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/*
*
*
*/
#include "xfs.h"
#include "xfs_macros.h"
#include "xfs_types.h"
#include "xfs_inum.h"
#include "xfs_log.h"
#include "xfs_trans.h"
#include "xfs_sb.h"
#include "xfs_ag.h"
#include "xfs_dir.h"
#include "xfs_dir2.h"
#include "xfs_dmapi.h"
#include "xfs_mount.h"
#include "xfs_clnt.h"
#include "xfs_mountops.h"
#include <geom/geom.h>
xfs_buf_t *
xfs_buf_read_flags(xfs_buftarg_t *target, xfs_daddr_t blkno, size_t len, int flags)
{
struct buf *bp;
struct g_consumer *cp;
KASSERT((target != NULL), ("got NULL buftarg_t"));
cp = target->specvp->v_bufobj.bo_private;
if (cp == NULL) {
bp = NULL;
goto done;
}
/* This restriction is in GEOM's g_io_request() */
if ((BBTOB(len) % cp->provider->sectorsize) != 0) {
printf("Read request %ld does not align with sector size: %d\n",
(long)BBTOB(len), cp->provider->sectorsize);
bp = NULL;
goto done;
}
if (bread(target->specvp, blkno, BBTOB(len), NOCRED, &bp)) {
printf("bread failed specvp %p blkno %qd BBTOB(len) %ld\n",
target->specvp, blkno, (long)BBTOB(len));
bp = NULL;
goto done;
}
if (flags & B_MANAGED)
bp->b_flags |= B_MANAGED;
xfs_buf_set_target(bp, target);
done:
return (bp);
}
xfs_buf_t *
xfs_buf_get_flags(xfs_buftarg_t *target, xfs_daddr_t blkno, size_t len, int flags)
{
struct buf *bp = NULL;
KASSERT((target != NULL), ("got NULL buftarg_t"));
bp = getblk(target->specvp, blkno, BBTOB(len), 0, 0, 0);
if (bp != NULL)
xfs_buf_set_target(bp, target);
return (bp);
}
xfs_buf_t*
xfs_buf_get_empty(size_t size, xfs_buftarg_t *target)
{
struct buf *bp;
bp = geteblk(0);
if (bp != NULL) {
bp->b_bufsize = size;
bp->b_bcount = size;
KASSERT(BUF_REFCNT(bp) == 1,
("xfs_buf_get_empty: bp %p not locked",bp));
xfs_buf_set_target(bp, target);
}
return (bp);
}
xfs_buf_t*
xfs_buf_get_noaddr(size_t len, xfs_buftarg_t *target)
{
struct buf *bp;
if (len >= MAXPHYS)
return (NULL);
bp = geteblk(len);
if (bp != NULL) {
KASSERT(BUF_REFCNT(bp) == 1,
("xfs_buf_get_empty: bp %p not locked",bp));
xfs_buf_set_target(bp, target);
}
return (bp);
}
void
xfs_buf_free(xfs_buf_t *bp)
{
bp->b_flags |= B_INVAL;
BUF_KERNPROC(bp); /* ugly hack #1 */
if (bp->b_kvasize == 0) {
bp->b_saveaddr = bp->b_kvabase; /* ugly hack #2 */
bp->b_data = bp->b_saveaddr;
bp->b_bcount = 0;
bp->b_bufsize = 0;
}
brelse(bp);
}
void
xfs_baread(xfs_buftarg_t *targp, xfs_daddr_t ioff, size_t isize)
{
daddr_t rablkno;
int rabsize;
rablkno = ioff;
rabsize = BBTOB(isize);
breada(targp->specvp, &rablkno, &rabsize, 1, NOCRED);
}
void
xfs_buf_set_target(xfs_buf_t *bp, xfs_buftarg_t *targ)
{
bp->b_bufobj = &targ->specvp->v_bufobj;
bp->b_caller1 = targ;
}
xfs_buftarg_t *
xfs_buf_get_target(xfs_buf_t *bp)
{
return (xfs_buftarg_t *)bp->b_caller1;
}
int
XFS_bwrite(xfs_buf_t *bp)
{
int error;
if (bp->b_vp == NULL) {
error = xfs_buf_iorequest(bp);
if ((bp->b_flags & B_ASYNC) == 0) {
error = bufwait(bp);
if (BUF_REFCNT(bp) > 1)
BUF_UNLOCK(bp);
else
brelse(bp);
}
return (error);
}
error = bwrite(bp);
return (error);
}
void
xfs_bpin(xfs_buf_t *bp)
{
printf("xfs_bpin(%p)\n", bp);
bpin(bp);
}
void
xfs_bunpin(xfs_buf_t *bp)
{
printf("xfs_bunpin(%p)\n", bp);
bunpin(bp);
}
int
xfs_ispin(xfs_buf_t *bp)
{
printf("xfs_ispin(%p)\n", bp);
return bp->b_pin_count;
}
void
xfs_bwait_unpin(xfs_buf_t *bp)
{
printf("xfs_bwait_unpin(%p)\n", bp);
bunpin_wait(bp);
}
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