diff options
Diffstat (limited to 'fs/xfs')
| -rw-r--r-- | fs/xfs/Makefile | 1 | ||||
| -rw-r--r-- | fs/xfs/libxfs/xfs_log_format.h | 64 | ||||
| -rw-r--r-- | fs/xfs/libxfs/xfs_rmap.h | 19 | ||||
| -rw-r--r-- | fs/xfs/xfs_rmap_item.c | 459 | ||||
| -rw-r--r-- | fs/xfs/xfs_rmap_item.h | 100 | ||||
| -rw-r--r-- | fs/xfs/xfs_super.c | 21 |
6 files changed, 662 insertions, 2 deletions
diff --git a/fs/xfs/Makefile b/fs/xfs/Makefile index b76e937f0729..6c9039384d34 100644 --- a/fs/xfs/Makefile +++ b/fs/xfs/Makefile @@ -103,6 +103,7 @@ xfs-y += xfs_log.o \ xfs_extfree_item.o \ xfs_icreate_item.o \ xfs_inode_item.o \ + xfs_rmap_item.o \ xfs_log_recover.o \ xfs_trans_ail.o \ xfs_trans_buf.o \ diff --git a/fs/xfs/libxfs/xfs_log_format.h b/fs/xfs/libxfs/xfs_log_format.h index e8f49c029ff0..a8d794d1ae9a 100644 --- a/fs/xfs/libxfs/xfs_log_format.h +++ b/fs/xfs/libxfs/xfs_log_format.h @@ -110,7 +110,9 @@ static inline uint xlog_get_cycle(char *ptr) #define XLOG_REG_TYPE_COMMIT 18 #define XLOG_REG_TYPE_TRANSHDR 19 #define XLOG_REG_TYPE_ICREATE 20 -#define XLOG_REG_TYPE_MAX 20 +#define XLOG_REG_TYPE_RUI_FORMAT 21 +#define XLOG_REG_TYPE_RUD_FORMAT 22 +#define XLOG_REG_TYPE_MAX 22 /* * Flags to log operation header @@ -227,6 +229,8 @@ typedef struct xfs_trans_header { #define XFS_LI_DQUOT 0x123d #define XFS_LI_QUOTAOFF 0x123e #define XFS_LI_ICREATE 0x123f +#define XFS_LI_RUI 0x1240 /* rmap update intent */ +#define XFS_LI_RUD 0x1241 #define XFS_LI_TYPE_DESC \ { XFS_LI_EFI, "XFS_LI_EFI" }, \ @@ -236,7 +240,9 @@ typedef struct xfs_trans_header { { XFS_LI_BUF, "XFS_LI_BUF" }, \ { XFS_LI_DQUOT, "XFS_LI_DQUOT" }, \ { XFS_LI_QUOTAOFF, "XFS_LI_QUOTAOFF" }, \ - { XFS_LI_ICREATE, "XFS_LI_ICREATE" } + { XFS_LI_ICREATE, "XFS_LI_ICREATE" }, \ + { XFS_LI_RUI, "XFS_LI_RUI" }, \ + { XFS_LI_RUD, "XFS_LI_RUD" } /* * Inode Log Item Format definitions. @@ -604,6 +610,60 @@ typedef struct xfs_efd_log_format_64 { } xfs_efd_log_format_64_t; /* + * RUI/RUD (reverse mapping) log format definitions + */ +struct xfs_map_extent { + __uint64_t me_owner; + __uint64_t me_startblock; + __uint64_t me_startoff; + __uint32_t me_len; + __uint32_t me_flags; +}; + +/* rmap me_flags: upper bits are flags, lower byte is type code */ +#define XFS_RMAP_EXTENT_MAP 1 +#define XFS_RMAP_EXTENT_UNMAP 3 +#define XFS_RMAP_EXTENT_CONVERT 5 +#define XFS_RMAP_EXTENT_ALLOC 7 +#define XFS_RMAP_EXTENT_FREE 8 +#define XFS_RMAP_EXTENT_TYPE_MASK 0xFF + +#define XFS_RMAP_EXTENT_ATTR_FORK (1U << 31) +#define XFS_RMAP_EXTENT_BMBT_BLOCK (1U << 30) +#define XFS_RMAP_EXTENT_UNWRITTEN (1U << 29) + +#define XFS_RMAP_EXTENT_FLAGS (XFS_RMAP_EXTENT_TYPE_MASK | \ + XFS_RMAP_EXTENT_ATTR_FORK | \ + XFS_RMAP_EXTENT_BMBT_BLOCK | \ + XFS_RMAP_EXTENT_UNWRITTEN) + +/* + * This is the structure used to lay out an rui log item in the + * log. The rui_extents field is a variable size array whose + * size is given by rui_nextents. + */ +struct xfs_rui_log_format { + __uint16_t rui_type; /* rui log item type */ + __uint16_t rui_size; /* size of this item */ + __uint32_t rui_nextents; /* # extents to free */ + __uint64_t rui_id; /* rui identifier */ + struct xfs_map_extent rui_extents[1]; /* array of extents to rmap */ +}; + +/* + * This is the structure used to lay out an rud log item in the + * log. The rud_extents array is a variable size array whose + * size is given by rud_nextents; + */ +struct xfs_rud_log_format { + __uint16_t rud_type; /* rud log item type */ + __uint16_t rud_size; /* size of this item */ + __uint32_t rud_nextents; /* # of extents freed */ + __uint64_t rud_rui_id; /* id of corresponding rui */ + struct xfs_map_extent rud_extents[1]; /* array of extents rmapped */ +}; + +/* * Dquot Log format definitions. * * The first two fields must be the type and size fitting into diff --git a/fs/xfs/libxfs/xfs_rmap.h b/fs/xfs/libxfs/xfs_rmap.h index 92ac067da7dd..c4b1133e2ff9 100644 --- a/fs/xfs/libxfs/xfs_rmap.h +++ b/fs/xfs/libxfs/xfs_rmap.h @@ -163,4 +163,23 @@ int xfs_rmap_query_range(struct xfs_btree_cur *cur, struct xfs_rmap_irec *low_rec, struct xfs_rmap_irec *high_rec, xfs_rmap_query_range_fn fn, void *priv); +enum xfs_rmap_intent_type { + XFS_RMAP_MAP, + XFS_RMAP_MAP_SHARED, + XFS_RMAP_UNMAP, + XFS_RMAP_UNMAP_SHARED, + XFS_RMAP_CONVERT, + XFS_RMAP_CONVERT_SHARED, + XFS_RMAP_ALLOC, + XFS_RMAP_FREE, +}; + +struct xfs_rmap_intent { + struct list_head ri_list; + enum xfs_rmap_intent_type ri_type; + __uint64_t ri_owner; + int ri_whichfork; + struct xfs_bmbt_irec ri_bmap; +}; + #endif /* __XFS_RMAP_H__ */ diff --git a/fs/xfs/xfs_rmap_item.c b/fs/xfs/xfs_rmap_item.c new file mode 100644 index 000000000000..5398b8478f02 --- /dev/null +++ b/fs/xfs/xfs_rmap_item.c @@ -0,0 +1,459 @@ +/* + * Copyright (C) 2016 Oracle. All Rights Reserved. + * + * Author: Darrick J. Wong <darrick.wong@oracle.com> + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version 2 + * of the License, or (at your option) any later version. + * + * This program is distributed in the hope that it would be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write the Free Software Foundation, + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA. + */ +#include "xfs.h" +#include "xfs_fs.h" +#include "xfs_format.h" +#include "xfs_log_format.h" +#include "xfs_trans_resv.h" +#include "xfs_mount.h" +#include "xfs_trans.h" +#include "xfs_trans_priv.h" +#include "xfs_buf_item.h" +#include "xfs_rmap_item.h" +#include "xfs_log.h" + + +kmem_zone_t *xfs_rui_zone; +kmem_zone_t *xfs_rud_zone; + +static inline struct xfs_rui_log_item *RUI_ITEM(struct xfs_log_item *lip) +{ + return container_of(lip, struct xfs_rui_log_item, rui_item); +} + +void +xfs_rui_item_free( + struct xfs_rui_log_item *ruip) +{ + if (ruip->rui_format.rui_nextents > XFS_RUI_MAX_FAST_EXTENTS) + kmem_free(ruip); + else + kmem_zone_free(xfs_rui_zone, ruip); +} + +/* + * This returns the number of iovecs needed to log the given rui item. + * We only need 1 iovec for an rui item. It just logs the rui_log_format + * structure. + */ +static inline int +xfs_rui_item_sizeof( + struct xfs_rui_log_item *ruip) +{ + return sizeof(struct xfs_rui_log_format) + + (ruip->rui_format.rui_nextents - 1) * + sizeof(struct xfs_map_extent); +} + +STATIC void +xfs_rui_item_size( + struct xfs_log_item *lip, + int *nvecs, + int *nbytes) +{ + *nvecs += 1; + *nbytes += xfs_rui_item_sizeof(RUI_ITEM(lip)); +} + +/* + * This is called to fill in the vector of log iovecs for the + * given rui log item. We use only 1 iovec, and we point that + * at the rui_log_format structure embedded in the rui item. + * It is at this point that we assert that all of the extent + * slots in the rui item have been filled. + */ +STATIC void +xfs_rui_item_format( + struct xfs_log_item *lip, + struct xfs_log_vec *lv) +{ + struct xfs_rui_log_item *ruip = RUI_ITEM(lip); + struct xfs_log_iovec *vecp = NULL; + + ASSERT(atomic_read(&ruip->rui_next_extent) == + ruip->rui_format.rui_nextents); + + ruip->rui_format.rui_type = XFS_LI_RUI; + ruip->rui_format.rui_size = 1; + + xlog_copy_iovec(lv, &vecp, XLOG_REG_TYPE_RUI_FORMAT, &ruip->rui_format, + xfs_rui_item_sizeof(ruip)); +} + +/* + * Pinning has no meaning for an rui item, so just return. + */ +STATIC void +xfs_rui_item_pin( + struct xfs_log_item *lip) +{ +} + +/* + * The unpin operation is the last place an RUI is manipulated in the log. It is + * either inserted in the AIL or aborted in the event of a log I/O error. In + * either case, the RUI transaction has been successfully committed to make it + * this far. Therefore, we expect whoever committed the RUI to either construct + * and commit the RUD or drop the RUD's reference in the event of error. Simply + * drop the log's RUI reference now that the log is done with it. + */ +STATIC void +xfs_rui_item_unpin( + struct xfs_log_item *lip, + int remove) +{ + struct xfs_rui_log_item *ruip = RUI_ITEM(lip); + + xfs_rui_release(ruip); +} + +/* + * RUI items have no locking or pushing. However, since RUIs are pulled from + * the AIL when their corresponding RUDs are committed to disk, their situation + * is very similar to being pinned. Return XFS_ITEM_PINNED so that the caller + * will eventually flush the log. This should help in getting the RUI out of + * the AIL. + */ +STATIC uint +xfs_rui_item_push( + struct xfs_log_item *lip, + struct list_head *buffer_list) +{ + return XFS_ITEM_PINNED; +} + +/* + * The RUI has been either committed or aborted if the transaction has been + * cancelled. If the transaction was cancelled, an RUD isn't going to be + * constructed and thus we free the RUI here directly. + */ +STATIC void +xfs_rui_item_unlock( + struct xfs_log_item *lip) +{ + if (lip->li_flags & XFS_LI_ABORTED) + xfs_rui_item_free(RUI_ITEM(lip)); +} + +/* + * The RUI is logged only once and cannot be moved in the log, so simply return + * the lsn at which it's been logged. + */ +STATIC xfs_lsn_t +xfs_rui_item_committed( + struct xfs_log_item *lip, + xfs_lsn_t lsn) +{ + return lsn; +} + +/* + * The RUI dependency tracking op doesn't do squat. It can't because + * it doesn't know where the free extent is coming from. The dependency + * tracking has to be handled by the "enclosing" metadata object. For + * example, for inodes, the inode is locked throughout the extent freeing + * so the dependency should be recorded there. + */ +STATIC void +xfs_rui_item_committing( + struct xfs_log_item *lip, + xfs_lsn_t lsn) +{ +} + +/* + * This is the ops vector shared by all rui log items. + */ +static const struct xfs_item_ops xfs_rui_item_ops = { + .iop_size = xfs_rui_item_size, + .iop_format = xfs_rui_item_format, + .iop_pin = xfs_rui_item_pin, + .iop_unpin = xfs_rui_item_unpin, + .iop_unlock = xfs_rui_item_unlock, + .iop_committed = xfs_rui_item_committed, + .iop_push = xfs_rui_item_push, + .iop_committing = xfs_rui_item_committing, +}; + +/* + * Allocate and initialize an rui item with the given number of extents. + */ +struct xfs_rui_log_item * +xfs_rui_init( + struct xfs_mount *mp, + uint nextents) + +{ + struct xfs_rui_log_item *ruip; + uint size; + + ASSERT(nextents > 0); + if (nextents > XFS_RUI_MAX_FAST_EXTENTS) { + size = (uint)(sizeof(struct xfs_rui_log_item) + + ((nextents - 1) * sizeof(struct xfs_map_extent))); + ruip = kmem_zalloc(size, KM_SLEEP); + } else { + ruip = kmem_zone_zalloc(xfs_rui_zone, KM_SLEEP); + } + + xfs_log_item_init(mp, &ruip->rui_item, XFS_LI_RUI, &xfs_rui_item_ops); + ruip->rui_format.rui_nextents = nextents; + ruip->rui_format.rui_id = (uintptr_t)(void *)ruip; + atomic_set(&ruip->rui_next_extent, 0); + atomic_set(&ruip->rui_refcount, 2); + + return ruip; +} + +/* + * Copy an RUI format buffer from the given buf, and into the destination + * RUI format structure. The RUI/RUD items were designed not to need any + * special alignment handling. + */ +int +xfs_rui_copy_format( + struct xfs_log_iovec *buf, + struct xfs_rui_log_format *dst_rui_fmt) +{ + struct xfs_rui_log_format *src_rui_fmt; + uint len; + + src_rui_fmt = buf->i_addr; + len = sizeof(struct xfs_rui_log_format) + + (src_rui_fmt->rui_nextents - 1) * + sizeof(struct xfs_map_extent); + + if (buf->i_len != len) + return -EFSCORRUPTED; + + memcpy((char *)dst_rui_fmt, (char *)src_rui_fmt, len); + return 0; +} + +/* + * Freeing the RUI requires that we remove it from the AIL if it has already + * been placed there. However, the RUI may not yet have been placed in the AIL + * when called by xfs_rui_release() from RUD processing due to the ordering of + * committed vs unpin operations in bulk insert operations. Hence the reference + * count to ensure only the last caller frees the RUI. + */ +void +xfs_rui_release( + struct xfs_rui_log_item *ruip) +{ + if (atomic_dec_and_test(&ruip->rui_refcount)) { + xfs_trans_ail_remove(&ruip->rui_item, SHUTDOWN_LOG_IO_ERROR); + xfs_rui_item_free(ruip); + } +} + +static inline struct xfs_rud_log_item *RUD_ITEM(struct xfs_log_item *lip) +{ + return container_of(lip, struct xfs_rud_log_item, rud_item); +} + +STATIC void +xfs_rud_item_free(struct xfs_rud_log_item *rudp) +{ + if (rudp->rud_format.rud_nextents > XFS_RUD_MAX_FAST_EXTENTS) + kmem_free(rudp); + else + kmem_zone_free(xfs_rud_zone, rudp); +} + +/* + * This returns the number of iovecs needed to log the given rud item. + * We only need 1 iovec for an rud item. It just logs the rud_log_format + * structure. + */ +static inline int +xfs_rud_item_sizeof( + struct xfs_rud_log_item *rudp) +{ + return sizeof(struct xfs_rud_log_format) + + (rudp->rud_format.rud_nextents - 1) * + sizeof(struct xfs_map_extent); +} + +STATIC void +xfs_rud_item_size( + struct xfs_log_item *lip, + int *nvecs, + int *nbytes) +{ + *nvecs += 1; + *nbytes += xfs_rud_item_sizeof(RUD_ITEM(lip)); +} + +/* + * This is called to fill in the vector of log iovecs for the + * given rud log item. We use only 1 iovec, and we point that + * at the rud_log_format structure embedded in the rud item. + * It is at this point that we assert that all of the extent + * slots in the rud item have been filled. + */ +STATIC void +xfs_rud_item_format( + struct xfs_log_item *lip, + struct xfs_log_vec *lv) +{ + struct xfs_rud_log_item *rudp = RUD_ITEM(lip); + struct xfs_log_iovec *vecp = NULL; + + ASSERT(rudp->rud_next_extent == rudp->rud_format.rud_nextents); + + rudp->rud_format.rud_type = XFS_LI_RUD; + rudp->rud_format.rud_size = 1; + + xlog_copy_iovec(lv, &vecp, XLOG_REG_TYPE_RUD_FORMAT, &rudp->rud_format, + xfs_rud_item_sizeof(rudp)); +} + +/* + * Pinning has no meaning for an rud item, so just return. + */ +STATIC void +xfs_rud_item_pin( + struct xfs_log_item *lip) +{ +} + +/* + * Since pinning has no meaning for an rud item, unpinning does + * not either. + */ +STATIC void +xfs_rud_item_unpin( + struct xfs_log_item *lip, + int remove) +{ +} + +/* + * There isn't much you can do to push on an rud item. It is simply stuck + * waiting for the log to be flushed to disk. + */ +STATIC uint +xfs_rud_item_push( + struct xfs_log_item *lip, + struct list_head *buffer_list) +{ + return XFS_ITEM_PINNED; +} + +/* + * The RUD is either committed or aborted if the transaction is cancelled. If + * the transaction is cancelled, drop our reference to the RUI and free the + * RUD. + */ +STATIC void +xfs_rud_item_unlock( + struct xfs_log_item *lip) +{ + struct xfs_rud_log_item *rudp = RUD_ITEM(lip); + + if (lip->li_flags & XFS_LI_ABORTED) { + xfs_rui_release(rudp->rud_ruip); + xfs_rud_item_free(rudp); + } +} + +/* + * When the rud item is committed to disk, all we need to do is delete our + * reference to our partner rui item and then free ourselves. Since we're + * freeing ourselves we must return -1 to keep the transaction code from + * further referencing this item. + */ +STATIC xfs_lsn_t +xfs_rud_item_committed( + struct xfs_log_item *lip, + xfs_lsn_t lsn) +{ + struct xfs_rud_log_item *rudp = RUD_ITEM(lip); + + /* + * Drop the RUI reference regardless of whether the RUD has been + * aborted. Once the RUD transaction is constructed, it is the sole + * responsibility of the RUD to release the RUI (even if the RUI is + * aborted due to log I/O error). + */ + xfs_rui_release(rudp->rud_ruip); + xfs_rud_item_free(rudp); + + return (xfs_lsn_t)-1; +} + +/* + * The RUD dependency tracking op doesn't do squat. It can't because + * it doesn't know where the free extent is coming from. The dependency + * tracking has to be handled by the "enclosing" metadata object. For + * example, for inodes, the inode is locked throughout the extent freeing + * so the dependency should be recorded there. + */ +STATIC void +xfs_rud_item_committing( + struct xfs_log_item *lip, + xfs_lsn_t lsn) +{ +} + +/* + * This is the ops vector shared by all rud log items. + */ +static const struct xfs_item_ops xfs_rud_item_ops = { + .iop_size = xfs_rud_item_size, + .iop_format = xfs_rud_item_format, + .iop_pin = xfs_rud_item_pin, + .iop_unpin = xfs_rud_item_unpin, + .iop_unlock = xfs_rud_item_unlock, + .iop_committed = xfs_rud_item_committed, + .iop_push = xfs_rud_item_push, + .iop_committing = xfs_rud_item_committing, +}; + +/* + * Allocate and initialize an rud item with the given number of extents. + */ +struct xfs_rud_log_item * +xfs_rud_init( + struct xfs_mount *mp, + struct xfs_rui_log_item *ruip, + uint nextents) + +{ + struct xfs_rud_log_item *rudp; + uint size; + + ASSERT(nextents > 0); + if (nextents > XFS_RUD_MAX_FAST_EXTENTS) { + size = (uint)(sizeof(struct xfs_rud_log_item) + + ((nextents - 1) * sizeof(struct xfs_map_extent))); + rudp = kmem_zalloc(size, KM_SLEEP); + } else { + rudp = kmem_zone_zalloc(xfs_rud_zone, KM_SLEEP); + } + + xfs_log_item_init(mp, &rudp->rud_item, XFS_LI_RUD, &xfs_rud_item_ops); + rudp->rud_ruip = ruip; + rudp->rud_format.rud_nextents = nextents; + rudp->rud_format.rud_rui_id = ruip->rui_format.rui_id; + + return rudp; +} diff --git a/fs/xfs/xfs_rmap_item.h b/fs/xfs/xfs_rmap_item.h new file mode 100644 index 000000000000..bd36ab50c0fe --- /dev/null +++ b/fs/xfs/xfs_rmap_item.h @@ -0,0 +1,100 @@ +/* + * Copyright (C) 2016 Oracle. All Rights Reserved. + * + * Author: Darrick J. Wong <darrick.wong@oracle.com> + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version 2 + * of the License, or (at your option) any later version. + * + * This program is distributed in the hope that it would be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write the Free Software Foundation, + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA. + */ +#ifndef __XFS_RMAP_ITEM_H__ +#define __XFS_RMAP_ITEM_H__ + +/* + * There are (currently) three pairs of rmap btree redo item types: map, unmap, + * and convert. The common abbreviations for these are RUI (rmap update + * intent) and RUD (rmap update done). The redo item type is encoded in the + * flags field of each xfs_map_extent. + * + * *I items should be recorded in the *first* of a series of rolled + * transactions, and the *D items should be recorded in the same transaction + * that records the associated rmapbt updates. Typically, the first + * transaction will record a bmbt update, followed by some number of + * transactions containing rmapbt updates, and finally transactions with any + * bnobt/cntbt updates. + * + * Should the system crash after the commit of the first transaction but + * before the commit of the final transaction in a series, log recovery will + * use the redo information recorded by the intent items to replay the + * (rmapbt/bnobt/cntbt) metadata updates in the non-first transaction. + */ + +/* kernel only RUI/RUD definitions */ + +struct xfs_mount; +struct kmem_zone; + +/* + * Max number of extents in fast allocation path. + */ +#define XFS_RUI_MAX_FAST_EXTENTS 16 + +/* + * Define RUI flag bits. Manipulated by set/clear/test_bit operators. + */ +#define XFS_RUI_RECOVERED 1 + +/* + * This is the "rmap update intent" log item. It is used to log the fact that + * some reverse mappings need to change. It is used in conjunction with the + * "rmap update done" log item described below. + * + * These log items follow the same rules as struct xfs_efi_log_item; see the + * comments about that structure (in xfs_extfree_item.h) for more details. + */ +struct xfs_rui_log_item { + struct xfs_log_item rui_item; + atomic_t rui_refcount; + atomic_t rui_next_extent; + unsigned long rui_flags; /* misc flags */ + struct xfs_rui_log_format rui_format; +}; + +/* + * This is the "rmap update done" log item. It is used to log the fact that + * some rmapbt updates mentioned in an earlier rui item have been performed. + */ +struct xfs_rud_log_item { + struct xfs_log_item rud_item; + struct xfs_rui_log_item *rud_ruip; + uint rud_next_extent; + struct xfs_rud_log_format rud_format; +}; + +/* + * Max number of extents in fast allocation path. + */ +#define XFS_RUD_MAX_FAST_EXTENTS 16 + +extern struct kmem_zone *xfs_rui_zone; +extern struct kmem_zone *xfs_rud_zone; + +struct xfs_rui_log_item *xfs_rui_init(struct xfs_mount *, uint); +struct xfs_rud_log_item *xfs_rud_init(struct xfs_mount *, + struct xfs_rui_log_item *, uint); +int xfs_rui_copy_format(struct xfs_log_iovec *buf, + struct xfs_rui_log_format *dst_rui_fmt); +void xfs_rui_item_free(struct xfs_rui_log_item *); +void xfs_rui_release(struct xfs_rui_log_item *); + +#endif /* __XFS_RMAP_ITEM_H__ */ diff --git a/fs/xfs/xfs_super.c b/fs/xfs/xfs_super.c index 449cadf149f9..654a0924b3d3 100644 --- a/fs/xfs/xfs_super.c +++ b/fs/xfs/xfs_super.c @@ -46,6 +46,7 @@ #include "xfs_quota.h" #include "xfs_sysfs.h" #include "xfs_ondisk.h" +#include "xfs_rmap_item.h" #include <linux/namei.h> #include <linux/init.h> @@ -1765,8 +1766,26 @@ xfs_init_zones(void) if (!xfs_icreate_zone) goto out_destroy_ili_zone; + xfs_rud_zone = kmem_zone_init((sizeof(struct xfs_rud_log_item) + + ((XFS_RUD_MAX_FAST_EXTENTS - 1) * + sizeof(struct xfs_map_extent))), + "xfs_rud_item"); + if (!xfs_rud_zone) + goto out_destroy_icreate_zone; + + xfs_rui_zone = kmem_zone_init((sizeof(struct xfs_rui_log_item) + + ((XFS_RUI_MAX_FAST_EXTENTS - 1) * + sizeof(struct xfs_map_extent))), + "xfs_rui_item"); + if (!xfs_rui_zone) + goto out_destroy_rud_zone; + return 0; + out_destroy_rud_zone: + kmem_zone_destroy(xfs_rud_zone); + out_destroy_icreate_zone: + kmem_zone_destroy(xfs_icreate_zone); out_destroy_ili_zone: kmem_zone_destroy(xfs_ili_zone); out_destroy_inode_zone: @@ -1805,6 +1824,8 @@ xfs_destroy_zones(void) * destroy caches. */ rcu_barrier(); + kmem_zone_destroy(xfs_rui_zone); + kmem_zone_destroy(xfs_rud_zone); kmem_zone_destroy(xfs_icreate_zone); kmem_zone_destroy(xfs_ili_zone); kmem_zone_destroy(xfs_inode_zone); |