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[XFS] Finish removing the mount pointer from the AIL API

Browse source 
Change all the remaining AIL API functions that are passed struct
xfs_mount pointers to pass pointers directly to the struct xfs_ail being
used. With this conversion, all external access to the AIL is via the
struct xfs_ail. Hence the operation and referencing of the AIL is almost
entirely independent of the xfs_mount that is using it - it is now much
more tightly tied to the log and the items it is tracking in the log than
it is tied to the xfs_mount.

SGI-PV: 988143

SGI-Modid: xfs-linux-melb:xfs-kern:32353a

Signed-off-by: David Chinner <david@fromorbit.com>
Signed-off-by: Lachlan McIlroy <lachlan@sgi.com>
Signed-off-by: Christoph Hellwig <hch@infradead.org>
This commit is contained in:
David Chinner 2008-10-30 17:39:58 +11:00 committed by Lachlan McIlroy
parent fc1829f34d
commit 783a2f656f
14 changed files with 91 additions and 119 deletions
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15
fs/xfs/quota/xfs_dquot.c
View file

@ -1319,8 +1319,10 @@ xfs_qm_dqflush_done(
xfs_dq_logitem_t *qip)
{
xfs_dquot_t *dqp;
struct xfs_ail *ailp;
dqp = qip->qli_dquot;
ailp = qip->qli_item.li_ailp;
/*
* We only want to pull the item from the AIL if its
@ -1333,15 +1335,12 @@ xfs_qm_dqflush_done(
if ((qip->qli_item.li_flags & XFS_LI_IN_AIL) &&
qip->qli_item.li_lsn == qip->qli_flush_lsn) {
spin_lock(&dqp->q_mount->m_ail->xa_lock);
/*
* xfs_trans_delete_ail() drops the AIL lock.
*/
/* xfs_trans_ail_delete() drops the AIL lock. */
spin_lock(&ailp->xa_lock);
if (qip->qli_item.li_lsn == qip->qli_flush_lsn)
xfs_trans_delete_ail(dqp->q_mount,
(xfs_log_item_t*)qip);
xfs_trans_ail_delete(ailp, (xfs_log_item_t*)qip);
else
spin_unlock(&dqp->q_mount->m_ail->xa_lock);
spin_unlock(&ailp->xa_lock);
}
/*
@ -1371,7 +1370,7 @@ xfs_dqunlock(
mutex_unlock(&(dqp->q_qlock));
if (dqp->q_logitem.qli_dquot == dqp) {
/* Once was dqp->q_mount, but might just have been cleared */
xfs_trans_unlocked_item(dqp->q_logitem.qli_item.li_mountp,
xfs_trans_unlocked_item(dqp->q_logitem.qli_item.li_ailp,
(xfs_log_item_t*)&(dqp->q_logitem));
}
}

8
fs/xfs/quota/xfs_dquot_item.c
View file

@ -553,14 +553,16 @@ xfs_qm_qoffend_logitem_committed(
xfs_lsn_t lsn)
{
xfs_qoff_logitem_t *qfs;
struct xfs_ail *ailp;
qfs = qfe->qql_start_lip;
spin_lock(&qfs->qql_item.li_mountp->m_ail->xa_lock);
ailp = qfs->qql_item.li_ailp;
spin_lock(&ailp->xa_lock);
/*
* Delete the qoff-start logitem from the AIL.
* xfs_trans_delete_ail() drops the AIL lock.
* xfs_trans_ail_delete() drops the AIL lock.
*/
xfs_trans_delete_ail(qfs->qql_item.li_mountp, (xfs_log_item_t *)qfs);
xfs_trans_ail_delete(ailp, (xfs_log_item_t *)qfs);
kmem_free(qfs);
kmem_free(qfe);
return (xfs_lsn_t)-1;

24
fs/xfs/xfs_buf_item.c
View file

@ -375,7 +375,7 @@ xfs_buf_item_unpin(
xfs_buf_log_item_t *bip,
int stale)
{
xfs_mount_t *mp;
struct xfs_ail *ailp;
xfs_buf_t *bp;
int freed;
@ -387,7 +387,7 @@ xfs_buf_item_unpin(
xfs_buftrace("XFS_UNPIN", bp);
freed = atomic_dec_and_test(&bip->bli_refcount);
mp = bip->bli_item.li_mountp;
ailp = bip->bli_item.li_ailp;
xfs_bunpin(bp);
if (freed && stale) {
ASSERT(bip->bli_flags & XFS_BLI_STALE);
@ -399,17 +399,17 @@ xfs_buf_item_unpin(
xfs_buftrace("XFS_UNPIN STALE", bp);
/*
* If we get called here because of an IO error, we may
* or may not have the item on the AIL. xfs_trans_delete_ail()
* or may not have the item on the AIL. xfs_trans_ail_delete()
* will take care of that situation.
* xfs_trans_delete_ail() drops the AIL lock.
* xfs_trans_ail_delete() drops the AIL lock.
*/
if (bip->bli_flags & XFS_BLI_STALE_INODE) {
xfs_buf_do_callbacks(bp, (xfs_log_item_t *)bip);
XFS_BUF_SET_FSPRIVATE(bp, NULL);
XFS_BUF_CLR_IODONE_FUNC(bp);
} else {
spin_lock(&mp->m_ail->xa_lock);
xfs_trans_delete_ail(mp, (xfs_log_item_t *)bip);
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);
}
@ -1123,29 +1123,23 @@ xfs_buf_iodone(
xfs_buf_t *bp,
xfs_buf_log_item_t *bip)
{
struct xfs_mount *mp;
struct xfs_ail *ailp;
struct xfs_ail *ailp = bip->bli_item.li_ailp;
ASSERT(bip->bli_buf == bp);
xfs_buf_rele(bp);
mp = bip->bli_item.li_mountp;
ailp = bip->bli_item.li_ailp;
/*
* If we are forcibly shutting down, this may well be
* off the AIL already. That's because we simulate the
* log-committed callbacks to unpin these buffers. Or we may never
* have put this item on AIL because of the transaction was
* aborted forcibly. xfs_trans_delete_ail() takes care of these.
* aborted forcibly. xfs_trans_ail_delete() takes care of these.
*
* Either way, AIL is useless if we're forcing a shutdown.
*/
spin_lock(&ailp->xa_lock);
/*
* xfs_trans_delete_ail() drops the AIL lock.
*/
xfs_trans_delete_ail(mp, (xfs_log_item_t *)bip);
xfs_trans_ail_delete(ailp, (xfs_log_item_t *)bip);
xfs_buf_item_free(bip);
}

35
fs/xfs/xfs_extfree_item.c
View file

@ -108,17 +108,12 @@ xfs_efi_item_pin(xfs_efi_log_item_t *efip)
STATIC void
xfs_efi_item_unpin(xfs_efi_log_item_t *efip, int stale)
{
xfs_mount_t *mp;
struct xfs_ail *ailp;
struct xfs_ail *ailp = efip->efi_item.li_ailp;
mp = efip->efi_item.li_mountp;
ailp = efip->efi_item.li_ailp;
spin_lock(&ailp->xa_lock);
if (efip->efi_flags & XFS_EFI_CANCELED) {
/*
* xfs_trans_delete_ail() drops the AIL lock.
*/
xfs_trans_delete_ail(mp, (xfs_log_item_t *)efip);
/* xfs_trans_ail_delete() drops the AIL lock. */
xfs_trans_ail_delete(ailp, (xfs_log_item_t *)efip);
xfs_efi_item_free(efip);
} else {
efip->efi_flags |= XFS_EFI_COMMITTED;
@ -136,12 +131,9 @@ xfs_efi_item_unpin(xfs_efi_log_item_t *efip, int stale)
STATIC void
xfs_efi_item_unpin_remove(xfs_efi_log_item_t *efip, xfs_trans_t *tp)
{
xfs_mount_t *mp;
struct xfs_ail *ailp;
struct xfs_ail *ailp = efip->efi_item.li_ailp;
xfs_log_item_desc_t *lidp;
mp = efip->efi_item.li_mountp;
ailp = efip->efi_item.li_ailp;
spin_lock(&ailp->xa_lock);
if (efip->efi_flags & XFS_EFI_CANCELED) {
/*
@ -149,11 +141,9 @@ xfs_efi_item_unpin_remove(xfs_efi_log_item_t *efip, xfs_trans_t *tp)
*/
lidp = xfs_trans_find_item(tp, (xfs_log_item_t *) efip);
xfs_trans_free_item(tp, lidp);
/*
* pull the item off the AIL.
* xfs_trans_delete_ail() drops the AIL lock.
*/
xfs_trans_delete_ail(mp, (xfs_log_item_t *)efip);
/* xfs_trans_ail_delete() drops the AIL lock. */
xfs_trans_ail_delete(ailp, (xfs_log_item_t *)efip);
xfs_efi_item_free(efip);
} else {
efip->efi_flags |= XFS_EFI_COMMITTED;
@ -350,12 +340,9 @@ void
xfs_efi_release(xfs_efi_log_item_t *efip,
uint nextents)
{
xfs_mount_t *mp;
struct xfs_ail *ailp;
struct xfs_ail *ailp = efip->efi_item.li_ailp;
int extents_left;
mp = efip->efi_item.li_mountp;
ailp = efip->efi_item.li_ailp;
ASSERT(efip->efi_next_extent > 0);
ASSERT(efip->efi_flags & XFS_EFI_COMMITTED);
@ -364,10 +351,8 @@ xfs_efi_release(xfs_efi_log_item_t *efip,
efip->efi_next_extent -= nextents;
extents_left = efip->efi_next_extent;
if (extents_left == 0) {
/*
* xfs_trans_delete_ail() drops the AIL lock.
*/
xfs_trans_delete_ail(mp, (xfs_log_item_t *)efip);
/* xfs_trans_ail_delete() drops the AIL lock. */
xfs_trans_ail_delete(ailp, (xfs_log_item_t *)efip);
xfs_efi_item_free(efip);
} else {
spin_unlock(&ailp->xa_lock);

4
fs/xfs/xfs_iget.c
View file

@ -38,6 +38,8 @@
#include "xfs_ialloc.h"
#include "xfs_quota.h"
#include "xfs_utils.h"
#include "xfs_trans_priv.h"
#include "xfs_inode_item.h"
/*
* Check the validity of the inode we just found it the cache
@ -616,7 +618,7 @@ xfs_iunlock(
* it is in the AIL and anyone is waiting on it. Don't do
* this if the caller has asked us not to.
*/
xfs_trans_unlocked_item(ip->i_mount,
xfs_trans_unlocked_item(ip->i_itemp->ili_item.li_ailp,
(xfs_log_item_t*)(ip->i_itemp));
}
xfs_ilock_trace(ip, 3, lock_flags, (inst_t *)__return_address);

8
fs/xfs/xfs_inode.c
View file

@ -2709,17 +2709,17 @@ xfs_idestroy(
* inode still in the AIL. If it is there, we should remove
* it to prevent a use-after-free from occurring.
*/
xfs_mount_t *mp = ip->i_mount;
xfs_log_item_t *lip = &ip->i_itemp->ili_item;
struct xfs_ail *ailp = lip->li_ailp;
ASSERT(((lip->li_flags & XFS_LI_IN_AIL) == 0) ||
XFS_FORCED_SHUTDOWN(ip->i_mount));
if (lip->li_flags & XFS_LI_IN_AIL) {
spin_lock(&mp->m_ail->xa_lock);
spin_lock(&ailp->xa_lock);
if (lip->li_flags & XFS_LI_IN_AIL)
xfs_trans_delete_ail(mp, lip);
xfs_trans_ail_delete(ailp, lip);
else
spin_unlock(&mp->m_ail->xa_lock);
spin_unlock(&ailp->xa_lock);
}
xfs_inode_item_destroy(ip);
ip->i_itemp = NULL;

29
fs/xfs/xfs_inode_item.c
View file

@ -977,9 +977,8 @@ xfs_iflush_done(
xfs_buf_t *bp,
xfs_inode_log_item_t *iip)
{
xfs_inode_t *ip;
ip = iip->ili_inode;
xfs_inode_t *ip = iip->ili_inode;
struct xfs_ail *ailp = iip->ili_item.li_ailp;
/*
* We only want to pull the item from the AIL if it is
@ -992,15 +991,12 @@ xfs_iflush_done(
*/
if (iip->ili_logged &&
(iip->ili_item.li_lsn == iip->ili_flush_lsn)) {
spin_lock(&ip->i_mount->m_ail->xa_lock);
spin_lock(&ailp->xa_lock);
if (iip->ili_item.li_lsn == iip->ili_flush_lsn) {
/*
* xfs_trans_delete_ail() drops the AIL lock.
*/
xfs_trans_delete_ail(ip->i_mount,
(xfs_log_item_t*)iip);
/* xfs_trans_ail_delete() drops the AIL lock. */
xfs_trans_ail_delete(ailp, (xfs_log_item_t*)iip);
} else {
spin_unlock(&ip->i_mount->m_ail->xa_lock);
spin_unlock(&ailp->xa_lock);
}
}
@ -1032,21 +1028,20 @@ void
xfs_iflush_abort(
xfs_inode_t *ip)
{
xfs_inode_log_item_t *iip;
xfs_inode_log_item_t *iip = ip->i_itemp;
xfs_mount_t *mp;
iip = ip->i_itemp;
mp = ip->i_mount;
if (iip) {
struct xfs_ail *ailp = iip->ili_item.li_ailp;
if (iip->ili_item.li_flags & XFS_LI_IN_AIL) {
spin_lock(&mp->m_ail->xa_lock);
spin_lock(&ailp->xa_lock);
if (iip->ili_item.li_flags & XFS_LI_IN_AIL) {
/*
* xfs_trans_delete_ail() drops the AIL lock.
*/
xfs_trans_delete_ail(mp, (xfs_log_item_t *)iip);
/* xfs_trans_ail_delete() drops the AIL lock. */
xfs_trans_ail_delete(ailp, (xfs_log_item_t *)iip);
} else
spin_unlock(&mp->m_ail->xa_lock);
spin_unlock(&ailp->xa_lock);
}
iip->ili_logged = 0;
/*

2
fs/xfs/xfs_log.c
View file

@ -1413,7 +1413,7 @@ xlog_grant_push_ail(xfs_mount_t *mp,
*/
if (threshold_lsn &&
!XLOG_FORCED_SHUTDOWN(log))
xfs_trans_push_ail(mp, threshold_lsn);
xfs_trans_ail_push(log->l_ailp, threshold_lsn);
} /* xlog_grant_push_ail */

13
fs/xfs/xfs_log_recover.c
View file

@ -2683,9 +2683,9 @@ xlog_recover_do_efi_trans(
spin_lock(&log->l_ailp->xa_lock);
/*
* xfs_trans_update_ail() drops the AIL lock.
* xfs_trans_ail_update() drops the AIL lock.
*/
xfs_trans_update_ail(mp, (xfs_log_item_t *)efip, lsn);
xfs_trans_ail_update(log->l_ailp, (xfs_log_item_t *)efip, lsn);
return 0;
}
@ -2704,13 +2704,12 @@ xlog_recover_do_efd_trans(
xlog_recover_item_t *item,
int pass)
{
xfs_mount_t *mp;
xfs_efd_log_format_t *efd_formatp;
xfs_efi_log_item_t *efip = NULL;
xfs_log_item_t *lip;
__uint64_t efi_id;
struct xfs_ail_cursor cur;
struct xfs_ail *ailp;
struct xfs_ail *ailp = log->l_ailp;
if (pass == XLOG_RECOVER_PASS1) {
return;
@ -2727,8 +2726,6 @@ xlog_recover_do_efd_trans(
* Search for the efi with the id in the efd format structure
* in the AIL.
*/
mp = log->l_mp;
ailp = log->l_ailp;
spin_lock(&ailp->xa_lock);
lip = xfs_trans_ail_cursor_first(ailp, &cur, 0);
while (lip != NULL) {
@ -2736,10 +2733,10 @@ xlog_recover_do_efd_trans(
efip = (xfs_efi_log_item_t *)lip;
if (efip->efi_format.efi_id == efi_id) {
/*
* xfs_trans_delete_ail() drops the
* xfs_trans_ail_delete() drops the
* AIL lock.
*/
xfs_trans_delete_ail(mp, lip);
xfs_trans_ail_delete(ailp, lip);
xfs_efi_item_free(efip);
spin_lock(&ailp->xa_lock);
break;

6
fs/xfs/xfs_trans.c
View file

@ -1387,7 +1387,6 @@ xfs_trans_chunk_committed(
lidp = licp->lic_descs;
for (i = 0; i < licp->lic_unused; i++, lidp++) {
struct xfs_mount *mp;
struct xfs_ail *ailp;
if (xfs_lic_isfree(licp, i)) {
@ -1426,7 +1425,6 @@ xfs_trans_chunk_committed(
* This would cause the earlier transaction to fail
* the test below.
*/
mp = lip->li_mountp;
ailp = lip->li_ailp;
spin_lock(&ailp->xa_lock);
if (XFS_LSN_CMP(item_lsn, lip->li_lsn) > 0) {
@ -1435,9 +1433,9 @@ xfs_trans_chunk_committed(
* and update the position of the item in
* the AIL.
*
* xfs_trans_update_ail() drops the AIL lock.
* xfs_trans_ail_update() drops the AIL lock.
*/
xfs_trans_update_ail(mp, lip, item_lsn);
xfs_trans_ail_update(ailp, lip, item_lsn);
} else {
spin_unlock(&ailp->xa_lock);
}

3
fs/xfs/xfs_trans.h
View file

@ -971,9 +971,6 @@ int _xfs_trans_commit(xfs_trans_t *,
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);
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,
xfs_agnumber_t ag,
xfs_extlen_t idx);

41
fs/xfs/xfs_trans_ail.c
View file

@ -86,16 +86,16 @@ xfs_trans_ail_tail(
* any of the objects, so the lock is not needed.
*/
void
xfs_trans_push_ail(
xfs_mount_t *mp,
xfs_lsn_t threshold_lsn)
xfs_trans_ail_push(
struct xfs_ail *ailp,
xfs_lsn_t threshold_lsn)
{
xfs_log_item_t *lip;
xfs_log_item_t *lip;
lip = xfs_ail_min(mp->m_ail);
if (lip && !XFS_FORCED_SHUTDOWN(mp)) {
if (XFS_LSN_CMP(threshold_lsn, mp->m_ail->xa_target) > 0)
xfsaild_wakeup(mp->m_ail, threshold_lsn);
lip = xfs_ail_min(ailp);
if (lip && !XFS_FORCED_SHUTDOWN(ailp->xa_mount)) {
if (XFS_LSN_CMP(threshold_lsn, ailp->xa_target) > 0)
xfsaild_wakeup(ailp, threshold_lsn);
}
}
@ -412,7 +412,7 @@ xfsaild_push(
*/
void
xfs_trans_unlocked_item(
xfs_mount_t *mp,
struct xfs_ail *ailp,
xfs_log_item_t *lip)
{
xfs_log_item_t *min_lip;
@ -424,7 +424,7 @@ xfs_trans_unlocked_item(
* over some potentially valid data.
*/
if (!(lip->li_flags & XFS_LI_IN_AIL) ||
XFS_FORCED_SHUTDOWN(mp)) {
XFS_FORCED_SHUTDOWN(ailp->xa_mount)) {
return;
}
@ -440,10 +440,10 @@ xfs_trans_unlocked_item(
* the call to xfs_log_move_tail() doesn't do anything if there's
* not enough free space to wake people up so we're safe calling it.
*/
min_lip = xfs_ail_min(mp->m_ail);
min_lip = xfs_ail_min(ailp);
if (min_lip == lip)
xfs_log_move_tail(mp, 1);
xfs_log_move_tail(ailp->xa_mount, 1);
} /* xfs_trans_unlocked_item */
@ -460,12 +460,11 @@ xfs_trans_unlocked_item(
* is dropped before returning.
*/
void
xfs_trans_update_ail(
xfs_mount_t *mp,
xfs_trans_ail_update(
struct xfs_ail *ailp,
xfs_log_item_t *lip,
xfs_lsn_t lsn) __releases(ailp->xa_lock)
{
struct xfs_ail *ailp = mp->m_ail;
xfs_log_item_t *dlip = NULL;
xfs_log_item_t *mlip; /* ptr to minimum lip */
@ -485,7 +484,7 @@ xfs_trans_update_ail(
if (mlip == dlip) {
mlip = xfs_ail_min(ailp);
spin_unlock(&ailp->xa_lock);
xfs_log_move_tail(mp, mlip->li_lsn);
xfs_log_move_tail(ailp->xa_mount, mlip->li_lsn);
} else {
spin_unlock(&ailp->xa_lock);
}
@ -509,11 +508,10 @@ xfs_trans_update_ail(
* is dropped before returning.
*/
void
xfs_trans_delete_ail(
xfs_mount_t *mp,
xfs_trans_ail_delete(
struct xfs_ail *ailp,
xfs_log_item_t *lip) __releases(ailp->xa_lock)
{
struct xfs_ail *ailp = mp->m_ail;
xfs_log_item_t *dlip;
xfs_log_item_t *mlip;
@ -530,7 +528,8 @@ xfs_trans_delete_ail(
if (mlip == dlip) {
mlip = xfs_ail_min(ailp);
spin_unlock(&ailp->xa_lock);
xfs_log_move_tail(mp, (mlip ? mlip->li_lsn : 0));
xfs_log_move_tail(ailp->xa_mount,
(mlip ? mlip->li_lsn : 0));
} else {
spin_unlock(&ailp->xa_lock);
}
@ -540,6 +539,8 @@ xfs_trans_delete_ail(
* If the file system is not being shutdown, we are in
* serious trouble if we get to this stage.
*/
struct xfs_mount *mp = ailp->xa_mount;
spin_unlock(&ailp->xa_lock);
if (!XFS_FORCED_SHUTDOWN(mp)) {
xfs_cmn_err(XFS_PTAG_AILDELETE, CE_ALERT, mp,

7
fs/xfs/xfs_trans_buf.c
View file

@ -527,9 +527,8 @@ xfs_trans_brelse(xfs_trans_t *tp,
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_mountp,
lip);
xfs_trans_unlocked_item(bip->bli_item.li_ailp,
lip);
}
}
xfs_buf_relse(bp);
@ -626,7 +625,7 @@ xfs_trans_brelse(xfs_trans_t *tp,
* tell the AIL that the buffer is being unlocked.
*/
if (bip != NULL) {
xfs_trans_unlocked_item(bip->bli_item.li_mountp,
xfs_trans_unlocked_item(bip->bli_item.li_ailp,
(xfs_log_item_t*)bip);
}

15
fs/xfs/xfs_trans_priv.h
View file

@ -85,12 +85,15 @@ struct xfs_ail {
/*
* From xfs_trans_ail.c
*/
void xfs_trans_update_ail(struct xfs_mount *mp,
struct xfs_log_item *lip, xfs_lsn_t lsn)
__releases(mp->m_ail_lock);
void xfs_trans_delete_ail(struct xfs_mount *mp,
struct xfs_log_item *lip)
__releases(mp->m_ail_lock);
void xfs_trans_ail_update(struct xfs_ail *ailp,
struct xfs_log_item *lip, xfs_lsn_t lsn)
__releases(ailp->xa_lock);
void xfs_trans_ail_delete(struct xfs_ail *ailp,
struct xfs_log_item *lip)
__releases(ailp->xa_lock);
void xfs_trans_ail_push(struct xfs_ail *, xfs_lsn_t);
void xfs_trans_unlocked_item(struct xfs_ail *,
xfs_log_item_t *);
xfs_lsn_t xfs_trans_ail_tail(struct xfs_ail *ailp);