +364,8 @@ static struct dentry * real_lookup(struc
+@@ -332,7 +364,8 @@
* 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 +379,18 @@ static inline int do_follow_link(struct
+@@ -346,10 +379,18 @@
current->link_count++;
current->total_link_count++;
UPDATE_ATIME(dentry->d_inode);
path_release(nd);
return -ELOOP;
}
-@@ -379,15 +420,26 @@ int follow_up(struct vfsmount **mnt, str
+@@ -379,15 +420,26 @@
return __follow_up(mnt, dentry);
}
dput(*dentry);
mntput(mounted->mnt_parent);
*dentry = dget(mounted->mnt_root);
-@@ -399,7 +451,7 @@ static inline int __follow_down(struct v
+@@ -399,7 +451,7 @@
int follow_down(struct vfsmount **mnt, struct dentry **dentry)
{
}
static inline void follow_dotdot(struct nameidata *nd)
-@@ -435,7 +487,7 @@ static inline void follow_dotdot(struct
+@@ -435,7 +487,7 @@
mntput(nd->mnt);
nd->mnt = parent;
}
;
}
-@@ -447,7 +499,8 @@ static inline void follow_dotdot(struct
+@@ -447,7 +499,8 @@
*
* We expect 'base' to be positive and a directory.
*/
{
struct dentry *dentry;
struct inode *inode;
-@@ -520,15 +573,15 @@ int link_path_walk(const char * name, st
+@@ -520,15 +573,15 @@
break;
}
/* This does the actual lookups.. */
;
err = -ENOENT;
-@@ -540,7 +593,7 @@ int link_path_walk(const char * name, st
+@@ -540,7 +593,7 @@
goto out_dput;
if (inode->i_op->follow_link) {
dput(dentry);
if (err)
goto return_err;
-@@ -556,7 +609,7 @@ int link_path_walk(const char * name, st
+@@ -556,7 +609,7 @@
nd->dentry = dentry;
}
err = -ENOTDIR;
break;
continue;
/* here ends the main loop */
-@@ -583,19 +636,19 @@ last_component:
+@@ -583,19 +636,19 @@
if (err < 0)
break;
}
dput(dentry);
if (err)
goto return_err;
-@@ -609,7 +662,8 @@ last_component:
+@@ -609,7 +662,8 @@
goto no_inode;
if (lookup_flags & LOOKUP_DIRECTORY) {
err = -ENOTDIR;
break;
}
goto return_base;
-@@ -633,6 +687,25 @@ return_reval:
+@@ -633,6 +687,27 @@
* Check the cached dentry for staleness.
*/
dentry = nd->dentry;
+ if (dentry && dentry->d_op && dentry->d_op->d_revalidate_it) {
+ err = -ESTALE;
-+ if (!dentry->d_op->d_revalidate_it(dentry, 0, it)) {
++ if (!dentry->d_op->d_revalidate_it(dentry, 0, NULL, 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);
-+ d_invalidate(dentry);
-+ dput(dentry);
-+ if (IS_ERR(new)) {
++ &dentry->d_name, 0, it);
++ if (IS_ERR(new)) {
+ err = PTR_ERR(new);
+ break;
+ }
++ d_invalidate(dentry);
++ 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 +719,28 @@ out_dput:
+@@ -646,15 +721,28 @@
dput(dentry);
break;
}
}
/* SMP-safe */
-@@ -739,6 +825,17 @@ walk_init_root(const char *name, struct
+@@ -739,6 +827,17 @@
}
/* SMP-safe */
int path_lookup(const char *path, unsigned flags, struct nameidata *nd)
{
int error = 0;
-@@ -753,6 +850,7 @@ int path_init(const char *name, unsigned
+@@ -753,6 +852,7 @@
{
nd->last_type = LAST_ROOT; /* if there are only slashes... */
nd->flags = flags;
if (*name=='/')
return walk_init_root(name,nd);
read_lock(¤t->fs->lock);
-@@ -767,7 +865,8 @@ int path_init(const char *name, unsigned
+@@ -767,7 +867,8 @@
* needs parent already locked. Doesn't follow mounts.
* SMP-safe.
*/
{
struct dentry * dentry;
struct inode *inode;
-@@ -790,13 +889,16 @@ struct dentry * lookup_hash(struct qstr
+@@ -790,13 +891,16 @@
goto out;
}
goto out;
lock_kernel();
+ if (inode->i_op->lookup_it)
-+ dentry = inode->i_op->lookup_it(inode, new, it, 0);
++ dentry = inode->i_op->lookup_it(inode, new, NULL, it, 0);
+ else
dentry = inode->i_op->lookup(inode, new);
unlock_kernel();
if (!dentry)
-@@ -808,6 +910,12 @@ out:
+@@ -808,6 +912,12 @@
return dentry;
}
/* SMP-safe */
struct dentry * lookup_one_len(const char * name, struct dentry * base, int len)
{
-@@ -829,7 +937,7 @@ struct dentry * lookup_one_len(const cha
+@@ -829,7 +939,7 @@
}
this.hash = end_name_hash(hash);
access:
return ERR_PTR(-EACCES);
}
-@@ -860,6 +968,23 @@ int __user_walk(const char *name, unsign
+@@ -860,6 +970,23 @@
return err;
}
/*
* It's inline, so penalty for filesystems that don't use sticky bit is
* minimal.
-@@ -955,7 +1080,8 @@ static inline int lookup_flags(unsigned
+@@ -955,7 +1082,8 @@
return retval;
}
{
int error;
-@@ -968,12 +1094,15 @@ int vfs_create(struct inode *dir, struct
+@@ -968,12 +1096,15 @@
goto exit_lock;
error = -EACCES; /* shouldn't it be ENOSYS? */
unlock_kernel();
exit_lock:
up(&dir->i_zombie);
-@@ -982,6 +1111,11 @@ exit_lock:
+@@ -982,6 +1113,11 @@
return error;
}
/*
* open_namei()
*
-@@ -996,7 +1130,8 @@ exit_lock:
+@@ -996,7 +1132,8 @@
* for symlinks (where the permissions are checked later).
* SMP-safe
*/
{
int acc_mode, error = 0;
struct inode *inode;
-@@ -1006,11 +1141,14 @@ int open_namei(const char * pathname, in
+@@ -1006,11 +1143,14 @@
acc_mode = ACC_MODE(flag);
if (error)
return error;
dentry = nd->dentry;
-@@ -1020,6 +1158,10 @@ int open_namei(const char * pathname, in
+@@ -1020,6 +1160,10 @@
/*
* Create - we need to know the parent.
*/
error = path_lookup(pathname, LOOKUP_PARENT, nd);
if (error)
return error;
-@@ -1035,7 +1177,7 @@ int open_namei(const char * pathname, in
+@@ -1035,7 +1179,7 @@
dir = nd->dentry;
down(&dir->d_inode->i_sem);
do_last:
error = PTR_ERR(dentry);
-@@ -1044,11 +1186,12 @@ do_last:
+@@ -1044,11 +1188,12 @@
goto exit;
}
up(&dir->d_inode->i_sem);
dput(nd->dentry);
nd->dentry = dentry;
-@@ -1073,7 +1216,7 @@ do_last:
+@@ -1073,7 +1218,7 @@
error = -ELOOP;
if (flag & O_NOFOLLOW)
goto exit_dput;
}
error = -ENOENT;
if (!dentry->d_inode)
-@@ -1152,7 +1295,7 @@ ok:
+@@ -1152,7 +1297,7 @@
if (!error) {
DQUOT_INIT(inode);
}
put_write_access(inode);
if (error)
-@@ -1164,8 +1307,10 @@ ok:
+@@ -1164,8 +1309,10 @@
return 0;
exit_dput:
path_release(nd);
return error;
-@@ -1184,7 +1329,16 @@ do_link:
+@@ -1184,7 +1331,16 @@
* are done. Procfs-like symlinks just set LAST_BIND.
*/
UPDATE_ATIME(dentry->d_inode);
dput(dentry);
if (error)
return error;
-@@ -1206,13 +1360,20 @@ do_link:
+@@ -1206,13 +1362,20 @@
}
dir = nd->dentry;
down(&dir->d_inode->i_sem);
+
/* SMP-safe */
-static struct dentry *lookup_create(struct nameidata *nd, int is_dir)
-+static struct dentry *lookup_create(struct nameidata *nd, int is_dir,
++struct dentry *lookup_create(struct nameidata *nd, int is_dir,
+ struct lookup_intent *it)
{
struct dentry *dentry;
-@@ -1220,7 +1381,7 @@ static struct dentry *lookup_create(stru
+@@ -1220,7 +1383,7 @@
dentry = ERR_PTR(-EEXIST);
if (nd->last_type != LAST_NORM)
goto fail;
if (IS_ERR(dentry))
goto fail;
if (!is_dir && nd->last.name[nd->last.len] && !dentry->d_inode)
-@@ -1276,7 +1437,16 @@ asmlinkage long sys_mknod(const char * f
+@@ -1276,7 +1439,20 @@
error = path_lookup(tmp, LOOKUP_PARENT, &nd);
if (error)
goto out;
- dentry = lookup_create(&nd, 0);
+
++ 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->mknod_raw(&nd, mode, dev);
error = PTR_ERR(dentry);
if (!IS_POSIXACL(nd.dentry->d_inode))
-@@ -1298,6 +1468,7 @@ asmlinkage long sys_mknod(const char * f
+@@ -1298,6 +1474,7 @@
dput(dentry);
}
up(&nd.dentry->d_inode->i_sem);
path_release(&nd);
out:
putname(tmp);
-@@ -1345,7 +1516,14 @@ asmlinkage long sys_mkdir(const char * p
+@@ -1345,7 +1522,18 @@
error = path_lookup(tmp, LOOKUP_PARENT, &nd);
if (error)
goto out;
- dentry = lookup_create(&nd, 1);
++ 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);
error = PTR_ERR(dentry);
if (!IS_ERR(dentry)) {
if (!IS_POSIXACL(nd.dentry->d_inode))
-@@ -1354,6 +1532,7 @@ asmlinkage long sys_mkdir(const char * p
+@@ -1354,6 +1542,7 @@
dput(dentry);
}
up(&nd.dentry->d_inode->i_sem);
path_release(&nd);
out:
putname(tmp);
-@@ -1454,8 +1633,16 @@ asmlinkage long sys_rmdir(const char * p
+@@ -1454,8 +1643,16 @@
error = -EBUSY;
goto exit1;
}
error = PTR_ERR(dentry);
if (!IS_ERR(dentry)) {
error = vfs_rmdir(nd.dentry->d_inode, dentry);
-@@ -1513,8 +1700,15 @@ asmlinkage long sys_unlink(const char *
+@@ -1513,8 +1710,15 @@
error = -EISDIR;
if (nd.last_type != LAST_NORM)
goto exit1;
error = PTR_ERR(dentry);
if (!IS_ERR(dentry)) {
/* Why not before? Because we want correct error value */
-@@ -1581,15 +1775,23 @@ asmlinkage long sys_symlink(const char *
+@@ -1581,15 +1785,27 @@
error = path_lookup(to, LOOKUP_PARENT, &nd);
if (error)
goto out;
- dentry = lookup_create(&nd, 0);
++ 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->symlink_raw(&nd, from);
putname(to);
}
putname(from);
-@@ -1665,7 +1867,14 @@ asmlinkage long sys_link(const char * ol
+@@ -1665,7 +1881,18 @@
error = -EXDEV;
if (old_nd.mnt != nd.mnt)
goto out_release;
- new_dentry = lookup_create(&nd, 0);
++ 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->link_raw(&old_nd, &nd);
error = PTR_ERR(new_dentry);
if (!IS_ERR(new_dentry)) {
error = vfs_link(old_nd.dentry, nd.dentry->d_inode, new_dentry);
-@@ -1709,7 +1918,7 @@ exit:
+@@ -1709,7 +1936,7 @@
* locking].
*/
int vfs_rename_dir(struct inode *old_dir, struct dentry *old_dentry,
{
int error;
struct inode *target;
-@@ -1788,7 +1997,7 @@ out_unlock:
+@@ -1788,7 +2015,7 @@
}
int vfs_rename_other(struct inode *old_dir, struct dentry *old_dentry,
{
int error;
-@@ -1876,9 +2085,18 @@ static inline int do_rename(const char *
+@@ -1876,9 +2103,18 @@
if (newnd.last_type != LAST_NORM)
goto exit2;
error = PTR_ERR(old_dentry);
if (IS_ERR(old_dentry))
goto exit3;
-@@ -1894,16 +2112,16 @@ static inline int do_rename(const char *
+@@ -1894,16 +2130,16 @@
if (newnd.last.name[newnd.last.len])
goto exit4;
}
dput(new_dentry);
exit4:
dput(old_dentry);
-@@ -1954,20 +2172,28 @@ out:
+@@ -1954,20 +2190,28 @@
}
static inline int
out:
if (current->link_count || res || nd->last_type!=LAST_NORM)
return res;
-@@ -1989,7 +2215,13 @@ fail:
+@@ -1989,7 +2233,13 @@
int vfs_follow_link(struct nameidata *nd, const char *link)
{
}
/* get the link contents into pagecache */
-@@ -2031,7 +2263,7 @@ int page_follow_link(struct dentry *dent
+@@ -2031,7 +2281,7 @@
{
struct page *page = NULL;
char *s = page_getlink(dentry, &page);
if (page) {
kunmap(page);
page_cache_release(page);
---- linux-2.4.20-hp4-pnnl13/fs/open.c~vfs_intent-2.4.20-hp 2002-11-29 02:53:15.000000000 +0300
-+++ linux-2.4.20-hp4-pnnl13-alexey/fs/open.c 2003-09-14 17:33:51.000000000 +0400
+Index: linux/fs/namespace.c
+===================================================================
+--- linux.orig/fs/namespace.c Thu Nov 28 18:53:15 2002
++++ linux/fs/namespace.c Wed Mar 17 13:11:25 2004
+@@ -99,6 +99,7 @@
+ {
+ 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);
+@@ -110,6 +111,7 @@
+ {
+ 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(&mnt->mnt_child, &nd->mnt->mnt_mounts);
+ nd->dentry->d_mounted++;
+@@ -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;
+@@ -485,14 +487,17 @@
+ {
+ 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;
+@@ -515,6 +520,7 @@
+ }
+
+ up_write(¤t->namespace->sem);
++ intent_release(&it);
+ path_release(&old_nd);
+ return err;
+ }
+@@ -698,6 +704,7 @@
+ unsigned long flags, void *data_page)
+ {
+ struct nameidata nd;
++ struct lookup_intent it = { .it_op = IT_GETATTR };
+ int retval = 0;
+ int mnt_flags = 0;
+
+@@ -722,10 +729,11 @@
+ 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,
+ data_page);
+@@ -736,6 +744,8 @@
+ else
+ retval = do_add_mount(&nd, type_page, flags, mnt_flags,
+ dev_name, data_page);
++
++ intent_release(&it);
+ path_release(&nd);
+ return retval;
+ }
+@@ -901,6 +911,8 @@
+ {
+ 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))
+@@ -908,14 +920,14 @@
+
+ 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;
+
+@@ -970,8 +982,10 @@
+ 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: linux/fs/open.c
+===================================================================
+--- linux.orig/fs/open.c Thu Nov 28 18:53:15 2002
++++ linux/fs/open.c Wed Mar 17 13:11:25 2004
@@ -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 +111,13 @@ int do_truncate(struct dentry *dentry, l
+@@ -108,7 +111,13 @@
down(&inode->i_sem);
newattrs.ia_size = length;
newattrs.ia_valid = ATTR_SIZE | ATTR_CTIME;
up(&inode->i_sem);
return error;
}
-@@ -118,12 +127,13 @@ static inline long do_sys_truncate(const
+@@ -118,12 +127,13 @@
struct nameidata nd;
struct inode * inode;
int error;
if (error)
goto out;
inode = nd.dentry->d_inode;
-@@ -163,11 +173,13 @@ static inline long do_sys_truncate(const
+@@ -163,11 +173,13 @@
error = locks_verify_truncate(inode, NULL, length);
if (!error) {
DQUOT_INIT(inode);
path_release(&nd);
out:
return error;
-@@ -215,7 +227,7 @@ static inline long do_sys_ftruncate(unsi
+@@ -215,7 +227,7 @@
error = locks_verify_truncate(inode, file, length);
if (!error)
out_putf:
fput(file);
out:
-@@ -260,11 +272,13 @@ asmlinkage long sys_utime(char * filenam
+@@ -260,11 +272,13 @@
struct inode * inode;
struct iattr newattrs;
error = -EROFS;
if (IS_RDONLY(inode))
goto dput_and_out;
-@@ -279,11 +293,25 @@ asmlinkage long sys_utime(char * filenam
+@@ -279,11 +293,25 @@
goto dput_and_out;
newattrs.ia_valid |= ATTR_ATIME_SET | ATTR_MTIME_SET;
error = notify_change(nd.dentry, &newattrs);
dput_and_out:
path_release(&nd);
-@@ -304,12 +332,14 @@ asmlinkage long sys_utimes(char * filena
+@@ -304,12 +332,14 @@
struct inode * inode;
struct iattr newattrs;
error = -EROFS;
if (IS_RDONLY(inode))
goto dput_and_out;
-@@ -324,7 +354,20 @@ asmlinkage long sys_utimes(char * filena
+@@ -324,7 +354,20 @@
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 +390,7 @@ asmlinkage long sys_access(const char *
+@@ -347,6 +390,7 @@
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 +408,14 @@ asmlinkage long sys_access(const char *
+@@ -364,13 +408,14 @@
else
current->cap_effective = current->cap_permitted;
path_release(&nd);
}
-@@ -385,8 +430,9 @@ asmlinkage long sys_chdir(const char * f
+@@ -385,8 +430,9 @@
{
int error;
struct nameidata nd;
if (error)
goto out;
-@@ -397,6 +443,7 @@ asmlinkage long sys_chdir(const char * f
+@@ -397,6 +443,7 @@
set_fs_pwd(current->fs, nd.mnt, nd.dentry);
dput_and_out:
path_release(&nd);
out:
return error;
-@@ -436,9 +483,10 @@ asmlinkage long sys_chroot(const char *
+@@ -436,9 +483,10 @@
{
int error;
struct nameidata nd;
if (error)
goto out;
-@@ -454,39 +502,56 @@ asmlinkage long sys_chroot(const char *
+@@ -454,39 +502,56 @@
set_fs_altroot();
error = 0;
dput_and_out:
fput(file);
out:
return err;
-@@ -495,30 +560,14 @@ out:
+@@ -495,30 +560,14 @@
asmlinkage long sys_chmod(const char * filename, mode_t mode)
{
struct nameidata nd;
path_release(&nd);
out:
return error;
-@@ -538,6 +587,20 @@ static int chown_common(struct dentry *
+@@ -538,6 +587,20 @@
error = -EROFS;
if (IS_RDONLY(inode))
goto out;
error = -EPERM;
if (IS_IMMUTABLE(inode) || IS_APPEND(inode))
goto out;
-@@ -642,6 +705,7 @@ struct file *filp_open(const char * file
+@@ -642,6 +705,7 @@
{
int namei_flags, error;
struct nameidata nd;
namei_flags = flags;
if ((namei_flags+1) & O_ACCMODE)
-@@ -649,14 +713,15 @@ struct file *filp_open(const char * file
+@@ -649,14 +713,15 @@
if (namei_flags & O_TRUNC)
namei_flags |= 2;
{
struct file * f;
struct inode *inode;
-@@ -693,12 +758,15 @@ struct file *dentry_open(struct dentry *
+@@ -693,12 +758,15 @@
}
if (f->f_op && f->f_op->open) {
return f;
cleanup_all:
-@@ -713,11 +781,17 @@ cleanup_all:
+@@ -713,11 +781,17 @@
cleanup_file:
put_filp(f);
cleanup_dentry:
/*
* Find an empty file descriptor entry, and mark it busy.
*/
---- linux-2.4.20-hp4-pnnl13/fs/stat.c~vfs_intent-2.4.20-hp 2001-09-14 03:04:43.000000000 +0400
-+++ linux-2.4.20-hp4-pnnl13-alexey/fs/stat.c 2003-09-14 17:34:07.000000000 +0400
-@@ -17,10 +17,14 @@
+Index: linux/fs/proc/base.c
+===================================================================
+--- linux.orig/fs/proc/base.c Wed Mar 17 13:00:35 2004
++++ linux/fs/proc/base.c Wed Mar 17 13:11:25 2004
+@@ -481,6 +481,9 @@
+
+ error = inode->u.proc_i.op.proc_get_link(inode, &nd->dentry, &nd->mnt);
+ nd->last_type = LAST_BIND;
++
++ if (nd->intent != NULL)
++ nd->intent->d.lustre.it_int_flags |= IT_FL_FOLLOWED;
+ out:
+ return error;
+ }
+Index: linux/fs/stat.c
+===================================================================
+--- linux.orig/fs/stat.c Thu Sep 13 19:04:43 2001
++++ linux/fs/stat.c Wed Mar 17 13:12:31 2004
+@@ -17,10 +17,12 @@
* Revalidate the inode. This is required for proper NFS attribute caching.
*/
static __inline__ int
{
struct inode * inode = dentry->d_inode;
- if (inode->i_op && inode->i_op->revalidate)
-+ if (!inode)
-+ return -ENOENT;
+ 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;
}
-@@ -135,13 +139,15 @@ static int cp_new_stat(struct inode * in
+@@ -135,13 +137,15 @@
asmlinkage long sys_stat(char * filename, struct __old_kernel_stat * statbuf)
{
struct nameidata nd;
path_release(&nd);
}
return error;
-@@ -151,13 +157,15 @@ asmlinkage long sys_stat(char * filename
+@@ -151,13 +155,15 @@
asmlinkage long sys_newstat(char * filename, struct stat * statbuf)
{
struct nameidata nd;
path_release(&nd);
}
return error;
-@@ -172,13 +180,15 @@ asmlinkage long sys_newstat(char * filen
+@@ -172,13 +178,15 @@
asmlinkage long sys_lstat(char * filename, struct __old_kernel_stat * statbuf)
{
struct nameidata nd;
path_release(&nd);
}
return error;
-@@ -189,13 +199,15 @@ asmlinkage long sys_lstat(char * filenam
+@@ -189,13 +197,15 @@
asmlinkage long sys_newlstat(char * filename, struct stat * statbuf)
{
struct nameidata nd;
path_release(&nd);
}
return error;
-@@ -216,7 +228,7 @@ asmlinkage long sys_fstat(unsigned int f
+@@ -216,7 +226,7 @@
if (f) {
struct dentry * dentry = f->f_dentry;
if (!err)
err = cp_old_stat(dentry->d_inode, statbuf);
fput(f);
-@@ -235,7 +247,7 @@ asmlinkage long sys_newfstat(unsigned in
+@@ -235,7 +245,7 @@
if (f) {
struct dentry * dentry = f->f_dentry;
if (!err)
err = cp_new_stat(dentry->d_inode, statbuf);
fput(f);
-@@ -257,7 +269,7 @@ asmlinkage long sys_readlink(const char
+@@ -257,7 +267,7 @@
error = -EINVAL;
if (inode->i_op && inode->i_op->readlink &&
UPDATE_ATIME(inode);
error = inode->i_op->readlink(nd.dentry, buf, bufsiz);
}
-@@ -333,12 +345,14 @@ asmlinkage long sys_stat64(char * filena
+@@ -333,12 +343,14 @@
{
struct nameidata nd;
int error;
path_release(&nd);
}
return error;
-@@ -348,12 +362,14 @@ asmlinkage long sys_lstat64(char * filen
+@@ -348,12 +360,14 @@
{
struct nameidata nd;
int error;
path_release(&nd);
}
return error;
-@@ -368,7 +384,7 @@ asmlinkage long sys_fstat64(unsigned lon
+@@ -368,7 +382,7 @@
if (f) {
struct dentry * dentry = f->f_dentry;
if (!err)
err = cp_new_stat64(dentry->d_inode, statbuf);
fput(f);
---- linux-2.4.20-hp4-pnnl13/fs/proc/base.c~vfs_intent-2.4.20-hp 2003-09-13 15:19:19.000000000 +0400
-+++ linux-2.4.20-hp4-pnnl13-alexey/fs/proc/base.c 2003-09-14 17:33:51.000000000 +0400
-@@ -481,6 +481,9 @@ 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->intent != NULL)
-+ nd->intent->d.lustre.it_int_flags |= IT_FL_FOLLOWED;
- out:
- return error;
- }
---- linux-2.4.20-hp4-pnnl13/include/linux/dcache.h~vfs_intent-2.4.20-hp 2002-11-29 02:53:15.000000000 +0300
-+++ linux-2.4.20-hp4-pnnl13-alexey/include/linux/dcache.h 2003-09-14 17:33:51.000000000 +0400
-@@ -6,6 +6,51 @@
+Index: linux/include/linux/dcache.h
+===================================================================
+--- linux.orig/include/linux/dcache.h Thu Nov 28 18:53:15 2002
++++ linux/include/linux/dcache.h Wed Mar 17 13:11:25 2004
+@@ -6,6 +6,52 @@
#include <asm/atomic.h>
#include <linux/mount.h>
#include <linux/kernel.h>
+#define IT_GETXATTR 0x0040
+#define IT_EXEC 0x0080
+#define IT_PIN 0x0100
++#define IT_CHDIR 0x0200
+
+#define IT_FL_LOCKED 0x0001
+#define IT_FL_FOLLOWED 0x0002 /* set by vfs_follow_link */
/*
* linux/include/linux/dcache.h
-@@ -91,8 +136,22 @@ struct dentry_operations {
+@@ -84,6 +130,8 @@
+ unsigned char d_iname[DNAME_INLINE_LEN]; /* small names */
+ };
+
++struct nameidata;
++
+ struct dentry_operations {
+ int (*d_revalidate)(struct dentry *, int);
+ int (*d_hash) (struct dentry *, struct qstr *);
+@@ -91,8 +136,22 @@
int (*d_delete)(struct dentry *);
void (*d_release)(struct dentry *);
void (*d_iput)(struct dentry *, struct inode *);
-+ int (*d_revalidate_it)(struct dentry *, int, 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);
};
/* 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 +183,7 @@ d_iput: no no yes
+@@ -124,6 +183,7 @@
* 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-hp4-pnnl13/include/linux/fs.h~vfs_intent-2.4.20-hp 2003-09-14 17:33:50.000000000 +0400
-+++ linux-2.4.20-hp4-pnnl13-alexey/include/linux/fs.h 2003-09-14 17:33:51.000000000 +0400
-@@ -73,6 +73,7 @@ extern int leases_enable, dir_notify_ena
+Index: linux/include/linux/fs.h
+===================================================================
+--- linux.orig/include/linux/fs.h Wed Mar 17 13:11:23 2004
++++ linux/include/linux/fs.h Wed Mar 17 13:11:31 2004
+@@ -73,6 +73,7 @@
#define FMODE_READ 1
#define FMODE_WRITE 2
#define READ 0
#define WRITE 1
-@@ -340,6 +341,9 @@ extern void set_bh_page(struct buffer_he
+@@ -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 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
++#define ATTR_CTIME_SET 0x2000
/*
* This is the Inode Attributes structure, used for notify_change(). It
-@@ -474,6 +478,7 @@ struct inode {
+@@ -474,6 +478,7 @@
struct pipe_inode_info *i_pipe;
struct block_device *i_bdev;
struct char_device *i_cdev;
unsigned long i_dnotify_mask; /* Directory notify events */
struct dnotify_struct *i_dnotify; /* for directory notifications */
-@@ -576,6 +581,7 @@ struct file {
+@@ -576,6 +581,7 @@
/* needed for tty driver, and maybe others */
void *private_data;
/* preallocated helper kiobuf to speedup O_DIRECT */
struct kiobuf *f_iobuf;
-@@ -697,6 +703,7 @@ struct nameidata {
+@@ -697,6 +703,7 @@
struct qstr last;
unsigned int flags;
int last_type;
};
/*
-@@ -817,7 +824,8 @@ extern int vfs_symlink(struct inode *, s
+@@ -817,7 +824,8 @@
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 *);
/*
* File types
-@@ -877,21 +885,32 @@ struct file_operations {
+@@ -877,21 +885,32 @@
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 * (*lookup_it) (struct inode *,struct dentry *, struct lookup_intent *, int flags);
++ struct dentry * (*lookup_it) (struct inode *,struct dentry *, struct nameidata *, struct lookup_intent *, int flags);
int (*link) (struct dentry *,struct inode *,struct dentry *);
+ int (*link_raw) (struct nameidata *,struct nameidata *);
int (*unlink) (struct inode *,struct dentry *);
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);
-@@ -1088,10 +1107,14 @@ 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
+@@ -1088,10 +1107,16 @@
asmlinkage long sys_open(const char *, int, int);
asmlinkage long sys_close(unsigned int); /* yes, it's really unsigned */
-extern int do_truncate(struct dentry *, loff_t start);
+extern int do_truncate(struct dentry *, loff_t start, int called_from_open);
++struct dentry *lookup_create(struct nameidata *nd, int is_dir,
++ struct lookup_intent *it);
extern struct file *filp_open(const char *, int, int);
extern struct file * dentry_open(struct dentry *, struct vfsmount *, int);
extern int filp_close(struct file *, fl_owner_t id);
extern char * getname(const char *);
-@@ -1353,6 +1376,7 @@ typedef int (*read_actor_t)(read_descrip
+@@ -1354,6 +1377,7 @@
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 *));
-@@ -1364,6 +1388,8 @@ extern struct dentry * lookup_one_len(co
+@@ -1365,6 +1389,8 @@
extern struct dentry * lookup_hash(struct qstr *, struct dentry *);
#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_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 *);
-@@ -1499,6 +1525,8 @@ extern struct file_operations generic_ro
+ extern void _inode_init_once(struct inode *);
+@@ -1503,6 +1529,8 @@
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-hp4-pnnl13/include/linux/fs_struct.h~vfs_intent-2.4.20-hp 2001-07-14 02:10:44.000000000 +0400
-+++ linux-2.4.20-hp4-pnnl13-alexey/include/linux/fs_struct.h 2003-09-14 17:33:51.000000000 +0400
-@@ -34,10 +34,12 @@ static inline void set_fs_root(struct fs
+Index: linux/include/linux/fs_struct.h
+===================================================================
+--- linux.orig/include/linux/fs_struct.h Fri Jul 13 18:10:44 2001
++++ linux/include/linux/fs_struct.h Wed Mar 17 13:11:25 2004
+@@ -34,10 +34,12 @@
write_lock(&fs->lock);
old_root = fs->root;
old_rootmnt = fs->rootmnt;
dput(old_root);
mntput(old_rootmnt);
}
-@@ -57,10 +59,12 @@ static inline void set_fs_pwd(struct fs_
+@@ -57,10 +59,12 @@
write_lock(&fs->lock);
old_pwd = fs->pwd;
old_pwdmnt = fs->pwdmnt;
dput(old_pwd);
mntput(old_pwdmnt);
}
---- linux-2.4.20-hp4-pnnl13/kernel/ksyms.c~vfs_intent-2.4.20-hp 2003-09-14 17:33:50.000000000 +0400
-+++ linux-2.4.20-hp4-pnnl13-alexey/kernel/ksyms.c 2003-09-14 17:33:51.000000000 +0400
-@@ -296,6 +296,7 @@ EXPORT_SYMBOL(read_cache_page);
- EXPORT_SYMBOL(set_page_dirty);
- EXPORT_SYMBOL(vfs_readlink);
- EXPORT_SYMBOL(vfs_follow_link);
-+EXPORT_SYMBOL(vfs_follow_link_it);
- EXPORT_SYMBOL(page_readlink);
- EXPORT_SYMBOL(page_follow_link);
- EXPORT_SYMBOL(page_symlink_inode_operations);
---- linux-2.4.20-hp4-pnnl13/kernel/fork.c~vfs_intent-2.4.20-hp 2003-09-13 15:19:27.000000000 +0400
-+++ linux-2.4.20-hp4-pnnl13-alexey/kernel/fork.c 2003-09-14 17:33:51.000000000 +0400
-@@ -388,10 +388,13 @@ static inline struct fs_struct *__copy_f
- 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 {
---- linux-2.4.20-hp4-pnnl13/kernel/exit.c~vfs_intent-2.4.20-hp 2003-09-13 15:19:27.000000000 +0400
-+++ linux-2.4.20-hp4-pnnl13-alexey/kernel/exit.c 2003-09-14 17:33:51.000000000 +0400
-@@ -239,11 +239,14 @@ static inline void __put_fs_struct(struc
+Index: linux/kernel/exit.c
+===================================================================
+--- linux.orig/kernel/exit.c Wed Mar 17 13:00:38 2004
++++ linux/kernel/exit.c Wed Mar 17 13:11:25 2004
+@@ -239,11 +239,14 @@
{
/* No need to hold fs->lock if we are killing it */
if (atomic_dec_and_test(&fs->count)) {
dput(fs->altroot);
mntput(fs->altrootmnt);
}
-
-_
+Index: linux/kernel/fork.c
+===================================================================
+--- linux.orig/kernel/fork.c Wed Mar 17 13:00:38 2004
++++ linux/kernel/fork.c Wed Mar 17 13:11:25 2004
+@@ -387,10 +387,13 @@
+ 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: linux/kernel/ksyms.c
+===================================================================
+--- linux.orig/kernel/ksyms.c Wed Mar 17 13:11:23 2004
++++ linux/kernel/ksyms.c Wed Mar 17 13:11:25 2004
+@@ -315,6 +315,9 @@
+ EXPORT_SYMBOL(set_page_dirty);
+ EXPORT_SYMBOL(vfs_readlink);
+ EXPORT_SYMBOL(vfs_follow_link);
++EXPORT_SYMBOL(vfs_follow_link_it);
++EXPORT_SYMBOL(do_umount);
++EXPORT_SYMBOL(lookup_create);
+ EXPORT_SYMBOL(page_readlink);
+ EXPORT_SYMBOL(page_follow_link);
+ EXPORT_SYMBOL(page_symlink_inode_operations);
+===== include/linux/mount.h 1.7 vs edited =====
+--- linux.orig/include/linux/mount.h Tue Feb 5 09:49:35 2002
++++ linux/include/linux/mount.h Tue May 4 19:23:48 2004
+@@ -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 +39,7 @@
+ }
+
+ extern void __mntput(struct vfsmount *mnt);
++extern int do_umount(struct vfsmount *mnt, int flags);
+
+ static inline void mntput(struct vfsmount *mnt)
+ {
git://git.whamcloud.com / fs / lustre-release.git / blobdiff