diff options
| -rw-r--r-- | fs/xfs/xfs_log.c | 4 | ||||
| -rw-r--r-- | fs/xfs/xfs_log_recover.c | 15 | ||||
| -rw-r--r-- | fs/xfs/xfs_trans.h | 1 | ||||
| -rw-r--r-- | fs/xfs/xfs_trans_ail.c | 117 | ||||
| -rw-r--r-- | fs/xfs/xfs_trans_priv.h | 13 |
5 files changed, 58 insertions, 92 deletions
diff --git a/fs/xfs/xfs_log.c b/fs/xfs/xfs_log.c index 4184085d44af..31fbb2eea092 100644 --- a/fs/xfs/xfs_log.c +++ b/fs/xfs/xfs_log.c @@ -909,7 +909,7 @@ xfs_log_need_covered(xfs_mount_t *mp) spin_lock(&log->l_icloglock); if (((log->l_covered_state == XLOG_STATE_COVER_NEED) || (log->l_covered_state == XLOG_STATE_COVER_NEED2)) - && !xfs_trans_first_ail(mp, NULL) + && !xfs_trans_ail_tail(mp->m_ail) && xlog_iclogs_empty(log)) { if (log->l_covered_state == XLOG_STATE_COVER_NEED) log->l_covered_state = XLOG_STATE_COVER_DONE; @@ -946,7 +946,7 @@ xlog_assign_tail_lsn(xfs_mount_t *mp) xfs_lsn_t tail_lsn; xlog_t *log = mp->m_log; - tail_lsn = xfs_trans_tail_ail(mp); + tail_lsn = xfs_trans_ail_tail(mp->m_ail); spin_lock(&log->l_grant_lock); if (tail_lsn != 0) { log->l_tail_lsn = tail_lsn; diff --git a/fs/xfs/xfs_log_recover.c b/fs/xfs/xfs_log_recover.c index 37ba4899f3e6..45ea0d950138 100644 --- a/fs/xfs/xfs_log_recover.c +++ b/fs/xfs/xfs_log_recover.c @@ -2728,8 +2728,7 @@ xlog_recover_do_efd_trans( */ mp = log->l_mp; spin_lock(&mp->m_ail_lock); - xfs_trans_ail_cursor_init(mp->m_ail, &cur); - lip = xfs_trans_first_ail(mp, &cur); + lip = xfs_trans_ail_cursor_first(mp->m_ail, &cur, 0); while (lip != NULL) { if (lip->li_type == XFS_LI_EFI) { efip = (xfs_efi_log_item_t *)lip; @@ -2744,7 +2743,7 @@ xlog_recover_do_efd_trans( break; } } - lip = xfs_trans_next_ail(mp, &cur); + lip = xfs_trans_ail_cursor_next(mp->m_ail, &cur); } xfs_trans_ail_cursor_done(mp->m_ail, &cur); spin_unlock(&mp->m_ail_lock); @@ -3061,8 +3060,7 @@ xlog_recover_process_efis( mp = log->l_mp; spin_lock(&mp->m_ail_lock); - xfs_trans_ail_cursor_init(mp->m_ail, &cur); - lip = xfs_trans_first_ail(mp, &cur); + lip = xfs_trans_ail_cursor_first(mp->m_ail, &cur, 0); while (lip != NULL) { /* * We're done when we see something other than an EFI. @@ -3070,7 +3068,8 @@ xlog_recover_process_efis( */ if (lip->li_type != XFS_LI_EFI) { #ifdef DEBUG - for (; lip; lip = xfs_trans_next_ail(mp, &cur)) + for (; lip; + lip = xfs_trans_ail_cursor_next(mp->m_ail, &cur)) ASSERT(lip->li_type != XFS_LI_EFI); #endif break; @@ -3081,7 +3080,7 @@ xlog_recover_process_efis( */ efip = (xfs_efi_log_item_t *)lip; if (efip->efi_flags & XFS_EFI_RECOVERED) { - lip = xfs_trans_next_ail(mp, &cur); + lip = xfs_trans_ail_cursor_next(mp->m_ail, &cur); continue; } @@ -3090,7 +3089,7 @@ xlog_recover_process_efis( spin_lock(&mp->m_ail_lock); if (error) goto out; - lip = xfs_trans_next_ail(mp, &cur); + lip = xfs_trans_ail_cursor_next(mp->m_ail, &cur); } out: xfs_trans_ail_cursor_done(mp->m_ail, &cur); diff --git a/fs/xfs/xfs_trans.h b/fs/xfs/xfs_trans.h index 1d89d50a5b99..ae2ae3e020d6 100644 --- a/fs/xfs/xfs_trans.h +++ b/fs/xfs/xfs_trans.h @@ -971,7 +971,6 @@ void xfs_trans_cancel(xfs_trans_t *, int); int xfs_trans_ail_init(struct xfs_mount *); void xfs_trans_ail_destroy(struct xfs_mount *); void xfs_trans_push_ail(struct xfs_mount *, xfs_lsn_t); -xfs_lsn_t xfs_trans_tail_ail(struct xfs_mount *); void xfs_trans_unlocked_item(struct xfs_mount *, xfs_log_item_t *); xfs_log_busy_slot_t *xfs_trans_add_busy(xfs_trans_t *tp, diff --git a/fs/xfs/xfs_trans_ail.c b/fs/xfs/xfs_trans_ail.c index 7b8bfcf1d3da..286934d56ec7 100644 --- a/fs/xfs/xfs_trans_ail.c +++ b/fs/xfs/xfs_trans_ail.c @@ -50,20 +50,20 @@ STATIC void xfs_ail_check(struct xfs_ail *, xfs_log_item_t *); * lsn of the last item in the AIL. */ xfs_lsn_t -xfs_trans_tail_ail( - xfs_mount_t *mp) +xfs_trans_ail_tail( + struct xfs_ail *ailp) { xfs_lsn_t lsn; xfs_log_item_t *lip; - spin_lock(&mp->m_ail_lock); - lip = xfs_ail_min(mp->m_ail); + spin_lock(&ailp->xa_mount->m_ail_lock); + lip = xfs_ail_min(ailp); if (lip == NULL) { lsn = (xfs_lsn_t)0; } else { lsn = lip->li_lsn; } - spin_unlock(&mp->m_ail_lock); + spin_unlock(&ailp->xa_mount->m_ail_lock); return lsn; } @@ -111,7 +111,7 @@ xfs_trans_push_ail( * We don't link the push cursor because it is embedded in the struct * xfs_ail and hence easily findable. */ -void +STATIC void xfs_trans_ail_cursor_init( struct xfs_ail *ailp, struct xfs_ail_cursor *cur) @@ -143,7 +143,7 @@ xfs_trans_ail_cursor_set( * If the cursor was invalidated (inidicated by a lip of 1), * restart the traversal. */ -STATIC struct xfs_log_item * +struct xfs_log_item * xfs_trans_ail_cursor_next( struct xfs_ail *ailp, struct xfs_ail_cursor *cur) @@ -157,30 +157,6 @@ xfs_trans_ail_cursor_next( } /* - * Invalidate any cursor that is pointing to this item. This is - * called when an item is removed from the AIL. Any cursor pointing - * to this object is now invalid and the traversal needs to be - * terminated so it doesn't reference a freed object. We set the - * cursor item to a value of 1 so we can distinguish between an - * invalidation and the end of the list when getting the next item - * from the cursor. - */ -STATIC void -xfs_trans_ail_cursor_clear( - struct xfs_ail *ailp, - struct xfs_log_item *lip) -{ - struct xfs_ail_cursor *cur; - - /* need to search all cursors */ - for (cur = &ailp->xa_cursors; cur; cur = cur->next) { - if (cur->item == lip) - cur->item = (struct xfs_log_item *) - ((__psint_t)cur->item | 1); - } -} - -/* * Now that the traversal is complete, we need to remove the cursor * from the list of traversing cursors. Avoid removing the embedded * push cursor, but use the fact it is alway present to make the @@ -208,31 +184,55 @@ xfs_trans_ail_cursor_done( } /* + * Invalidate any cursor that is pointing to this item. This is + * called when an item is removed from the AIL. Any cursor pointing + * to this object is now invalid and the traversal needs to be + * terminated so it doesn't reference a freed object. We set the + * cursor item to a value of 1 so we can distinguish between an + * invalidation and the end of the list when getting the next item + * from the cursor. + */ +STATIC void +xfs_trans_ail_cursor_clear( + struct xfs_ail *ailp, + struct xfs_log_item *lip) +{ + struct xfs_ail_cursor *cur; + + /* need to search all cursors */ + for (cur = &ailp->xa_cursors; cur; cur = cur->next) { + if (cur->item == lip) + cur->item = (struct xfs_log_item *) + ((__psint_t)cur->item | 1); + } +} + +/* * Return the item in the AIL with the current lsn. * Return the current tree generation number for use * in calls to xfs_trans_next_ail(). */ -STATIC xfs_log_item_t * -xfs_trans_first_push_ail( +xfs_log_item_t * +xfs_trans_ail_cursor_first( struct xfs_ail *ailp, struct xfs_ail_cursor *cur, xfs_lsn_t lsn) { xfs_log_item_t *lip; + xfs_trans_ail_cursor_init(ailp, cur); lip = xfs_ail_min(ailp); - xfs_trans_ail_cursor_set(ailp, cur, lip); if (lsn == 0) - return lip; + goto out; list_for_each_entry(lip, &ailp->xa_ail, li_ail) { - if (XFS_LSN_CMP(lip->li_lsn, lsn) >= 0) { - xfs_trans_ail_cursor_set(ailp, cur, lip); - return lip; - } + if (XFS_LSN_CMP(lip->li_lsn, lsn) >= 0) + break; } - - return NULL; + lip = NULL; +out: + xfs_trans_ail_cursor_set(ailp, cur, lip); + return lip; } /* @@ -254,7 +254,7 @@ xfsaild_push( spin_lock(&mp->m_ail_lock); xfs_trans_ail_cursor_init(ailp, cur); - lip = xfs_trans_first_push_ail(ailp, cur, *last_lsn); + lip = xfs_trans_ail_cursor_first(ailp, cur, *last_lsn); if (!lip || XFS_FORCED_SHUTDOWN(mp)) { /* * AIL is empty or our push has reached the end. @@ -552,39 +552,6 @@ xfs_trans_delete_ail( /* - * Return the item in the AIL with the smallest lsn. - * Return the current tree generation number for use - * in calls to xfs_trans_next_ail(). - */ -xfs_log_item_t * -xfs_trans_first_ail( - struct xfs_mount *mp, - struct xfs_ail_cursor *cur) -{ - xfs_log_item_t *lip; - struct xfs_ail *ailp = mp->m_ail; - - lip = xfs_ail_min(ailp); - xfs_trans_ail_cursor_set(ailp, cur, lip); - - return lip; -} - -/* - * Grab the next item in the AIL from the cursor passed in. - */ -xfs_log_item_t * -xfs_trans_next_ail( - struct xfs_mount *mp, - struct xfs_ail_cursor *cur) -{ - struct xfs_ail *ailp = mp->m_ail; - - return xfs_trans_ail_cursor_next(ailp, cur); -} - - -/* * The active item list (AIL) is a doubly linked list of log * items sorted by ascending lsn. The base of the list is * a forw/back pointer pair embedded in the xfs mount structure. diff --git a/fs/xfs/xfs_trans_priv.h b/fs/xfs/xfs_trans_priv.h index f114d388570a..aa5853502529 100644 --- a/fs/xfs/xfs_trans_priv.h +++ b/fs/xfs/xfs_trans_priv.h @@ -90,14 +90,15 @@ void xfs_trans_update_ail(struct xfs_mount *mp, void xfs_trans_delete_ail(struct xfs_mount *mp, struct xfs_log_item *lip) __releases(mp->m_ail_lock); -struct xfs_log_item *xfs_trans_first_ail(struct xfs_mount *mp, - struct xfs_ail_cursor *cur); -struct xfs_log_item *xfs_trans_next_ail(struct xfs_mount *mp, - struct xfs_ail_cursor *cur); -void xfs_trans_ail_cursor_init(struct xfs_ail *ailp, +xfs_lsn_t xfs_trans_ail_tail(struct xfs_ail *ailp); + +struct xfs_log_item *xfs_trans_ail_cursor_first(struct xfs_ail *ailp, + struct xfs_ail_cursor *cur, + xfs_lsn_t lsn); +struct xfs_log_item *xfs_trans_ail_cursor_next(struct xfs_ail *ailp, struct xfs_ail_cursor *cur); -void xfs_trans_ail_cursor_done(struct xfs_ail *ailp, +void xfs_trans_ail_cursor_done(struct xfs_ail *ailp, struct xfs_ail_cursor *cur); long xfsaild_push(struct xfs_ail *, xfs_lsn_t *); |