If reboot within 5s of registering prkey, there will some zero
be added to /etc/multipath/prkeys. The reason is that cache is
not flushed to the disk.
Here fsync(fd) to fix it.
Signed-off-by: Lixiaokeng <lixiaokeng@xxxxxxxxxx>
Signed-off-by: Jianbing Jiao <jiangjianbiang@xxxxxxxxxx>
---
libmultipath/util.c | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/libmultipath/util.c b/libmultipath/util.c
index ea858409..f7e9c783 100644
--- a/libmultipath/util.c
+++ b/libmultipath/util.c
@@ -368,6 +368,11 @@ int safe_write(int fd, const void *buf, size_t count)
count -= r;
buf = (const char *)buf + r;
}
+
+ if (fsync(fd) < 0) {
+ condlog(0, "failed to fsync fd :%d", fd);
+ return -errno;
+ }
return 0;
}
--
--
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