diff options
| -rw-r--r-- | driver-core/sysfs-differentiate-between-locking-links-and-non-links.patch | 62 | ||||
| -rw-r--r-- | series | 1 |
2 files changed, 0 insertions, 63 deletions
diff --git a/driver-core/sysfs-differentiate-between-locking-links-and-non-links.patch b/driver-core/sysfs-differentiate-between-locking-links-and-non-links.patch deleted file mode 100644 index 8f4db1516eae61..00000000000000 --- a/driver-core/sysfs-differentiate-between-locking-links-and-non-links.patch +++ /dev/null @@ -1,62 +0,0 @@ -From neilb@suse.de Wed Feb 17 14:37:21 2010 -From: Neil Brown <neilb@suse.de> -Date: Wed, 10 Feb 2010 12:09:33 +1100 -Subject: sysfs: differentiate between locking links and non-links -To: Eric W Biederman <ebiederm@xmission.com> -Cc: Tejun Heo <tj@kernel.org>, Greg Kroah-Hartman <gregkh@suse.de> -Message-ID: <19314.1869.847327.15190@notabene.brown> - -sysfs: differentiate between locking links and non-links for sysfs - -symlinks and non-symlink is sysfs are very different. -A symlink can never be locked (active) while an attribute -modification routine is running. So removing symlink from an -attribute 'store' routine should be permitted without any lockdep -warnings. - -So split the lockdep context for 's_active' in two, one for symlinks -and other for everything else. - -Signed-off-by: NeilBrown <neilb@suse.de> -Cc: Eric Biederman <ebiederm@xmission.com> -Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de> - ---- - fs/sysfs/dir.c | 5 ++++- - fs/sysfs/sysfs.h | 6 +++--- - 2 files changed, 7 insertions(+), 4 deletions(-) - ---- a/fs/sysfs/dir.c -+++ b/fs/sysfs/dir.c -@@ -354,7 +354,10 @@ struct sysfs_dirent *sysfs_new_dirent(co - - atomic_set(&sd->s_count, 1); - atomic_set(&sd->s_active, 0); -- sysfs_dirent_init_lockdep(sd); -+ if (type & SYSFS_KOBJ_LINK) -+ sysfs_dirent_init_lockdep(sd, "link"); -+ else -+ sysfs_dirent_init_lockdep(sd, "non_link"); - - sd->s_name = name; - sd->s_mode = mode; ---- a/fs/sysfs/sysfs.h -+++ b/fs/sysfs/sysfs.h -@@ -89,14 +89,14 @@ static inline unsigned int sysfs_type(st - } - - #ifdef CONFIG_DEBUG_LOCK_ALLOC --#define sysfs_dirent_init_lockdep(sd) \ -+#define sysfs_dirent_init_lockdep(sd, type) \ - do { \ - static struct lock_class_key __key; \ - \ -- lockdep_init_map(&sd->dep_map, "s_active", &__key, 0); \ -+ lockdep_init_map(&sd->dep_map, "s_active_" type, &__key, 0); \ - } while(0) - #else --#define sysfs_dirent_init_lockdep(sd) do {} while(0) -+#define sysfs_dirent_init_lockdep(sd, type) do {} while(0) - #endif - - /* @@ -69,7 +69,6 @@ driver-core/w1-move-omap_hdq-s-probe-function-to-.devinit.text.patch driver-core/media-move-omap24xxcam-s-probe-function-to-.devinit.text.patch driver-core/auxdisplay-move-cfag12864bfb-s-probe-function-to-.devinit.text.patch driver-core/net-move-am79c961-s-probe-function-to-.devinit.text.patch -driver-core/sysfs-differentiate-between-locking-links-and-non-links.patch driver-core/uio-add-a-driver-for-hilscher-netx-based-fieldbus-cards.patch driver-core/uio-minor-kconfig-fixes.patch driver-core/uio-remove-smx-cryptengine-driver.patch |