diff options
Diffstat (limited to 'fs/xfs/xfs_trans_extfree.c')
| -rw-r--r-- | fs/xfs/xfs_trans_extfree.c | 286 |
1 files changed, 0 insertions, 286 deletions
diff --git a/fs/xfs/xfs_trans_extfree.c b/fs/xfs/xfs_trans_extfree.c deleted file mode 100644 index 8ee7a3f8bb20..000000000000 --- a/fs/xfs/xfs_trans_extfree.c +++ /dev/null @@ -1,286 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0 -/* - * Copyright (c) 2000,2005 Silicon Graphics, Inc. - * All Rights Reserved. - */ -#include "xfs.h" -#include "xfs_fs.h" -#include "xfs_shared.h" -#include "xfs_format.h" -#include "xfs_log_format.h" -#include "xfs_trans_resv.h" -#include "xfs_bit.h" -#include "xfs_mount.h" -#include "xfs_defer.h" -#include "xfs_trans.h" -#include "xfs_trans_priv.h" -#include "xfs_extfree_item.h" -#include "xfs_alloc.h" -#include "xfs_bmap.h" -#include "xfs_trace.h" - -/* - * This routine is called to allocate an "extent free done" - * log item that will hold nextents worth of extents. The - * caller must use all nextents extents, because we are not - * flexible about this at all. - */ -struct xfs_efd_log_item * -xfs_trans_get_efd(struct xfs_trans *tp, - struct xfs_efi_log_item *efip, - uint nextents) -{ - struct xfs_efd_log_item *efdp; - - ASSERT(tp != NULL); - ASSERT(nextents > 0); - - efdp = xfs_efd_init(tp->t_mountp, efip, nextents); - ASSERT(efdp != NULL); - - /* - * Get a log_item_desc to point at the new item. - */ - xfs_trans_add_item(tp, &efdp->efd_item); - return efdp; -} - -/* - * Free an extent and log it to the EFD. Note that the transaction is marked - * dirty regardless of whether the extent free succeeds or fails to support the - * EFI/EFD lifecycle rules. - */ -int -xfs_trans_free_extent( - struct xfs_trans *tp, - struct xfs_efd_log_item *efdp, - xfs_fsblock_t start_block, - xfs_extlen_t ext_len, - const struct xfs_owner_info *oinfo, - bool skip_discard) -{ - struct xfs_mount *mp = tp->t_mountp; - struct xfs_extent *extp; - uint next_extent; - xfs_agnumber_t agno = XFS_FSB_TO_AGNO(mp, start_block); - xfs_agblock_t agbno = XFS_FSB_TO_AGBNO(mp, - start_block); - int error; - - trace_xfs_bmap_free_deferred(tp->t_mountp, agno, 0, agbno, ext_len); - - error = __xfs_free_extent(tp, start_block, ext_len, - oinfo, XFS_AG_RESV_NONE, skip_discard); - /* - * Mark the transaction dirty, even on error. This ensures the - * transaction is aborted, which: - * - * 1.) releases the EFI and frees the EFD - * 2.) shuts down the filesystem - */ - tp->t_flags |= XFS_TRANS_DIRTY; - set_bit(XFS_LI_DIRTY, &efdp->efd_item.li_flags); - - next_extent = efdp->efd_next_extent; - ASSERT(next_extent < efdp->efd_format.efd_nextents); - extp = &(efdp->efd_format.efd_extents[next_extent]); - extp->ext_start = start_block; - extp->ext_len = ext_len; - efdp->efd_next_extent++; - - return error; -} - -/* Sort bmap items by AG. */ -static int -xfs_extent_free_diff_items( - void *priv, - struct list_head *a, - struct list_head *b) -{ - struct xfs_mount *mp = priv; - struct xfs_extent_free_item *ra; - struct xfs_extent_free_item *rb; - - ra = container_of(a, struct xfs_extent_free_item, xefi_list); - rb = container_of(b, struct xfs_extent_free_item, xefi_list); - return XFS_FSB_TO_AGNO(mp, ra->xefi_startblock) - - XFS_FSB_TO_AGNO(mp, rb->xefi_startblock); -} - -/* Get an EFI. */ -STATIC void * -xfs_extent_free_create_intent( - struct xfs_trans *tp, - unsigned int count) -{ - struct xfs_efi_log_item *efip; - - ASSERT(tp != NULL); - ASSERT(count > 0); - - efip = xfs_efi_init(tp->t_mountp, count); - ASSERT(efip != NULL); - - /* - * Get a log_item_desc to point at the new item. - */ - xfs_trans_add_item(tp, &efip->efi_item); - return efip; -} - -/* Log a free extent to the intent item. */ -STATIC void -xfs_extent_free_log_item( - struct xfs_trans *tp, - void *intent, - struct list_head *item) -{ - struct xfs_efi_log_item *efip = intent; - struct xfs_extent_free_item *free; - uint next_extent; - struct xfs_extent *extp; - - free = container_of(item, struct xfs_extent_free_item, xefi_list); - - tp->t_flags |= XFS_TRANS_DIRTY; - set_bit(XFS_LI_DIRTY, &efip->efi_item.li_flags); - - /* - * atomic_inc_return gives us the value after the increment; - * we want to use it as an array index so we need to subtract 1 from - * it. - */ - next_extent = atomic_inc_return(&efip->efi_next_extent) - 1; - ASSERT(next_extent < efip->efi_format.efi_nextents); - extp = &efip->efi_format.efi_extents[next_extent]; - extp->ext_start = free->xefi_startblock; - extp->ext_len = free->xefi_blockcount; -} - -/* Get an EFD so we can process all the free extents. */ -STATIC void * -xfs_extent_free_create_done( - struct xfs_trans *tp, - void *intent, - unsigned int count) -{ - return xfs_trans_get_efd(tp, intent, count); -} - -/* Process a free extent. */ -STATIC int -xfs_extent_free_finish_item( - struct xfs_trans *tp, - struct list_head *item, - void *done_item, - void **state) -{ - struct xfs_extent_free_item *free; - int error; - - free = container_of(item, struct xfs_extent_free_item, xefi_list); - error = xfs_trans_free_extent(tp, done_item, - free->xefi_startblock, - free->xefi_blockcount, - &free->xefi_oinfo, free->xefi_skip_discard); - kmem_free(free); - return error; -} - -/* Abort all pending EFIs. */ -STATIC void -xfs_extent_free_abort_intent( - void *intent) -{ - xfs_efi_release(intent); -} - -/* Cancel a free extent. */ -STATIC void -xfs_extent_free_cancel_item( - struct list_head *item) -{ - struct xfs_extent_free_item *free; - - free = container_of(item, struct xfs_extent_free_item, xefi_list); - kmem_free(free); -} - -const struct xfs_defer_op_type xfs_extent_free_defer_type = { - .max_items = XFS_EFI_MAX_FAST_EXTENTS, - .diff_items = xfs_extent_free_diff_items, - .create_intent = xfs_extent_free_create_intent, - .abort_intent = xfs_extent_free_abort_intent, - .log_item = xfs_extent_free_log_item, - .create_done = xfs_extent_free_create_done, - .finish_item = xfs_extent_free_finish_item, - .cancel_item = xfs_extent_free_cancel_item, -}; - -/* - * AGFL blocks are accounted differently in the reserve pools and are not - * inserted into the busy extent list. - */ -STATIC int -xfs_agfl_free_finish_item( - struct xfs_trans *tp, - struct list_head *item, - void *done_item, - void **state) -{ - struct xfs_mount *mp = tp->t_mountp; - struct xfs_efd_log_item *efdp = done_item; - struct xfs_extent_free_item *free; - struct xfs_extent *extp; - struct xfs_buf *agbp; - int error; - xfs_agnumber_t agno; - xfs_agblock_t agbno; - uint next_extent; - - free = container_of(item, struct xfs_extent_free_item, xefi_list); - ASSERT(free->xefi_blockcount == 1); - agno = XFS_FSB_TO_AGNO(mp, free->xefi_startblock); - agbno = XFS_FSB_TO_AGBNO(mp, free->xefi_startblock); - - trace_xfs_agfl_free_deferred(mp, agno, 0, agbno, free->xefi_blockcount); - - error = xfs_alloc_read_agf(mp, tp, agno, 0, &agbp); - if (!error) - error = xfs_free_agfl_block(tp, agno, agbno, agbp, - &free->xefi_oinfo); - - /* - * Mark the transaction dirty, even on error. This ensures the - * transaction is aborted, which: - * - * 1.) releases the EFI and frees the EFD - * 2.) shuts down the filesystem - */ - tp->t_flags |= XFS_TRANS_DIRTY; - set_bit(XFS_LI_DIRTY, &efdp->efd_item.li_flags); - - next_extent = efdp->efd_next_extent; - ASSERT(next_extent < efdp->efd_format.efd_nextents); - extp = &(efdp->efd_format.efd_extents[next_extent]); - extp->ext_start = free->xefi_startblock; - extp->ext_len = free->xefi_blockcount; - efdp->efd_next_extent++; - - kmem_free(free); - return error; -} - - -/* sub-type with special handling for AGFL deferred frees */ -const struct xfs_defer_op_type xfs_agfl_free_defer_type = { - .max_items = XFS_EFI_MAX_FAST_EXTENTS, - .diff_items = xfs_extent_free_diff_items, - .create_intent = xfs_extent_free_create_intent, - .abort_intent = xfs_extent_free_abort_intent, - .log_item = xfs_extent_free_log_item, - .create_done = xfs_extent_free_create_done, - .finish_item = xfs_agfl_free_finish_item, - .cancel_item = xfs_extent_free_cancel_item, -}; |