Hi, This fixes a long-standing problem[1] with pstore where the filesystem view of backend records was not updated when the backend was unloaded (in a modular build) through pstore_unregister(). This series is mostly refactoring and improvements to the various locking semantics around management of the active backend and the filesystem mount before ultimately providing the routine to walk the filesystem to remove the records associated with a given backend.
I'm still doing more build and runtime testing, but I just wanted to get this posted so I can let other people look at it if they want while the testing finishes. Thanks! -Kees [1] https://lore.kernel.org/lkml/87o8yrmv69....@suse.com Kees Cook (10): pstore: Drop useless try_module_get() for backend pstore: Rename "pstore_lock" to "psinfo_lock" pstore: Convert "psinfo" locking to mutex pstore: Rename "allpstore" to "records_list" pstore: Convert "records_list" locking to mutex pstore: Add proper unregister lock checking pstore: Refactor pstorefs record list removal pstore: Add locking around superblock changes pstore: Do not leave timer disabled for next backend pstore: Remove filesystem records when backend is unregistered fs/pstore/inode.c | 127 +++++++++++++++++++++++++++++++------------ fs/pstore/internal.h | 2 +- fs/pstore/platform.c | 72 ++++++++++++++---------- 3 files changed, 134 insertions(+), 67 deletions(-) -- 2.20.1
