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fsnotify: count all objects with attached connectors

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Rename s_fsnotify_inode_refs to s_fsnotify_connectors and count all
objects with attached connectors, not only inodes with attached
connectors.

This will be used to optimize fsnotify() calls on sb without any
type of marks.

Link: https://lore.kernel.org/r/20210810151220.285179-4-amir73il@gmail.com
Signed-off-by: Amir Goldstein <amir73il@gmail.com>
Reviewed-by: Matthew Bobrowski <repnop@google.com>
Signed-off-by: Jan Kara <jack@suse.cz>
This commit is contained in:
Amir Goldstein
2021-08-10 18:12:19 +03:00
committed by Jan Kara
parent 11fa333b58
commit ec44610fe2
4 changed files with 44 additions and 8 deletions
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7
include/linux/fs.h
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@@ -1507,8 +1507,11 @@ struct super_block {
/* Number of inodes with nlink == 0 but still referenced */
atomic_long_t s_remove_count;
/* Pending fsnotify inode refs */
atomic_long_t s_fsnotify_inode_refs;
/*
* Number of inode/mount/sb objects that are being watched, note that
* inodes objects are currently double-accounted.
*/
atomic_long_t s_fsnotify_connectors;
/* Being remounted read-only */
int s_readonly_remount;