Hi, This is the 8th version of this patch series. We are getting close! Thank you Amir and Jan for your repeated assistance in getting this in shape. This version applies all your feedback from previous version, in particular, it has a resizeable mempool, such that we don't waste to much space if not needed. This was tested with LTP for regressions and also using the sample code on the last patch, with a corrupted image. I wrote a new ltp test for this feature which is being reviewed and is available at: https://gitlab.collabora.com/krisman/ltp -b fan-fs-error In addition, I wrote a man-page that can be pulled from: https://gitlab.collabora.com/krisman/man-pages.git -b fan-fs-error And is being reviewed at the list. I also pushed this full series to: https://gitlab.collabora.com/krisman/linux -b fanotify-notifications-v8 Thank you Cc: Darrick J. Wong <djwong@xxxxxxxxxx> Cc: Theodore Ts'o <tytso@xxxxxxx> Cc: Dave Chinner <david@xxxxxxxxxxxxx> Cc: jack@xxxxxxxx To: amir73il@xxxxxxxxx Cc: dhowells@xxxxxxxxxx Cc: khazhy@xxxxxxxxxx Cc: linux-fsdevel@xxxxxxxxxxxxxxx Cc: linux-ext4@xxxxxxxxxxxxxxx Cc: linux-api@xxxxxxxxxxxxxxx Cc: linux-api@xxxxxxxxxxxxxxx Amir Goldstein (3): fsnotify: pass data_type to fsnotify_name() fsnotify: pass dentry instead of inode data fsnotify: clarify contract for create event hooks Gabriel Krisman Bertazi (29): fsnotify: Don't insert unmergeable events in hashtable fanotify: Fold event size calculation to its own function fanotify: Split fsid check from other fid mode checks inotify: Don't force FS_IN_IGNORED fsnotify: Add helper to detect overflow_event fsnotify: Add wrapper around fsnotify_add_event fsnotify: Retrieve super block from the data field fsnotify: Protect fsnotify_handle_inode_event from no-inode events fsnotify: Pass group argument to free_event fanotify: Support null inode event in fanotify_dfid_inode fanotify: Allow file handle encoding for unhashed events fanotify: Encode empty file handle when no inode is provided fanotify: Require fid_mode for any non-fd event fsnotify: Support FS_ERROR event type fanotify: Reserve UAPI bits for FAN_FS_ERROR fanotify: Pre-allocate pool of error events fanotify: Dynamically resize the FAN_FS_ERROR pool fanotify: Support enqueueing of error events fanotify: Support merging of error events fanotify: Wrap object_fh inline space in a creator macro fanotify: Add helpers to decide whether to report FID/DFID fanotify: Report fid entry even for zero-length file_handle fanotify: WARN_ON against too large file handles fanotify: Report fid info for file related file system errors fanotify: Emit generic error info for error event fanotify: Allow users to request FAN_FS_ERROR events ext4: Send notifications on error samples: Add fs error monitoring example docs: Document the FAN_FS_ERROR event .../admin-guide/filesystem-monitoring.rst | 76 ++++++++ Documentation/admin-guide/index.rst | 1 + fs/ext4/super.c | 8 + fs/notify/fanotify/fanotify.c | 116 +++++++++++- fs/notify/fanotify/fanotify.h | 60 +++++- fs/notify/fanotify/fanotify_user.c | 172 ++++++++++++++---- fs/notify/fsnotify.c | 10 +- fs/notify/group.c | 2 +- fs/notify/inotify/inotify_fsnotify.c | 5 +- fs/notify/inotify/inotify_user.c | 6 +- fs/notify/notification.c | 14 +- include/linux/fanotify.h | 9 +- include/linux/fsnotify.h | 58 ++++-- include/linux/fsnotify_backend.h | 96 +++++++++- include/uapi/linux/fanotify.h | 8 + kernel/audit_fsnotify.c | 3 +- kernel/audit_watch.c | 3 +- samples/Kconfig | 9 + samples/Makefile | 1 + samples/fanotify/Makefile | 5 + samples/fanotify/fs-monitor.c | 142 +++++++++++++++ 21 files changed, 705 insertions(+), 99 deletions(-) create mode 100644 Documentation/admin-guide/filesystem-monitoring.rst create mode 100644 samples/fanotify/Makefile create mode 100644 samples/fanotify/fs-monitor.c -- 2.33.0
