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authorSatyam Sharma <ssatyam@cse.iitk.ac.in>2007-07-04 07:07:16 -0400
committerMark Fasheh <mark.fasheh@oracle.com>2007-07-10 20:02:31 -0400
commit3fe6c5ce1176cf661dbe71fc43b627c1a742a89a (patch)
treebe94563e2ba49f7116e866e57253b5ed82fb85ee /fs/ocfs2
parent9b1d9aa4e9c5cafe73b9df21d758b50b5d75264d (diff)
[PATCH] configfs+dlm: Rename config_group_find_obj and state semantics clearly
Configfs being based upon sysfs code, config_group_find_obj() is probably so named because of the similar kset_find_obj() in sysfs. However, "kobject"s in sysfs become "config_item"s in configfs, so let's call it config_group_find_item() instead, for sake of uniformity, and make corresponding change in the users of this function. BTW a crucial difference between kset_find_obj and config_group_find_item is in locking expectations. kset_find_obj does its locking by itself, but config_group_find_item expects the *caller* to do the locking. The reason for this: kset's have their own locks, config_group's don't but instead rely on the subsystem mutex. And, subsystem needn't necessarily be around when config_group_find_item() is called. So let's state these locking semantics explicitly, and rectify the comment, otherwise bugs could continue to occur in future, as they did in the past (refer commit d82b8191e238 in gfs2-2.6-fixes.git). [ I also took the opportunity to fix some bad whitespace and double-empty lines. --Joel ] [ Conflict in fs/dlm/config.c with commit 3168b0780d06ace875696f8a648d04d6089654e5 manually resolved. --Mark ] Signed-off-by: Satyam Sharma <ssatyam@cse.iitk.ac.in> Cc: David Teigland <teigland@redhat.com> Signed-off-by: Joel Becker <joel.becker@oracle.com> Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
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