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From: Jan Kara <jack@suse.cz>
To: <linux-fsdevel@vger.kernel.org>
Cc: Miklos Szeredi <miklos@szeredi.hu>,
	Amir Goldstein <amir73il@gmail.com>,
	Paul Moore <paul@paul-moore.com>, Jan Kara <jack@suse.cz>
Subject: [PATCH 11/35] fsnotify: Move fsnotify_destroy_marks()
Date: Mon,  3 Apr 2017 17:34:00 +0200	[thread overview]
Message-ID: <20170403153424.24945-12-jack@suse.cz> (raw)
In-Reply-To: <20170403153424.24945-1-jack@suse.cz>

Move fsnotify_destroy_marks() to be later in the fs/notify/mark.c. It
will need some functions that are declared after its current
declaration. No functional change.

Reviewed-by: Miklos Szeredi <mszeredi@redhat.com>
Reviewed-by: Amir Goldstein <amir73il@gmail.com>
Signed-off-by: Jan Kara <jack@suse.cz>
---
 fs/notify/mark.c | 72 ++++++++++++++++++++++++++++----------------------------
 1 file changed, 36 insertions(+), 36 deletions(-)

diff --git a/fs/notify/mark.c b/fs/notify/mark.c
index e8c2f829ce65..b3f83ed6e8be 100644
--- a/fs/notify/mark.c
+++ b/fs/notify/mark.c
@@ -224,42 +224,6 @@ void fsnotify_destroy_mark(struct fsnotify_mark *mark,
 	fsnotify_free_mark(mark);
 }
 
-void fsnotify_destroy_marks(struct fsnotify_mark_connector *conn,
-			    spinlock_t *lock)
-{
-	struct fsnotify_mark *mark;
-
-	if (!conn)
-		return;
-
-	while (1) {
-		/*
-		 * We have to be careful since we can race with e.g.
-		 * fsnotify_clear_marks_by_group() and once we drop 'lock',
-		 * mark can get removed from the obj_list and destroyed. But
-		 * we are holding mark reference so mark cannot be freed and
-		 * calling fsnotify_destroy_mark() more than once is fine.
-		 */
-		spin_lock(lock);
-		if (hlist_empty(&conn->list)) {
-			spin_unlock(lock);
-			break;
-		}
-		mark = hlist_entry(conn->list.first, struct fsnotify_mark,
-				   obj_list);
-		/*
-		 * We don't update i_fsnotify_mask / mnt_fsnotify_mask here
-		 * since inode / mount is going away anyway. So just remove
-		 * mark from the list.
-		 */
-		hlist_del_init_rcu(&mark->obj_list);
-		fsnotify_get_mark(mark);
-		spin_unlock(lock);
-		fsnotify_destroy_mark(mark, mark->group);
-		fsnotify_put_mark(mark);
-	}
-}
-
 void fsnotify_connector_free(struct fsnotify_mark_connector **connp)
 {
 	if (*connp) {
@@ -580,6 +544,42 @@ void fsnotify_detach_group_marks(struct fsnotify_group *group)
 	}
 }
 
+void fsnotify_destroy_marks(struct fsnotify_mark_connector *conn,
+			    spinlock_t *lock)
+{
+	struct fsnotify_mark *mark;
+
+	if (!conn)
+		return;
+
+	while (1) {
+		/*
+		 * We have to be careful since we can race with e.g.
+		 * fsnotify_clear_marks_by_group() and once we drop 'lock',
+		 * mark can get removed from the obj_list and destroyed. But
+		 * we are holding mark reference so mark cannot be freed and
+		 * calling fsnotify_destroy_mark() more than once is fine.
+		 */
+		spin_lock(lock);
+		if (hlist_empty(&conn->list)) {
+			spin_unlock(lock);
+			break;
+		}
+		mark = hlist_entry(conn->list.first, struct fsnotify_mark,
+				   obj_list);
+		/*
+		 * We don't update i_fsnotify_mask / mnt_fsnotify_mask here
+		 * since inode / mount is going away anyway. So just remove
+		 * mark from the list.
+		 */
+		hlist_del_init_rcu(&mark->obj_list);
+		fsnotify_get_mark(mark);
+		spin_unlock(lock);
+		fsnotify_destroy_mark(mark, mark->group);
+		fsnotify_put_mark(mark);
+	}
+}
+
 /*
  * Nothing fancy, just initialize lists and locks and counters.
  */
-- 
2.10.2

  parent reply	other threads:[~2017-04-03 15:34 UTC|newest]

Thread overview: 43+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-04-03 15:33 [PATCH 0/35 v7] fsnotify: Avoid SRCU stalls with fanotify permission events Jan Kara
2017-04-03 15:33 ` [PATCH 01/35] fsnotify: Remove unnecessary tests when showing fdinfo Jan Kara
2017-04-03 15:33 ` [PATCH 02/35] inotify: Remove inode pointers from debug messages Jan Kara
2017-04-03 15:33 ` [PATCH 03/35] fanotify: Move recalculation of inode / vfsmount mask under mark_mutex Jan Kara
2017-04-03 15:33 ` [PATCH 04/35] audit: Abstract hash key handling Jan Kara
2017-04-04 20:38   ` Paul Moore
2017-04-03 15:33 ` [PATCH 05/35] audit_tree: Use mark flags to check whether mark is alive Jan Kara
2017-04-04 20:47   ` Paul Moore
2017-04-05  7:38     ` Jan Kara
2017-04-06 11:51       ` Paul Moore
2017-04-10 15:31         ` Jan Kara
2017-04-10 15:43           ` Jan Kara
2017-04-11 20:27             ` Paul Moore
2017-04-03 15:33 ` [PATCH 06/35] fsnotify: Update comments Jan Kara
2017-04-03 15:33 ` [PATCH 07/35] fsnotify: Move mark list head from object into dedicated structure Jan Kara
2017-04-03 15:33 ` [PATCH 08/35] fsnotify: Move object pointer to fsnotify_mark_connector Jan Kara
2017-04-03 15:33 ` [PATCH 09/35] fsnotify: Make fsnotify_mark_connector hold inode reference Jan Kara
2017-04-03 15:33 ` [PATCH 10/35] fsnotify: Remove indirection from mark list addition Jan Kara
2017-04-03 15:34 ` Jan Kara [this message]
2017-04-03 15:34 ` [PATCH 12/35] fsnotify: Move locking into fsnotify_recalc_mask() Jan Kara
2017-04-03 15:34 ` [PATCH 13/35] fsnotify: Move locking into fsnotify_find_mark() Jan Kara
2017-04-03 15:34 ` [PATCH 14/35] fsnotify: Determine lock in fsnotify_destroy_marks() Jan Kara
2017-04-03 15:34 ` [PATCH 15/35] fsnotify: Remove indirection from fsnotify_detach_mark() Jan Kara
2017-04-03 15:34 ` [PATCH 16/35] fsnotify: Avoid double locking in fsnotify_detach_from_object() Jan Kara
2017-04-03 15:34 ` [PATCH 17/35] fsnotify: Remove useless list deletion and comment Jan Kara
2017-04-03 15:34 ` [PATCH 18/35] fsnotify: Lock object list with connector lock Jan Kara
2017-04-03 15:34 ` [PATCH 19/35] fsnotify: Free fsnotify_mark_connector when there is no mark attached Jan Kara
2017-04-03 15:34 ` [PATCH 20/35] inotify: Do not drop mark reference under idr_lock Jan Kara
2017-04-03 15:34 ` [PATCH 21/35] fsnotify: Move queueing of mark for destruction into fsnotify_put_mark() Jan Kara
2017-04-03 15:34 ` [PATCH 22/35] fsnotify: Detach mark from object list when last reference is dropped Jan Kara
2017-04-03 15:34 ` [PATCH 23/35] fsnotify: Remove special handling of mark destruction on group shutdown Jan Kara
2017-04-03 15:34 ` [PATCH 24/35] fsnotify: Provide framework for dropping SRCU lock in ->handle_event Jan Kara
2017-04-03 15:34 ` [PATCH 25/35] fsnotify: Pass fsnotify_iter_info into handle_event handler Jan Kara
2017-04-03 15:34 ` [PATCH 26/35] fanotify: Release SRCU lock when waiting for userspace response Jan Kara
2017-04-03 15:34 ` [PATCH 27/35] fsnotify: Remove fsnotify_set_mark_{,ignored_}mask_locked() Jan Kara
2017-04-03 15:34 ` [PATCH 28/35] fsnotify: Remove fsnotify_recalc_{inode|vfsmount}_mask() Jan Kara
2017-04-03 15:34 ` [PATCH 29/35] fsnotify: Inline fsnotify_clear_{inode|vfsmount}_mark_group() Jan Kara
2017-04-03 15:34 ` [PATCH 30/35] fsnotify: Rename fsnotify_clear_marks_by_group_flags() Jan Kara
2017-04-03 15:34 ` [PATCH 31/35] fsnotify: Remove fsnotify_detach_group_marks() Jan Kara
2017-04-03 15:34 ` [PATCH 32/35] fsnotify: Remove fsnotify_find_{inode|vfsmount}_mark() Jan Kara
2017-04-03 15:34 ` [PATCH 33/35] fsnotify: Drop inode_mark.c Jan Kara
2017-04-03 15:34 ` [PATCH 34/35] fsnotify: Add group pointer in fsnotify_init_mark() Jan Kara
2017-04-03 15:34 ` [PATCH 35/35] fsnotify: Move ->free_mark callback to fsnotify_ops Jan Kara

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