diff options
| -rw-r--r-- | fs/xfs/quota/xfs_dquot_item.c | 33 | ||||
| -rw-r--r-- | fs/xfs/xfs_buf_item.c | 74 | ||||
| -rw-r--r-- | fs/xfs/xfs_extfree_item.c | 49 | ||||
| -rw-r--r-- | fs/xfs/xfs_inode_item.c | 17 | ||||
| -rw-r--r-- | fs/xfs/xfs_trans.c | 4 | ||||
| -rw-r--r-- | fs/xfs/xfs_trans.h | 6 |
6 files changed, 47 insertions, 136 deletions
diff --git a/fs/xfs/quota/xfs_dquot_item.c b/fs/xfs/quota/xfs_dquot_item.c index fb7054c1539..fa2b6744937 100644 --- a/fs/xfs/quota/xfs_dquot_item.c +++ b/fs/xfs/quota/xfs_dquot_item.c @@ -97,7 +97,8 @@ xfs_qm_dquot_logitem_pin( /* ARGSUSED */ STATIC void xfs_qm_dquot_logitem_unpin( - xfs_dq_logitem_t *logitem) + xfs_dq_logitem_t *logitem, + int remove) { xfs_dquot_t *dqp = logitem->qli_dquot; @@ -106,15 +107,6 @@ xfs_qm_dquot_logitem_unpin( wake_up(&dqp->q_pinwait); } -/* ARGSUSED */ -STATIC void -xfs_qm_dquot_logitem_unpin_remove( - xfs_dq_logitem_t *logitem, - xfs_trans_t *tp) -{ - xfs_qm_dquot_logitem_unpin(logitem); -} - /* * Given the logitem, this writes the corresponding dquot entry to disk * asynchronously. This is called with the dquot entry securely locked; @@ -318,9 +310,7 @@ static struct xfs_item_ops xfs_dquot_item_ops = { .iop_format = (void(*)(xfs_log_item_t*, xfs_log_iovec_t*)) xfs_qm_dquot_logitem_format, .iop_pin = (void(*)(xfs_log_item_t*))xfs_qm_dquot_logitem_pin, - .iop_unpin = (void(*)(xfs_log_item_t*))xfs_qm_dquot_logitem_unpin, - .iop_unpin_remove = (void(*)(xfs_log_item_t*, xfs_trans_t*)) - xfs_qm_dquot_logitem_unpin_remove, + .iop_unpin = (void(*)(xfs_log_item_t*, int))xfs_qm_dquot_logitem_unpin, .iop_trylock = (uint(*)(xfs_log_item_t*)) xfs_qm_dquot_logitem_trylock, .iop_unlock = (void(*)(xfs_log_item_t*))xfs_qm_dquot_logitem_unlock, @@ -413,14 +403,7 @@ xfs_qm_qoff_logitem_pin(xfs_qoff_logitem_t *qf) */ /*ARGSUSED*/ STATIC void -xfs_qm_qoff_logitem_unpin(xfs_qoff_logitem_t *qf) -{ - return; -} - -/*ARGSUSED*/ -STATIC void -xfs_qm_qoff_logitem_unpin_remove(xfs_qoff_logitem_t *qf, xfs_trans_t *tp) +xfs_qm_qoff_logitem_unpin(xfs_qoff_logitem_t *qf, int remove) { return; } @@ -524,9 +507,7 @@ static struct xfs_item_ops xfs_qm_qoffend_logitem_ops = { .iop_format = (void(*)(xfs_log_item_t*, xfs_log_iovec_t*)) xfs_qm_qoff_logitem_format, .iop_pin = (void(*)(xfs_log_item_t*))xfs_qm_qoff_logitem_pin, - .iop_unpin = (void(*)(xfs_log_item_t*))xfs_qm_qoff_logitem_unpin, - .iop_unpin_remove = (void(*)(xfs_log_item_t*,xfs_trans_t*)) - xfs_qm_qoff_logitem_unpin_remove, + .iop_unpin = (void(*)(xfs_log_item_t*, int))xfs_qm_qoff_logitem_unpin, .iop_trylock = (uint(*)(xfs_log_item_t*))xfs_qm_qoff_logitem_trylock, .iop_unlock = (void(*)(xfs_log_item_t*))xfs_qm_qoff_logitem_unlock, .iop_committed = (xfs_lsn_t(*)(xfs_log_item_t*, xfs_lsn_t)) @@ -545,9 +526,7 @@ static struct xfs_item_ops xfs_qm_qoff_logitem_ops = { .iop_format = (void(*)(xfs_log_item_t*, xfs_log_iovec_t*)) xfs_qm_qoff_logitem_format, .iop_pin = (void(*)(xfs_log_item_t*))xfs_qm_qoff_logitem_pin, - .iop_unpin = (void(*)(xfs_log_item_t*))xfs_qm_qoff_logitem_unpin, - .iop_unpin_remove = (void(*)(xfs_log_item_t*,xfs_trans_t*)) - xfs_qm_qoff_logitem_unpin_remove, + .iop_unpin = (void(*)(xfs_log_item_t*, int))xfs_qm_qoff_logitem_unpin, .iop_trylock = (uint(*)(xfs_log_item_t*))xfs_qm_qoff_logitem_trylock, .iop_unlock = (void(*)(xfs_log_item_t*))xfs_qm_qoff_logitem_unlock, .iop_committed = (xfs_lsn_t(*)(xfs_log_item_t*, xfs_lsn_t)) diff --git a/fs/xfs/xfs_buf_item.c b/fs/xfs/xfs_buf_item.c index 711f69abbbe..93899953c60 100644 --- a/fs/xfs/xfs_buf_item.c +++ b/fs/xfs/xfs_buf_item.c @@ -388,20 +388,25 @@ xfs_buf_item_pin( * Also drop the reference to the buf item for the current transaction. * If the XFS_BLI_STALE flag is set and we are the last reference, * then free up the buf log item and unlock the buffer. + * + * If the remove flag is set we are called from uncommit in the + * forced-shutdown path. If that is true and the reference count on + * the log item is going to drop to zero we need to free the item's + * descriptor in the transaction. */ STATIC void xfs_buf_item_unpin( - xfs_buf_log_item_t *bip) + xfs_buf_log_item_t *bip, + int remove) { struct xfs_ail *ailp; - xfs_buf_t *bp; + xfs_buf_t *bp = bip->bli_buf; int freed; int stale = bip->bli_flags & XFS_BLI_STALE; - bp = bip->bli_buf; - ASSERT(bp != NULL); ASSERT(XFS_BUF_FSPRIVATE(bp, xfs_buf_log_item_t *) == bip); ASSERT(atomic_read(&bip->bli_refcount) > 0); + trace_xfs_buf_item_unpin(bip); freed = atomic_dec_and_test(&bip->bli_refcount); @@ -413,8 +418,26 @@ xfs_buf_item_unpin( ASSERT(!(XFS_BUF_ISDELAYWRITE(bp))); ASSERT(XFS_BUF_ISSTALE(bp)); ASSERT(bip->bli_format.blf_flags & XFS_BLF_CANCEL); + trace_xfs_buf_item_unpin_stale(bip); + if (remove) { + /* + * We have to remove the log item from the transaction + * as we are about to release our reference to the + * buffer. If we don't, the unlock that occurs later + * in xfs_trans_uncommit() will ry to reference the + * buffer which we no longer have a hold on. + */ + xfs_trans_del_item(&bip->bli_item); + + /* + * Since the transaction no longer refers to the buffer, + * the buffer should no longer refer to the transaction. + */ + XFS_BUF_SET_FSPRIVATE2(bp, NULL); + } + /* * If we get called here because of an IO error, we may * or may not have the item on the AIL. xfs_trans_ail_delete() @@ -436,45 +459,6 @@ xfs_buf_item_unpin( } /* - * this is called from uncommit in the forced-shutdown path. - * we need to check to see if the reference count on the log item - * is going to drop to zero. If so, unpin will free the log item - * so we need to free the item's descriptor (that points to the item) - * in the transaction. - */ -STATIC void -xfs_buf_item_unpin_remove( - xfs_buf_log_item_t *bip, - xfs_trans_t *tp) -{ - /* will xfs_buf_item_unpin() call xfs_buf_item_relse()? */ - if ((atomic_read(&bip->bli_refcount) == 1) && - (bip->bli_flags & XFS_BLI_STALE)) { - /* - * yes -- We can safely do some work here and then call - * buf_item_unpin to do the rest because we are - * are holding the buffer locked so no one else will be - * able to bump up the refcount. We have to remove the - * log item from the transaction as we are about to release - * our reference to the buffer. If we don't, the unlock that - * occurs later in the xfs_trans_uncommit() will try to - * reference the buffer which we no longer have a hold on. - */ - ASSERT(XFS_BUF_VALUSEMA(bip->bli_buf) <= 0); - trace_xfs_buf_item_unpin_stale(bip); - - xfs_trans_del_item(&bip->bli_item); - - /* - * Since the transaction no longer refers to the buffer, the - * buffer should no longer refer to the transaction. - */ - XFS_BUF_SET_FSPRIVATE2(bip->bli_buf, NULL); - } - xfs_buf_item_unpin(bip); -} - -/* * This is called to attempt to lock the buffer associated with this * buf log item. Don't sleep on the buffer lock. If we can't get * the lock right away, return 0. If we can get the lock, take a @@ -669,9 +653,7 @@ static struct xfs_item_ops xfs_buf_item_ops = { .iop_format = (void(*)(xfs_log_item_t*, xfs_log_iovec_t*)) xfs_buf_item_format, .iop_pin = (void(*)(xfs_log_item_t*))xfs_buf_item_pin, - .iop_unpin = (void(*)(xfs_log_item_t*))xfs_buf_item_unpin, - .iop_unpin_remove = (void(*)(xfs_log_item_t*, xfs_trans_t *)) - xfs_buf_item_unpin_remove, + .iop_unpin = (void(*)(xfs_log_item_t*, int))xfs_buf_item_unpin, .iop_trylock = (uint(*)(xfs_log_item_t*))xfs_buf_item_trylock, .iop_unlock = (void(*)(xfs_log_item_t*))xfs_buf_item_unlock, .iop_committed = (xfs_lsn_t(*)(xfs_log_item_t*, xfs_lsn_t)) diff --git a/fs/xfs/xfs_extfree_item.c b/fs/xfs/xfs_extfree_item.c index 8d0e543ca3c..6ac7e596c54 100644 --- a/fs/xfs/xfs_extfree_item.c +++ b/fs/xfs/xfs_extfree_item.c @@ -103,32 +103,8 @@ xfs_efi_item_pin(xfs_efi_log_item_t *efip) * Here we coordinate with xfs_efi_cancel() to determine who gets to * free the EFI. */ -/*ARGSUSED*/ -STATIC void -xfs_efi_item_unpin(xfs_efi_log_item_t *efip) -{ - struct xfs_ail *ailp = efip->efi_item.li_ailp; - - spin_lock(&ailp->xa_lock); - if (efip->efi_flags & XFS_EFI_CANCELED) { - /* 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; - spin_unlock(&ailp->xa_lock); - } -} - -/* - * like unpin only we have to also clear the xaction descriptor - * pointing the log item if we free the item. This routine duplicates - * unpin because efi_flags is protected by the AIL lock. Freeing - * the descriptor and then calling unpin would force us to drop the AIL - * lock which would open up a race condition. - */ STATIC void -xfs_efi_item_unpin_remove(xfs_efi_log_item_t *efip, xfs_trans_t *tp) +xfs_efi_item_unpin(xfs_efi_log_item_t *efip, int remove) { struct xfs_ail *ailp = efip->efi_item.li_ailp; @@ -136,10 +112,8 @@ xfs_efi_item_unpin_remove(xfs_efi_log_item_t *efip, xfs_trans_t *tp) if (efip->efi_flags & XFS_EFI_CANCELED) { struct xfs_log_item *lip = &efip->efi_item; - /* - * free the xaction descriptor pointing to this item - */ - xfs_trans_del_item(lip); + if (remove) + xfs_trans_del_item(lip); /* xfs_trans_ail_delete() drops the AIL lock. */ xfs_trans_ail_delete(ailp, lip); @@ -223,9 +197,7 @@ static struct xfs_item_ops xfs_efi_item_ops = { .iop_format = (void(*)(xfs_log_item_t*, xfs_log_iovec_t*)) xfs_efi_item_format, .iop_pin = (void(*)(xfs_log_item_t*))xfs_efi_item_pin, - .iop_unpin = (void(*)(xfs_log_item_t*))xfs_efi_item_unpin, - .iop_unpin_remove = (void(*)(xfs_log_item_t*, xfs_trans_t *)) - xfs_efi_item_unpin_remove, + .iop_unpin = (void(*)(xfs_log_item_t*, int))xfs_efi_item_unpin, .iop_trylock = (uint(*)(xfs_log_item_t*))xfs_efi_item_trylock, .iop_unlock = (void(*)(xfs_log_item_t*))xfs_efi_item_unlock, .iop_committed = (xfs_lsn_t(*)(xfs_log_item_t*, xfs_lsn_t)) @@ -424,14 +396,7 @@ xfs_efd_item_pin(xfs_efd_log_item_t *efdp) */ /*ARGSUSED*/ STATIC void -xfs_efd_item_unpin(xfs_efd_log_item_t *efdp) -{ - return; -} - -/*ARGSUSED*/ -STATIC void -xfs_efd_item_unpin_remove(xfs_efd_log_item_t *efdp, xfs_trans_t *tp) +xfs_efd_item_unpin(xfs_efd_log_item_t *efdp, int remove) { return; } @@ -514,9 +479,7 @@ static struct xfs_item_ops xfs_efd_item_ops = { .iop_format = (void(*)(xfs_log_item_t*, xfs_log_iovec_t*)) xfs_efd_item_format, .iop_pin = (void(*)(xfs_log_item_t*))xfs_efd_item_pin, - .iop_unpin = (void(*)(xfs_log_item_t*))xfs_efd_item_unpin, - .iop_unpin_remove = (void(*)(xfs_log_item_t*, xfs_trans_t*)) - xfs_efd_item_unpin_remove, + .iop_unpin = (void(*)(xfs_log_item_t*, int))xfs_efd_item_unpin, .iop_trylock = (uint(*)(xfs_log_item_t*))xfs_efd_item_trylock, .iop_unlock = (void(*)(xfs_log_item_t*))xfs_efd_item_unlock, .iop_committed = (xfs_lsn_t(*)(xfs_log_item_t*, xfs_lsn_t)) diff --git a/fs/xfs/xfs_inode_item.c b/fs/xfs/xfs_inode_item.c index 4b97d7754b8..a01990dbb94 100644 --- a/fs/xfs/xfs_inode_item.c +++ b/fs/xfs/xfs_inode_item.c @@ -544,10 +544,10 @@ xfs_inode_item_pin( * * Also wake up anyone in xfs_iunpin_wait() if the count goes to 0. */ -/* ARGSUSED */ STATIC void xfs_inode_item_unpin( - xfs_inode_log_item_t *iip) + xfs_inode_log_item_t *iip, + int remove) { struct xfs_inode *ip = iip->ili_inode; @@ -557,15 +557,6 @@ xfs_inode_item_unpin( wake_up(&ip->i_ipin_wait); } -/* ARGSUSED */ -STATIC void -xfs_inode_item_unpin_remove( - xfs_inode_log_item_t *iip, - xfs_trans_t *tp) -{ - xfs_inode_item_unpin(iip); -} - /* * This is called to attempt to lock the inode associated with this * inode log item, in preparation for the push routine which does the actual @@ -829,9 +820,7 @@ static struct xfs_item_ops xfs_inode_item_ops = { .iop_format = (void(*)(xfs_log_item_t*, xfs_log_iovec_t*)) xfs_inode_item_format, .iop_pin = (void(*)(xfs_log_item_t*))xfs_inode_item_pin, - .iop_unpin = (void(*)(xfs_log_item_t*))xfs_inode_item_unpin, - .iop_unpin_remove = (void(*)(xfs_log_item_t*, xfs_trans_t*)) - xfs_inode_item_unpin_remove, + .iop_unpin = (void(*)(xfs_log_item_t*, int))xfs_inode_item_unpin, .iop_trylock = (uint(*)(xfs_log_item_t*))xfs_inode_item_trylock, .iop_unlock = (void(*)(xfs_log_item_t*))xfs_inode_item_unlock, .iop_committed = (xfs_lsn_t(*)(xfs_log_item_t*, xfs_lsn_t)) diff --git a/fs/xfs/xfs_trans.c b/fs/xfs/xfs_trans.c index 9c41efccf72..213792e1ad0 100644 --- a/fs/xfs/xfs_trans.c +++ b/fs/xfs/xfs_trans.c @@ -1375,7 +1375,7 @@ xfs_trans_item_committed( * log item flags, if anyone else stales the buffer we do not want to * pay any attention to it. */ - IOP_UNPIN(lip); + IOP_UNPIN(lip, 0); } /* @@ -1422,7 +1422,7 @@ xfs_trans_uncommit( * Unpin all but those that aren't dirty. */ if (lidp->lid_flags & XFS_LID_DIRTY) - IOP_UNPIN_REMOVE(lidp->lid_item, tp); + IOP_UNPIN(lidp->lid_item, 1); } xfs_trans_unreserve_and_mod_sb(tp); diff --git a/fs/xfs/xfs_trans.h b/fs/xfs/xfs_trans.h index 0c903eb8bbe..37c0ce1ccd4 100644 --- a/fs/xfs/xfs_trans.h +++ b/fs/xfs/xfs_trans.h @@ -347,8 +347,7 @@ typedef struct xfs_item_ops { uint (*iop_size)(xfs_log_item_t *); void (*iop_format)(xfs_log_item_t *, struct xfs_log_iovec *); void (*iop_pin)(xfs_log_item_t *); - void (*iop_unpin)(xfs_log_item_t *); - void (*iop_unpin_remove)(xfs_log_item_t *, struct xfs_trans *); + void (*iop_unpin)(xfs_log_item_t *, int remove); uint (*iop_trylock)(xfs_log_item_t *); void (*iop_unlock)(xfs_log_item_t *); xfs_lsn_t (*iop_committed)(xfs_log_item_t *, xfs_lsn_t); @@ -360,8 +359,7 @@ typedef struct xfs_item_ops { #define IOP_SIZE(ip) (*(ip)->li_ops->iop_size)(ip) #define IOP_FORMAT(ip,vp) (*(ip)->li_ops->iop_format)(ip, vp) #define IOP_PIN(ip) (*(ip)->li_ops->iop_pin)(ip) -#define IOP_UNPIN(ip) (*(ip)->li_ops->iop_unpin)(ip) -#define IOP_UNPIN_REMOVE(ip,tp) (*(ip)->li_ops->iop_unpin_remove)(ip, tp) +#define IOP_UNPIN(ip, remove) (*(ip)->li_ops->iop_unpin)(ip, remove) #define IOP_TRYLOCK(ip) (*(ip)->li_ops->iop_trylock)(ip) #define IOP_UNLOCK(ip) (*(ip)->li_ops->iop_unlock)(ip) #define IOP_COMMITTED(ip, lsn) (*(ip)->li_ops->iop_committed)(ip, lsn) |