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authorChristoph Hellwig <hch@lst.de>2012-11-15 23:20:37 +0100
committerBen Myers <bpm@sgi.com>2012-11-20 03:11:24 +0100
commitbc02e8693d875c2a9b0037cfd37fe0b726d26403 (patch)
tree6896726d63947779f941a4daf055da142ad07985 /fs/xfs/uuid.h
parentxfs: convert buffer verifiers to an ops structure. (diff)
downloadlinux-bc02e8693d875c2a9b0037cfd37fe0b726d26403.tar.xz
linux-bc02e8693d875c2a9b0037cfd37fe0b726d26403.zip
xfs: add CRC infrastructure
- add a mount feature bit for CRC enabled filesystems - add some helpers for generating and verifying the CRCs - add a copy_uuid helper The checksumming helpers are loosely based on similar ones in sctp, all other bits come from Dave Chinner. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Dave Chinner <dchinner@redhat.com> Reviewed-by: Mark Tinguely <tinguely@sgi.com> Signed-off-by: Ben Myers <bpm@sgi.com>
Diffstat (limited to 'fs/xfs/uuid.h')
-rw-r--r--fs/xfs/uuid.h6
1 files changed, 6 insertions, 0 deletions
diff --git a/fs/xfs/uuid.h b/fs/xfs/uuid.h
index 4732d71262cc..104db0f3bed6 100644
--- a/fs/xfs/uuid.h
+++ b/fs/xfs/uuid.h
@@ -26,4 +26,10 @@ extern int uuid_is_nil(uuid_t *uuid);
extern int uuid_equal(uuid_t *uuid1, uuid_t *uuid2);
extern void uuid_getnodeuniq(uuid_t *uuid, int fsid [2]);
+static inline void
+uuid_copy(uuid_t *dst, uuid_t *src)
+{
+ memcpy(dst, src, sizeof(uuid_t));
+}
+
#endif /* __XFS_SUPPORT_UUID_H__ */