[PATCH 06/11] xfs: remove wrappers around b_fspriv

Christoph Hellwig
2011-07-10T20:50:21Z

[-- Attachment #1: xfs-simplify-b_fspriv --]
[-- Type: text/plain, Size: 14930 bytes --]

Signed-off-by: Christoph Hellwig <hch@lst.de>

Index: xfs/fs/xfs/linux-2.6/xfs_buf.h
===================================================================
--- xfs.orig/fs/xfs/linux-2.6/xfs_buf.h 2011-07-09 09:34:12.288966468 +0200
+++ xfs/fs/xfs/linux-2.6/xfs_buf.h 2011-07-09 09:34:13.248966419 +0200
@@ -280,8 +280,6 @@ void xfs_buf_stale(struct xfs_buf *bp);
#define XFS_BUF_SET_IODONE_FUNC(bp, func) ((bp)->b_iodone = (func))
#define XFS_BUF_CLR_IODONE_FUNC(bp) ((bp)->b_iodone = NULL)

-#define XFS_BUF_FSPRIVATE(bp, type) ((type)(bp)->b_fspriv)
-#define XFS_BUF_SET_FSPRIVATE(bp, val) ((bp)->b_fspriv = (void*)(val))
#define XFS_BUF_SET_START(bp) do { } while (0)

#define XFS_BUF_PTR(bp) (xfs_caddr_t)((bp)->b_addr)
Index: xfs/fs/xfs/xfs_buf_item.c
===================================================================
--- xfs.orig/fs/xfs/xfs_buf_item.c 2011-07-09 09:34:12.292299803 +0200
+++ xfs/fs/xfs/xfs_buf_item.c 2011-07-09 09:34:13.252299751 +0200
@@ -90,13 +90,11 @@ xfs_buf_item_flush_log_debug(
uint first,
uint last)
{
- xfs_buf_log_item_t *bip;
+ xfs_buf_log_item_t *bip = bp->b_fspriv;
uint nbytes;

- bip = XFS_BUF_FSPRIVATE(bp, xfs_buf_log_item_t*);
- if ((bip == NULL) || (bip->bli_item.li_type != XFS_LI_BUF)) {
+ if (bip == NULL || (bip->bli_item.li_type != XFS_LI_BUF))
return;
- }

ASSERT(bip->bli_logged != NULL);
nbytes = last - first + 1;
@@ -408,7 +406,7 @@ xfs_buf_item_unpin(
int stale = bip->bli_flags & XFS_BLI_STALE;
int freed;

- ASSERT(XFS_BUF_FSPRIVATE(bp, xfs_buf_log_item_t *) == bip);
+ ASSERT(bp->b_fspriv == bip);
ASSERT(atomic_read(&bip->bli_refcount) > 0);

trace_xfs_buf_item_unpin(bip);
@@ -454,13 +452,13 @@ xfs_buf_item_unpin(
*/
if (bip->bli_flags & XFS_BLI_STALE_INODE) {
xfs_buf_do_callbacks(bp);
- XFS_BUF_SET_FSPRIVATE(bp, NULL);
+ bp->b_fspriv = NULL;
XFS_BUF_CLR_IODONE_FUNC(bp);
} else {
spin_lock(&ailp->xa_lock);
xfs_trans_ail_delete(ailp, (xfs_log_item_t *)bip);
xfs_buf_item_relse(bp);
- ASSERT(XFS_BUF_FSPRIVATE(bp, void *) == NULL);
+ ASSERT(bp->b_fspriv == NULL);
}
xfs_buf_relse(bp);
}
@@ -684,7 +682,7 @@ xfs_buf_item_init(
xfs_buf_t *bp,
xfs_mount_t *mp)
{
- xfs_log_item_t *lip;
+ xfs_log_item_t *lip = bp->b_fspriv;
xfs_buf_log_item_t *bip;
int chunks;
int map_size;
@@ -696,12 +694,8 @@ xfs_buf_item_init(
* nothing to do here so return.
*/
ASSERT(bp->b_target->bt_mount == mp);
- if (XFS_BUF_FSPRIVATE(bp, void *) != NULL) {
- lip = XFS_BUF_FSPRIVATE(bp, xfs_log_item_t *);
- if (lip->li_type == XFS_LI_BUF) {
- return;
- }
- }
+ if (lip != NULL && lip->li_type == XFS_LI_BUF)
+ return;

/*
* chunks is the number of XFS_BLF_CHUNK size pieces
@@ -740,11 +734,9 @@ xfs_buf_item_init(
* Put the buf item into the list of items attached to the
* buffer at the front.
*/
- if (XFS_BUF_FSPRIVATE(bp, void *) != NULL) {
- bip->bli_item.li_bio_list =
- XFS_BUF_FSPRIVATE(bp, xfs_log_item_t *);
- }
- XFS_BUF_SET_FSPRIVATE(bp, bip);
+ if (bp->b_fspriv)
+ bip->bli_item.li_bio_list = bp->b_fspriv;
+ bp->b_fspriv = bip;
}

@@ -876,12 +868,11 @@ xfs_buf_item_relse(

trace_xfs_buf_item_relse(bp, _RET_IP_);

- bip = XFS_BUF_FSPRIVATE(bp, xfs_buf_log_item_t*);
- XFS_BUF_SET_FSPRIVATE(bp, bip->bli_item.li_bio_list);
- if ((XFS_BUF_FSPRIVATE(bp, void *) == NULL) &&
- (XFS_BUF_IODONE_FUNC(bp) != NULL)) {
+ bip = bp->b_fspriv;
+ bp->b_fspriv = bip->bli_item.li_bio_list;
+ if (bp->b_fspriv == NULL && XFS_BUF_IODONE_FUNC(bp) != NULL)
XFS_BUF_CLR_IODONE_FUNC(bp);
- }
+
xfs_buf_rele(bp);
xfs_buf_item_free(bip);
}
@@ -908,12 +899,12 @@ xfs_buf_attach_iodone(
ASSERT(xfs_buf_islocked(bp));

lip->li_cb = cb;
- if (XFS_BUF_FSPRIVATE(bp, void *) != NULL) {
- head_lip = XFS_BUF_FSPRIVATE(bp, xfs_log_item_t *);
+ head_lip = bp->b_fspriv;
+ if (head_lip) {
lip->li_bio_list = head_lip->li_bio_list;
head_lip->li_bio_list = lip;
} else {
- XFS_BUF_SET_FSPRIVATE(bp, lip);
+ bp->b_fspriv = lip;
}

ASSERT((XFS_BUF_IODONE_FUNC(bp) == xfs_buf_iodone_callbacks) ||
@@ -939,8 +930,8 @@ xfs_buf_do_callbacks(
{
struct xfs_log_item *lip;

- while ((lip = XFS_BUF_FSPRIVATE(bp, xfs_log_item_t *)) != NULL) {
- XFS_BUF_SET_FSPRIVATE(bp, lip->li_bio_list);
+ while ((lip = bp->b_fspriv) != NULL) {
+ bp->b_fspriv = lip->li_bio_list;
ASSERT(lip->li_cb != NULL);
/*
* Clear the next pointer so we don't have any
@@ -1026,7 +1017,7 @@ xfs_buf_iodone_callbacks(

do_callbacks:
xfs_buf_do_callbacks(bp);
- XFS_BUF_SET_FSPRIVATE(bp, NULL);
+ bp->b_fspriv = NULL;
XFS_BUF_CLR_IODONE_FUNC(bp);
xfs_buf_ioend(bp, 0);
}
Index: xfs/fs/xfs/xfs_inode.c
===================================================================
--- xfs.orig/fs/xfs/xfs_inode.c 2011-07-09 09:16:01.012355050 +0200
+++ xfs/fs/xfs/xfs_inode.c 2011-07-09 09:34:13.255633083 +0200
@@ -1698,7 +1698,7 @@ xfs_ifree_cluster(
* stale first, we will not attempt to lock them in the loop
* below as the XFS_ISTALE flag will be set.
*/
- lip = XFS_BUF_FSPRIVATE(bp, xfs_log_item_t *);
+ lip = bp->b_fspriv;
while (lip) {
if (lip->li_type == XFS_LI_INODE) {
iip = (xfs_inode_log_item_t *)lip;
@@ -2811,7 +2811,7 @@ xfs_iflush_int(
*/
xfs_buf_attach_iodone(bp, xfs_iflush_done, &iip->ili_item);

- ASSERT(XFS_BUF_FSPRIVATE(bp, void *) != NULL);
+ ASSERT(bp->b_fspriv != NULL);
ASSERT(XFS_BUF_IODONE_FUNC(bp) != NULL);
} else {
/*
Index: xfs/fs/xfs/xfs_log.c
===================================================================
--- xfs.orig/fs/xfs/xfs_log.c 2011-07-09 09:34:12.292299803 +0200
+++ xfs/fs/xfs/xfs_log.c 2011-07-09 09:34:13.258966416 +0200
@@ -871,13 +871,9 @@ xlog_space_left(
void
xlog_iodone(xfs_buf_t *bp)
{
- xlog_in_core_t *iclog;
- xlog_t *l;
- int aborted;
-
- iclog = XFS_BUF_FSPRIVATE(bp, xlog_in_core_t *);
- aborted = 0;
- l = iclog->ic_log;
+ xlog_in_core_t *iclog = bp->b_fspriv;
+ xlog_t *l = iclog->ic_log;
+ int aborted = 0;

/*
* Race to shutdown the filesystem if we see an error.
@@ -1249,9 +1245,8 @@ STATIC int
xlog_bdstrat(
struct xfs_buf *bp)
{
- struct xlog_in_core *iclog;
+ struct xlog_in_core *iclog = bp->b_fspriv;

- iclog = XFS_BUF_FSPRIVATE(bp, xlog_in_core_t *);
if (iclog->ic_state & XLOG_STATE_IOERROR) {
XFS_BUF_ERROR(bp, EIO);
XFS_BUF_STALE(bp);
@@ -1358,7 +1353,7 @@ xlog_sync(xlog_t *log,
iclog->ic_bwritecnt = 1;
}
XFS_BUF_SET_COUNT(bp, count);
- XFS_BUF_SET_FSPRIVATE(bp, iclog); /* save for later */
+ bp->b_fspriv = iclog;
XFS_BUF_ZEROFLAGS(bp);
XFS_BUF_BUSY(bp);
XFS_BUF_ASYNC(bp);
@@ -1405,7 +1400,7 @@ xlog_sync(xlog_t *log,
XFS_BUF_SET_ADDR(bp, 0); /* logical 0 */
XFS_BUF_SET_PTR(bp, (xfs_caddr_t)((__psint_t)&(iclog->ic_header)+
(__psint_t)count), split);
- XFS_BUF_SET_FSPRIVATE(bp, iclog);
+ bp->b_fspriv = iclog;
XFS_BUF_ZEROFLAGS(bp);
XFS_BUF_BUSY(bp);
XFS_BUF_ASYNC(bp);
Index: xfs/fs/xfs/xfs_trans_buf.c
===================================================================
--- xfs.orig/fs/xfs/xfs_trans_buf.c 2011-07-09 09:34:12.295633137 +0200
+++ xfs/fs/xfs/xfs_trans_buf.c 2011-07-09 09:34:13.258966416 +0200
@@ -89,7 +89,7 @@ _xfs_trans_bjoin(
* The checks to see if one is there are in xfs_buf_item_init().
*/
xfs_buf_item_init(bp, tp->t_mountp);
- bip = XFS_BUF_FSPRIVATE(bp, xfs_buf_log_item_t *);
+ bip = bp->b_fspriv;
ASSERT(!(bip->bli_flags & XFS_BLI_STALE));
ASSERT(!(bip->bli_format.blf_flags & XFS_BLF_CANCEL));
ASSERT(!(bip->bli_flags & XFS_BLI_LOGGED));
@@ -173,7 +173,7 @@ xfs_trans_get_buf(xfs_trans_t *tp,
ASSERT(!XFS_BUF_ISDELAYWRITE(bp));

ASSERT(bp->b_transp == tp);
- bip = XFS_BUF_FSPRIVATE(bp, xfs_buf_log_item_t *);
+ bip = bp->b_fspriv;
ASSERT(bip != NULL);
ASSERT(atomic_read(&bip->bli_refcount) > 0);
bip->bli_recur++;
@@ -233,7 +233,7 @@ xfs_trans_getsb(xfs_trans_t *tp,
*/
bp = mp->m_sb_bp;
if (bp->b_transp == tp) {
- bip = XFS_BUF_FSPRIVATE(bp, xfs_buf_log_item_t*);
+ bip = bp->b_fspriv;
ASSERT(bip != NULL);
ASSERT(atomic_read(&bip->bli_refcount) > 0);
bip->bli_recur++;
@@ -329,7 +329,7 @@ xfs_trans_read_buf(
if (bp != NULL) {
ASSERT(xfs_buf_islocked(bp));
ASSERT(bp->b_transp == tp);
- ASSERT(XFS_BUF_FSPRIVATE(bp, void *) != NULL);
+ ASSERT(bp->b_fspriv != NULL);
ASSERT((XFS_BUF_ISERROR(bp)) == 0);
if (!(XFS_BUF_ISDONE(bp))) {
trace_xfs_trans_read_buf_io(bp, _RET_IP_);
@@ -363,7 +363,7 @@ xfs_trans_read_buf(
}

- bip = XFS_BUF_FSPRIVATE(bp, xfs_buf_log_item_t*);
+ bip = bp->b_fspriv;
bip->bli_recur++;

ASSERT(atomic_read(&bip->bli_refcount) > 0);
@@ -460,32 +460,30 @@ xfs_trans_brelse(xfs_trans_t *tp,
xfs_buf_t *bp)
{
xfs_buf_log_item_t *bip;
- xfs_log_item_t *lip;

/*
* Default to a normal brelse() call if the tp is NULL.
*/
if (tp == NULL) {
+ struct xfs_log_item *lip = bp->b_fspriv;
+
ASSERT(bp->b_transp == NULL);
+
/*
* If there's a buf log item attached to the buffer,
* then let the AIL know that the buffer is being
* unlocked.
*/
- if (XFS_BUF_FSPRIVATE(bp, void *) != NULL) {
- lip = XFS_BUF_FSPRIVATE(bp, xfs_log_item_t *);
- if (lip->li_type == XFS_LI_BUF) {
- bip = XFS_BUF_FSPRIVATE(bp,xfs_buf_log_item_t*);
- xfs_trans_unlocked_item(bip->bli_item.li_ailp,
- lip);
- }
+ if (lip != NULL && lip->li_type == XFS_LI_BUF) {
+ bip = bp->b_fspriv;
+ xfs_trans_unlocked_item(bip->bli_item.li_ailp, lip);
}
xfs_buf_relse(bp);
return;
}

ASSERT(bp->b_transp == tp);
- bip = XFS_BUF_FSPRIVATE(bp, xfs_buf_log_item_t *);
+ bip = bp->b_fspriv;
ASSERT(bip->bli_item.li_type == XFS_LI_BUF);
ASSERT(!(bip->bli_flags & XFS_BLI_STALE));
ASSERT(!(bip->bli_format.blf_flags & XFS_BLF_CANCEL));
@@ -581,16 +579,15 @@ void
xfs_trans_bhold(xfs_trans_t *tp,
xfs_buf_t *bp)
{
- xfs_buf_log_item_t *bip;
+ xfs_buf_log_item_t *bip = bp->b_fspriv;

ASSERT(XFS_BUF_ISBUSY(bp));
ASSERT(bp->b_transp == tp);
- ASSERT(XFS_BUF_FSPRIVATE(bp, void *) != NULL);
-
- bip = XFS_BUF_FSPRIVATE(bp, xfs_buf_log_item_t *);
+ ASSERT(bip != NULL);
ASSERT(!(bip->bli_flags & XFS_BLI_STALE));
ASSERT(!(bip->bli_format.blf_flags & XFS_BLF_CANCEL));
ASSERT(atomic_read(&bip->bli_refcount) > 0);
+
bip->bli_flags |= XFS_BLI_HOLD;
trace_xfs_trans_bhold(bip);
}
@@ -603,19 +600,17 @@ void
xfs_trans_bhold_release(xfs_trans_t *tp,
xfs_buf_t *bp)
{
- xfs_buf_log_item_t *bip;
+ xfs_buf_log_item_t *bip = bp->b_fspriv;

ASSERT(XFS_BUF_ISBUSY(bp));
ASSERT(bp->b_transp == tp);
- ASSERT(XFS_BUF_FSPRIVATE(bp, void *) != NULL);
-
- bip = XFS_BUF_FSPRIVATE(bp, xfs_buf_log_item_t *);
+ ASSERT(bip != NULL);
ASSERT(!(bip->bli_flags & XFS_BLI_STALE));
ASSERT(!(bip->bli_format.blf_flags & XFS_BLF_CANCEL));
ASSERT(atomic_read(&bip->bli_refcount) > 0);
ASSERT(bip->bli_flags & XFS_BLI_HOLD);
- bip->bli_flags &= ~XFS_BLI_HOLD;

+ bip->bli_flags &= ~XFS_BLI_HOLD;
trace_xfs_trans_bhold_release(bip);
}

@@ -634,11 +629,11 @@ xfs_trans_log_buf(xfs_trans_t *tp,
uint first,
uint last)
{
- xfs_buf_log_item_t *bip;
+ xfs_buf_log_item_t *bip = bp->b_fspriv;

ASSERT(XFS_BUF_ISBUSY(bp));
ASSERT(bp->b_transp == tp);
- ASSERT(XFS_BUF_FSPRIVATE(bp, void *) != NULL);
+ ASSERT(bip != NULL);
ASSERT((first <= last) && (last < XFS_BUF_COUNT(bp)));
ASSERT((XFS_BUF_IODONE_FUNC(bp) == NULL) ||
(XFS_BUF_IODONE_FUNC(bp) == xfs_buf_iodone_callbacks));
@@ -656,7 +651,6 @@ xfs_trans_log_buf(xfs_trans_t *tp,
XFS_BUF_DELAYWRITE(bp);
XFS_BUF_DONE(bp);

- bip = XFS_BUF_FSPRIVATE(bp, xfs_buf_log_item_t *);
ASSERT(atomic_read(&bip->bli_refcount) > 0);
XFS_BUF_SET_IODONE_FUNC(bp, xfs_buf_iodone_callbacks);
bip->bli_item.li_cb = xfs_buf_iodone;
@@ -706,13 +700,11 @@ xfs_trans_binval(
xfs_trans_t *tp,
xfs_buf_t *bp)
{
- xfs_buf_log_item_t *bip;
+ xfs_buf_log_item_t *bip = bp->b_fspriv;

ASSERT(XFS_BUF_ISBUSY(bp));
ASSERT(bp->b_transp == tp);
- ASSERT(XFS_BUF_FSPRIVATE(bp, void *) != NULL);
-
- bip = XFS_BUF_FSPRIVATE(bp, xfs_buf_log_item_t *);
+ ASSERT(bip != NULL);
ASSERT(atomic_read(&bip->bli_refcount) > 0);

trace_xfs_trans_binval(bip);
@@ -780,13 +772,11 @@ xfs_trans_inode_buf(
xfs_trans_t *tp,
xfs_buf_t *bp)
{
- xfs_buf_log_item_t *bip;
+ xfs_buf_log_item_t *bip = bp->b_fspriv;

ASSERT(XFS_BUF_ISBUSY(bp));
ASSERT(bp->b_transp == tp);
- ASSERT(XFS_BUF_FSPRIVATE(bp, void *) != NULL);
-
- bip = XFS_BUF_FSPRIVATE(bp, xfs_buf_log_item_t *);
+ ASSERT(bip != NULL);
ASSERT(atomic_read(&bip->bli_refcount) > 0);

bip->bli_flags |= XFS_BLI_INODE_BUF;
@@ -806,13 +796,11 @@ xfs_trans_stale_inode_buf(
xfs_trans_t *tp,
xfs_buf_t *bp)
{
- xfs_buf_log_item_t *bip;
+ xfs_buf_log_item_t *bip = bp->b_fspriv;

ASSERT(XFS_BUF_ISBUSY(bp));
ASSERT(bp->b_transp == tp);
- ASSERT(XFS_BUF_FSPRIVATE(bp, void *) != NULL);
-
- bip = XFS_BUF_FSPRIVATE(bp, xfs_buf_log_item_t *);
+ ASSERT(bip != NULL);
ASSERT(atomic_read(&bip->bli_refcount) > 0);

bip->bli_flags |= XFS_BLI_STALE_INODE;
@@ -833,13 +821,11 @@ xfs_trans_inode_alloc_buf(
xfs_trans_t *tp,
xfs_buf_t *bp)
{
- xfs_buf_log_item_t *bip;
+ xfs_buf_log_item_t *bip = bp->b_fspriv;

ASSERT(XFS_BUF_ISBUSY(bp));
ASSERT(bp->b_transp == tp);
- ASSERT(XFS_BUF_FSPRIVATE(bp, void *) != NULL);
-
- bip = XFS_BUF_FSPRIVATE(bp, xfs_buf_log_item_t *);
+ ASSERT(bip != NULL);
ASSERT(atomic_read(&bip->bli_refcount) > 0);

bip->bli_flags |= XFS_BLI_INODE_ALLOC_BUF;
@@ -863,16 +849,14 @@ xfs_trans_dquot_buf(
xfs_buf_t *bp,
uint type)
{
- xfs_buf_log_item_t *bip;
+ xfs_buf_log_item_t *bip = bp->b_fspriv;

ASSERT(XFS_BUF_ISBUSY(bp));
ASSERT(bp->b_transp == tp);
- ASSERT(XFS_BUF_FSPRIVATE(bp, void *) != NULL);
+ ASSERT(bip != NULL);
ASSERT(type == XFS_BLF_UDQUOT_BUF ||
type == XFS_BLF_PDQUOT_BUF ||
type == XFS_BLF_GDQUOT_BUF);
-
- bip = XFS_BUF_FSPRIVATE(bp, xfs_buf_log_item_t *);
ASSERT(atomic_read(&bip->bli_refcount) > 0);

bip->bli_format.blf_flags |= type;
Index: xfs/fs/xfs/xfs_inode_item.c
===================================================================
--- xfs.orig/fs/xfs/xfs_inode_item.c 2011-07-09 09:16:01.012355050 +0200
+++ xfs/fs/xfs/xfs_inode_item.c 2011-07-09 09:34:13.262299750 +0200
@@ -874,7 +874,7 @@ xfs_iflush_done(
* Scan the buffer IO completions for other inodes being completed and
* attach them to the current inode log item.
*/
- blip = XFS_BUF_FSPRIVATE(bp, xfs_log_item_t *);
+ blip = bp->b_fspriv;
prev = NULL;
while (blip != NULL) {
if (lip->li_cb != xfs_iflush_done) {
@@ -886,7 +886,7 @@ xfs_iflush_done(
/* remove from list */
next = blip->li_bio_list;
if (!prev) {
- XFS_BUF_SET_FSPRIVATE(bp, next);
+ bp->b_fspriv = next;
} else {
prev->li_bio_list = next;
}