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[libvirt] [PATCH 1/4] virfile: Split virFileGetFSFtype



Split out the portion of virFileGetFSFtype that makes the statfs call
in order to return the "f_type" field

Signed-off-by: John Ferlan <jferlan redhat com>
---
 src/util/virfile.c | 34 ++++++++++++++++++++++++----------
 1 file changed, 24 insertions(+), 10 deletions(-)

diff --git a/src/util/virfile.c b/src/util/virfile.c
index 9863fd0..7612007 100644
--- a/src/util/virfile.c
+++ b/src/util/virfile.c
@@ -2841,14 +2841,16 @@ int virFilePrintf(FILE *fp, const char *msg, ...)
 #  define HUGETLBFS_MAGIC 0x958458f6
 # endif
 
-int
-virFileIsSharedFSType(const char *path,
-                      int fstypes)
+static int
+virFileGetFSFtype(const char *path,
+                  long long int *ret_ftype)
 {
     char *dirpath, *p;
     struct statfs sb;
     int statfs_ret;
 
+    *ret_ftype = 0;
+
     if (VIR_STRDUP(dirpath, path) < 0)
         return -1;
 
@@ -2886,28 +2888,40 @@ virFileIsSharedFSType(const char *path,
                              path);
         return -1;
     }
+    *ret_ftype = sb.f_type;
+    return 0;
+}
+
+int
+virFileIsSharedFSType(const char *path,
+                      int fstypes)
+{
+    long long int f_type;
+
+    if (virFileGetFSFtype(path, &f_type) < 0)
+        return -1;
 
     VIR_DEBUG("Check if path %s with FS magic %lld is shared",
-              path, (long long int)sb.f_type);
+              path, f_type);
 
     if ((fstypes & VIR_FILE_SHFS_NFS) &&
-        (sb.f_type == NFS_SUPER_MAGIC))
+        (f_type == NFS_SUPER_MAGIC))
         return 1;
 
     if ((fstypes & VIR_FILE_SHFS_GFS2) &&
-        (sb.f_type == GFS2_MAGIC))
+        (f_type == GFS2_MAGIC))
         return 1;
     if ((fstypes & VIR_FILE_SHFS_OCFS) &&
-        (sb.f_type == OCFS2_SUPER_MAGIC))
+        (f_type == OCFS2_SUPER_MAGIC))
         return 1;
     if ((fstypes & VIR_FILE_SHFS_AFS) &&
-        (sb.f_type == AFS_FS_MAGIC))
+        (f_type == AFS_FS_MAGIC))
         return 1;
     if ((fstypes & VIR_FILE_SHFS_SMB) &&
-        (sb.f_type == SMB_SUPER_MAGIC))
+        (f_type == SMB_SUPER_MAGIC))
         return 1;
     if ((fstypes & VIR_FILE_SHFS_CIFS) &&
-        (sb.f_type == CIFS_SUPER_MAGIC))
+        (f_type == CIFS_SUPER_MAGIC))
         return 1;
 
     return 0;
-- 
1.9.3


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