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authorMathias Krause <minipli@grsecurity.net>2024-07-23 23:07:53 +0200
committerSteven Rostedt (Google) <rostedt@goodmis.org>2024-08-08 01:28:48 +0200
commit8e556432477e97ad6179c61b61a32bf5f1af2355 (patch)
treea9c4891c63ab13ad11b0e7adba34bb7e9a4fdd57 /fs
parenteventfs: Don't return NULL in eventfs_create_dir() (diff)
downloadlinux-8e556432477e97ad6179c61b61a32bf5f1af2355.tar.xz
linux-8e556432477e97ad6179c61b61a32bf5f1af2355.zip
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 43aa6f97c2d0 ("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: 43aa6f97c2d0 ("eventfs: Get rid of dentry pointers without refcounts") Signed-off-by: Mathias Krause <minipli@grsecurity.net> Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Diffstat (limited to 'fs')
-rw-r--r--fs/tracefs/event_inode.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/tracefs/event_inode.c b/fs/tracefs/event_inode.c
index a9c28a1d5dc8..01e99e98457d 100644
--- a/fs/tracefs/event_inode.c
+++ b/fs/tracefs/event_inode.c
@@ -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)