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Commit 88741a95 authored by Christoph Hellwig's avatar Christoph Hellwig Committed by Nathan Scott
Browse files

[XFS] remove unused pagebuf flags 



SGI-PV: 908809
SGI-Modid: xfs-linux:xfs-kern:198656a

Signed-off-by: default avatarChristoph Hellwig <hch@sgi.com>
Signed-off-by: default avatarNathan Scott <nathans@sgi.com>
parent 04d8b284

fs/xfs/linux-2.6/xfs_buf.c

+7 −17
Original line number Diff line number Diff line
@@ -458,15 +458,8 @@ _pagebuf_lookup_pages( 
			unlock_page(bp->pb_pages[i]);

	}



	if (page_count) {

		/* if we have any uptodate pages, mark that in the buffer */

	bp->pb_flags &= ~PBF_NONE;



		/* if some pages aren't uptodate, mark that in the buffer */

		if (page_count != bp->pb_page_count)

			bp->pb_flags |= PBF_PARTIAL;

	}



	PB_TRACE(bp, "lookup_pages", (long)page_count);

	return error;

}
@@ -676,7 +669,7 @@ xfs_buf_read_flags( 


	pb = xfs_buf_get_flags(target, ioff, isize, flags);

	if (pb) {

		if (PBF_NOT_DONE(pb)) {

		if (!XFS_BUF_ISDONE(pb)) {

			PB_TRACE(pb, "read", (unsigned long)flags);

			XFS_STATS_INC(pb_get_read);

			pagebuf_iostart(pb, flags);
@@ -813,7 +806,7 @@ pagebuf_get_no_daddr( 
	bp = pagebuf_allocate(0);

	if (unlikely(bp == NULL))

		goto fail;

	_pagebuf_initialize(bp, target, 0, len, PBF_FORCEIO);

	_pagebuf_initialize(bp, target, 0, len, 0);



 try_again:

	data = kmem_alloc(malloc_len, KM_SLEEP | KM_MAYFAIL);
@@ -1121,21 +1114,18 @@ pagebuf_iodone_work( 
void

pagebuf_iodone(

	xfs_buf_t		*pb,

	int			dataio,

	int			schedule)

{

	pb->pb_flags &= ~(PBF_READ | PBF_WRITE);

	if (pb->pb_error == 0) {

		pb->pb_flags &= ~(PBF_PARTIAL | PBF_NONE);

	}

	if (pb->pb_error == 0)

		pb->pb_flags &= ~PBF_NONE;



	PB_TRACE(pb, "iodone", pb->pb_iodone);



	if ((pb->pb_iodone) || (pb->pb_flags & PBF_ASYNC)) {

		if (schedule) {

			INIT_WORK(&pb->pb_iodone_work, pagebuf_iodone_work, pb);

			queue_work(dataio ? xfsdatad_workqueue :

				xfslogd_workqueue, &pb->pb_iodone_work);

			queue_work(xfslogd_workqueue, &pb->pb_iodone_work);

		} else {

			pagebuf_iodone_work(pb);

		}
@@ -1235,7 +1225,7 @@ _pagebuf_iodone( 
{

	if (atomic_dec_and_test(&pb->pb_io_remaining) == 1) {

		pb->pb_locked = 0;

		pagebuf_iodone(pb, (pb->pb_flags & PBF_FS_DATAIOD), schedule);

		pagebuf_iodone(pb, schedule);

	}

}

fs/xfs/linux-2.6/xfs_buf.h

+6 −16
Original line number Diff line number Diff line
@@ -69,14 +69,11 @@ typedef enum page_buf_flags_e { /* pb_flags values */ 
	PBF_READ = (1 << 0),	/* buffer intended for reading from device */

	PBF_WRITE = (1 << 1),	/* buffer intended for writing to device   */

	PBF_MAPPED = (1 << 2),  /* buffer mapped (pb_addr valid)           */

	PBF_PARTIAL = (1 << 3), /* buffer partially read                   */

	PBF_ASYNC = (1 << 4),   /* initiator will not wait for completion  */

	PBF_NONE = (1 << 5),    /* buffer not read at all                  */

	PBF_DELWRI = (1 << 6),  /* buffer has dirty pages                  */

	PBF_STALE = (1 << 7),	/* buffer has been staled, do not find it  */

	PBF_FS_MANAGED = (1 << 8),  /* filesystem controls freeing memory  */

	PBF_FS_DATAIOD = (1 << 9),  /* schedule IO completion on fs datad  */

	PBF_FORCEIO = (1 << 10),    /* ignore any cache state		   */

	PBF_FLUSH = (1 << 11),	    /* flush disk write cache		   */

	PBF_READ_AHEAD = (1 << 12), /* asynchronous read-ahead		   */
@@ -92,9 +89,6 @@ typedef enum page_buf_flags_e { /* pb_flags values */ 
	_PBF_DELWRI_Q = (1 << 21),   /* buffer on delwri queue		   */

} page_buf_flags_t;



#define PBF_UPDATE (PBF_READ | PBF_WRITE)

#define PBF_NOT_DONE(pb) (((pb)->pb_flags & (PBF_PARTIAL|PBF_NONE)) != 0)

#define PBF_DONE(pb) (((pb)->pb_flags & (PBF_PARTIAL|PBF_NONE)) == 0)



typedef struct xfs_bufhash {

	struct list_head	bh_list;
@@ -258,7 +252,6 @@ extern void pagebuf_unlock( /* unlock buffer */ 


extern void pagebuf_iodone(		/* mark buffer I/O complete	*/

		xfs_buf_t *,		/* buffer to mark		*/

		int,			/* use data/log helper thread.	*/

		int);			/* run completion locally, or in

					 * a helper thread.		*/
@@ -378,12 +371,12 @@ extern void pagebuf_trace( 
#define XFS_BUF_GETERROR(x)	 pagebuf_geterror(x)

#define XFS_BUF_ISERROR(x)	 (pagebuf_geterror(x)?1:0)



#define XFS_BUF_DONE(x)		 ((x)->pb_flags &= ~(PBF_PARTIAL|PBF_NONE))

#define XFS_BUF_UNDONE(x)	 ((x)->pb_flags |= PBF_PARTIAL|PBF_NONE)

#define XFS_BUF_ISDONE(x)	 (!(PBF_NOT_DONE(x)))

#define XFS_BUF_DONE(x)		 ((x)->pb_flags &= ~PBF_NONE)

#define XFS_BUF_UNDONE(x)	 ((x)->pb_flags |= PBF_NONE)

#define XFS_BUF_ISDONE(x)	 (((x)->pb_flags & PBF_NONE) == 0)



#define XFS_BUF_BUSY(x)		 ((x)->pb_flags |= PBF_FORCEIO)

#define XFS_BUF_UNBUSY(x)	 ((x)->pb_flags &= ~PBF_FORCEIO)

#define XFS_BUF_BUSY(x)		 do { } while (0)

#define XFS_BUF_UNBUSY(x)	 do { } while (0)

#define XFS_BUF_ISBUSY(x)	 (1)



#define XFS_BUF_ASYNC(x)	 ((x)->pb_flags |= PBF_ASYNC)
@@ -412,9 +405,6 @@ extern void pagebuf_trace( 


#define XFS_BUF_BP_ISMAPPED(bp)	 1



#define XFS_BUF_DATAIO(x)	((x)->pb_flags |= PBF_FS_DATAIOD)

#define XFS_BUF_UNDATAIO(x)	((x)->pb_flags &= ~PBF_FS_DATAIOD)



#define XFS_BUF_IODONE_FUNC(buf)	(buf)->pb_iodone

#define XFS_BUF_SET_IODONE_FUNC(buf, func)	\

			(buf)->pb_iodone = (func)
@@ -510,7 +500,7 @@ static inline void xfs_buf_relse(xfs_buf_t *bp) 
	    pagebuf_trace(bp, id, NULL, (void *)__builtin_return_address(0))



#define xfs_biodone(pb)		    \

	    pagebuf_iodone(pb, (pb->pb_flags & PBF_FS_DATAIOD), 0)

	    pagebuf_iodone(pb, 0)



#define xfs_biomove(pb, off, len, data, rw) \

	    pagebuf_iomove((pb), (off), (len), (data), \