Messages in this thread Patch in this message | | | Subject | [RESEND][RFC][PATCH] fsnotify: track all events on filesystem | Date | Tue, 13 Jul 2010 17:36:26 +0200 (CEST) | From | (Jakob Goldbach) |
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(Resending, this time with fsnotify maintainer cc'ed)
This patch allows notification groups to get events on the entire filesystem, not just on registered inodes.
I want to use it for a notification group that tracks all changes to the filesystem in order to do faster backups.
Is this a good or bad idea?
/Jakob
diff --git a/fs/notify/fsnotify.c b/fs/notify/fsnotify.c index fcc2f06..aa9e204 100644 --- a/fs/notify/fsnotify.c +++ b/fs/notify/fsnotify.c @@ -147,7 +147,9 @@ void fsnotify(struct inode *to_tell, __u32 mask, void *data, int data_is, const if (!(test_mask & fsnotify_mask)) return; - if (!(test_mask & to_tell->i_fsnotify_mask)) + if (! + (test_mask & + (to_tell->i_fsnotify_mask | to_tell->i_sb->s_fsnotify_mask))) return; /* * SRCU!! the groups list is very very much read only and the path is diff --git a/include/linux/fs.h b/include/linux/fs.h index 68ca1b0..102acf5 100644 --- a/include/linux/fs.h +++ b/include/linux/fs.h @@ -1382,6 +1382,9 @@ struct super_block { * generic_show_options() */ char *s_options; +#ifdef CONFIG_FSNOTIFY + __u32 s_fsnotify_mask; +#endif }; extern struct timespec current_fs_time(struct super_block *sb);
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