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authorDave Chinner <dchinner@redhat.com>2012-04-23 15:59:07 +1000
committerBen Myers <bpm@sgi.com>2012-05-14 16:21:03 -0500
commit611c99468c7aa1a5c2bb6d46e7b5d8e53eecfefd (patch)
tree809588ac3b7ec796041a435dc512a3f22594be4d /fs/xfs/xfs_buf.h
parentd4f3512b0891658b6b4d5fc99567242b3fc2d6b7 (diff)
downloadvexpress-lsk-611c99468c7aa1a5c2bb6d46e7b5d8e53eecfefd.tar.gz
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>
Diffstat (limited to 'fs/xfs/xfs_buf.h')
-rw-r--r--fs/xfs/xfs_buf.h4
1 files changed, 2 insertions, 2 deletions
diff --git a/fs/xfs/xfs_buf.h b/fs/xfs/xfs_buf.h
index 846dee3d8da..7f1d1392ce3 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" }