From: Christoph Hellwig Date: Sat, 29 Jun 2019 02:29:41 +0000 (-0700) Subject: xfs: merge xfs_trans_refcount.c into xfs_refcount_item.c X-Git-Tag: v5.4-rc1~517^2~51 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=effd5e96e7d576135fed303c0fe49af331f57030;p=platform%2Fkernel%2Flinux-rpi.git xfs: merge xfs_trans_refcount.c into xfs_refcount_item.c Keep all the refcount item related code together in one file. Signed-off-by: Christoph Hellwig Reviewed-by: Brian Foster Reviewed-by: Darrick J. Wong Signed-off-by: Darrick J. Wong --- diff --git a/fs/xfs/Makefile b/fs/xfs/Makefile index ddaf774..de6f545 100644 --- a/fs/xfs/Makefile +++ b/fs/xfs/Makefile @@ -108,7 +108,6 @@ xfs-y += xfs_log.o \ xfs_trans_bmap.o \ xfs_trans_buf.o \ xfs_trans_inode.o \ - xfs_trans_refcount.o \ xfs_trans_rmap.o \ # optional features diff --git a/fs/xfs/xfs_refcount_item.c b/fs/xfs/xfs_refcount_item.c index fc2dfe9..e8a1387 100644 --- a/fs/xfs/xfs_refcount_item.c +++ b/fs/xfs/xfs_refcount_item.c @@ -217,7 +217,7 @@ static const struct xfs_item_ops xfs_cud_item_ops = { .iop_release = xfs_cud_item_release, }; -struct xfs_cud_log_item * +static struct xfs_cud_log_item * xfs_trans_get_cud( struct xfs_trans *tp, struct xfs_cui_log_item *cuip) @@ -235,6 +235,212 @@ xfs_trans_get_cud( } /* + * Finish an refcount update and log it to the CUD. Note that the + * transaction is marked dirty regardless of whether the refcount + * update succeeds or fails to support the CUI/CUD lifecycle rules. + */ +static int +xfs_trans_log_finish_refcount_update( + struct xfs_trans *tp, + struct xfs_cud_log_item *cudp, + enum xfs_refcount_intent_type type, + xfs_fsblock_t startblock, + xfs_extlen_t blockcount, + xfs_fsblock_t *new_fsb, + xfs_extlen_t *new_len, + struct xfs_btree_cur **pcur) +{ + int error; + + error = xfs_refcount_finish_one(tp, type, startblock, + blockcount, new_fsb, new_len, pcur); + + /* + * Mark the transaction dirty, even on error. This ensures the + * transaction is aborted, which: + * + * 1.) releases the CUI and frees the CUD + * 2.) shuts down the filesystem + */ + tp->t_flags |= XFS_TRANS_DIRTY; + set_bit(XFS_LI_DIRTY, &cudp->cud_item.li_flags); + + return error; +} + +/* Sort refcount intents by AG. */ +static int +xfs_refcount_update_diff_items( + void *priv, + struct list_head *a, + struct list_head *b) +{ + struct xfs_mount *mp = priv; + struct xfs_refcount_intent *ra; + struct xfs_refcount_intent *rb; + + ra = container_of(a, struct xfs_refcount_intent, ri_list); + rb = container_of(b, struct xfs_refcount_intent, ri_list); + return XFS_FSB_TO_AGNO(mp, ra->ri_startblock) - + XFS_FSB_TO_AGNO(mp, rb->ri_startblock); +} + +/* Get an CUI. */ +STATIC void * +xfs_refcount_update_create_intent( + struct xfs_trans *tp, + unsigned int count) +{ + struct xfs_cui_log_item *cuip; + + ASSERT(tp != NULL); + ASSERT(count > 0); + + cuip = xfs_cui_init(tp->t_mountp, count); + ASSERT(cuip != NULL); + + /* + * Get a log_item_desc to point at the new item. + */ + xfs_trans_add_item(tp, &cuip->cui_item); + return cuip; +} + +/* Set the phys extent flags for this reverse mapping. */ +static void +xfs_trans_set_refcount_flags( + struct xfs_phys_extent *refc, + enum xfs_refcount_intent_type type) +{ + refc->pe_flags = 0; + switch (type) { + case XFS_REFCOUNT_INCREASE: + case XFS_REFCOUNT_DECREASE: + case XFS_REFCOUNT_ALLOC_COW: + case XFS_REFCOUNT_FREE_COW: + refc->pe_flags |= type; + break; + default: + ASSERT(0); + } +} + +/* Log refcount updates in the intent item. */ +STATIC void +xfs_refcount_update_log_item( + struct xfs_trans *tp, + void *intent, + struct list_head *item) +{ + struct xfs_cui_log_item *cuip = intent; + struct xfs_refcount_intent *refc; + uint next_extent; + struct xfs_phys_extent *ext; + + refc = container_of(item, struct xfs_refcount_intent, ri_list); + + tp->t_flags |= XFS_TRANS_DIRTY; + set_bit(XFS_LI_DIRTY, &cuip->cui_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(&cuip->cui_next_extent) - 1; + ASSERT(next_extent < cuip->cui_format.cui_nextents); + ext = &cuip->cui_format.cui_extents[next_extent]; + ext->pe_startblock = refc->ri_startblock; + ext->pe_len = refc->ri_blockcount; + xfs_trans_set_refcount_flags(ext, refc->ri_type); +} + +/* Get an CUD so we can process all the deferred refcount updates. */ +STATIC void * +xfs_refcount_update_create_done( + struct xfs_trans *tp, + void *intent, + unsigned int count) +{ + return xfs_trans_get_cud(tp, intent); +} + +/* Process a deferred refcount update. */ +STATIC int +xfs_refcount_update_finish_item( + struct xfs_trans *tp, + struct list_head *item, + void *done_item, + void **state) +{ + struct xfs_refcount_intent *refc; + xfs_fsblock_t new_fsb; + xfs_extlen_t new_aglen; + int error; + + refc = container_of(item, struct xfs_refcount_intent, ri_list); + error = xfs_trans_log_finish_refcount_update(tp, done_item, + refc->ri_type, + refc->ri_startblock, + refc->ri_blockcount, + &new_fsb, &new_aglen, + (struct xfs_btree_cur **)state); + /* Did we run out of reservation? Requeue what we didn't finish. */ + if (!error && new_aglen > 0) { + ASSERT(refc->ri_type == XFS_REFCOUNT_INCREASE || + refc->ri_type == XFS_REFCOUNT_DECREASE); + refc->ri_startblock = new_fsb; + refc->ri_blockcount = new_aglen; + return -EAGAIN; + } + kmem_free(refc); + return error; +} + +/* Clean up after processing deferred refcounts. */ +STATIC void +xfs_refcount_update_finish_cleanup( + struct xfs_trans *tp, + void *state, + int error) +{ + struct xfs_btree_cur *rcur = state; + + xfs_refcount_finish_one_cleanup(tp, rcur, error); +} + +/* Abort all pending CUIs. */ +STATIC void +xfs_refcount_update_abort_intent( + void *intent) +{ + xfs_cui_release(intent); +} + +/* Cancel a deferred refcount update. */ +STATIC void +xfs_refcount_update_cancel_item( + struct list_head *item) +{ + struct xfs_refcount_intent *refc; + + refc = container_of(item, struct xfs_refcount_intent, ri_list); + kmem_free(refc); +} + +const struct xfs_defer_op_type xfs_refcount_update_defer_type = { + .max_items = XFS_CUI_MAX_FAST_EXTENTS, + .diff_items = xfs_refcount_update_diff_items, + .create_intent = xfs_refcount_update_create_intent, + .abort_intent = xfs_refcount_update_abort_intent, + .log_item = xfs_refcount_update_log_item, + .create_done = xfs_refcount_update_create_done, + .finish_item = xfs_refcount_update_finish_item, + .finish_cleanup = xfs_refcount_update_finish_cleanup, + .cancel_item = xfs_refcount_update_cancel_item, +}; + +/* * Process a refcount update intent item that was recovered from the log. * We need to update the refcountbt. */ diff --git a/fs/xfs/xfs_trans.h b/fs/xfs/xfs_trans.h index 019331d..bf0d1de 100644 --- a/fs/xfs/xfs_trans.h +++ b/fs/xfs/xfs_trans.h @@ -255,17 +255,6 @@ int xfs_trans_log_finish_rmap_update(struct xfs_trans *tp, xfs_fsblock_t startblock, xfs_filblks_t blockcount, xfs_exntst_t state, struct xfs_btree_cur **pcur); -/* refcount updates */ -enum xfs_refcount_intent_type; - -struct xfs_cud_log_item *xfs_trans_get_cud(struct xfs_trans *tp, - struct xfs_cui_log_item *cuip); -int xfs_trans_log_finish_refcount_update(struct xfs_trans *tp, - struct xfs_cud_log_item *cudp, - enum xfs_refcount_intent_type type, xfs_fsblock_t startblock, - xfs_extlen_t blockcount, xfs_fsblock_t *new_fsb, - xfs_extlen_t *new_len, struct xfs_btree_cur **pcur); - /* mapping updates */ enum xfs_bmap_intent_type; diff --git a/fs/xfs/xfs_trans_refcount.c b/fs/xfs/xfs_trans_refcount.c deleted file mode 100644 index d793fb5..0000000 --- a/fs/xfs/xfs_trans_refcount.c +++ /dev/null @@ -1,224 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0+ -/* - * Copyright (C) 2016 Oracle. All Rights Reserved. - * Author: Darrick J. Wong - */ -#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_mount.h" -#include "xfs_defer.h" -#include "xfs_trans.h" -#include "xfs_trans_priv.h" -#include "xfs_refcount_item.h" -#include "xfs_alloc.h" -#include "xfs_refcount.h" - -/* - * Finish an refcount update and log it to the CUD. Note that the - * transaction is marked dirty regardless of whether the refcount - * update succeeds or fails to support the CUI/CUD lifecycle rules. - */ -int -xfs_trans_log_finish_refcount_update( - struct xfs_trans *tp, - struct xfs_cud_log_item *cudp, - enum xfs_refcount_intent_type type, - xfs_fsblock_t startblock, - xfs_extlen_t blockcount, - xfs_fsblock_t *new_fsb, - xfs_extlen_t *new_len, - struct xfs_btree_cur **pcur) -{ - int error; - - error = xfs_refcount_finish_one(tp, type, startblock, - blockcount, new_fsb, new_len, pcur); - - /* - * Mark the transaction dirty, even on error. This ensures the - * transaction is aborted, which: - * - * 1.) releases the CUI and frees the CUD - * 2.) shuts down the filesystem - */ - tp->t_flags |= XFS_TRANS_DIRTY; - set_bit(XFS_LI_DIRTY, &cudp->cud_item.li_flags); - - return error; -} - -/* Sort refcount intents by AG. */ -static int -xfs_refcount_update_diff_items( - void *priv, - struct list_head *a, - struct list_head *b) -{ - struct xfs_mount *mp = priv; - struct xfs_refcount_intent *ra; - struct xfs_refcount_intent *rb; - - ra = container_of(a, struct xfs_refcount_intent, ri_list); - rb = container_of(b, struct xfs_refcount_intent, ri_list); - return XFS_FSB_TO_AGNO(mp, ra->ri_startblock) - - XFS_FSB_TO_AGNO(mp, rb->ri_startblock); -} - -/* Get an CUI. */ -STATIC void * -xfs_refcount_update_create_intent( - struct xfs_trans *tp, - unsigned int count) -{ - struct xfs_cui_log_item *cuip; - - ASSERT(tp != NULL); - ASSERT(count > 0); - - cuip = xfs_cui_init(tp->t_mountp, count); - ASSERT(cuip != NULL); - - /* - * Get a log_item_desc to point at the new item. - */ - xfs_trans_add_item(tp, &cuip->cui_item); - return cuip; -} - -/* Set the phys extent flags for this reverse mapping. */ -static void -xfs_trans_set_refcount_flags( - struct xfs_phys_extent *refc, - enum xfs_refcount_intent_type type) -{ - refc->pe_flags = 0; - switch (type) { - case XFS_REFCOUNT_INCREASE: - case XFS_REFCOUNT_DECREASE: - case XFS_REFCOUNT_ALLOC_COW: - case XFS_REFCOUNT_FREE_COW: - refc->pe_flags |= type; - break; - default: - ASSERT(0); - } -} - -/* Log refcount updates in the intent item. */ -STATIC void -xfs_refcount_update_log_item( - struct xfs_trans *tp, - void *intent, - struct list_head *item) -{ - struct xfs_cui_log_item *cuip = intent; - struct xfs_refcount_intent *refc; - uint next_extent; - struct xfs_phys_extent *ext; - - refc = container_of(item, struct xfs_refcount_intent, ri_list); - - tp->t_flags |= XFS_TRANS_DIRTY; - set_bit(XFS_LI_DIRTY, &cuip->cui_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(&cuip->cui_next_extent) - 1; - ASSERT(next_extent < cuip->cui_format.cui_nextents); - ext = &cuip->cui_format.cui_extents[next_extent]; - ext->pe_startblock = refc->ri_startblock; - ext->pe_len = refc->ri_blockcount; - xfs_trans_set_refcount_flags(ext, refc->ri_type); -} - -/* Get an CUD so we can process all the deferred refcount updates. */ -STATIC void * -xfs_refcount_update_create_done( - struct xfs_trans *tp, - void *intent, - unsigned int count) -{ - return xfs_trans_get_cud(tp, intent); -} - -/* Process a deferred refcount update. */ -STATIC int -xfs_refcount_update_finish_item( - struct xfs_trans *tp, - struct list_head *item, - void *done_item, - void **state) -{ - struct xfs_refcount_intent *refc; - xfs_fsblock_t new_fsb; - xfs_extlen_t new_aglen; - int error; - - refc = container_of(item, struct xfs_refcount_intent, ri_list); - error = xfs_trans_log_finish_refcount_update(tp, done_item, - refc->ri_type, - refc->ri_startblock, - refc->ri_blockcount, - &new_fsb, &new_aglen, - (struct xfs_btree_cur **)state); - /* Did we run out of reservation? Requeue what we didn't finish. */ - if (!error && new_aglen > 0) { - ASSERT(refc->ri_type == XFS_REFCOUNT_INCREASE || - refc->ri_type == XFS_REFCOUNT_DECREASE); - refc->ri_startblock = new_fsb; - refc->ri_blockcount = new_aglen; - return -EAGAIN; - } - kmem_free(refc); - return error; -} - -/* Clean up after processing deferred refcounts. */ -STATIC void -xfs_refcount_update_finish_cleanup( - struct xfs_trans *tp, - void *state, - int error) -{ - struct xfs_btree_cur *rcur = state; - - xfs_refcount_finish_one_cleanup(tp, rcur, error); -} - -/* Abort all pending CUIs. */ -STATIC void -xfs_refcount_update_abort_intent( - void *intent) -{ - xfs_cui_release(intent); -} - -/* Cancel a deferred refcount update. */ -STATIC void -xfs_refcount_update_cancel_item( - struct list_head *item) -{ - struct xfs_refcount_intent *refc; - - refc = container_of(item, struct xfs_refcount_intent, ri_list); - kmem_free(refc); -} - -const struct xfs_defer_op_type xfs_refcount_update_defer_type = { - .max_items = XFS_CUI_MAX_FAST_EXTENTS, - .diff_items = xfs_refcount_update_diff_items, - .create_intent = xfs_refcount_update_create_intent, - .abort_intent = xfs_refcount_update_abort_intent, - .log_item = xfs_refcount_update_log_item, - .create_done = xfs_refcount_update_create_done, - .finish_item = xfs_refcount_update_finish_item, - .finish_cleanup = xfs_refcount_update_finish_cleanup, - .cancel_item = xfs_refcount_update_cancel_item, -};