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authorLinus Torvalds <torvalds@linux-foundation.org>2008-07-17 10:55:51 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2008-07-17 10:55:51 -0700
commit5b664cb235e97afbf34db9c4d77f08ebd725335e (patch)
tree518540649c38342209790de8e0b575ac1a6fa722 /Documentation/filesystems
parentf39548a6ad1dbdfaab552419386ec5bb1d76fa0d (diff)
parentc0420ad2ca514551ca086510b0e7d17a05c70492 (diff)
Merge branch 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mfasheh/ocfs2
* 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mfasheh/ocfs2: [PATCH] ocfs2: fix oops in mmap_truncate testing configfs: call drop_link() to cleanup after create_link() failure configfs: Allow ->make_item() and ->make_group() to return detailed errors. configfs: Fix failing mkdir() making racing rmdir() fail configfs: Fix deadlock with racing rmdir() and rename() configfs: Make configfs_new_dirent() return error code instead of NULL configfs: Protect configfs_dirent s_links list mutations configfs: Introduce configfs_dirent_lock ocfs2: Don't snprintf() without a format. ocfs2: Fix CONFIG_OCFS2_DEBUG_FS #ifdefs ocfs2/net: Silence build warnings on sparc64 ocfs2: Handle error during journal load ocfs2: Silence an error message in ocfs2_file_aio_read() ocfs2: use simple_read_from_buffer() ocfs2: fix printk format warnings with OCFS2_FS_STATS=n [PATCH 2/2] ocfs2: Instrument fs cluster locks [PATCH 1/2] ocfs2: Add CONFIG_OCFS2_FS_STATS config option
Diffstat (limited to 'Documentation/filesystems')
-rw-r--r--Documentation/filesystems/configfs/configfs.txt10
-rw-r--r--Documentation/filesystems/configfs/configfs_example.c14
2 files changed, 14 insertions, 10 deletions
diff --git a/Documentation/filesystems/configfs/configfs.txt b/Documentation/filesystems/configfs/configfs.txt
index 44c97e6accb2..15838d706ea2 100644
--- a/Documentation/filesystems/configfs/configfs.txt
+++ b/Documentation/filesystems/configfs/configfs.txt
@@ -233,10 +233,12 @@ accomplished via the group operations specified on the group's
config_item_type.
struct configfs_group_operations {
- struct config_item *(*make_item)(struct config_group *group,
- const char *name);
- struct config_group *(*make_group)(struct config_group *group,
- const char *name);
+ int (*make_item)(struct config_group *group,
+ const char *name,
+ struct config_item **new_item);
+ int (*make_group)(struct config_group *group,
+ const char *name,
+ struct config_group **new_group);
int (*commit_item)(struct config_item *item);
void (*disconnect_notify)(struct config_group *group,
struct config_item *item);
diff --git a/Documentation/filesystems/configfs/configfs_example.c b/Documentation/filesystems/configfs/configfs_example.c
index 25151fd5c2c6..0b422acd470c 100644
--- a/Documentation/filesystems/configfs/configfs_example.c
+++ b/Documentation/filesystems/configfs/configfs_example.c
@@ -273,13 +273,13 @@ static inline struct simple_children *to_simple_children(struct config_item *ite
return item ? container_of(to_config_group(item), struct simple_children, group) : NULL;
}
-static struct config_item *simple_children_make_item(struct config_group *group, const char *name)
+static int simple_children_make_item(struct config_group *group, const char *name, struct config_item **new_item)
{
struct simple_child *simple_child;
simple_child = kzalloc(sizeof(struct simple_child), GFP_KERNEL);
if (!simple_child)
- return NULL;
+ return -ENOMEM;
config_item_init_type_name(&simple_child->item, name,
@@ -287,7 +287,8 @@ static struct config_item *simple_children_make_item(struct config_group *group,
simple_child->storeme = 0;
- return &simple_child->item;
+ *new_item = &simple_child->item;
+ return 0;
}
static struct configfs_attribute simple_children_attr_description = {
@@ -359,20 +360,21 @@ static struct configfs_subsystem simple_children_subsys = {
* children of its own.
*/
-static struct config_group *group_children_make_group(struct config_group *group, const char *name)
+static int group_children_make_group(struct config_group *group, const char *name, struct config_group **new_group)
{
struct simple_children *simple_children;
simple_children = kzalloc(sizeof(struct simple_children),
GFP_KERNEL);
if (!simple_children)
- return NULL;
+ return -ENOMEM;
config_group_init_type_name(&simple_children->group, name,
&simple_children_type);
- return &simple_children->group;
+ *new_group = &simple_children->group;
+ return 0;
}
static struct configfs_attribute group_children_attr_description = {