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fsnotify: pass dir argument to handle_event() callback

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The 'inode' argument to handle_event(), sometimes referred to as
'to_tell' is somewhat obsolete.
It is a remnant from the times when a group could only have an inode mark
associated with an event.

We now pass an iter_info array to the callback, with all marks associated
with an event.

Most backends ignore this argument, with two exceptions:
1. dnotify uses it for sanity check that event is on directory
2. fanotify uses it to report fid of directory on directory entry
   modification events

Remove the 'inode' argument and add a 'dir' argument.
The callback function signature is deliberately changed, because
the meaning of the argument has changed and the arguments have
been documented.

The 'dir' argument is set to when 'file_name' is specified and it is
referring to the directory that the 'file_name' entry belongs to.

Signed-off-by: Amir Goldstein <amir73il@gmail.com>
Signed-off-by: Jan Kara <jack@suse.cz>
This commit is contained in:
Amir Goldstein
2020-06-07 12:10:40 +03:00
committed by Jan Kara
parent 9c61f3b560
commit b54cecf5e2
11 changed files with 62 additions and 56 deletions
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6
fs/nfsd/filecache.c
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@@ -598,9 +598,9 @@ static struct notifier_block nfsd_file_lease_notifier = {
};
static int
nfsd_file_fsnotify_handle_event(struct fsnotify_group *group,
struct inode *to_tell,
u32 mask, const void *data, int data_type,
nfsd_file_fsnotify_handle_event(struct fsnotify_group *group, u32 mask,
const void *data, int data_type,
struct inode *dir,
const struct qstr *file_name, u32 cookie,
struct fsnotify_iter_info *iter_info)
{