ocfs2: don't pass handle to ocfs2_meta_lock() in orphan dir code

Take and drop the locks directly.

Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>

1 files changed, 39 insertions, 27 deletions

diff --git a/fs/ocfs2/namei.c b/fs/ocfs2/namei.c
index 79f513001a6..dc2e89a0c4a 100644
--- a/fs/ocfs2/namei.c
+++ b/fs/ocfs2/namei.c
@@ -112,7 +112,7 @@ static int ocfs2_double_lock(struct ocfs2_super *osb,
                              struct inode *inode2);
 
 static int ocfs2_prepare_orphan_dir(struct ocfs2_super *osb,
-                                    struct ocfs2_journal_handle *handle,
+                                    struct inode **ret_orphan_dir,
                                     struct inode *inode,
                                     char *name,
                                     struct buffer_head **de_bh);
@@ -122,7 +122,8 @@ static int ocfs2_orphan_add(struct ocfs2_super *osb,
                             struct inode *inode,
                             struct ocfs2_dinode *fe,
                             char *name,
-                            struct buffer_head *de_bh);
+                            struct buffer_head *de_bh,
+                            struct inode *orphan_dir_inode);
 
 static int ocfs2_create_symlink_data(struct ocfs2_super *osb,
                                      struct ocfs2_journal_handle *handle,
@@ -813,6 +814,7 @@ static int ocfs2_unlink(struct inode *dir,
 {
         int status;
         struct inode *inode = dentry->d_inode;
+        struct inode *orphan_dir = NULL;
         struct ocfs2_super *osb = OCFS2_SB(dir->i_sb);
         u64 blkno;
         struct ocfs2_dinode *fe = NULL;
@@ -895,7 +897,7 @@ static int ocfs2_unlink(struct inode *dir,
         }
 
         if (inode_is_unlinkable(inode)) {
-                status = ocfs2_prepare_orphan_dir(osb, handle, inode,
+                status = ocfs2_prepare_orphan_dir(osb, &orphan_dir, inode,
                                                   orphan_name,
                                                   &orphan_entry_bh);
                 if (status < 0) {
@@ -923,7 +925,7 @@ static int ocfs2_unlink(struct inode *dir,
 
         if (inode_is_unlinkable(inode)) {
                 status = ocfs2_orphan_add(osb, handle, inode, fe, orphan_name,
-                                          orphan_entry_bh);
+                                          orphan_entry_bh, orphan_dir);
                 if (status < 0) {
                         mlog_errno(status);
                         goto leave;
@@ -962,6 +964,13 @@ leave:
         if (handle)
                 ocfs2_commit_trans(handle);
 
+        if (orphan_dir) {
+                /* This was locked for us in ocfs2_prepare_orphan_dir() */
+                ocfs2_meta_unlock(orphan_dir, 1);
+                mutex_unlock(&orphan_dir->i_mutex);
+                iput(orphan_dir);
+        }
+
         if (fe_bh)
                 brelse(fe_bh);
 
@@ -1053,6 +1062,7 @@ static int ocfs2_rename(struct inode *old_dir,
         int status = 0, rename_lock = 0;
         struct inode *old_inode = old_dentry->d_inode;
         struct inode *new_inode = new_dentry->d_inode;
+        struct inode *orphan_dir = NULL;
         struct ocfs2_dinode *newfe = NULL;
         char orphan_name[OCFS2_ORPHAN_NAMELEN + 1];
         struct buffer_head *orphan_entry_bh = NULL;
@@ -1252,7 +1262,7 @@ static int ocfs2_rename(struct inode *old_dir,
                      (unsigned long long)newfe_bh->b_blocknr : 0ULL);
 
                 if (S_ISDIR(new_inode->i_mode) || (new_inode->i_nlink == 1)) {
-                        status = ocfs2_prepare_orphan_dir(osb, handle,
+                        status = ocfs2_prepare_orphan_dir(osb, &orphan_dir,
                                                           new_inode,
                                                           orphan_name,
                                                           &orphan_entry_bh);
@@ -1307,7 +1317,7 @@ static int ocfs2_rename(struct inode *old_dir,
                     (newfe->i_links_count == cpu_to_le16(1))){
                         status = ocfs2_orphan_add(osb, handle, new_inode,
                                                   newfe, orphan_name,
-                                                  orphan_entry_bh);
+                                                  orphan_entry_bh, orphan_dir);
                         if (status < 0) {
                                 mlog_errno(status);
                                 goto bail;
@@ -1426,6 +1436,13 @@ bail:
         if (handle)
                 ocfs2_commit_trans(handle);
 
+        if (orphan_dir) {
+                /* This was locked for us in ocfs2_prepare_orphan_dir() */
+                ocfs2_meta_unlock(orphan_dir, 1);
+                mutex_unlock(&orphan_dir->i_mutex);
+                iput(orphan_dir);
+        }
+
         if (new_inode)
                 sync_mapping_buffers(old_inode->i_mapping);
 
@@ -2085,19 +2102,19 @@ bail:
 }
 
 static int ocfs2_prepare_orphan_dir(struct ocfs2_super *osb,
-                                    struct ocfs2_journal_handle *handle,
+                                    struct inode **ret_orphan_dir,
                                     struct inode *inode,
                                     char *name,
                                     struct buffer_head **de_bh)
 {
-        struct inode *orphan_dir_inode = NULL;
+        struct inode *orphan_dir_inode;
         struct buffer_head *orphan_dir_bh = NULL;
         int status = 0;
 
         status = ocfs2_blkno_stringify(OCFS2_I(inode)->ip_blkno, name);
         if (status < 0) {
                 mlog_errno(status);
-                goto leave;
+                return status;
         }
 
         orphan_dir_inode = ocfs2_get_system_file_inode(osb,
@@ -2106,11 +2123,12 @@ static int ocfs2_prepare_orphan_dir(struct ocfs2_super *osb,
         if (!orphan_dir_inode) {
                 status = -ENOENT;
                 mlog_errno(status);
-                goto leave;
+                return status;
         }
 
-        ocfs2_handle_add_inode(handle, orphan_dir_inode);
-        status = ocfs2_meta_lock(orphan_dir_inode, handle, &orphan_dir_bh, 1);
+        mutex_lock(&orphan_dir_inode->i_mutex);
+
+        status = ocfs2_meta_lock(orphan_dir_inode, NULL, &orphan_dir_bh, 1);
         if (status < 0) {
                 mlog_errno(status);
                 goto leave;
@@ -2120,13 +2138,19 @@ static int ocfs2_prepare_orphan_dir(struct ocfs2_super *osb,
                                               orphan_dir_bh, name,
                                               OCFS2_ORPHAN_NAMELEN, de_bh);
         if (status < 0) {
+                ocfs2_meta_unlock(orphan_dir_inode, 1);
+
                 mlog_errno(status);
                 goto leave;
         }
 
+        *ret_orphan_dir = orphan_dir_inode;
+
 leave:
-        if (orphan_dir_inode)
+        if (status) {
+                mutex_unlock(&orphan_dir_inode->i_mutex);
                 iput(orphan_dir_inode);
+        }
 
         if (orphan_dir_bh)
                 brelse(orphan_dir_bh);
@@ -2140,24 +2164,15 @@ static int ocfs2_orphan_add(struct ocfs2_super *osb,
                             struct inode *inode,
                             struct ocfs2_dinode *fe,
                             char *name,
-                            struct buffer_head *de_bh)
+                            struct buffer_head *de_bh,
+                            struct inode *orphan_dir_inode)
 {
-        struct inode *orphan_dir_inode = NULL;
         struct buffer_head *orphan_dir_bh = NULL;
         int status = 0;
         struct ocfs2_dinode *orphan_fe;
 
         mlog_entry("(inode->i_ino = %lu)\n", inode->i_ino);
 
-        orphan_dir_inode = ocfs2_get_system_file_inode(osb,
-                                                       ORPHAN_DIR_SYSTEM_INODE,
-                                                       osb->slot_num);
-        if (!orphan_dir_inode) {
-                status = -ENOENT;
-                mlog_errno(status);
-                goto leave;
-        }
-
         status = ocfs2_read_block(osb,
                                   OCFS2_I(orphan_dir_inode)->ip_blkno,
                                   &orphan_dir_bh, OCFS2_BH_CACHED,
@@ -2209,9 +2224,6 @@ static int ocfs2_orphan_add(struct ocfs2_super *osb,
              (unsigned long long)OCFS2_I(inode)->ip_blkno, osb->slot_num);
 
 leave:
-        if (orphan_dir_inode)
-                iput(orphan_dir_inode);
-
         if (orphan_dir_bh)
                 brelse(orphan_dir_bh);