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xfs: refactor log recovery EFI item dispatch for pass2 commit functions
Move the extent free intent and intent-done pass2 commit code into the per-item source code files and use dispatch functions to call them. We do these one at a time because there's a lot of code to move. No functional changes. Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com> Reviewed-by: Chandan Babu R <chandanrlinux@gmail.com> Reviewed-by: Christoph Hellwig <hch@lst.de>
This commit is contained in:
Darrick J. Wong
parent
3ec6efa703
commit
9817aa80dc
@ -22,6 +22,7 @@
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#include "xfs_bmap.h"
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#include "xfs_trace.h"
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#include "xfs_error.h"
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#include "xfs_log_priv.h"
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#include "xfs_log_recover.h"
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kmem_zone_t *xfs_efi_zone;
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@ -32,7 +33,7 @@ static inline struct xfs_efi_log_item *EFI_ITEM(struct xfs_log_item *lip)
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return container_of(lip, struct xfs_efi_log_item, efi_item);
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}
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void
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STATIC void
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xfs_efi_item_free(
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struct xfs_efi_log_item *efip)
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{
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@ -151,7 +152,7 @@ static const struct xfs_item_ops xfs_efi_item_ops = {
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/*
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* Allocate and initialize an efi item with the given number of extents.
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*/
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struct xfs_efi_log_item *
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STATIC struct xfs_efi_log_item *
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xfs_efi_init(
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struct xfs_mount *mp,
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uint nextents)
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@ -185,7 +186,7 @@ xfs_efi_init(
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* one of which will be the native format for this kernel.
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* It will handle the conversion of formats if necessary.
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*/
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int
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STATIC int
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xfs_efi_copy_format(xfs_log_iovec_t *buf, xfs_efi_log_format_t *dst_efi_fmt)
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{
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xfs_efi_log_format_t *src_efi_fmt = buf->i_addr;
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@ -646,10 +647,110 @@ abort_error:
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return error;
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}
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/*
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* This routine is called to create an in-core extent free intent
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* item from the efi format structure which was logged on disk.
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* It allocates an in-core efi, copies the extents from the format
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* structure into it, and adds the efi to the AIL with the given
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* LSN.
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*/
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STATIC int
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xlog_recover_efi_commit_pass2(
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struct xlog *log,
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struct list_head *buffer_list,
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struct xlog_recover_item *item,
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xfs_lsn_t lsn)
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{
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struct xfs_mount *mp = log->l_mp;
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struct xfs_efi_log_item *efip;
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struct xfs_efi_log_format *efi_formatp;
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int error;
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efi_formatp = item->ri_buf[0].i_addr;
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efip = xfs_efi_init(mp, efi_formatp->efi_nextents);
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error = xfs_efi_copy_format(&item->ri_buf[0], &efip->efi_format);
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if (error) {
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xfs_efi_item_free(efip);
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return error;
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}
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atomic_set(&efip->efi_next_extent, efi_formatp->efi_nextents);
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spin_lock(&log->l_ailp->ail_lock);
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/*
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* The EFI has two references. One for the EFD and one for EFI to ensure
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* it makes it into the AIL. Insert the EFI into the AIL directly and
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* drop the EFI reference. Note that xfs_trans_ail_update() drops the
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* AIL lock.
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*/
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xfs_trans_ail_update(log->l_ailp, &efip->efi_item, lsn);
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xfs_efi_release(efip);
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return 0;
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}
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const struct xlog_recover_item_ops xlog_efi_item_ops = {
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.item_type = XFS_LI_EFI,
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.commit_pass2 = xlog_recover_efi_commit_pass2,
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};
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/*
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* This routine is called when an EFD format structure is found in a committed
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* transaction in the log. Its purpose is to cancel the corresponding EFI if it
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* was still in the log. To do this it searches the AIL for the EFI with an id
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* equal to that in the EFD format structure. If we find it we drop the EFD
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* reference, which removes the EFI from the AIL and frees it.
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*/
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STATIC int
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xlog_recover_efd_commit_pass2(
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struct xlog *log,
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struct list_head *buffer_list,
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struct xlog_recover_item *item,
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xfs_lsn_t lsn)
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{
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struct xfs_ail_cursor cur;
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struct xfs_efd_log_format *efd_formatp;
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struct xfs_efi_log_item *efip = NULL;
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struct xfs_log_item *lip;
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struct xfs_ail *ailp = log->l_ailp;
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uint64_t efi_id;
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efd_formatp = item->ri_buf[0].i_addr;
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ASSERT((item->ri_buf[0].i_len == (sizeof(xfs_efd_log_format_32_t) +
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((efd_formatp->efd_nextents - 1) * sizeof(xfs_extent_32_t)))) ||
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(item->ri_buf[0].i_len == (sizeof(xfs_efd_log_format_64_t) +
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((efd_formatp->efd_nextents - 1) * sizeof(xfs_extent_64_t)))));
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efi_id = efd_formatp->efd_efi_id;
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/*
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* Search for the EFI with the id in the EFD format structure in the
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* AIL.
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*/
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spin_lock(&ailp->ail_lock);
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lip = xfs_trans_ail_cursor_first(ailp, &cur, 0);
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while (lip != NULL) {
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if (lip->li_type == XFS_LI_EFI) {
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efip = (struct xfs_efi_log_item *)lip;
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if (efip->efi_format.efi_id == efi_id) {
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/*
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* Drop the EFD reference to the EFI. This
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* removes the EFI from the AIL and frees it.
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*/
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spin_unlock(&ailp->ail_lock);
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xfs_efi_release(efip);
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spin_lock(&ailp->ail_lock);
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break;
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}
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}
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lip = xfs_trans_ail_cursor_next(ailp, &cur);
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}
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xfs_trans_ail_cursor_done(&cur);
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spin_unlock(&ailp->ail_lock);
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return 0;
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}
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const struct xlog_recover_item_ops xlog_efd_item_ops = {
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.item_type = XFS_LI_EFD,
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.commit_pass2 = xlog_recover_efd_commit_pass2,
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};
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@ -78,10 +78,6 @@ struct xfs_efd_log_item {
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extern struct kmem_zone *xfs_efi_zone;
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extern struct kmem_zone *xfs_efd_zone;
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struct xfs_efi_log_item *xfs_efi_init(struct xfs_mount *, uint);
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int xfs_efi_copy_format(xfs_log_iovec_t *buf,
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xfs_efi_log_format_t *dst_efi_fmt);
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void xfs_efi_item_free(struct xfs_efi_log_item *);
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void xfs_efi_release(struct xfs_efi_log_item *);
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int xfs_efi_recover(struct xfs_mount *mp,
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@ -2034,102 +2034,6 @@ xlog_buf_readahead(
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xfs_buf_readahead(log->l_mp->m_ddev_targp, blkno, len, ops);
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}
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/*
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* This routine is called to create an in-core extent free intent
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* item from the efi format structure which was logged on disk.
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* It allocates an in-core efi, copies the extents from the format
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* structure into it, and adds the efi to the AIL with the given
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* LSN.
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*/
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STATIC int
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xlog_recover_efi_pass2(
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struct xlog *log,
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struct xlog_recover_item *item,
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xfs_lsn_t lsn)
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{
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int error;
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struct xfs_mount *mp = log->l_mp;
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struct xfs_efi_log_item *efip;
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struct xfs_efi_log_format *efi_formatp;
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efi_formatp = item->ri_buf[0].i_addr;
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efip = xfs_efi_init(mp, efi_formatp->efi_nextents);
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error = xfs_efi_copy_format(&item->ri_buf[0], &efip->efi_format);
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if (error) {
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xfs_efi_item_free(efip);
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return error;
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}
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atomic_set(&efip->efi_next_extent, efi_formatp->efi_nextents);
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spin_lock(&log->l_ailp->ail_lock);
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/*
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* The EFI has two references. One for the EFD and one for EFI to ensure
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* it makes it into the AIL. Insert the EFI into the AIL directly and
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* drop the EFI reference. Note that xfs_trans_ail_update() drops the
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* AIL lock.
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*/
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xfs_trans_ail_update(log->l_ailp, &efip->efi_item, lsn);
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xfs_efi_release(efip);
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return 0;
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}
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/*
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* This routine is called when an EFD format structure is found in a committed
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* transaction in the log. Its purpose is to cancel the corresponding EFI if it
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* was still in the log. To do this it searches the AIL for the EFI with an id
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* equal to that in the EFD format structure. If we find it we drop the EFD
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* reference, which removes the EFI from the AIL and frees it.
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*/
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STATIC int
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xlog_recover_efd_pass2(
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struct xlog *log,
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struct xlog_recover_item *item)
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{
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xfs_efd_log_format_t *efd_formatp;
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struct xfs_efi_log_item *efip = NULL;
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struct xfs_log_item *lip;
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uint64_t efi_id;
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struct xfs_ail_cursor cur;
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struct xfs_ail *ailp = log->l_ailp;
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efd_formatp = item->ri_buf[0].i_addr;
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ASSERT((item->ri_buf[0].i_len == (sizeof(xfs_efd_log_format_32_t) +
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((efd_formatp->efd_nextents - 1) * sizeof(xfs_extent_32_t)))) ||
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(item->ri_buf[0].i_len == (sizeof(xfs_efd_log_format_64_t) +
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((efd_formatp->efd_nextents - 1) * sizeof(xfs_extent_64_t)))));
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efi_id = efd_formatp->efd_efi_id;
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/*
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* Search for the EFI with the id in the EFD format structure in the
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* AIL.
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*/
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spin_lock(&ailp->ail_lock);
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lip = xfs_trans_ail_cursor_first(ailp, &cur, 0);
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while (lip != NULL) {
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if (lip->li_type == XFS_LI_EFI) {
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efip = (struct xfs_efi_log_item *)lip;
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if (efip->efi_format.efi_id == efi_id) {
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/*
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* Drop the EFD reference to the EFI. This
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* removes the EFI from the AIL and frees it.
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*/
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spin_unlock(&ailp->ail_lock);
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xfs_efi_release(efip);
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spin_lock(&ailp->ail_lock);
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break;
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}
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}
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lip = xfs_trans_ail_cursor_next(ailp, &cur);
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}
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xfs_trans_ail_cursor_done(&cur);
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spin_unlock(&ailp->ail_lock);
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return 0;
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}
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/*
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* This routine is called to create an in-core extent rmap update
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* item from the rui format structure which was logged on disk.
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@ -2481,10 +2385,6 @@ xlog_recover_commit_pass2(
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trans->r_lsn);
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switch (ITEM_TYPE(item)) {
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case XFS_LI_EFI:
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return xlog_recover_efi_pass2(log, item, trans->r_lsn);
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case XFS_LI_EFD:
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return xlog_recover_efd_pass2(log, item);
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case XFS_LI_RUI:
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return xlog_recover_rui_pass2(log, item, trans->r_lsn);
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case XFS_LI_RUD:
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