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author | Al Viro <viro@zeniv.linux.org.uk> | 2016-01-22 23:40:57 +0300 |
---|---|---|
committer | Al Viro <viro@zeniv.linux.org.uk> | 2016-01-23 02:04:28 +0300 |
commit | 5955102c9984fa081b2d570cfac75c97eecf8f3b (patch) | |
tree | a4744386eac4b916e847eb4eedfada158f6527b4 /fs/ecryptfs | |
parent | 57b8f112cfe6622ddddb8c2641206bb5fa8a112d (diff) | |
download | linux-5955102c9984fa081b2d570cfac75c97eecf8f3b.tar.xz |
wrappers for ->i_mutex access
parallel to mutex_{lock,unlock,trylock,is_locked,lock_nested},
inode_foo(inode) being mutex_foo(&inode->i_mutex).
Please, use those for access to ->i_mutex; over the coming cycle
->i_mutex will become rwsem, with ->lookup() done with it held
only shared.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'fs/ecryptfs')
-rw-r--r-- | fs/ecryptfs/inode.c | 32 | ||||
-rw-r--r-- | fs/ecryptfs/mmap.c | 4 |
2 files changed, 18 insertions, 18 deletions
diff --git a/fs/ecryptfs/inode.c b/fs/ecryptfs/inode.c index 040aa879d634..4e685ac1024d 100644 --- a/fs/ecryptfs/inode.c +++ b/fs/ecryptfs/inode.c @@ -41,13 +41,13 @@ static struct dentry *lock_parent(struct dentry *dentry) struct dentry *dir; dir = dget_parent(dentry); - mutex_lock_nested(&(d_inode(dir)->i_mutex), I_MUTEX_PARENT); + inode_lock_nested(d_inode(dir), I_MUTEX_PARENT); return dir; } static void unlock_dir(struct dentry *dir) { - mutex_unlock(&d_inode(dir)->i_mutex); + inode_unlock(d_inode(dir)); dput(dir); } @@ -397,11 +397,11 @@ static struct dentry *ecryptfs_lookup(struct inode *ecryptfs_dir_inode, int rc = 0; lower_dir_dentry = ecryptfs_dentry_to_lower(ecryptfs_dentry->d_parent); - mutex_lock(&d_inode(lower_dir_dentry)->i_mutex); + inode_lock(d_inode(lower_dir_dentry)); lower_dentry = lookup_one_len(ecryptfs_dentry->d_name.name, lower_dir_dentry, ecryptfs_dentry->d_name.len); - mutex_unlock(&d_inode(lower_dir_dentry)->i_mutex); + inode_unlock(d_inode(lower_dir_dentry)); if (IS_ERR(lower_dentry)) { rc = PTR_ERR(lower_dentry); ecryptfs_printk(KERN_DEBUG, "%s: lookup_one_len() returned " @@ -426,11 +426,11 @@ static struct dentry *ecryptfs_lookup(struct inode *ecryptfs_dir_inode, "filename; rc = [%d]\n", __func__, rc); goto out; } - mutex_lock(&d_inode(lower_dir_dentry)->i_mutex); + inode_lock(d_inode(lower_dir_dentry)); lower_dentry = lookup_one_len(encrypted_and_encoded_name, lower_dir_dentry, encrypted_and_encoded_name_size); - mutex_unlock(&d_inode(lower_dir_dentry)->i_mutex); + inode_unlock(d_inode(lower_dir_dentry)); if (IS_ERR(lower_dentry)) { rc = PTR_ERR(lower_dentry); ecryptfs_printk(KERN_DEBUG, "%s: lookup_one_len() returned " @@ -869,9 +869,9 @@ int ecryptfs_truncate(struct dentry *dentry, loff_t new_length) if (!rc && lower_ia.ia_valid & ATTR_SIZE) { struct dentry *lower_dentry = ecryptfs_dentry_to_lower(dentry); - mutex_lock(&d_inode(lower_dentry)->i_mutex); + inode_lock(d_inode(lower_dentry)); rc = notify_change(lower_dentry, &lower_ia, NULL); - mutex_unlock(&d_inode(lower_dentry)->i_mutex); + inode_unlock(d_inode(lower_dentry)); } return rc; } @@ -970,9 +970,9 @@ static int ecryptfs_setattr(struct dentry *dentry, struct iattr *ia) if (lower_ia.ia_valid & (ATTR_KILL_SUID | ATTR_KILL_SGID)) lower_ia.ia_valid &= ~ATTR_MODE; - mutex_lock(&d_inode(lower_dentry)->i_mutex); + inode_lock(d_inode(lower_dentry)); rc = notify_change(lower_dentry, &lower_ia, NULL); - mutex_unlock(&d_inode(lower_dentry)->i_mutex); + inode_unlock(d_inode(lower_dentry)); out: fsstack_copy_attr_all(inode, lower_inode); return rc; @@ -1048,10 +1048,10 @@ ecryptfs_getxattr_lower(struct dentry *lower_dentry, const char *name, rc = -EOPNOTSUPP; goto out; } - mutex_lock(&d_inode(lower_dentry)->i_mutex); + inode_lock(d_inode(lower_dentry)); rc = d_inode(lower_dentry)->i_op->getxattr(lower_dentry, name, value, size); - mutex_unlock(&d_inode(lower_dentry)->i_mutex); + inode_unlock(d_inode(lower_dentry)); out: return rc; } @@ -1075,9 +1075,9 @@ ecryptfs_listxattr(struct dentry *dentry, char *list, size_t size) rc = -EOPNOTSUPP; goto out; } - mutex_lock(&d_inode(lower_dentry)->i_mutex); + inode_lock(d_inode(lower_dentry)); rc = d_inode(lower_dentry)->i_op->listxattr(lower_dentry, list, size); - mutex_unlock(&d_inode(lower_dentry)->i_mutex); + inode_unlock(d_inode(lower_dentry)); out: return rc; } @@ -1092,9 +1092,9 @@ static int ecryptfs_removexattr(struct dentry *dentry, const char *name) rc = -EOPNOTSUPP; goto out; } - mutex_lock(&d_inode(lower_dentry)->i_mutex); + inode_lock(d_inode(lower_dentry)); rc = d_inode(lower_dentry)->i_op->removexattr(lower_dentry, name); - mutex_unlock(&d_inode(lower_dentry)->i_mutex); + inode_unlock(d_inode(lower_dentry)); out: return rc; } diff --git a/fs/ecryptfs/mmap.c b/fs/ecryptfs/mmap.c index caba848ac763..c6ced4cbf0cf 100644 --- a/fs/ecryptfs/mmap.c +++ b/fs/ecryptfs/mmap.c @@ -436,7 +436,7 @@ static int ecryptfs_write_inode_size_to_xattr(struct inode *ecryptfs_inode) rc = -ENOMEM; goto out; } - mutex_lock(&lower_inode->i_mutex); + inode_lock(lower_inode); size = lower_inode->i_op->getxattr(lower_dentry, ECRYPTFS_XATTR_NAME, xattr_virt, PAGE_CACHE_SIZE); if (size < 0) @@ -444,7 +444,7 @@ static int ecryptfs_write_inode_size_to_xattr(struct inode *ecryptfs_inode) put_unaligned_be64(i_size_read(ecryptfs_inode), xattr_virt); rc = lower_inode->i_op->setxattr(lower_dentry, ECRYPTFS_XATTR_NAME, xattr_virt, size, 0); - mutex_unlock(&lower_inode->i_mutex); + inode_unlock(lower_inode); if (rc) printk(KERN_ERR "Error whilst attempting to write inode size " "to lower file xattr; rc = [%d]\n", rc); |