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Diffstat (limited to 'fs/xfs/linux-2.6/xfs_buf.h')
-rw-r--r--fs/xfs/linux-2.6/xfs_buf.h95
1 files changed, 37 insertions, 58 deletions
diff --git a/fs/xfs/linux-2.6/xfs_buf.h b/fs/xfs/linux-2.6/xfs_buf.h
index 9b4d666ad31f..386e7361e50e 100644
--- a/fs/xfs/linux-2.6/xfs_buf.h
+++ b/fs/xfs/linux-2.6/xfs_buf.h
@@ -55,6 +55,7 @@ typedef enum {
XBF_FS_MANAGED = (1 << 8), /* filesystem controls freeing memory */
XBF_ORDERED = (1 << 11), /* use ordered writes */
XBF_READ_AHEAD = (1 << 12), /* asynchronous read-ahead */
+ XBF_LOG_BUFFER = (1 << 13), /* this is a buffer used for the log */
/* flags used only as arguments to access routines */
XBF_LOCK = (1 << 14), /* lock requested */
@@ -95,6 +96,28 @@ typedef enum {
_XFS_BARRIER_FAILED = (1 << 23),
} xfs_buf_flags_t;
+#define XFS_BUF_FLAGS \
+ { XBF_READ, "READ" }, \
+ { XBF_WRITE, "WRITE" }, \
+ { XBF_MAPPED, "MAPPED" }, \
+ { XBF_ASYNC, "ASYNC" }, \
+ { XBF_DONE, "DONE" }, \
+ { XBF_DELWRI, "DELWRI" }, \
+ { XBF_STALE, "STALE" }, \
+ { XBF_FS_MANAGED, "FS_MANAGED" }, \
+ { XBF_ORDERED, "ORDERED" }, \
+ { XBF_READ_AHEAD, "READ_AHEAD" }, \
+ { XBF_LOCK, "LOCK" }, /* should never be set */\
+ { XBF_TRYLOCK, "TRYLOCK" }, /* ditto */\
+ { XBF_DONT_BLOCK, "DONT_BLOCK" }, /* ditto */\
+ { _XBF_PAGE_CACHE, "PAGE_CACHE" }, \
+ { _XBF_PAGES, "PAGES" }, \
+ { _XBF_RUN_QUEUES, "RUN_QUEUES" }, \
+ { _XBF_DELWRI_Q, "DELWRI_Q" }, \
+ { _XBF_PAGE_LOCKED, "PAGE_LOCKED" }, \
+ { _XFS_BARRIER_FAILED, "BARRIER_FAILED" }
+
+
typedef enum {
XBT_FORCE_SLEEP = 0,
XBT_FORCE_FLUSH = 1,
@@ -186,15 +209,10 @@ extern xfs_buf_t *_xfs_buf_find(xfs_buftarg_t *, xfs_off_t, size_t,
#define xfs_incore(buftarg,blkno,len,lockit) \
_xfs_buf_find(buftarg, blkno ,len, lockit, NULL)
-extern xfs_buf_t *xfs_buf_get_flags(xfs_buftarg_t *, xfs_off_t, size_t,
+extern xfs_buf_t *xfs_buf_get(xfs_buftarg_t *, xfs_off_t, size_t,
xfs_buf_flags_t);
-#define xfs_buf_get(target, blkno, len, flags) \
- xfs_buf_get_flags((target), (blkno), (len), XBF_LOCK | XBF_MAPPED)
-
-extern xfs_buf_t *xfs_buf_read_flags(xfs_buftarg_t *, xfs_off_t, size_t,
+extern xfs_buf_t *xfs_buf_read(xfs_buftarg_t *, xfs_off_t, size_t,
xfs_buf_flags_t);
-#define xfs_buf_read(target, blkno, len, flags) \
- xfs_buf_read_flags((target), (blkno), (len), XBF_LOCK | XBF_MAPPED)
extern xfs_buf_t *xfs_buf_get_empty(size_t, xfs_buftarg_t *);
extern xfs_buf_t *xfs_buf_get_noaddr(size_t, xfs_buftarg_t *);
@@ -214,13 +232,17 @@ extern void xfs_buf_lock(xfs_buf_t *);
extern void xfs_buf_unlock(xfs_buf_t *);
/* Buffer Read and Write Routines */
-extern int xfs_bawrite(void *mp, xfs_buf_t *bp);
+extern int xfs_bwrite(struct xfs_mount *mp, struct xfs_buf *bp);
extern void xfs_bdwrite(void *mp, xfs_buf_t *bp);
+
+extern void xfsbdstrat(struct xfs_mount *, struct xfs_buf *);
+extern int xfs_bdstrat_cb(struct xfs_buf *);
+
extern void xfs_buf_ioend(xfs_buf_t *, int);
extern void xfs_buf_ioerror(xfs_buf_t *, int);
extern int xfs_buf_iorequest(xfs_buf_t *);
extern int xfs_buf_iowait(xfs_buf_t *);
-extern void xfs_buf_iomove(xfs_buf_t *, size_t, size_t, xfs_caddr_t,
+extern void xfs_buf_iomove(xfs_buf_t *, size_t, size_t, void *,
xfs_buf_rw_t);
static inline int xfs_buf_iostrategy(xfs_buf_t *bp)
@@ -243,49 +265,29 @@ extern int xfs_buf_ispin(xfs_buf_t *);
/* Delayed Write Buffer Routines */
extern void xfs_buf_delwri_dequeue(xfs_buf_t *);
+extern void xfs_buf_delwri_promote(xfs_buf_t *);
/* Buffer Daemon Setup Routines */
extern int xfs_buf_init(void);
extern void xfs_buf_terminate(void);
-#ifdef XFS_BUF_TRACE
-extern ktrace_t *xfs_buf_trace_buf;
-extern void xfs_buf_trace(xfs_buf_t *, char *, void *, void *);
-#else
-#define xfs_buf_trace(bp,id,ptr,ra) do { } while (0)
-#endif
-
#define xfs_buf_target_name(target) \
({ char __b[BDEVNAME_SIZE]; bdevname((target)->bt_bdev, __b); __b; })
-#define XFS_B_ASYNC XBF_ASYNC
-#define XFS_B_DELWRI XBF_DELWRI
-#define XFS_B_READ XBF_READ
-#define XFS_B_WRITE XBF_WRITE
-#define XFS_B_STALE XBF_STALE
-
-#define XFS_BUF_TRYLOCK XBF_TRYLOCK
-#define XFS_INCORE_TRYLOCK XBF_TRYLOCK
-#define XFS_BUF_LOCK XBF_LOCK
-#define XFS_BUF_MAPPED XBF_MAPPED
-
-#define BUF_BUSY XBF_DONT_BLOCK
-
#define XFS_BUF_BFLAGS(bp) ((bp)->b_flags)
#define XFS_BUF_ZEROFLAGS(bp) ((bp)->b_flags &= \
~(XBF_READ|XBF_WRITE|XBF_ASYNC|XBF_DELWRI|XBF_ORDERED))
-#define XFS_BUF_STALE(bp) ((bp)->b_flags |= XFS_B_STALE)
-#define XFS_BUF_UNSTALE(bp) ((bp)->b_flags &= ~XFS_B_STALE)
-#define XFS_BUF_ISSTALE(bp) ((bp)->b_flags & XFS_B_STALE)
+#define XFS_BUF_STALE(bp) ((bp)->b_flags |= XBF_STALE)
+#define XFS_BUF_UNSTALE(bp) ((bp)->b_flags &= ~XBF_STALE)
+#define XFS_BUF_ISSTALE(bp) ((bp)->b_flags & XBF_STALE)
#define XFS_BUF_SUPER_STALE(bp) do { \
XFS_BUF_STALE(bp); \
xfs_buf_delwri_dequeue(bp); \
XFS_BUF_DONE(bp); \
} while (0)
-#define XFS_BUF_MANAGE XBF_FS_MANAGED
#define XFS_BUF_UNMANAGE(bp) ((bp)->b_flags &= ~XBF_FS_MANAGED)
#define XFS_BUF_DELAYWRITE(bp) ((bp)->b_flags |= XBF_DELWRI)
@@ -370,39 +372,15 @@ static inline void xfs_buf_relse(xfs_buf_t *bp)
#define xfs_bpin(bp) xfs_buf_pin(bp)
#define xfs_bunpin(bp) xfs_buf_unpin(bp)
-
-#define xfs_buftrace(id, bp) \
- xfs_buf_trace(bp, id, NULL, (void *)__builtin_return_address(0))
-
#define xfs_biodone(bp) xfs_buf_ioend(bp, 0)
#define xfs_biomove(bp, off, len, data, rw) \
xfs_buf_iomove((bp), (off), (len), (data), \
- ((rw) == XFS_B_WRITE) ? XBRW_WRITE : XBRW_READ)
+ ((rw) == XBF_WRITE) ? XBRW_WRITE : XBRW_READ)
#define xfs_biozero(bp, off, len) \
xfs_buf_iomove((bp), (off), (len), NULL, XBRW_ZERO)
-
-static inline int XFS_bwrite(xfs_buf_t *bp)
-{
- int iowait = (bp->b_flags & XBF_ASYNC) == 0;
- int error = 0;
-
- if (!iowait)
- bp->b_flags |= _XBF_RUN_QUEUES;
-
- xfs_buf_delwri_dequeue(bp);
- xfs_buf_iostrategy(bp);
- if (iowait) {
- error = xfs_buf_iowait(bp);
- xfs_buf_relse(bp);
- }
- return error;
-}
-
-#define XFS_bdstrat(bp) xfs_buf_iorequest(bp)
-
#define xfs_iowait(bp) xfs_buf_iowait(bp)
#define xfs_baread(target, rablkno, ralen) \
@@ -417,6 +395,7 @@ extern void xfs_free_buftarg(struct xfs_mount *, struct xfs_buftarg *);
extern void xfs_wait_buftarg(xfs_buftarg_t *);
extern int xfs_setsize_buftarg(xfs_buftarg_t *, unsigned int, unsigned int);
extern int xfs_flush_buftarg(xfs_buftarg_t *, int);
+
#ifdef CONFIG_KDB_MODULES
extern struct list_head *xfs_get_buftarg_list(void);
#endif
generated by cgit v1.2.3-55-g7522 (git 2.39.0) at 2025-04-27 04:24:04 +0200