On Wed, Sep 13, 2023 at 08:10:09AM -0300, Christoph Hellwig <hch@xxxxxx> wrote: > Split the kernfs_kill_sb helper into helpers for the new split > shutdown_sb and free_sb methods. Note that resctrl has very odd > locking in ->kill_sb, so this commit only releases the locking > acquired in rdt_shutdown_sb in rdt_free_sb. This is not very good > code and relies on ->shutdown_sb and ->free_sb to always be called > in pairs, which it currently is. The next commit will try to clean > this up. > > Signed-off-by: Christoph Hellwig <hch@xxxxxx> > --- > arch/x86/kernel/cpu/resctrl/rdtgroup.c | 12 +++++++++--- > fs/kernfs/mount.c | 18 ++++++++---------- > fs/sysfs/mount.c | 7 ++++--- > include/linux/kernfs.h | 5 ++--- > kernel/cgroup/cgroup.c | 10 ++++++---- > 5 files changed, 29 insertions(+), 23 deletions(-) Reviewed-by: Michal Koutný <mkoutny@xxxxxxxx> (Also, I didn't find a necessity to have kernfs_free_sb(sb) under rdtgroup_mutex, so folding the following patch of the series may be fine too.)
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