diff options
Diffstat (limited to 'debian/patches-rt/fs-jbd-replace-bh_state-lock.patch')
-rw-r--r-- | debian/patches-rt/fs-jbd-replace-bh_state-lock.patch | 97 |
1 files changed, 0 insertions, 97 deletions
diff --git a/debian/patches-rt/fs-jbd-replace-bh_state-lock.patch b/debian/patches-rt/fs-jbd-replace-bh_state-lock.patch deleted file mode 100644 index 117b3d7ca..000000000 --- a/debian/patches-rt/fs-jbd-replace-bh_state-lock.patch +++ /dev/null @@ -1,97 +0,0 @@ -From: Thomas Gleixner <tglx@linutronix.de> -Date: Fri, 18 Mar 2011 10:11:25 +0100 -Subject: fs: jbd/jbd2: Make state lock and journal head lock rt safe -Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/5.2/older/patches-5.2.17-rt9.tar.xz - -bit_spin_locks break under RT. - -Based on a previous patch from Steven Rostedt <rostedt@goodmis.org> -Signed-off-by: Thomas Gleixner <tglx@linutronix.de> --- - include/linux/buffer_head.h | 8 ++++++++ - include/linux/jbd2.h | 24 ++++++++++++++++++++++++ - 2 files changed, 32 insertions(+) - ---- a/include/linux/buffer_head.h -+++ b/include/linux/buffer_head.h -@@ -78,6 +78,10 @@ struct buffer_head { - atomic_t b_count; /* users using this buffer_head */ - #ifdef CONFIG_PREEMPT_RT_BASE - spinlock_t b_uptodate_lock; -+#if IS_ENABLED(CONFIG_JBD2) -+ spinlock_t b_state_lock; -+ spinlock_t b_journal_head_lock; -+#endif - #endif - }; - -@@ -109,6 +113,10 @@ static inline void buffer_head_init_lock - { - #ifdef CONFIG_PREEMPT_RT_BASE - spin_lock_init(&bh->b_uptodate_lock); -+#if IS_ENABLED(CONFIG_JBD2) -+ spin_lock_init(&bh->b_state_lock); -+ spin_lock_init(&bh->b_journal_head_lock); -+#endif - #endif - } - ---- a/include/linux/jbd2.h -+++ b/include/linux/jbd2.h -@@ -344,32 +344,56 @@ static inline struct journal_head *bh2jh - - static inline void jbd_lock_bh_state(struct buffer_head *bh) - { -+#ifndef CONFIG_PREEMPT_RT_BASE - bit_spin_lock(BH_State, &bh->b_state); -+#else -+ spin_lock(&bh->b_state_lock); -+#endif - } - - static inline int jbd_trylock_bh_state(struct buffer_head *bh) - { -+#ifndef CONFIG_PREEMPT_RT_BASE - return bit_spin_trylock(BH_State, &bh->b_state); -+#else -+ return spin_trylock(&bh->b_state_lock); -+#endif - } - - static inline int jbd_is_locked_bh_state(struct buffer_head *bh) - { -+#ifndef CONFIG_PREEMPT_RT_BASE - return bit_spin_is_locked(BH_State, &bh->b_state); -+#else -+ return spin_is_locked(&bh->b_state_lock); -+#endif - } - - static inline void jbd_unlock_bh_state(struct buffer_head *bh) - { -+#ifndef CONFIG_PREEMPT_RT_BASE - bit_spin_unlock(BH_State, &bh->b_state); -+#else -+ spin_unlock(&bh->b_state_lock); -+#endif - } - - static inline void jbd_lock_bh_journal_head(struct buffer_head *bh) - { -+#ifndef CONFIG_PREEMPT_RT_BASE - bit_spin_lock(BH_JournalHead, &bh->b_state); -+#else -+ spin_lock(&bh->b_journal_head_lock); -+#endif - } - - static inline void jbd_unlock_bh_journal_head(struct buffer_head *bh) - { -+#ifndef CONFIG_PREEMPT_RT_BASE - bit_spin_unlock(BH_JournalHead, &bh->b_state); -+#else -+ spin_unlock(&bh->b_journal_head_lock); -+#endif - } - - #define J_ASSERT(assert) BUG_ON(!(assert)) |