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-rw-r--r--openwrt/target/linux/package/mini_fo/patches/102-mutex_change.patch602
1 files changed, 0 insertions, 602 deletions
diff --git a/openwrt/target/linux/package/mini_fo/patches/102-mutex_change.patch b/openwrt/target/linux/package/mini_fo/patches/102-mutex_change.patch
deleted file mode 100644
index 4dec47bf5e..0000000000
--- a/openwrt/target/linux/package/mini_fo/patches/102-mutex_change.patch
+++ /dev/null
@@ -1,602 +0,0 @@
-From: <mk@mary.denx.de>
-Date: Tue, 24 Jan 2006 14:09:21 +0000 (+0100)
-Subject: Support for new mutex infrastructure
-X-Git-Url: http://www.denx.de/cgi-bin/gitweb.cgi?p=mini_fo.git;a=commitdiff;h=1dcc028729060ea83ea662155634b33ae8e2c493
-
- Support for new mutex infrastructure
- (7892f2f48d165a34b0b8130c8a195dfd807b8cb6)
----
-
---- a/ChangeLog
-+++ b/ChangeLog
-@@ -1,3 +1,13 @@
-+2006-01-24 Markus Klotzbuecher <mk@mary.denx.de>
-+
-+ * Add tons of ugly ifdefs to Ed L. Cashin's mutex patch to
-+ retain backwards compatibility.
-+
-+2006-01-24 Ed L. Cashin <ecashin@coraid.com>
-+
-+ * Support for the new mutex infrastructure
-+ (7892f2f48d165a34b0b8130c8a195dfd807b8cb6)
-+
- 2005-10-15 Markus Klotzbuecher <mk@localhost.localdomain>
-
- * Bugfix for a serious memory leak in mini_fo_follow_link.
---- a/aux.c
-+++ b/aux.c
-@@ -435,8 +435,11 @@ int build_sto_structure(dentry_t *dir, d
-
- /* was: hidden_sto_dir_dentry = lock_parent(hidden_sto_dentry); */
- hidden_sto_dir_dentry = dget(hidden_sto_dentry->d_parent);
-+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,16)
-+ mutex_lock(&hidden_sto_dir_dentry->d_inode->i_mutex);
-+#else
- down(&hidden_sto_dir_dentry->d_inode->i_sem);
--
-+#endif
- /* lets be safe */
- if(dtohd2(dir) != hidden_sto_dir_dentry) {
- printk(KERN_CRIT "mini_fo: build_sto_structure: invalid parameter or meta data corruption [2].\n");
-@@ -457,7 +460,11 @@ int build_sto_structure(dentry_t *dir, d
- if(err) {
- printk(KERN_CRIT "mini_fo: build_sto_structure: failed to create storage dir [1].\n");
- /* was: unlock_dir(dir); */
-+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,16)
-+ mutex_unlock(&dir->d_inode->i_mutex);
-+#else
- up(&dir->d_inode->i_sem);
-+#endif
- dput(dir);
- return err;
- }
-@@ -466,7 +473,11 @@ int build_sto_structure(dentry_t *dir, d
- if(!dtohd2(dentry)->d_inode) {
- printk(KERN_CRIT "mini_fo: build_sto_structure: failed to create storage dir [2].\n");
- /* was: unlock_dir(dir); */
-+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,16)
-+ mutex_unlock(&dir->d_inode->i_mutex);
-+#else
- up(&dir->d_inode->i_sem);
-+#endif
- dput(dir);
- return 1;
- }
-@@ -485,7 +496,11 @@ int build_sto_structure(dentry_t *dir, d
- hidden_sto_dir_dentry->d_inode);
- dir->d_inode->i_nlink++;
- /* was: unlock_dir(hidden_sto_dir_dentry); */
-+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,16)
-+ mutex_unlock(&hidden_sto_dir_dentry->d_inode->i_mutex);
-+#else
- up(&hidden_sto_dir_dentry->d_inode->i_sem);
-+#endif
- dput(hidden_sto_dir_dentry);
- return 0;
- }
---- a/file.c
-+++ b/file.c
-@@ -613,18 +613,34 @@ mini_fo_fsync(file_t *file, dentry_t *de
- if ((hidden_file = ftohf(file)) != NULL) {
- hidden_dentry = dtohd(dentry);
- if (hidden_file->f_op && hidden_file->f_op->fsync) {
-+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,16)
-+ mutex_lock(&hidden_dentry->d_inode->i_mutex);
-+#else
- down(&hidden_dentry->d_inode->i_sem);
-+#endif
- err1 = hidden_file->f_op->fsync(hidden_file, hidden_dentry, datasync);
-+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,16)
-+ mutex_unlock(&hidden_dentry->d_inode->i_mutex);
-+#else
- up(&hidden_dentry->d_inode->i_sem);
-+#endif
- }
- }
-
- if ((hidden_file = ftohf2(file)) != NULL) {
- hidden_dentry = dtohd2(dentry);
- if (hidden_file->f_op && hidden_file->f_op->fsync) {
-+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,16)
-+ mutex_lock(&hidden_dentry->d_inode->i_mutex);
-+#else
- down(&hidden_dentry->d_inode->i_sem);
-+#endif
- err2 = hidden_file->f_op->fsync(hidden_file, hidden_dentry, datasync);
-+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,16)
-+ mutex_unlock(&hidden_dentry->d_inode->i_mutex);
-+#else
- up(&hidden_dentry->d_inode->i_sem);
-+#endif
- }
- }
- else
---- a/inode.c
-+++ b/inode.c
-@@ -355,7 +355,11 @@ mini_fo_link(dentry_t *old_dentry, inode
-
- /* was: hidden_dir_dentry = lock_parent(hidden_new_dentry); */
- hidden_dir_dentry = dget(hidden_new_dentry->d_parent);
-+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,16)
-+ mutex_lock(&hidden_dir_dentry->d_inode->i_mutex);
-+#else
- down(&hidden_dir_dentry->d_inode->i_sem);
-+#endif
-
- err = vfs_link(hidden_old_dentry,
- hidden_dir_dentry->d_inode,
-@@ -374,7 +378,11 @@ mini_fo_link(dentry_t *old_dentry, inode
-
- out_lock:
- /* was: unlock_dir(hidden_dir_dentry); */
-+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,16)
-+ mutex_unlock(&hidden_dir_dentry->d_inode->i_mutex);
-+#else
- up(&hidden_dir_dentry->d_inode->i_sem);
-+#endif
- dput(hidden_dir_dentry);
-
- dput(hidden_new_dentry);
-@@ -452,7 +460,11 @@ mini_fo_symlink(inode_t *dir, dentry_t *
- dget(hidden_sto_dentry);
- /* was: hidden_sto_dir_dentry = lock_parent(hidden_sto_dentry); */
- hidden_sto_dir_dentry = dget(hidden_sto_dentry->d_parent);
-+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,16)
-+ mutex_lock(&hidden_sto_dir_dentry->d_inode->i_mutex);
-+#else
- down(&hidden_sto_dir_dentry->d_inode->i_sem);
-+#endif
-
- #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
- mode = S_IALLUGO;
-@@ -481,7 +493,11 @@ mini_fo_symlink(inode_t *dir, dentry_t *
-
- out_lock:
- /* was: unlock_dir(hidden_sto_dir_dentry); */
-+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,16)
-+ mutex_unlock(&hidden_sto_dir_dentry->d_inode->i_mutex);
-+#else
- up(&hidden_sto_dir_dentry->d_inode->i_sem);
-+#endif
- dput(hidden_sto_dir_dentry);
-
- dput(hidden_sto_dentry);
-@@ -524,7 +540,11 @@ mini_fo_rmdir(inode_t *dir, dentry_t *de
-
- /* was:hidden_sto_dir_dentry = lock_parent(hidden_sto_dentry); */
- hidden_sto_dir_dentry = dget(hidden_sto_dentry->d_parent);
-+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,16)
-+ mutex_lock(&hidden_sto_dir_dentry->d_inode->i_mutex);
-+#else
- down(&hidden_sto_dir_dentry->d_inode->i_sem);
-+#endif
-
- /* avoid destroying the hidden inode if the file is in use */
- dget(hidden_sto_dentry);
-@@ -572,7 +592,11 @@ mini_fo_rmdir(inode_t *dir, dentry_t *de
- dentry->d_name.len);
- }
- /* was: unlock_dir(hidden_sto_dir_dentry); */
-+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,16)
-+ mutex_unlock(&hidden_sto_dir_dentry->d_inode->i_mutex);
-+#else
- up(&hidden_sto_dir_dentry->d_inode->i_sem);
-+#endif
- dput(hidden_sto_dir_dentry);
- goto out;
- }
-@@ -602,7 +626,12 @@ mini_fo_rmdir(inode_t *dir, dentry_t *de
-
- /* was: hidden_sto_dir_dentry = lock_parent(hidden_sto_dentry);*/
- hidden_sto_dir_dentry = dget(hidden_sto_dentry->d_parent);
-+
-+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,16)
-+ mutex_lock(&hidden_sto_dir_dentry->d_inode->i_mutex);
-+#else
- down(&hidden_sto_dir_dentry->d_inode->i_sem);
-+#endif
-
- /* avoid destroying the hidden inode if the file is in use */
- dget(hidden_sto_dentry);
-@@ -630,7 +659,11 @@ mini_fo_rmdir(inode_t *dir, dentry_t *de
- dtopd(dentry)->state = NON_EXISTANT;
-
- /* was: unlock_dir(hidden_sto_dir_dentry); */
-+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,16)
-+ mutex_unlock(&hidden_sto_dir_dentry->d_inode->i_mutex);
-+#else
- up(&hidden_sto_dir_dentry->d_inode->i_sem);
-+#endif
- dput(hidden_sto_dir_dentry);
-
- goto out;
-@@ -641,7 +674,12 @@ mini_fo_rmdir(inode_t *dir, dentry_t *de
-
- /* was: hidden_sto_dir_dentry = lock_parent(hidden_sto_dentry);*/
- hidden_sto_dir_dentry = dget(hidden_sto_dentry->d_parent);
-+
-+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,16)
-+ mutex_lock(&hidden_sto_dir_dentry->d_inode->i_mutex);
-+#else
- down(&hidden_sto_dir_dentry->d_inode->i_sem);
-+#endif
-
- /* avoid destroying the hidden inode if the file is in use */
- dget(hidden_sto_dentry);
-@@ -668,7 +706,12 @@ mini_fo_rmdir(inode_t *dir, dentry_t *de
- dentry->d_inode->i_nlink = itohi2(dentry->d_inode)->i_nlink;
- dtopd(dentry)->state = DELETED;
- /* was: unlock_dir(hidden_sto_dir_dentry); */
-+
-+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,16)
-+ mutex_unlock(&hidden_sto_dir_dentry->d_inode->i_mutex);
-+#else
- up(&hidden_sto_dir_dentry->d_inode->i_sem);
-+#endif
- dput(hidden_sto_dir_dentry);
- goto out;
- }
-@@ -1294,11 +1337,19 @@ mini_fo_getxattr(struct dentry *dentry,
- encoded_name = (char *)name;
- encoded_value = (char *)value;
-
-+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,16)
-+ mutex_lock(&hidden_dentry->d_inode->i_mutex);
-+#else
- down(&hidden_dentry->d_inode->i_sem);
-+#endif
- /* lock_kernel() already done by caller. */
- err = hidden_dentry->d_inode->i_op->getxattr(hidden_dentry, encoded_name, encoded_value, size);
- /* unlock_kernel() will be done by caller. */
-+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,16)
-+ mutex_lock(&hidden_dentry->d_inode->i_mutex);
-+#else
- up(&hidden_dentry->d_inode->i_sem);
-+#endif
- }
- return err;
- }
-@@ -1340,11 +1391,19 @@ mini_fo_setxattr(struct dentry *dentry,
- encoded_name = (char *)name;
- encoded_value = (char *)value;
-
-+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,16)
-+ mutex_lock(&hidden_dentry->d_inode->i_mutex);
-+#else
- down(&hidden_dentry->d_inode->i_sem);
-+#endif
- /* lock_kernel() already done by caller. */
- err = hidden_dentry->d_inode->i_op->setxattr(hidden_dentry, encoded_name, encoded_value, size, flags);
- /* unlock_kernel() will be done by caller. */
-+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,16)
-+ mutex_unlock(&hidden_dentry->d_inode->i_mutex);
-+#else
- up(&hidden_dentry->d_inode->i_sem);
-+#endif
- }
- return err;
- }
-@@ -1372,11 +1431,19 @@ mini_fo_removexattr(struct dentry *dentr
- if (hidden_dentry->d_inode->i_op->removexattr) {
- encoded_name = (char *)name;
-
-+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,16)
-+ mutex_lock(&hidden_dentry->d_inode->i_mutex);
-+#else
- down(&hidden_dentry->d_inode->i_sem);
-+#endif
- /* lock_kernel() already done by caller. */
- err = hidden_dentry->d_inode->i_op->removexattr(hidden_dentry, encoded_name);
- /* unlock_kernel() will be done by caller. */
-+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,16)
-+ mutex_unlock(&hidden_dentry->d_inode->i_mutex);
-+#else
- up(&hidden_dentry->d_inode->i_sem);
-+#endif
- }
- return err;
- }
-@@ -1403,11 +1470,20 @@ mini_fo_listxattr(struct dentry *dentry,
-
- if (hidden_dentry->d_inode->i_op->listxattr) {
- encoded_list = list;
-+
-+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,16)
-+ mutex_lock(&hidden_dentry->d_inode->i_mutex);
-+#else
- down(&hidden_dentry->d_inode->i_sem);
-+#endif
- /* lock_kernel() already done by caller. */
- err = hidden_dentry->d_inode->i_op->listxattr(hidden_dentry, encoded_list, size);
- /* unlock_kernel() will be done by caller. */
-+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,16)
-+ mutex_unlock(&hidden_dentry->d_inode->i_mutex);
-+#else
- up(&hidden_dentry->d_inode->i_sem);
-+#endif
- }
- return err;
- }
---- a/meta.c
-+++ b/meta.c
-@@ -650,9 +650,20 @@ int meta_sync_d_list(dentry_t *dentry, i
- struct iattr newattrs;
- newattrs.ia_size = 0;
- newattrs.ia_valid = ATTR_SIZE | ATTR_CTIME;
-+
-+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,16)
-+ mutex_lock(&meta_dentry->d_inode->i_mutex);
-+#else
- down(&meta_dentry->d_inode->i_sem);
-+#endif
- err = notify_change(meta_dentry, &newattrs);
-+
-+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,16)
-+ mutex_unlock(&meta_dentry->d_inode->i_mutex);
-+#else
- up(&meta_dentry->d_inode->i_sem);
-+#endif
-+
- if(err || meta_dentry->d_inode->i_size != 0) {
- printk(KERN_CRIT "mini_fo: meta_sync_d_list: \
- ERROR truncating meta file.\n");
-@@ -780,9 +791,19 @@ int meta_sync_r_list(dentry_t *dentry, i
- struct iattr newattrs;
- newattrs.ia_size = 0;
- newattrs.ia_valid = ATTR_SIZE | ATTR_CTIME;
-+
-+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,16)
-+ mutex_lock(&meta_dentry->d_inode->i_mutex);
-+#else
- down(&meta_dentry->d_inode->i_sem);
-+#endif
- err = notify_change(meta_dentry, &newattrs);
-+
-+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,16)
-+ mutex_unlock(&meta_dentry->d_inode->i_mutex);
-+#else
- up(&meta_dentry->d_inode->i_sem);
-+#endif
- if(err || meta_dentry->d_inode->i_size != 0) {
- printk(KERN_CRIT "mini_fo: meta_sync_r_list: \
- ERROR truncating meta file.\n");
---- a/mini_fo.h
-+++ b/mini_fo.h
-@@ -433,6 +433,33 @@ fist_copy_attr_all(inode_t *dest, const
-
- #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
- /* copied from linux/fs.h */
-+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,16)
-+static inline void double_lock(struct dentry *d1, struct dentry *d2)
-+{
-+ struct mutex *m1 = &d1->d_inode->i_mutex;
-+ struct mutex *m2 = &d2->d_inode->i_mutex;
-+ if (m1 != m2) {
-+ if ((unsigned long) m1 < (unsigned long) m2) {
-+ struct mutex *tmp = m2;
-+ m2 = m1; m1 = tmp;
-+ }
-+ mutex_lock(m1);
-+ }
-+ mutex_lock(m2);
-+}
-+
-+static inline void double_unlock(struct dentry *d1, struct dentry *d2)
-+{
-+ struct mutex *m1 = &d1->d_inode->i_mutex;
-+ struct mutex *m2 = &d2->d_inode->i_mutex;
-+ mutex_unlock(m1);
-+ if (m1 != m2)
-+ mutex_unlock(m2);
-+ dput(d1);
-+ dput(d2);
-+}
-+
-+#else
- static inline void double_down(struct semaphore *s1, struct semaphore *s2)
- {
- if (s1 != s2) {
-@@ -463,8 +490,8 @@ static inline void double_unlock(struct
- dput(d1);
- dput(d2);
- }
--
--#endif
-+#endif /* if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,16) */
-+#endif /* if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0) */
- #endif /* __KERNEL__ */
-
- /*
---- a/mmap.c
-+++ b/mmap.c
-@@ -478,7 +478,11 @@ mini_fo_commit_write(file_t *file, page_
- if (ftopd(file) != NULL)
- hidden_file = ftohf(file);
-
-+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,16)
-+ mutex_lock(&hidden_inode->i_mutex);
-+#else
- down(&hidden_inode->i_sem);
-+#endif
- /* find lower page (returns a locked page) */
- hidden_page = grab_cache_page(hidden_inode->i_mapping, page->index);
- if (!hidden_page)
-@@ -556,7 +560,12 @@ mini_fo_commit_write(file_t *file, page_
- ClearPageUptodate(page);
- else
- SetPageUptodate(page);
-+
-+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,16)
-+ mutex_unlock(&hidden_inode->i_mutex);
-+#else
- up(&hidden_inode->i_sem);
-+#endif
- print_exit_status(err);
- return err; /* assume all is ok */
- }
---- a/state.c
-+++ b/state.c
-@@ -44,7 +44,12 @@ int create_sto_reg_file(dentry_t *dentry
-
- /* lock parent */
- hidden_sto_dir_dentry = dget(hidden_sto_dentry->d_parent);
-+
-+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,16)
-+ mutex_lock(&hidden_sto_dir_dentry->d_inode->i_mutex);
-+#else
- down(&hidden_sto_dir_dentry->d_inode->i_sem);
-+#endif
-
- err = PTR_ERR(hidden_sto_dir_dentry);
- if (IS_ERR(hidden_sto_dir_dentry))
-@@ -97,7 +102,11 @@ int create_sto_reg_file(dentry_t *dentry
- hidden_sto_dir_dentry->d_inode);
-
- out_lock:
-+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,16)
-+ mutex_unlock(&hidden_sto_dir_dentry->d_inode->i_mutex);
-+#else
- up(&hidden_sto_dir_dentry->d_inode->i_sem);
-+#endif
- dput(hidden_sto_dir_dentry);
- out:
- return err;
-@@ -130,7 +139,12 @@ n");
-
- /* was: hidden_sto_dir_dentry = lock_parent(hidden_sto_dentry); */
- hidden_sto_dir_dentry = dget(hidden_sto_dentry->d_parent);
-+
-+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,16)
-+ mutex_lock(&hidden_sto_dir_dentry->d_inode->i_mutex);
-+#else
- down(&hidden_sto_dir_dentry->d_inode->i_sem);
-+#endif
-
- err = PTR_ERR(hidden_sto_dir_dentry);
- if (IS_ERR(hidden_sto_dir_dentry))
-@@ -184,7 +198,11 @@ n");
-
- out_lock:
- /* was: unlock_dir(hidden_sto_dir_dentry); */
-+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,16)
-+ mutex_unlock(&hidden_sto_dir_dentry->d_inode->i_mutex);
-+#else
- up(&hidden_sto_dir_dentry->d_inode->i_sem);
-+#endif
- dput(hidden_sto_dir_dentry);
- out:
- return err;
-@@ -217,7 +235,12 @@ int create_sto_nod(dentry_t *dentry, int
-
- /* lock parent */
- hidden_sto_dir_dentry = dget(hidden_sto_dentry->d_parent);
-+
-+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,16)
-+ mutex_lock(&hidden_sto_dir_dentry->d_inode->i_mutex);
-+#else
- down(&hidden_sto_dir_dentry->d_inode->i_sem);
-+#endif
-
- err = PTR_ERR(hidden_sto_dir_dentry);
- if (IS_ERR(hidden_sto_dir_dentry))
-@@ -260,7 +283,11 @@ int create_sto_nod(dentry_t *dentry, int
- fist_copy_attr_timesizes(dir, hidden_sto_dir_dentry->d_inode);
-
- out_lock:
-+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,16)
-+ mutex_unlock(&hidden_sto_dir_dentry->d_inode->i_mutex);
-+#else
- up(&hidden_sto_dir_dentry->d_inode->i_sem);
-+#endif
- dput(hidden_sto_dir_dentry);
- out:
- return err;
-@@ -314,7 +341,12 @@ int nondir_unmod_to_mod(dentry_t *dentry
-
- /* lock parent */
- hidden_sto_dir_dentry = dget(hidden_sto_dentry->d_parent);
-+
-+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,16)
-+ mutex_lock(&hidden_sto_dir_dentry->d_inode->i_mutex);
-+#else
- down(&hidden_sto_dir_dentry->d_inode->i_sem);
-+#endif
-
- err = PTR_ERR(hidden_sto_dir_dentry);
- if (IS_ERR(hidden_sto_dir_dentry))
-@@ -365,7 +397,12 @@ int nondir_unmod_to_mod(dentry_t *dentry
- if((cp_flag == 1) && S_ISREG(dentry->d_inode->i_mode)) {
-
- /* unlock first */
-+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,16)
-+ mutex_unlock(&hidden_sto_dir_dentry->d_inode->i_mutex);
-+#else
- up(&hidden_sto_dir_dentry->d_inode->i_sem);
-+#endif
-+
- dput(hidden_sto_dir_dentry);
-
- tgt_dentry = dtohd2(dentry);
-@@ -383,7 +420,11 @@ int nondir_unmod_to_mod(dentry_t *dentry
- }
-
- out_lock:
-+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,16)
-+ mutex_unlock(&hidden_sto_dir_dentry->d_inode->i_mutex);
-+#else
- up(&hidden_sto_dir_dentry->d_inode->i_sem);
-+#endif
- dput(hidden_sto_dir_dentry);
- out:
- return err;
-@@ -420,7 +461,12 @@ int nondir_creat_to_del(dentry_t *dentry
-
- /* was: hidden_sto_dir_dentry = lock_parent(hidden_sto_dentry);*/
- hidden_sto_dir_dentry = dget(hidden_sto_dentry->d_parent);
-+
-+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,16)
-+ mutex_lock(&hidden_sto_dir_dentry->d_inode->i_mutex);
-+#else
- down(&hidden_sto_dir_dentry->d_inode->i_sem);
-+#endif
-
- /* avoid destroying the hidden inode if the file is in use */
- dget(hidden_sto_dentry);
-@@ -435,7 +481,11 @@ int nondir_creat_to_del(dentry_t *dentry
- dtost(dentry) = NON_EXISTANT;
-
- /* was: unlock_dir(hidden_sto_dir_dentry); */
-+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,16)
-+ mutex_unlock(&hidden_sto_dir_dentry->d_inode->i_mutex);
-+#else
- up(&hidden_sto_dir_dentry->d_inode->i_sem);
-+#endif
- dput(hidden_sto_dir_dentry);
-
- out:
-@@ -464,7 +514,12 @@ int nondir_mod_to_del(dentry_t *dentry)
-
- /* was hidden_sto_dir_dentry = lock_parent(hidden_sto_dentry); */
- hidden_sto_dir_dentry = dget(hidden_sto_dentry->d_parent);
-+
-+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,16)
-+ mutex_lock(&hidden_sto_dir_dentry->d_inode->i_mutex);
-+#else
- down(&hidden_sto_dir_dentry->d_inode->i_sem);
-+#endif
-
- /* avoid destroying the hidden inode if the file is in use */
- dget(hidden_sto_dentry);
-@@ -488,7 +543,11 @@ int nondir_mod_to_del(dentry_t *dentry)
- dentry->d_name.len);
-
- /* was: unlock_dir(hidden_sto_dir_dentry); */
-+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,16)
-+ mutex_unlock(&hidden_sto_dir_dentry->d_inode->i_mutex);
-+#else
- up(&hidden_sto_dir_dentry->d_inode->i_sem);
-+#endif
- dput(hidden_sto_dir_dentry);
-
- out:
-