return container_of(lip, struct xfs_buf_log_item, bli_item);
}
-
-#ifdef XFS_TRANS_DEBUG
-/*
- * This function uses an alternate strategy for tracking the bytes
- * that the user requests to be logged. This can then be used
- * in conjunction with the bli_orig array in the buf log item to
- * catch bugs in our callers' code.
- *
- * We also double check the bits set in xfs_buf_item_log using a
- * simple algorithm to check that every byte is accounted for.
- */
-STATIC void
-xfs_buf_item_log_debug(
- xfs_buf_log_item_t *bip,
- uint first,
- uint last)
-{
- uint x;
- uint byte;
- uint nbytes;
- uint chunk_num;
- uint word_num;
- uint bit_num;
- uint bit_set;
- uint *wordp;
-
- ASSERT(bip->bli_logged != NULL);
- byte = first;
- nbytes = last - first + 1;
- bfset(bip->bli_logged, first, nbytes);
- for (x = 0; x < nbytes; x++) {
- chunk_num = byte >> XFS_BLF_SHIFT;
- word_num = chunk_num >> BIT_TO_WORD_SHIFT;
- bit_num = chunk_num & (NBWORD - 1);
- wordp = &(bip->__bli_format.blf_data_map[word_num]);
- bit_set = *wordp & (1 << bit_num);
- ASSERT(bit_set);
- byte++;
- }
-}
-
-/*
- * This function is called when we flush something into a buffer without
- * logging it. This happens for things like inodes which are logged
- * separately from the buffer.
- */
-void
-xfs_buf_item_flush_log_debug(
- xfs_buf_t *bp,
- uint first,
- uint last)
-{
- xfs_buf_log_item_t *bip = bp->b_fspriv;
- uint nbytes;
-
- if (bip == NULL || (bip->bli_item.li_type != XFS_LI_BUF))
- return;
-
- ASSERT(bip->bli_logged != NULL);
- nbytes = last - first + 1;
- bfset(bip->bli_logged, first, nbytes);
-}
-
-/*
- * This function is called to verify that our callers have logged
- * all the bytes that they changed.
- *
- * It does this by comparing the original copy of the buffer stored in
- * the buf log item's bli_orig array to the current copy of the buffer
- * and ensuring that all bytes which mismatch are set in the bli_logged
- * array of the buf log item.
- */
-STATIC void
-xfs_buf_item_log_check(
- xfs_buf_log_item_t *bip)
-{
- char *orig;
- char *buffer;
- int x;
- xfs_buf_t *bp;
-
- ASSERT(bip->bli_orig != NULL);
- ASSERT(bip->bli_logged != NULL);
-
- bp = bip->bli_buf;
- ASSERT(bp->b_length > 0);
- ASSERT(bp->b_addr != NULL);
- orig = bip->bli_orig;
- buffer = bp->b_addr;
- for (x = 0; x < BBTOB(bp->b_length); x++) {
- if (orig[x] != buffer[x] && !btst(bip->bli_logged, x)) {
- xfs_emerg(bp->b_mount,
- "%s: bip %x buffer %x orig %x index %d",
- __func__, bip, bp, orig, x);
- ASSERT(0);
- }
- }
-}
-#else
-#define xfs_buf_item_log_debug(x,y,z)
-#define xfs_buf_item_log_check(x)
-#endif
-
STATIC void xfs_buf_do_callbacks(struct xfs_buf *bp);
/*
* Check to make sure everything is consistent.
*/
trace_xfs_buf_item_format(bip);
- xfs_buf_item_log_check(bip);
}
/*
mask = (1 << end_bit) - 1;
*wordp |= mask;
}
-
- xfs_buf_item_log_debug(bip, first, last);
}
/*
unsigned int bli_flags; /* misc flags */
unsigned int bli_recur; /* lock recursion count */
atomic_t bli_refcount; /* cnt of tp refs */
-#ifdef XFS_TRANS_DEBUG
- char *bli_orig; /* original buffer copy */
- char *bli_logged; /* bytes logged (bitmap) */
-#endif
int bli_format_count; /* count of headers */
struct xfs_buf_log_format *bli_formats; /* array of in-log header ptrs */
struct xfs_buf_log_format __bli_format; /* embedded in-log header */
void xfs_buf_iodone_callbacks(struct xfs_buf *);
void xfs_buf_iodone(struct xfs_buf *, struct xfs_log_item *);
-#ifdef XFS_TRANS_DEBUG
-void
-xfs_buf_item_flush_log_debug(
- struct xfs_buf *bp,
- uint first,
- uint last);
-#else
-#define xfs_buf_item_flush_log_debug(bp, first, last)
-#endif
-
#endif /* __KERNEL__ */
#endif /* __XFS_BUF_ITEM_H__ */
char *cp;
xfs_ifork_t *ifp;
xfs_mount_t *mp;
-#ifdef XFS_TRANS_DEBUG
- int first;
-#endif
static const short brootflag[2] =
{ XFS_ILOG_DBROOT, XFS_ILOG_ABROOT };
static const short dataflag[2] =
xfs_inode_log_item_t *iip;
xfs_dinode_t *dip;
xfs_mount_t *mp;
-#ifdef XFS_TRANS_DEBUG
- int first;
-#endif
ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL|XFS_ILOCK_SHARED));
ASSERT(xfs_isiflocked(ip));
} else {
ASSERT(!(iip->ili_fields &
XFS_ILOG_DBROOT));
-#ifdef XFS_TRANS_DEBUG
- if (iip->ili_root_size > 0) {
- ASSERT(iip->ili_root_size ==
- ip->i_df.if_broot_bytes);
- ASSERT(memcmp(iip->ili_orig_root,
- ip->i_df.if_broot,
- iip->ili_root_size) == 0);
- } else {
- ASSERT(ip->i_df.if_broot_bytes == 0);
- }
-#endif
iip->ili_fields &= ~XFS_ILOG_DBROOT;
}
break;
xfs_inode_item_destroy(
xfs_inode_t *ip)
{
-#ifdef XFS_TRANS_DEBUG
- if (ip->i_itemp->ili_root_size != 0) {
- kmem_free(ip->i_itemp->ili_orig_root);
- }
-#endif
kmem_zone_free(xfs_ili_zone, ip->i_itemp);
}
data exts */
struct xfs_bmbt_rec *ili_aextents_buf; /* array of logged
attr exts */
-#ifdef XFS_TRANS_DEBUG
- int ili_root_size;
- char *ili_orig_root;
-#endif
xfs_inode_log_format_t ili_format; /* logged structure */
} xfs_inode_log_item_t;
ASSERT(XFS_LSN_CMP(prev_lip->li_lsn, lip->li_lsn) >= 0);
-#ifdef XFS_TRANS_DEBUG
- /*
- * Walk the list checking lsn ordering, and that every entry has the
- * XFS_LI_IN_AIL flag set. This is really expensive, so only do it
- * when specifically debugging the transaction subsystem.
- */
- prev_lip = list_entry(&ailp->xa_ail, xfs_log_item_t, li_ail);
- list_for_each_entry(lip, &ailp->xa_ail, li_ail) {
- if (&prev_lip->li_ail != &ailp->xa_ail)
- ASSERT(XFS_LSN_CMP(prev_lip->li_lsn, lip->li_lsn) <= 0);
- ASSERT((lip->li_flags & XFS_LI_IN_AIL) != 0);
- prev_lip = lip;
- }
-#endif /* XFS_TRANS_DEBUG */
}
#else /* !DEBUG */
#define xfs_ail_check(a,l)
#include "xfs_inode_item.h"
#include "xfs_trace.h"
-#ifdef XFS_TRANS_DEBUG
-STATIC void
-xfs_trans_inode_broot_debug(
- xfs_inode_t *ip);
-#else
-#define xfs_trans_inode_broot_debug(ip)
-#endif
-
/*
* Add a locked inode to the transaction.
*
* Get a log_item_desc to point at the new item.
*/
xfs_trans_add_item(tp, &iip->ili_item);
-
- xfs_trans_inode_broot_debug(ip);
}
/*
flags |= ip->i_itemp->ili_last_fields;
ip->i_itemp->ili_fields |= flags;
}
-
-#ifdef XFS_TRANS_DEBUG
-/*
- * Keep track of the state of the inode btree root to make sure we
- * log it properly.
- */
-STATIC void
-xfs_trans_inode_broot_debug(
- xfs_inode_t *ip)
-{
- xfs_inode_log_item_t *iip;
-
- ASSERT(ip->i_itemp != NULL);
- iip = ip->i_itemp;
- if (iip->ili_root_size != 0) {
- ASSERT(iip->ili_orig_root != NULL);
- kmem_free(iip->ili_orig_root);
- iip->ili_root_size = 0;
- iip->ili_orig_root = NULL;
- }
- if (ip->i_d.di_format == XFS_DINODE_FMT_BTREE) {
- ASSERT((ip->i_df.if_broot != NULL) &&
- (ip->i_df.if_broot_bytes > 0));
- iip->ili_root_size = ip->i_df.if_broot_bytes;
- iip->ili_orig_root =
- (char*)kmem_alloc(iip->ili_root_size, KM_SLEEP);
- memcpy(iip->ili_orig_root, (char*)(ip->i_df.if_broot),
- iip->ili_root_size);
- }
-}
-#endif
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