Commit 8e556432 authored by Mathias Krause's avatar Mathias Krause Committed by Steven Rostedt (Google)
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eventfs: Use SRCU for freeing eventfs_inodes 

To mirror the SRCU lock held in eventfs_iterate() when iterating over
eventfs inodes, use call_srcu() to free them too.

This was accidentally(?) degraded to RCU in commit 43aa6f97
("eventfs: Get rid of dentry pointers without refcounts").

Cc: Ajay Kaher <ajay.kaher@broadcom.com>
Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/20240723210755.8970-1-minipli@grsecurity.net


Fixes: 43aa6f97 ("eventfs: Get rid of dentry pointers without refcounts")
Signed-off-by: default avatarMathias Krause <minipli@grsecurity.net>
Signed-off-by: default avatarSteven Rostedt (Google) <rostedt@goodmis.org>
parent 12c20c65

fs/tracefs/event_inode.c

+1 −1
Original line number Diff line number Diff line
@@ -112,7 +112,7 @@ static void release_ei(struct kref *ref) 
			entry->release(entry->name, ei->data);

	}



	call_rcu(&ei->rcu, free_ei_rcu);

	call_srcu(&eventfs_srcu, &ei->rcu, free_ei_rcu);

}



static inline void put_ei(struct eventfs_inode *ei)