diff options
Diffstat (limited to 'recipes/linux/linux-openmoko-2.6.30.4/215-mini_fo_2.6.30.patch')
| -rw-r--r-- | recipes/linux/linux-openmoko-2.6.30.4/215-mini_fo_2.6.30.patch | 157 |
1 files changed, 157 insertions, 0 deletions
diff --git a/recipes/linux/linux-openmoko-2.6.30.4/215-mini_fo_2.6.30.patch b/recipes/linux/linux-openmoko-2.6.30.4/215-mini_fo_2.6.30.patch new file mode 100644 index 0000000000..2d20920614 --- /dev/null +++ b/recipes/linux/linux-openmoko-2.6.30.4/215-mini_fo_2.6.30.patch @@ -0,0 +1,157 @@ +--- a/fs/mini_fo/aux.c ++++ b/fs/mini_fo/aux.c +@@ -86,8 +86,10 @@ int get_neg_sto_dentry(dentry_t *dentry) + len = dentry->d_name.len; + name = dentry->d_name.name; + ++ mutex_lock(&dtohd2(dentry->d_parent)->d_inode->i_mutex); + dtohd2(dentry) = + lookup_one_len(name, dtohd2(dentry->d_parent), len); ++ mutex_unlock(&dtohd2(dentry->d_parent)->d_inode->i_mutex); + + out: + return err; +@@ -426,7 +428,9 @@ int build_sto_structure(dentry_t *dir, d + const unsigned char *name; + len = dtohd(dentry)->d_name.len; + name = dtohd(dentry)->d_name.name; ++ mutex_lock(&dtohd2(dir)->d_inode->i_mutex); + hidden_sto_dentry = lookup_one_len(name, dtohd2(dir), len); ++ mutex_unlock(&dtohd2(dir)->d_inode->i_mutex); + dtohd2(dentry) = hidden_sto_dentry; + } + +--- a/fs/mini_fo/inode.c ++++ b/fs/mini_fo/inode.c +@@ -113,17 +113,23 @@ mini_fo_lookup(inode_t *dir, dentry_t *d + hidden_dir_dentry = hidden_dentry->d_parent; + kfree(bpath); + } +- else if(hidden_dir_dentry && hidden_dir_dentry->d_inode) ++ else if(hidden_dir_dentry && hidden_dir_dentry->d_inode) { ++ mutex_lock(&hidden_dir_dentry->d_inode->i_mutex); + hidden_dentry = + lookup_one_len(name, hidden_dir_dentry, namelen); +- else ++ mutex_unlock(&hidden_dir_dentry->d_inode->i_mutex); ++ } else { + hidden_dentry = NULL; ++ } + +- if(hidden_sto_dir_dentry && hidden_sto_dir_dentry->d_inode) ++ if(hidden_sto_dir_dentry && hidden_sto_dir_dentry->d_inode) { ++ mutex_lock(&hidden_sto_dir_dentry->d_inode->i_mutex); + hidden_sto_dentry = + lookup_one_len(name, hidden_sto_dir_dentry, namelen); +- else ++ mutex_unlock(&hidden_sto_dir_dentry->d_inode->i_mutex); ++ } else { + hidden_sto_dentry = NULL; ++ } + + /* catch error in lookup */ + if (IS_ERR(hidden_dentry) || IS_ERR(hidden_sto_dentry)) { +@@ -553,9 +559,11 @@ mini_fo_rmdir(inode_t *dir, dentry_t *de + #endif + + /* Delete an old WOL file contained in the storage dir */ ++ mutex_lock(&hidden_sto_dentry->d_inode->i_mutex); + meta_dentry = lookup_one_len(META_FILENAME, + hidden_sto_dentry, + strlen(META_FILENAME)); ++ mutex_unlock(&hidden_sto_dentry->d_inode->i_mutex); + if(meta_dentry->d_inode) { + err = vfs_unlink(hidden_sto_dentry->d_inode, meta_dentry); + dput(meta_dentry); +@@ -643,9 +651,11 @@ mini_fo_rmdir(inode_t *dir, dentry_t *de + #endif + + /* Delete an old WOL file contained in the storage dir */ ++ mutex_lock(&hidden_sto_dentry->d_inode->i_mutex); + meta_dentry = lookup_one_len(META_FILENAME, + hidden_sto_dentry, + strlen(META_FILENAME)); ++ mutex_unlock(&hidden_sto_dentry->d_inode->i_mutex); + if(meta_dentry->d_inode) { + /* is this necessary? dget(meta_dentry); */ + err = vfs_unlink(hidden_sto_dentry->d_inode, +@@ -688,9 +698,11 @@ mini_fo_rmdir(inode_t *dir, dentry_t *de + #endif + + /* Delete an old WOL file contained in the storage dir */ ++ mutex_lock(&hidden_sto_dentry->d_inode->i_mutex); + meta_dentry = lookup_one_len(META_FILENAME, + hidden_sto_dentry, + strlen(META_FILENAME)); ++ mutex_unlock(&hidden_sto_dentry->d_inode->i_mutex); + if(meta_dentry->d_inode) { + /* is this necessary? dget(meta_dentry); */ + err = vfs_unlink(hidden_sto_dentry->d_inode, +--- a/fs/mini_fo/meta.c ++++ b/fs/mini_fo/meta.c +@@ -43,9 +43,11 @@ int meta_build_lists(dentry_t *dentry) + + /* might there be a META-file? */ + if(dtohd2(dentry) && dtohd2(dentry)->d_inode) { ++ mutex_lock(&dtohd2(dentry)->d_inode->i_mutex); + meta_dentry = lookup_one_len(META_FILENAME, + dtohd2(dentry), + strlen(META_FILENAME)); ++ mutex_unlock(&dtohd2(dentry)->d_inode->i_mutex); + if(!meta_dentry->d_inode) { + dput(meta_dentry); + goto out_ok; +@@ -426,8 +428,11 @@ int meta_write_d_entry(dentry_t *dentry, + goto out; + } + } ++ ++ mutex_lock(&dtohd2(dentry)->d_inode->i_mutex); + meta_dentry = lookup_one_len(META_FILENAME, + dtohd2(dentry), strlen (META_FILENAME)); ++ mutex_unlock(&dtohd2(dentry)->d_inode->i_mutex); + + /* We need to create a META-file */ + if(!meta_dentry->d_inode) { +@@ -527,9 +532,13 @@ int meta_write_r_entry(dentry_t *dentry, + goto out; + } + } ++ ++ mutex_lock(&dtohd2(dentry)->d_inode->i_mutex); + meta_dentry = lookup_one_len(META_FILENAME, + dtohd2(dentry), + strlen (META_FILENAME)); ++ mutex_unlock(&dtohd2(dentry)->d_inode->i_mutex); ++ + if(!meta_dentry->d_inode) { + /* We need to create a META-file */ + #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0) +@@ -641,9 +650,13 @@ int meta_sync_d_list(dentry_t *dentry, i + goto out; + } + } ++ ++ mutex_lock(&dtohd2(dentry)->d_inode->i_mutex); + meta_dentry = lookup_one_len(META_FILENAME, + dtohd2(dentry), + strlen(META_FILENAME)); ++ mutex_unlock(&dtohd2(dentry)->d_inode->i_mutex); ++ + if(!meta_dentry->d_inode) { + /* We need to create a META-file */ + #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0) +@@ -784,9 +797,13 @@ int meta_sync_r_list(dentry_t *dentry, i + goto out; + } + } ++ ++ mutex_lock(&dtohd2(dentry)->d_inode->i_mutex); + meta_dentry = lookup_one_len(META_FILENAME, + dtohd2(dentry), + strlen(META_FILENAME)); ++ mutex_unlock(&dtohd2(dentry)->d_inode->i_mutex); ++ + if(!meta_dentry->d_inode) { + /* We need to create a META-file */ + #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0) |