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[Qemu-devel] [PATCH 2/5] virtiofsd: take lo->mutex around lo_add_dirp_ma
From: |
Stefan Hajnoczi |
Subject: |
[Qemu-devel] [PATCH 2/5] virtiofsd: take lo->mutex around lo_add_dirp_mapping() |
Date: |
Wed, 31 Jul 2019 17:10:03 +0100 |
The lo_add_dirp_mapping() function assumes lo->mutex is held, so we
should acquire it.
Signed-off-by: Stefan Hajnoczi <address@hidden>
---
contrib/virtiofsd/passthrough_ll.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/contrib/virtiofsd/passthrough_ll.c
b/contrib/virtiofsd/passthrough_ll.c
index 417a104218..e1d729d26b 100644
--- a/contrib/virtiofsd/passthrough_ll.c
+++ b/contrib/virtiofsd/passthrough_ll.c
@@ -1357,7 +1357,9 @@ static void lo_opendir(fuse_req_t req, fuse_ino_t ino,
struct fuse_file_info *fi
g_atomic_int_set(&d->refcount, 1); /* paired with lo_releasedir() */
+ pthread_mutex_lock(&lo->mutex);
fh = lo_add_dirp_mapping(req, d);
+ pthread_mutex_unlock(&lo->mutex);
if (fh == -1)
goto out_err;
--
2.21.0