1 files changed, 0 insertions, 80 deletions
diff --git a/patches/0003-fs-dcache-Use-__d_lookup_unhash-in-__d_add-move.patch b/patches/0003-fs-dcache-Use-__d_lookup_unhash-in-__d_add-move.patch
deleted file mode 100644
index f22cbe75f9be..000000000000
--- a/patches/0003-fs-dcache-Use-__d_lookup_unhash-in-__d_add-move.patch
+++ /dev/null
@@ -1,80 +0,0 @@
-From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
-Date: Sun, 12 Jun 2022 16:27:31 +0200
-Subject: [PATCH 3/4] fs/dcache: Use __d_lookup_unhash() in __d_add/move()
-
-__d_add() and __d_move() invoke __d_lookup_done() from within a preemption
-disabled region. This violates the PREEMPT_RT constraints as the wake up
-acquires wait_queue_head::lock which is a "sleeping" spinlock on RT.
-
-As a preparation for solving this completely, invoke __d_lookup_unhash()
-from __d_add/move() and handle the wakeup there.
-
-This allows to move the spin_lock/unlock(dentry::lock) pair into
-__d_lookup_done() which debloats the d_lookup_done() inline.
-
-No functional change. Moving the wake up out of the preemption disabled
-region on RT will be handled in a subsequent change.
-
-Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
-Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
-Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
-Link: https://lkml.kernel.org/r/20220613140712.77932-4-bigeasy@linutronix.de
----
- fs/dcache.c            |    6 ++++--
- include/linux/dcache.h |    7 ++-----
- 2 files changed, 6 insertions(+), 7 deletions(-)
-
---- a/fs/dcache.c
-+++ b/fs/dcache.c
-@@ -2737,7 +2737,9 @@ static wait_queue_head_t *__d_lookup_unh
- 
- void __d_lookup_done(struct dentry *dentry)
- {
-+	spin_lock(&dentry->d_lock);
- 	wake_up_all(__d_lookup_unhash(dentry));
-+	spin_unlock(&dentry->d_lock);
- }
- EXPORT_SYMBOL(__d_lookup_done);
- 
-@@ -2751,7 +2753,7 @@ static inline void __d_add(struct dentry
- 	if (unlikely(d_in_lookup(dentry))) {
- 		dir = dentry->d_parent->d_inode;
- 		n = start_dir_add(dir);
--		__d_lookup_done(dentry);
-+		wake_up_all(__d_lookup_unhash(dentry));
- 	}
- 	if (inode) {
- 		unsigned add_flags = d_flags_for_inode(inode);
-@@ -2940,7 +2942,7 @@ static void __d_move(struct dentry *dent
- 	if (unlikely(d_in_lookup(target))) {
- 		dir = target->d_parent->d_inode;
- 		n = start_dir_add(dir);
--		__d_lookup_done(target);
-+		wake_up_all(__d_lookup_unhash(target));
- 	}
- 
- 	write_seqcount_begin(&dentry->d_seq);
---- a/include/linux/dcache.h
-+++ b/include/linux/dcache.h
-@@ -349,7 +349,7 @@ static inline void dont_mount(struct den
- 	spin_unlock(&dentry->d_lock);
- }
- 
--extern void __d_lookup_done(struct dentry *);
-+extern void __d_lookup_done(struct dentry *dentry);
- 
- static inline int d_in_lookup(const struct dentry *dentry)
- {
-@@ -358,11 +358,8 @@ static inline int d_in_lookup(const stru
- 
- static inline void d_lookup_done(struct dentry *dentry)
- {
--	if (unlikely(d_in_lookup(dentry))) {
--		spin_lock(&dentry->d_lock);
-+	if (unlikely(d_in_lookup(dentry)))
- 		__d_lookup_done(dentry);
--		spin_unlock(&dentry->d_lock);
--	}
- }
- 
- extern void dput(struct dentry *);