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Diffstat (limited to 'fs/reiserfs/namei.c')
-rw-r--r--fs/reiserfs/namei.c20
1 files changed, 14 insertions, 6 deletions
diff --git a/fs/reiserfs/namei.c b/fs/reiserfs/namei.c
index 27157912863..e296ff72a6c 100644
--- a/fs/reiserfs/namei.c
+++ b/fs/reiserfs/namei.c
@@ -324,6 +324,7 @@ static struct dentry *reiserfs_lookup(struct inode *dir, struct dentry *dentry,
struct nameidata *nd)
{
int retval;
+ int lock_depth;
struct inode *inode = NULL;
struct reiserfs_dir_entry de;
INITIALIZE_PATH(path_to_entry);
@@ -331,7 +332,13 @@ static struct dentry *reiserfs_lookup(struct inode *dir, struct dentry *dentry,
if (REISERFS_MAX_NAME(dir->i_sb->s_blocksize) < dentry->d_name.len)
return ERR_PTR(-ENAMETOOLONG);
- reiserfs_write_lock(dir->i_sb);
+ /*
+ * Might be called with or without the write lock, must be careful
+ * to not recursively hold it in case we want to release the lock
+ * before rescheduling.
+ */
+ lock_depth = reiserfs_write_lock_once(dir->i_sb);
+
de.de_gen_number_bit_string = NULL;
retval =
reiserfs_find_entry(dir, dentry->d_name.name, dentry->d_name.len,
@@ -341,7 +348,7 @@ static struct dentry *reiserfs_lookup(struct inode *dir, struct dentry *dentry,
inode = reiserfs_iget(dir->i_sb,
(struct cpu_key *)&(de.de_dir_id));
if (!inode || IS_ERR(inode)) {
- reiserfs_write_unlock(dir->i_sb);
+ reiserfs_write_unlock_once(dir->i_sb, lock_depth);
return ERR_PTR(-EACCES);
}
@@ -350,7 +357,7 @@ static struct dentry *reiserfs_lookup(struct inode *dir, struct dentry *dentry,
if (IS_PRIVATE(dir))
inode->i_flags |= S_PRIVATE;
}
- reiserfs_write_unlock(dir->i_sb);
+ reiserfs_write_unlock_once(dir->i_sb, lock_depth);
if (retval == IO_ERROR) {
return ERR_PTR(-EIO);
}
@@ -725,6 +732,7 @@ static int reiserfs_mkdir(struct inode *dir, struct dentry *dentry, int mode)
struct inode *inode;
struct reiserfs_transaction_handle th;
struct reiserfs_security_handle security;
+ int lock_depth;
/* We need blocks for transaction + (user+group)*(quotas for new inode + update of quota for directory owner) */
int jbegin_count =
JOURNAL_PER_BALANCE_CNT * 3 +
@@ -748,7 +756,7 @@ static int reiserfs_mkdir(struct inode *dir, struct dentry *dentry, int mode)
return retval;
}
jbegin_count += retval;
- reiserfs_write_lock(dir->i_sb);
+ lock_depth = reiserfs_write_lock_once(dir->i_sb);
retval = journal_begin(&th, dir->i_sb, jbegin_count);
if (retval) {
@@ -798,8 +806,8 @@ static int reiserfs_mkdir(struct inode *dir, struct dentry *dentry, int mode)
d_instantiate(dentry, inode);
unlock_new_inode(inode);
retval = journal_end(&th, dir->i_sb, jbegin_count);
- out_failed:
- reiserfs_write_unlock(dir->i_sb);
+out_failed:
+ reiserfs_write_unlock_once(dir->i_sb, lock_depth);
return retval;
}