xfs: make XBF_MAPPED the default behaviour

Rather than specifying XBF_MAPPED for almost all buffers, introduce
XBF_UNMAPPED for the couple of users that use unmapped buffers.

Signed-off-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Mark Tinguely <tinguely@sgi.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Ben Myers <bpm@sgi.com>

1 files changed, 2 insertions, 2 deletions

diff --git a/fs/xfs/xfs_buf.h b/fs/xfs/xfs_buf.h
index 846dee3d8dac..7f1d1392ce37 100644
--- a/fs/xfs/xfs_buf.h
+++ b/fs/xfs/xfs_buf.h
@@ -41,7 +41,6 @@ typedef enum {
 #define XBF_READ        (1 << 0) /* buffer intended for reading from device */
 #define XBF_WRITE       (1 << 1) /* buffer intended for writing to device */
 #define XBF_READ_AHEAD  (1 << 2) /* asynchronous read-ahead */
-#define XBF_MAPPED      (1 << 3) /* buffer mapped (b_addr valid) */
 #define XBF_ASYNC       (1 << 4) /* initiator will not wait for completion */
 #define XBF_DONE        (1 << 5) /* all pages in the buffer uptodate */
 #define XBF_STALE       (1 << 6) /* buffer has been staled, do not find it */
@@ -53,6 +52,7 @@ typedef enum {
 
 /* flags used only as arguments to access routines */
 #define XBF_TRYLOCK     (1 << 16)/* lock requested, but do not wait */
+#define XBF_UNMAPPED    (1 << 17)/* do not map the buffer */
 
 /* flags used only internally */
 #define _XBF_PAGES      (1 << 20)/* backed by refcounted pages */
@@ -65,7 +65,6 @@ typedef unsigned int xfs_buf_flags_t;
         { XBF_READ,             "READ" }, \
         { XBF_WRITE,            "WRITE" }, \
         { XBF_READ_AHEAD,       "READ_AHEAD" }, \
-        { XBF_MAPPED,           "MAPPED" }, \
         { XBF_ASYNC,            "ASYNC" }, \
         { XBF_DONE,             "DONE" }, \
         { XBF_STALE,            "STALE" }, \
@@ -73,6 +72,7 @@ typedef unsigned int xfs_buf_flags_t;
         { XBF_FUA,              "FUA" }, \
         { XBF_FLUSH,            "FLUSH" }, \
         { XBF_TRYLOCK,          "TRYLOCK" },    /* should never be set */\
+        { XBF_UNMAPPED,         "UNMAPPED" },   /* ditto */\
         { _XBF_PAGES,           "PAGES" }, \
         { _XBF_KMEM,            "KMEM" }, \
         { _XBF_DELWRI_Q,        "DELWRI_Q" }