Hi All, First of all, apologies for the delay: illness ruled out my plans for having this out for a review as intended. Anyway this is an updated version of the patchset for generic filesystem events interface [1][2], hopefully handling issues raised during the previous run. Changes from v2: - Switched to kref for reference counting - Support for the events has been made optional (config option) - Use dynamically assigned id for multicast group instead of using static one - Verify if there are any net listeners prior to sending the msg - Make the interface more namespace-aware (handling mount dropped and showing the content of config file). As for the network namespaces - as before only the init net namespace is being supported. Changes from v1: - Improved synchronization: switched to RCU accompanied with ref counting mechanism - Limiting scope of supported event types along with default event codes - Slightly modified configuration (event types followed by arguments where required) - Updated documentation - Unified naming for netlink attributes - Updated netlink message format to include dev minor:major numbers despite the filesystem type - Switched to single cmd id for messages - Removed the per-config-entry ids --- [1] https://lkml.org/lkml/2015/4/15/46 [2] https://lkml.org/lkml/2015/4/27/244 --- Beata Michalska (4): fs: Add generic file system event notifications ext4: Add helper function to mark group as corrupted ext4: Add support for generic FS events shmem: Add support for generic FS events Documentation/filesystems/events.txt | 232 ++++++++++ fs/Kconfig | 2 + fs/Makefile | 1 + fs/events/Kconfig | 7 + fs/events/Makefile | 5 + fs/events/fs_event.c | 809 ++++++++++++++++++++++++++++++++++ fs/events/fs_event.h | 22 + fs/events/fs_event_netlink.c | 104 +++++ fs/ext4/balloc.c | 25 +- fs/ext4/ext4.h | 10 + fs/ext4/ialloc.c | 5 +- fs/ext4/inode.c | 2 +- fs/ext4/mballoc.c | 17 +- fs/ext4/resize.c | 1 + fs/ext4/super.c | 39 ++ fs/namespace.c | 1 + include/linux/fs.h | 6 +- include/linux/fs_event.h | 72 +++ include/uapi/linux/Kbuild | 1 + include/uapi/linux/fs_event.h | 58 +++ mm/shmem.c | 33 +- 21 files changed, 1419 insertions(+), 33 deletions(-) create mode 100644 Documentation/filesystems/events.txt create mode 100644 fs/events/Kconfig create mode 100644 fs/events/Makefile create mode 100644 fs/events/fs_event.c create mode 100644 fs/events/fs_event.h create mode 100644 fs/events/fs_event_netlink.c create mode 100644 include/linux/fs_event.h create mode 100644 include/uapi/linux/fs_event.h -- 1.7.9.5 -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>