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fanotify: support secondary dir fh and name in fanotify_info

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[ Upstream commit 3cf984e950c1c3f41d407ed31db33beb996be132 ]

Allow storing a secondary dir fh and name tupple in fanotify_info.
This will be used to store the new parent and name information in
FAN_RENAME event.

Link: https://lore.kernel.org/r/20211129201537.1932819-8-amir73il@gmail.com
Signed-off-by: Amir Goldstein <amir73il@gmail.com>
Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Amir Goldstein
2021-11-29 22:15:33 +02:00
committed by Greg Kroah-Hartman
parent 967ae13720
commit f59e978cfa
3 changed files with 88 additions and 14 deletions
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3
fs/notify/fanotify/fanotify_user.c
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@@ -327,11 +327,10 @@ static int process_access_response(struct fsnotify_group *group,
static size_t copy_error_info_to_user(struct fanotify_event *event,
char __user *buf, int count)
{
struct fanotify_event_info_error info;
struct fanotify_event_info_error info = { };
struct fanotify_error_event *fee = FANOTIFY_EE(event);
info.hdr.info_type = FAN_EVENT_INFO_TYPE_ERROR;
info.hdr.pad = 0;
info.hdr.len = FANOTIFY_ERROR_INFO_LEN;
if (WARN_ON(count < info.hdr.len))