Messages in this thread | | | From | Eric Paris <> | Subject | [PATCH -v3 0/8] file notification: fsnotify a unified file notification backend | Date | Tue, 25 Nov 2008 12:20:51 -0500 |
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This patch series implements fsnotify a filesystem notification backend which should be the basis for dnotify, inotify, and eventually fanotify.
This series only reimplements dnotify using the new fsnotify backend. If accepted I will do the work to port inotify as well. Currently struct inode goes from:
#ifdef CONFIG_DNOTIFY unsigned long i_dnotify_mask; /* Directory notify events */ struct dnotify_struct *i_dnotify; /* for directory notifications */ #endif
to: #ifdef CONFIG_FSNOTIFY unsigned long i_fsnotify_mask; /* all events this inode cares about */ struct list_head i_fsnotify_mark_entries; /* fsnotify mark entries */ spinlock_t i_fsnotify_lock; /* protect the entries list */ #endif
so the inode still grows, but the inotify fields will be dropped as well resulting in a smaller struct inode. These are all the fields fanotify will want as well.
rwlocks have been completely dropped in favor of even smaller critical section spinlocks. i_lock is no longer used to protect dnotify information and instead the more specific i_fsnotify_lock is used. ---
Eric Paris (8): dnotify: reimplement dnotify using fsnotify fsnotify: add in inode fsnotify markings fsnotify: add group priorities fsnotify: unified filesystem notification backend fsnotify: use the new open-exec hook for inotify and dnotify fsnotify: sys_execve and sys_uselib do not call into fsnotify fsnotify: pass a file instead of an inode to open, read, and write filesystem notification: create fs/notify to contain all fs notification
fs/Kconfig | 39 -- fs/Makefile | 5 fs/compat.c | 5 fs/dnotify.c | 194 -------- fs/exec.c | 5 fs/inode.c | 7 fs/inotify.c | 911 -------------------------------------- fs/inotify_user.c | 778 -------------------------------- fs/nfsd/vfs.c | 4 fs/notify/Kconfig | 14 + fs/notify/Makefile | 4 fs/notify/dnotify/Kconfig | 11 fs/notify/dnotify/Makefile | 1 fs/notify/dnotify/dnotify.c | 400 +++++++++++++++++ fs/notify/fsnotify.c | 104 ++++ fs/notify/fsnotify.h | 99 ++++ fs/notify/group.c | 150 ++++++ fs/notify/inode_mark.c | 226 +++++++++ fs/notify/inotify/Kconfig | 27 + fs/notify/inotify/Makefile | 2 fs/notify/inotify/inotify.c | 911 ++++++++++++++++++++++++++++++++++++++ fs/notify/inotify/inotify_user.c | 778 ++++++++++++++++++++++++++++++++ fs/notify/notification.c | 188 ++++++++ fs/open.c | 2 fs/read_write.c | 8 include/linux/dnotify.h | 21 - include/linux/fs.h | 7 include/linux/fsnotify.h | 73 ++- include/linux/fsnotify_backend.h | 103 ++++ 29 files changed, 3100 insertions(+), 1977 deletions(-) delete mode 100644 fs/dnotify.c delete mode 100644 fs/inotify.c delete mode 100644 fs/inotify_user.c create mode 100644 fs/notify/Kconfig create mode 100644 fs/notify/Makefile create mode 100644 fs/notify/dnotify/Kconfig create mode 100644 fs/notify/dnotify/Makefile create mode 100644 fs/notify/dnotify/dnotify.c create mode 100644 fs/notify/fsnotify.c create mode 100644 fs/notify/fsnotify.h create mode 100644 fs/notify/group.c create mode 100644 fs/notify/inode_mark.c create mode 100644 fs/notify/inotify/Kconfig create mode 100644 fs/notify/inotify/Makefile create mode 100644 fs/notify/inotify/inotify.c create mode 100644 fs/notify/inotify/inotify_user.c create mode 100644 fs/notify/notification.c create mode 100644 include/linux/fsnotify_backend.h
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