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fsnotify: make allow_dups a property of the group

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Instead of passing the allow_dups argument to fsnotify_add_mark()
as an argument, define the group flag FSNOTIFY_GROUP_DUPS to express
the allow_dups behavior and set this behavior at group creation time
for all calls of fsnotify_add_mark().

Rename the allow_dups argument to generic add_flags argument for future
use.

Link: https://lore.kernel.org/r/20220422120327.3459282-6-amir73il@gmail.com
Suggested-by: Jan Kara <jack@suse.cz>
Signed-off-by: Amir Goldstein <amir73il@gmail.com>
Signed-off-by: Jan Kara <jack@suse.cz>
This commit is contained in:
Amir Goldstein 2022-04-22 15:03:16 +03:00 • committed by Jan Kara
parent 867a448d58
commit f3010343d9
3 changed files with 15 additions and 14 deletions
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13
include/linux/fsnotify_backend.h
View file

@ -211,6 +211,7 @@ struct fsnotify_group {
bool shutdown; /* group is being shut down, don't queue more events */
#define FSNOTIFY_GROUP_USER 0x01 /* user allocated group */
#define FSNOTIFY_GROUP_DUPS 0x02 /* allow multiple marks per object */
int flags;
/* stores all fastpath marks assoc with this group so they can be cleaned on unregister */
@ -641,26 +642,26 @@ extern int fsnotify_get_conn_fsid(const struct fsnotify_mark_connector *conn,
/* attach the mark to the object */
extern int fsnotify_add_mark(struct fsnotify_mark *mark,
fsnotify_connp_t *connp, unsigned int obj_type,
int allow_dups, __kernel_fsid_t *fsid);
int add_flags, __kernel_fsid_t *fsid);
extern int fsnotify_add_mark_locked(struct fsnotify_mark *mark,
fsnotify_connp_t *connp,
unsigned int obj_type, int allow_dups,
unsigned int obj_type, int add_flags,
__kernel_fsid_t *fsid);
/* attach the mark to the inode */
static inline int fsnotify_add_inode_mark(struct fsnotify_mark *mark,
struct inode *inode,
int allow_dups)
int add_flags)
{
return fsnotify_add_mark(mark, &inode->i_fsnotify_marks,
FSNOTIFY_OBJ_TYPE_INODE, allow_dups, NULL);
FSNOTIFY_OBJ_TYPE_INODE, add_flags, NULL);
}
static inline int fsnotify_add_inode_mark_locked(struct fsnotify_mark *mark,
struct inode *inode,
int allow_dups)
int add_flags)
{
return fsnotify_add_mark_locked(mark, &inode->i_fsnotify_marks,
FSNOTIFY_OBJ_TYPE_INODE, allow_dups,
FSNOTIFY_OBJ_TYPE_INODE, add_flags,
NULL);
}