libglusterfs: fix statvfs in FreeBSD

FreeBSD interprets statvfs' f_bsize field in a different way than Linux.

This fix modifies the value returned by statvfs() on FreeBSD to match
the expected value by Gluster.

Change-Id: I930dab6e895671157238146d333e95874ea28a08
BUG: 1356076
Signed-off-by: Xavier Hernandez <xhernandez@datalab.es>
Reviewed-on: http://review.gluster.org/16361
Smoke: Gluster Build System <jenkins@build.gluster.org>
NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org>
Reviewed-by: Kaleb KEITHLEY <kkeithle@redhat.com>
CentOS-regression: Gluster Build System <jenkins@build.gluster.org>
Reviewed-by: Jeff Darcy <jdarcy@redhat.com>

2 files changed, 37 insertions, 1 deletions

diff --git a/libglusterfs/src/syscall.c b/libglusterfs/src/syscall.c
index 93838e285a4..7336e06891a 100644
--- a/libglusterfs/src/syscall.c
+++ b/libglusterfs/src/syscall.c
@@ -326,7 +326,40 @@ sys_lseek (int fd, off_t offset, int whence)
 int
 sys_statvfs (const char *path, struct statvfs *buf)
 {
-        return statvfs (path, buf);
+        int ret;
+
+        ret = statvfs (path, buf);
+#ifdef __FreeBSD__
+        /* FreeBSD doesn't return the expected vaule in buf->f_bsize. It
+         * contains the optimal I/O size instead of the file system block
+         * size. Gluster expects that this field contains the block size.
+         */
+        if (ret == 0) {
+                buf->f_bsize = buf->f_frsize;
+        }
+#endif /* __FreeBSD__ */
+
+        return ret;
+}
+
+
+int
+sys_fstatvfs (int fd, struct statvfs *buf)
+{
+        int ret;
+
+        ret = fstatvfs (fd, buf);
+#ifdef __FreeBSD__
+        /* FreeBSD doesn't return the expected vaule in buf->f_bsize. It
+         * contains the optimal I/O size instead of the file system block
+         * size. Gluster expects this field to contain the block size.
+         */
+        if (ret == 0) {
+                buf->f_bsize = buf->f_frsize;
+        }
+#endif /* __FreeBSD__ */
+
+        return ret;
 }
 
 
diff --git a/libglusterfs/src/syscall.h b/libglusterfs/src/syscall.h
index 6fee9bd5c5c..1a2658b94f1 100644
--- a/libglusterfs/src/syscall.h
+++ b/libglusterfs/src/syscall.h
@@ -147,6 +147,9 @@ int
 sys_statvfs (const char *path, struct statvfs *buf);
 
 int
+sys_fstatvfs (int fd, struct statvfs *buf);
+
+int
 sys_close (int fd);
 
 int