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authorChristoph Hellwig <hch@lst.de>2017-11-20 17:56:52 +0100
committerDarrick J. Wong <darrick.wong@oracle.com>2017-11-21 10:44:53 +0100
commit274e0a1f4777b9362fc03a34e86358cc36003e48 (patch)
treec1cde1a02a916b71b412a0a7543999771efdc92f /fs/xfs/xfs_linux.h
parentxfs: fix memory leak in xfs_iext_free_last_leaf (diff)
downloadlinux-274e0a1f4777b9362fc03a34e86358cc36003e48.tar.xz
linux-274e0a1f4777b9362fc03a34e86358cc36003e48.zip
xfs: abstract out dev_t conversions
And move them to xfs_linux.h so that xfsprogs can stub them out more easily. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com> Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Diffstat (limited to 'fs/xfs/xfs_linux.h')
-rw-r--r--fs/xfs/xfs_linux.h10
1 files changed, 10 insertions, 0 deletions
diff --git a/fs/xfs/xfs_linux.h b/fs/xfs/xfs_linux.h
index 6282bfc1afa9..99562ec0de56 100644
--- a/fs/xfs/xfs_linux.h
+++ b/fs/xfs/xfs_linux.h
@@ -204,6 +204,16 @@ static inline kgid_t xfs_gid_to_kgid(uint32_t gid)
return make_kgid(&init_user_ns, gid);
}
+static inline dev_t xfs_to_linux_dev_t(xfs_dev_t dev)
+{
+ return MKDEV(sysv_major(dev) & 0x1ff, sysv_minor(dev));
+}
+
+static inline xfs_dev_t linux_to_xfs_dev_t(dev_t dev)
+{
+ return sysv_encode_dev(dev);
+}
+
/*
* Various platform dependent calls that don't fit anywhere else
*/