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authorLinus Torvalds <torvalds@linux-foundation.org>2016-03-18 02:25:46 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2016-03-18 02:25:46 +0300
commit364e8dd9d636fea7def862919aac092b19b7c581 (patch)
treeabc0b5859a8cea40ac2d5fbee47dfabc276036c9 /Documentation
parent48d10bda1f2c69980601a61194015bb0790fb7ab (diff)
parent1ae1602de028acaa42a0f6ff18d19756f8e825c6 (diff)
downloadlinux-364e8dd9d636fea7def862919aac092b19b7c581.tar.xz
Merge tag 'configfs-for-linus' of git://git.infradead.org/users/hch/configfs
Pull configfs updates from Christoph Hellwig: - A large patch from me to simplify setting up the list of default groups by actually implementing it as a list instead of an array. - a small Y2083 prep patch from Deepa Dinamani. Probably doesn't matter on it's own, but it seems like he is trying to get rid of all CURRENT_TIME uses in file systems, which is a worthwhile goal. * tag 'configfs-for-linus' of git://git.infradead.org/users/hch/configfs: configfs: switch ->default groups to a linked list configfs: Replace CURRENT_TIME by current_fs_time()
Diffstat (limited to 'Documentation')
-rw-r--r--Documentation/filesystems/configfs/configfs.txt11
1 files changed, 6 insertions, 5 deletions
diff --git a/Documentation/filesystems/configfs/configfs.txt b/Documentation/filesystems/configfs/configfs.txt
index e5fe521eea1d..8ec9136aae56 100644
--- a/Documentation/filesystems/configfs/configfs.txt
+++ b/Documentation/filesystems/configfs/configfs.txt
@@ -250,7 +250,8 @@ child item.
struct config_item cg_item;
struct list_head cg_children;
struct configfs_subsystem *cg_subsys;
- struct config_group **default_groups;
+ struct list_head default_groups;
+ struct list_head group_entry;
};
void config_group_init(struct config_group *group);
@@ -420,15 +421,15 @@ These automatic subgroups, or default groups, do not preclude other
children of the parent group. If ct_group_ops->make_group() exists,
other child groups can be created on the parent group directly.
-A configfs subsystem specifies default groups by filling in the
-NULL-terminated array default_groups on the config_group structure.
-Each group in that array is populated in the configfs tree at the same
+A configfs subsystem specifies default groups by adding them using the
+configfs_add_default_group() function to the parent config_group
+structure. Each added group is populated in the configfs tree at the same
time as the parent group. Similarly, they are removed at the same time
as the parent. No extra notification is provided. When a ->drop_item()
method call notifies the subsystem the parent group is going away, it
also means every default group child associated with that parent group.
-As a consequence of this, default_groups cannot be removed directly via
+As a consequence of this, default groups cannot be removed directly via
rmdir(2). They also are not considered when rmdir(2) on the parent
group is checking for children.