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-rw-r--r--include/linux/fs.h6
-rw-r--r--include/linux/trace_events.h1
-rw-r--r--include/linux/user_events.h3
-rw-r--r--include/trace/events/writeback.h2
4 files changed, 4 insertions, 8 deletions
diff --git a/include/linux/fs.h b/include/linux/fs.h
index c363f8687c7e..6af251375438 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -2566,12 +2566,6 @@ static inline int deny_write_access(struct file *file)
struct inode *inode = file_inode(file);
return atomic_dec_unless_positive(&inode->i_writecount) ? 0 : -ETXTBSY;
}
-static inline int exclusive_deny_write_access(struct file *file)
-{
- int old = 0;
- struct inode *inode = file_inode(file);
- return atomic_try_cmpxchg(&inode->i_writecount, &old, -1) ? 0 : -ETXTBSY;
-}
static inline void put_write_access(struct inode * inode)
{
atomic_dec(&inode->i_writecount);
diff --git a/include/linux/trace_events.h b/include/linux/trace_events.h
index 0e373222a6df..7c4a0b72334e 100644
--- a/include/linux/trace_events.h
+++ b/include/linux/trace_events.h
@@ -806,6 +806,7 @@ enum {
FILTER_TRACE_FN,
FILTER_COMM,
FILTER_CPU,
+ FILTER_STACKTRACE,
};
extern int trace_event_raw_init(struct trace_event_call *call);
diff --git a/include/linux/user_events.h b/include/linux/user_events.h
index 2847f5a18a86..8afa8c3a0973 100644
--- a/include/linux/user_events.h
+++ b/include/linux/user_events.h
@@ -17,9 +17,10 @@
#ifdef CONFIG_USER_EVENTS
struct user_event_mm {
- struct list_head link;
+ struct list_head mms_link;
struct list_head enablers;
struct mm_struct *mm;
+ /* Used for one-shot lists, protected by event_mutex */
struct user_event_mm *next;
refcount_t refcnt;
refcount_t tasks;
diff --git a/include/trace/events/writeback.h b/include/trace/events/writeback.h
index 86b2a82da546..54e353c9f919 100644
--- a/include/trace/events/writeback.h
+++ b/include/trace/events/writeback.h
@@ -68,7 +68,7 @@ DECLARE_EVENT_CLASS(writeback_folio_template,
strscpy_pad(__entry->name,
bdi_dev_name(mapping ? inode_to_bdi(mapping->host) :
NULL), 32);
- __entry->ino = mapping ? mapping->host->i_ino : 0;
+ __entry->ino = (mapping && mapping->host) ? mapping->host->i_ino : 0;
__entry->index = folio->index;
),