kernel/ksyms.c | 1
13 files changed, 591 insertions(+), 133 deletions(-)
-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
goto close_fail;
retval = binfmt->core_dump(signr, regs, file);
+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/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++;
+@@ -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/namei.c
===================================================================
--- linux.orig/fs/namei.c Wed Mar 17 13:00:37 2004
+ if (err)
+ break;
+ new = real_lookup(dentry->d_parent,
-+ &dentry->d_name, 0, it);
++ &dentry->d_name, 0, NULL);
++ d_invalidate(dentry);
++ dput(dentry);
+ if (IS_ERR(new)) {
+ err = PTR_ERR(new);
+ break;
+ }
-+ d_invalidate(dentry);
-+ dput(dentry);
+ nd->dentry = new;
+ }
+ if (!nd->dentry->d_inode)
if (page) {
kunmap(page);
page_cache_release(page);
-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++;
-@@ -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
/*
* Find an empty file descriptor entry, and mark it busy.
*/
-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
if (!err)
err = cp_new_stat64(dentry->d_inode, statbuf);
fput(f);
+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/include/linux/dcache.h
===================================================================
--- linux.orig/include/linux/dcache.h Thu Nov 28 18:53:15 2002
#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
dput(old_pwd);
mntput(old_pwdmnt);
}
-Index: linux/kernel/exit.c
+Index: linux/kernel/ksyms.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)) {
-+ 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);
- }
+--- 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 +315,7 @@
+ 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);
Index: linux/kernel/fork.c
===================================================================
--- linux.orig/kernel/fork.c Wed Mar 17 13:00:38 2004
fs->altrootmnt = mntget(old->altrootmnt);
fs->altroot = dget(old->altroot);
} else {
-Index: linux/kernel/ksyms.c
+Index: linux/kernel/exit.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 +315,7 @@
- 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.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)) {
++ 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);
+ }
git://git.whamcloud.com / fs / lustre-release.git / blobdiff