summaryrefslogtreecommitdiffstats
diff options
context:
space:
mode:
Diffstat
-rw-r--r--fs/xfs/xfs_attr.c15
-rw-r--r--fs/xfs/xfs_buf.c22
-rw-r--r--fs/xfs/xfs_buf.h4
-rw-r--r--fs/xfs/xfs_log.c5
-rw-r--r--fs/xfs/xfs_log_recover.c8
-rw-r--r--fs/xfs/xfs_trace.h14
6 files changed, 34 insertions, 34 deletions
diff --git a/fs/xfs/xfs_attr.c b/fs/xfs/xfs_attr.c
index 65d61b948ead..6e9bd7e46982 100644
--- a/fs/xfs/xfs_attr.c
+++ b/fs/xfs/xfs_attr.c
@@ -1993,8 +1993,7 @@ xfs_attr_rmtval_get(xfs_da_args_t *args)
if (error)
return(error);
- tmp = (valuelen < XFS_BUF_SIZE(bp))
- ? valuelen : XFS_BUF_SIZE(bp);
+ tmp = min_t(int, valuelen, BBTOB(bp->b_length));
xfs_buf_iomove(bp, 0, tmp, dst, XBRW_READ);
xfs_buf_relse(bp);
dst += tmp;
@@ -2097,6 +2096,8 @@ xfs_attr_rmtval_set(xfs_da_args_t *args)
lblkno = args->rmtblkno;
valuelen = args->valuelen;
while (valuelen > 0) {
+ int buflen;
+
/*
* Try to remember where we decided to put the value.
*/
@@ -2118,11 +2119,13 @@ xfs_attr_rmtval_set(xfs_da_args_t *args)
XBF_LOCK | XBF_DONT_BLOCK);
if (!bp)
return ENOMEM;
- tmp = (valuelen < XFS_BUF_SIZE(bp)) ? valuelen :
- XFS_BUF_SIZE(bp);
+
+ buflen = BBTOB(bp->b_length);
+ tmp = min_t(int, valuelen, buflen);
xfs_buf_iomove(bp, 0, tmp, src, XBRW_WRITE);
- if (tmp < XFS_BUF_SIZE(bp))
- xfs_buf_zero(bp, tmp, XFS_BUF_SIZE(bp) - tmp);
+ if (tmp < buflen)
+ xfs_buf_zero(bp, tmp, buflen - tmp);
+
error = xfs_bwrite(bp); /* GROT: NOTE: synchronous write */
xfs_buf_relse(bp);
if (error)
diff --git a/fs/xfs/xfs_buf.c b/fs/xfs/xfs_buf.c
index 854b27a8e776..382c49a42ac2 100644
--- a/fs/xfs/xfs_buf.c
+++ b/fs/xfs/xfs_buf.c
@@ -198,11 +198,12 @@ xfs_buf_alloc(
bp->b_target = target;
/*
- * Set buffer_length and count_desired to the same value initially.
+ * Set length and count_desired to the same value initially.
* I/O routines should use count_desired, which will be the same in
* most cases but may be reset (e.g. XFS recovery).
*/
- bp->b_buffer_length = bp->b_count_desired = numblks << BBSHIFT;
+ bp->b_length = numblks;
+ bp->b_count_desired = numblks << BBSHIFT;
bp->b_flags = flags;
/*
@@ -313,14 +314,14 @@ xfs_buf_allocate_memory(
* the memory from the heap - there's no need for the complexity of
* page arrays to keep allocation down to order 0.
*/
- if (bp->b_buffer_length < PAGE_SIZE) {
- bp->b_addr = kmem_alloc(bp->b_buffer_length, xb_to_km(flags));
+ if (bp->b_length < BTOBB(PAGE_SIZE)) {
+ bp->b_addr = kmem_alloc(BBTOB(bp->b_length), xb_to_km(flags));
if (!bp->b_addr) {
/* low memory - use alloc_page loop instead */
goto use_alloc_page;
}
- if (((unsigned long)(bp->b_addr + bp->b_buffer_length - 1) &
+ if (((unsigned long)(bp->b_addr + BBTOB(bp->b_length) - 1) &
PAGE_MASK) !=
((unsigned long)bp->b_addr & PAGE_MASK)) {
/* b_addr spans two pages - use alloc_page instead */
@@ -337,7 +338,7 @@ xfs_buf_allocate_memory(
}
use_alloc_page:
- end = BBTOB(bp->b_bn) + bp->b_buffer_length;
+ end = BBTOB(bp->b_bn + bp->b_length);
page_count = xfs_buf_btoc(end) - xfs_buf_btoct(BBTOB(bp->b_bn));
error = _xfs_buf_get_pages(bp, page_count, flags);
if (unlikely(error))
@@ -477,7 +478,7 @@ _xfs_buf_find(
* reallocating a busy extent. Skip this buffer and
* continue searching to the right for an exact match.
*/
- if (bp->b_buffer_length != numbytes) {
+ if (bp->b_length != numblks) {
ASSERT(bp->b_flags & XBF_STALE);
rbp = &(*rbp)->rb_right;
continue;
@@ -574,7 +575,7 @@ xfs_buf_get(
* that we can do IO on it.
*/
bp->b_bn = blkno;
- bp->b_count_desired = bp->b_buffer_length;
+ bp->b_count_desired = BBTOB(bp->b_length);
found:
if (!(bp->b_flags & XBF_MAPPED)) {
@@ -716,7 +717,8 @@ xfs_buf_set_empty(
bp->b_pages = NULL;
bp->b_page_count = 0;
bp->b_addr = NULL;
- bp->b_buffer_length = bp->b_count_desired = numblks << BBSHIFT;
+ bp->b_length = numblks;
+ bp->b_count_desired = numblks << BBSHIFT;
bp->b_bn = XFS_BUF_DADDR_NULL;
bp->b_flags &= ~XBF_MAPPED;
}
@@ -769,7 +771,7 @@ xfs_buf_associate_memory(
}
bp->b_count_desired = len;
- bp->b_buffer_length = buflen;
+ bp->b_length = BTOBB(buflen);
bp->b_flags |= XBF_MAPPED;
return 0;
diff --git a/fs/xfs/xfs_buf.h b/fs/xfs/xfs_buf.h
index 4d472e5ded7a..3dab208686a4 100644
--- a/fs/xfs/xfs_buf.h
+++ b/fs/xfs/xfs_buf.h
@@ -117,7 +117,7 @@ typedef struct xfs_buf {
*/
struct rb_node b_rbnode; /* rbtree node */
xfs_daddr_t b_bn; /* block number for I/O */
- size_t b_buffer_length;/* size of buffer in bytes */
+ int b_length; /* size of buffer in BBs */
atomic_t b_hold; /* reference count */
atomic_t b_lru_ref; /* lru reclaim ref count */
xfs_buf_flags_t b_flags; /* status flags */
@@ -246,8 +246,6 @@ void xfs_buf_stale(struct xfs_buf *bp);
#define XFS_BUF_SET_ADDR(bp, bno) ((bp)->b_bn = (xfs_daddr_t)(bno))
#define XFS_BUF_COUNT(bp) ((bp)->b_count_desired)
#define XFS_BUF_SET_COUNT(bp, cnt) ((bp)->b_count_desired = (cnt))
-#define XFS_BUF_SIZE(bp) ((bp)->b_buffer_length)
-#define XFS_BUF_SET_SIZE(bp, cnt) ((bp)->b_buffer_length = (cnt))
static inline void xfs_buf_set_ref(struct xfs_buf *bp, int lru_ref)
{
diff --git a/fs/xfs/xfs_log.c b/fs/xfs/xfs_log.c
index 89900129a4a3..f9d8355ffae2 100644
--- a/fs/xfs/xfs_log.c
+++ b/fs/xfs/xfs_log.c
@@ -1197,9 +1197,6 @@ xlog_alloc_log(xfs_mount_t *mp,
spin_lock_init(&log->l_icloglock);
init_waitqueue_head(&log->l_flush_wait);
- /* log record size must be multiple of BBSIZE; see xlog_rec_header_t */
- ASSERT((XFS_BUF_SIZE(bp) & BBMASK) == 0);
-
iclogp = &log->l_iclog;
/*
* The amount of memory to allocate for the iclog structure is
@@ -1239,7 +1236,7 @@ xlog_alloc_log(xfs_mount_t *mp,
head->h_fmt = cpu_to_be32(XLOG_FMT);
memcpy(&head->h_fs_uuid, &mp->m_sb.sb_uuid, sizeof(uuid_t));
- iclog->ic_size = XFS_BUF_SIZE(bp) - log->l_iclog_hsize;
+ iclog->ic_size = BBTOB(bp->b_length) - log->l_iclog_hsize;
iclog->ic_state = XLOG_STATE_ACTIVE;
iclog->ic_log = log;
atomic_set(&iclog->ic_refcnt, 0);
diff --git a/fs/xfs/xfs_log_recover.c b/fs/xfs/xfs_log_recover.c
index 8a2165c56108..24f59a25ecdd 100644
--- a/fs/xfs/xfs_log_recover.c
+++ b/fs/xfs/xfs_log_recover.c
@@ -146,7 +146,7 @@ xlog_align(
{
xfs_daddr_t offset = blk_no & ((xfs_daddr_t)log->l_sectBBsize - 1);
- ASSERT(BBTOB(offset + nbblks) <= XFS_BUF_SIZE(bp));
+ ASSERT(offset + nbblks <= bp->b_length);
return bp->b_addr + BBTOB(offset);
}
@@ -174,7 +174,7 @@ xlog_bread_noalign(
nbblks = round_up(nbblks, log->l_sectBBsize);
ASSERT(nbblks > 0);
- ASSERT(BBTOB(nbblks) <= XFS_BUF_SIZE(bp));
+ ASSERT(nbblks <= bp->b_length);
XFS_BUF_SET_ADDR(bp, log->l_logBBstart + blk_no);
XFS_BUF_READ(bp);
@@ -219,7 +219,7 @@ xlog_bread_offset(
xfs_caddr_t offset)
{
xfs_caddr_t orig_offset = bp->b_addr;
- int orig_len = bp->b_buffer_length;
+ int orig_len = BBTOB(bp->b_length);
int error, error2;
error = xfs_buf_associate_memory(bp, offset, BBTOB(nbblks));
@@ -260,7 +260,7 @@ xlog_bwrite(
nbblks = round_up(nbblks, log->l_sectBBsize);
ASSERT(nbblks > 0);
- ASSERT(BBTOB(nbblks) <= XFS_BUF_SIZE(bp));
+ ASSERT(nbblks <= bp->b_length);
XFS_BUF_SET_ADDR(bp, log->l_logBBstart + blk_no);
XFS_BUF_ZEROFLAGS(bp);
diff --git a/fs/xfs/xfs_trace.h b/fs/xfs/xfs_trace.h
index 2e41756e263a..900764c450a8 100644
--- a/fs/xfs/xfs_trace.h
+++ b/fs/xfs/xfs_trace.h
@@ -281,7 +281,7 @@ DECLARE_EVENT_CLASS(xfs_buf_class,
TP_STRUCT__entry(
__field(dev_t, dev)
__field(xfs_daddr_t, bno)
- __field(size_t, buffer_length)
+ __field(int, nblks)
__field(int, hold)
__field(int, pincount)
__field(unsigned, lockval)
@@ -291,18 +291,18 @@ DECLARE_EVENT_CLASS(xfs_buf_class,
TP_fast_assign(
__entry->dev = bp->b_target->bt_dev;
__entry->bno = bp->b_bn;
- __entry->buffer_length = bp->b_buffer_length;
+ __entry->nblks = bp->b_length;
__entry->hold = atomic_read(&bp->b_hold);
__entry->pincount = atomic_read(&bp->b_pin_count);
__entry->lockval = bp->b_sema.count;
__entry->flags = bp->b_flags;
__entry->caller_ip = caller_ip;
),
- TP_printk("dev %d:%d bno 0x%llx len 0x%zx hold %d pincount %d "
+ TP_printk("dev %d:%d bno 0x%llx nblks 0x%x hold %d pincount %d "
"lock %d flags %s caller %pf",
MAJOR(__entry->dev), MINOR(__entry->dev),
(unsigned long long)__entry->bno,
- __entry->buffer_length,
+ __entry->nblks,
__entry->hold,
__entry->pincount,
__entry->lockval,
@@ -362,7 +362,7 @@ DECLARE_EVENT_CLASS(xfs_buf_flags_class,
TP_fast_assign(
__entry->dev = bp->b_target->bt_dev;
__entry->bno = bp->b_bn;
- __entry->buffer_length = bp->b_buffer_length;
+ __entry->buffer_length = BBTOB(bp->b_length);
__entry->flags = flags;
__entry->hold = atomic_read(&bp->b_hold);
__entry->pincount = atomic_read(&bp->b_pin_count);
@@ -406,7 +406,7 @@ TRACE_EVENT(xfs_buf_ioerror,
TP_fast_assign(
__entry->dev = bp->b_target->bt_dev;
__entry->bno = bp->b_bn;
- __entry->buffer_length = bp->b_buffer_length;
+ __entry->buffer_length = BBTOB(bp->b_length);
__entry->hold = atomic_read(&bp->b_hold);
__entry->pincount = atomic_read(&bp->b_pin_count);
__entry->lockval = bp->b_sema.count;
@@ -450,7 +450,7 @@ DECLARE_EVENT_CLASS(xfs_buf_item_class,
__entry->bli_recur = bip->bli_recur;
__entry->bli_refcount = atomic_read(&bip->bli_refcount);
__entry->buf_bno = bip->bli_buf->b_bn;
- __entry->buf_len = bip->bli_buf->b_buffer_length;
+ __entry->buf_len = BBTOB(bip->bli_buf->b_length);
__entry->buf_flags = bip->bli_buf->b_flags;
__entry->buf_hold = atomic_read(&bip->bli_buf->b_hold);
__entry->buf_pincount = atomic_read(&bip->bli_buf->b_pin_count);
OpenPOWER on IntegriCloud