eventfs: Fix bitwise fields for "is_events"

A flag was needed to denote which eventfs_inode was the "events"
directory, so a bit was taken from the "nr_entries" field, as there's not
that many entries, and 2^30 is plenty. But the bit number for nr_entries
was not updated to reflect the bit taken from it, which would add an
unnecessary integer to the structure.

Link: https://lore.kernel.org/linux-trace-kernel/20240102151832.7ca87275@gandalf.local.home
Cc: stable@vger.kernel.org
Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Fixes: 7e8358edf503e ("eventfs: Fix file and directory uid and gid ownership")
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>

diff --git a/fs/tracefs/internal.h b/fs/tracefs/internal.h
index 899e447..42bdeb4 100644 (file)
--- a/fs/tracefs/internal.h
+++ b/fs/tracefs/internal.h
@@ -63,7 +63,7 @@ struct eventfs_inode {
        };
        unsigned int                    is_freed:1;
        unsigned int                    is_events:1;
-       unsigned int                    nr_entries:31;
+       unsigned int                    nr_entries:30;
 };
 
 static inline struct tracefs_inode *get_tracefs(const struct inode *inode)