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fsnotify: add super block object type

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Add the infrastructure to attach a mark to a super_block struct
and detach all attached marks when super block is destroyed.

This is going to be used by fanotify backend to setup super block
marks.

Signed-off-by: Amir Goldstein <amir73il@gmail.com>
Signed-off-by: Jan Kara <jack@suse.cz>
This commit is contained in:
Amir Goldstein 2018-09-01 10:41:11 +03:00 • committed by Jan Kara
parent 9bdda4e9cf
commit 1e6cb72399
7 changed files with 47 additions and 5 deletions
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5
include/linux/fs.h
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@ -1464,6 +1464,11 @@ struct super_block {
spinlock_t s_inode_wblist_lock;
struct list_head s_inodes_wb; /* writeback inodes */
#ifdef CONFIG_FSNOTIFY
__u32 s_fsnotify_mask;
struct fsnotify_mark_connector __rcu *s_fsnotify_marks;
#endif
} __randomize_layout;
/* Helper functions so that in most cases filesystems will