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[Qemu-devel] [PATCH] 9p: Be robust against paths without FS_IOC_GETVERSI
From: |
Gabriel de Perthuis |
Subject: |
[Qemu-devel] [PATCH] 9p: Be robust against paths without FS_IOC_GETVERSION |
Date: |
Thu, 09 May 2013 01:33:41 +0200 |
User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:17.0) Gecko/20130404 Thunderbird/17.0.5 |
The current implementation checked for supported filesystems at mount
time, but actual support depends on the path. Don't error out when
finding unversioned paths.
This fix allows booting a linux kernel with the same / filesystem as the
host; otherwise the boot fails when mounting devtmpfs.
Signed-off-by: Gabriel de Perthuis <address@hidden>
---
hw/9pfs/cofile.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/hw/9pfs/cofile.c b/hw/9pfs/cofile.c
index 2efebf3..194c130 100644
--- a/hw/9pfs/cofile.c
+++ b/hw/9pfs/cofile.c
@@ -36,10 +36,14 @@ int v9fs_co_st_gen(V9fsPDU *pdu, V9fsPath *path, mode_t
st_mode,
err = -errno;
}
});
v9fs_path_unlock(s);
}
+ /* The ioctl may not be supported depending on the path */
+ if (err == -ENOTTY) {
+ err = 0;
+ }
return err;
}
int v9fs_co_lstat(V9fsPDU *pdu, V9fsPath *path, struct stat *stbuf)
{
--
1.8.2.1.419.ga0b97c6
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