From: David Chinner Date: Thu, 30 Oct 2008 06:39:35 +0000 (+1100) Subject: [XFS] Given the log a pointer to the AIL X-Git-Tag: firefly_0821_release~14055^2~133^2~18 X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=a9c21c1b9deaced836034e77fe25fe0b55c21f02;p=firefly-linux-kernel-4.4.55.git [XFS] Given the log a pointer to the AIL When we need to go from the log to the AIL, we have to go via the xfs_mount. Add a xfs_ail pointer to the log so we can go directly to the AIL associated with the log. SGI-PV: 988143 SGI-Modid: xfs-linux-melb:xfs-kern:32351a Signed-off-by: David Chinner Signed-off-by: Lachlan McIlroy Signed-off-by: Christoph Hellwig --- diff --git a/fs/xfs/xfs_log.c b/fs/xfs/xfs_log.c index a2f7422a749f..405a41ab6855 100644 --- a/fs/xfs/xfs_log.c +++ b/fs/xfs/xfs_log.c @@ -572,6 +572,7 @@ xfs_log_mount( cmn_err(CE_WARN, "XFS: AIL initialisation failed: error %d", error); goto error; } + mp->m_log->l_ailp = mp->m_ail; /* * skip log recovery on a norecovery mount. pretend it all @@ -908,7 +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_ail_tail(mp->m_ail) + && !xfs_trans_ail_tail(log->l_ailp) && xlog_iclogs_empty(log)) { if (log->l_covered_state == XLOG_STATE_COVER_NEED) log->l_covered_state = XLOG_STATE_COVER_DONE; diff --git a/fs/xfs/xfs_log_priv.h b/fs/xfs/xfs_log_priv.h index e7d8f84443fa..de7ef6ca9206 100644 --- a/fs/xfs/xfs_log_priv.h +++ b/fs/xfs/xfs_log_priv.h @@ -404,6 +404,7 @@ typedef struct xlog_in_core { typedef struct log { /* The following fields don't need locking */ struct xfs_mount *l_mp; /* mount point */ + struct xfs_ail *l_ailp; /* AIL log is working with */ struct xfs_buf *l_xbuf; /* extra buffer for log * wrapping */ struct xfs_buftarg *l_targ; /* buftarg of log */ diff --git a/fs/xfs/xfs_log_recover.c b/fs/xfs/xfs_log_recover.c index a484febb9ec6..0bbde7b84fc9 100644 --- a/fs/xfs/xfs_log_recover.c +++ b/fs/xfs/xfs_log_recover.c @@ -2681,7 +2681,7 @@ xlog_recover_do_efi_trans( efip->efi_next_extent = efi_formatp->efi_nextents; efip->efi_flags |= XFS_EFI_COMMITTED; - spin_lock(&mp->m_ail->xa_lock); + spin_lock(&log->l_ailp->xa_lock); /* * xfs_trans_update_ail() drops the AIL lock. */ @@ -2710,6 +2710,7 @@ xlog_recover_do_efd_trans( xfs_log_item_t *lip; __uint64_t efi_id; struct xfs_ail_cursor cur; + struct xfs_ail *ailp; if (pass == XLOG_RECOVER_PASS1) { return; @@ -2727,8 +2728,9 @@ xlog_recover_do_efd_trans( * in the AIL. */ mp = log->l_mp; - spin_lock(&mp->m_ail->xa_lock); - lip = xfs_trans_ail_cursor_first(mp->m_ail, &cur, 0); + ailp = log->l_ailp; + spin_lock(&ailp->xa_lock); + lip = xfs_trans_ail_cursor_first(ailp, &cur, 0); while (lip != NULL) { if (lip->li_type == XFS_LI_EFI) { efip = (xfs_efi_log_item_t *)lip; @@ -2739,14 +2741,14 @@ xlog_recover_do_efd_trans( */ xfs_trans_delete_ail(mp, lip); xfs_efi_item_free(efip); - spin_lock(&mp->m_ail->xa_lock); + spin_lock(&ailp->xa_lock); break; } } - lip = xfs_trans_ail_cursor_next(mp->m_ail, &cur); + lip = xfs_trans_ail_cursor_next(ailp, &cur); } - xfs_trans_ail_cursor_done(mp->m_ail, &cur); - spin_unlock(&mp->m_ail->xa_lock); + xfs_trans_ail_cursor_done(ailp, &cur); + spin_unlock(&ailp->xa_lock); } /* @@ -3053,14 +3055,13 @@ xlog_recover_process_efis( { xfs_log_item_t *lip; xfs_efi_log_item_t *efip; - xfs_mount_t *mp; int error = 0; struct xfs_ail_cursor cur; + struct xfs_ail *ailp; - mp = log->l_mp; - spin_lock(&mp->m_ail->xa_lock); - - lip = xfs_trans_ail_cursor_first(mp->m_ail, &cur, 0); + ailp = log->l_ailp; + spin_lock(&ailp->xa_lock); + lip = xfs_trans_ail_cursor_first(ailp, &cur, 0); while (lip != NULL) { /* * We're done when we see something other than an EFI. @@ -3068,8 +3069,7 @@ xlog_recover_process_efis( */ if (lip->li_type != XFS_LI_EFI) { #ifdef DEBUG - for (; lip; - lip = xfs_trans_ail_cursor_next(mp->m_ail, &cur)) + for (; lip; lip = xfs_trans_ail_cursor_next(ailp, &cur)) ASSERT(lip->li_type != XFS_LI_EFI); #endif break; @@ -3080,20 +3080,20 @@ xlog_recover_process_efis( */ efip = (xfs_efi_log_item_t *)lip; if (efip->efi_flags & XFS_EFI_RECOVERED) { - lip = xfs_trans_ail_cursor_next(mp->m_ail, &cur); + lip = xfs_trans_ail_cursor_next(ailp, &cur); continue; } - spin_unlock(&mp->m_ail->xa_lock); - error = xlog_recover_process_efi(mp, efip); - spin_lock(&mp->m_ail->xa_lock); + spin_unlock(&ailp->xa_lock); + error = xlog_recover_process_efi(log->l_mp, efip); + spin_lock(&ailp->xa_lock); if (error) goto out; - lip = xfs_trans_ail_cursor_next(mp->m_ail, &cur); + lip = xfs_trans_ail_cursor_next(ailp, &cur); } out: - xfs_trans_ail_cursor_done(mp->m_ail, &cur); - spin_unlock(&mp->m_ail->xa_lock); + xfs_trans_ail_cursor_done(ailp, &cur); + spin_unlock(&ailp->xa_lock); return error; }