blob: 0e50f2c9348e196ab39cc33b7fc25d4ca3d96458 [file] [log] [blame]
Dave Chinner0b61f8a2018-06-05 19:42:14 -07001// SPDX-License-Identifier: GPL-2.0
Linus Torvalds1da177e2005-04-16 15:20:36 -07002/*
Nathan Scott7b718762005-11-02 14:58:39 +11003 * Copyright (c) 2000-2001,2005 Silicon Graphics, Inc.
4 * All Rights Reserved.
Linus Torvalds1da177e2005-04-16 15:20:36 -07005 */
Linus Torvalds1da177e2005-04-16 15:20:36 -07006#include "xfs.h"
Nathan Scotta844f452005-11-02 14:38:42 +11007#include "xfs_fs.h"
Christoph Hellwig4fb6e8a2014-11-28 14:25:04 +11008#include "xfs_format.h"
Dave Chinner239880e2013-10-23 10:50:10 +11009#include "xfs_log_format.h"
10#include "xfs_trans_resv.h"
Darrick J. Wongdc42375d2016-08-03 11:23:49 +100011#include "xfs_bit.h"
Darrick J. Wong5467b342019-06-28 19:25:35 -070012#include "xfs_shared.h"
Linus Torvalds1da177e2005-04-16 15:20:36 -070013#include "xfs_mount.h"
Christoph Hellwig81f40042019-06-28 19:28:17 -070014#include "xfs_defer.h"
Dave Chinner239880e2013-10-23 10:50:10 +110015#include "xfs_trans.h"
Linus Torvalds1da177e2005-04-16 15:20:36 -070016#include "xfs_trans_priv.h"
17#include "xfs_extfree_item.h"
Christoph Hellwig12343512013-12-13 11:00:43 +110018#include "xfs_log.h"
Darrick J. Wong340785c2016-08-03 11:33:42 +100019#include "xfs_btree.h"
20#include "xfs_rmap.h"
Christoph Hellwig81f40042019-06-28 19:28:17 -070021#include "xfs_alloc.h"
22#include "xfs_bmap.h"
23#include "xfs_trace.h"
Darrick J. Wonga5155b82019-11-02 09:40:53 -070024#include "xfs_error.h"
Darrick J. Wong9817aa82020-05-01 16:00:48 -070025#include "xfs_log_priv.h"
Darrick J. Wong86ffa472020-05-01 16:00:45 -070026#include "xfs_log_recover.h"
Linus Torvalds1da177e2005-04-16 15:20:36 -070027
Darrick J. Wong182696f2021-10-12 11:09:23 -070028struct kmem_cache *xfs_efi_cache;
29struct kmem_cache *xfs_efd_cache;
Linus Torvalds1da177e2005-04-16 15:20:36 -070030
Darrick J. Wong10d0c6e2020-05-01 16:00:50 -070031static const struct xfs_item_ops xfs_efi_item_ops;
32
Christoph Hellwig7bfa31d2010-06-23 18:11:15 +100033static inline struct xfs_efi_log_item *EFI_ITEM(struct xfs_log_item *lip)
34{
35 return container_of(lip, struct xfs_efi_log_item, efi_item);
36}
Linus Torvalds1da177e2005-04-16 15:20:36 -070037
Darrick J. Wong9817aa82020-05-01 16:00:48 -070038STATIC void
Christoph Hellwig7bfa31d2010-06-23 18:11:15 +100039xfs_efi_item_free(
40 struct xfs_efi_log_item *efip)
Christoph Hellwig7d795ca2005-06-21 15:41:19 +100041{
Dave Chinnerb1c5ebb2016-07-22 09:52:35 +100042 kmem_free(efip->efi_item.li_lv_shadow);
Christoph Hellwig7bfa31d2010-06-23 18:11:15 +100043 if (efip->efi_format.efi_nextents > XFS_EFI_MAX_FAST_EXTENTS)
Denys Vlasenkof0e2d932008-05-19 16:31:57 +100044 kmem_free(efip);
Christoph Hellwig7bfa31d2010-06-23 18:11:15 +100045 else
Darrick J. Wong182696f2021-10-12 11:09:23 -070046 kmem_cache_free(xfs_efi_cache, efip);
Christoph Hellwig7d795ca2005-06-21 15:41:19 +100047}
Linus Torvalds1da177e2005-04-16 15:20:36 -070048
49/*
Dave Chinner0612d112018-04-02 20:08:27 -070050 * Freeing the efi requires that we remove it from the AIL if it has already
51 * been placed there. However, the EFI may not yet have been placed in the AIL
52 * when called by xfs_efi_release() from EFD processing due to the ordering of
53 * committed vs unpin operations in bulk insert operations. Hence the reference
54 * count to ensure only the last caller frees the EFI.
55 */
Darrick J. Wong10d0c6e2020-05-01 16:00:50 -070056STATIC void
Dave Chinner0612d112018-04-02 20:08:27 -070057xfs_efi_release(
58 struct xfs_efi_log_item *efip)
59{
60 ASSERT(atomic_read(&efip->efi_refcount) > 0);
61 if (atomic_dec_and_test(&efip->efi_refcount)) {
Brian Foster65587922020-05-06 13:25:23 -070062 xfs_trans_ail_delete(&efip->efi_item, SHUTDOWN_LOG_IO_ERROR);
Dave Chinner0612d112018-04-02 20:08:27 -070063 xfs_efi_item_free(efip);
64 }
65}
66
67/*
Linus Torvalds1da177e2005-04-16 15:20:36 -070068 * This returns the number of iovecs needed to log the given efi item.
69 * We only need 1 iovec for an efi item. It just logs the efi_log_format
70 * structure.
71 */
Dave Chinner166d1362013-08-12 20:50:04 +100072static inline int
73xfs_efi_item_sizeof(
74 struct xfs_efi_log_item *efip)
Linus Torvalds1da177e2005-04-16 15:20:36 -070075{
Dave Chinner166d1362013-08-12 20:50:04 +100076 return sizeof(struct xfs_efi_log_format) +
77 (efip->efi_format.efi_nextents - 1) * sizeof(xfs_extent_t);
78}
79
80STATIC void
81xfs_efi_item_size(
82 struct xfs_log_item *lip,
83 int *nvecs,
84 int *nbytes)
85{
86 *nvecs += 1;
87 *nbytes += xfs_efi_item_sizeof(EFI_ITEM(lip));
Linus Torvalds1da177e2005-04-16 15:20:36 -070088}
89
90/*
91 * This is called to fill in the vector of log iovecs for the
92 * given efi log item. We use only 1 iovec, and we point that
93 * at the efi_log_format structure embedded in the efi item.
94 * It is at this point that we assert that all of the extent
95 * slots in the efi item have been filled.
96 */
97STATIC void
Christoph Hellwig7bfa31d2010-06-23 18:11:15 +100098xfs_efi_item_format(
99 struct xfs_log_item *lip,
Christoph Hellwigbde7cff2013-12-13 11:34:02 +1100100 struct xfs_log_vec *lv)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700101{
Christoph Hellwig7bfa31d2010-06-23 18:11:15 +1000102 struct xfs_efi_log_item *efip = EFI_ITEM(lip);
Christoph Hellwigbde7cff2013-12-13 11:34:02 +1100103 struct xfs_log_iovec *vecp = NULL;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700104
Dave Chinnerb199c8a2010-12-20 11:59:49 +1100105 ASSERT(atomic_read(&efip->efi_next_extent) ==
106 efip->efi_format.efi_nextents);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700107
108 efip->efi_format.efi_type = XFS_LI_EFI;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700109 efip->efi_format.efi_size = 1;
110
Christoph Hellwigbde7cff2013-12-13 11:34:02 +1100111 xlog_copy_iovec(lv, &vecp, XLOG_REG_TYPE_EFI_FORMAT,
Christoph Hellwig12343512013-12-13 11:00:43 +1100112 &efip->efi_format,
113 xfs_efi_item_sizeof(efip));
Linus Torvalds1da177e2005-04-16 15:20:36 -0700114}
115
116
117/*
Brian Foster8d99fe92015-08-19 09:51:16 +1000118 * The unpin operation is the last place an EFI is manipulated in the log. It is
119 * either inserted in the AIL or aborted in the event of a log I/O error. In
120 * either case, the EFI transaction has been successfully committed to make it
121 * this far. Therefore, we expect whoever committed the EFI to either construct
122 * and commit the EFD or drop the EFD's reference in the event of error. Simply
123 * drop the log's EFI reference now that the log is done with it.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700124 */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700125STATIC void
Christoph Hellwig7bfa31d2010-06-23 18:11:15 +1000126xfs_efi_item_unpin(
127 struct xfs_log_item *lip,
128 int remove)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700129{
Christoph Hellwig7bfa31d2010-06-23 18:11:15 +1000130 struct xfs_efi_log_item *efip = EFI_ITEM(lip);
Brian Foster5e4b5382015-08-19 09:50:12 +1000131 xfs_efi_release(efip);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700132}
133
134/*
Brian Foster8d99fe92015-08-19 09:51:16 +1000135 * The EFI has been either committed or aborted if the transaction has been
136 * cancelled. If the transaction was cancelled, an EFD isn't going to be
137 * constructed and thus we free the EFI here directly.
138 */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700139STATIC void
Christoph Hellwigddf92052019-06-28 19:27:32 -0700140xfs_efi_item_release(
Christoph Hellwig7bfa31d2010-06-23 18:11:15 +1000141 struct xfs_log_item *lip)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700142{
Christoph Hellwigddf92052019-06-28 19:27:32 -0700143 xfs_efi_release(EFI_ITEM(lip));
Linus Torvalds1da177e2005-04-16 15:20:36 -0700144}
145
Linus Torvalds1da177e2005-04-16 15:20:36 -0700146/*
147 * Allocate and initialize an efi item with the given number of extents.
148 */
Darrick J. Wong9817aa82020-05-01 16:00:48 -0700149STATIC struct xfs_efi_log_item *
Christoph Hellwig7bfa31d2010-06-23 18:11:15 +1000150xfs_efi_init(
151 struct xfs_mount *mp,
152 uint nextents)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700153
154{
Christoph Hellwig7bfa31d2010-06-23 18:11:15 +1000155 struct xfs_efi_log_item *efip;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700156 uint size;
157
158 ASSERT(nextents > 0);
159 if (nextents > XFS_EFI_MAX_FAST_EXTENTS) {
Christoph Hellwig82ff4502020-04-30 12:52:18 -0700160 size = (uint)(sizeof(struct xfs_efi_log_item) +
Linus Torvalds1da177e2005-04-16 15:20:36 -0700161 ((nextents - 1) * sizeof(xfs_extent_t)));
Tetsuo Handa707e0dd2019-08-26 12:06:22 -0700162 efip = kmem_zalloc(size, 0);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700163 } else {
Darrick J. Wong182696f2021-10-12 11:09:23 -0700164 efip = kmem_cache_zalloc(xfs_efi_cache,
Carlos Maiolino32a2b112020-07-22 09:23:10 -0700165 GFP_KERNEL | __GFP_NOFAIL);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700166 }
167
Dave Chinner43f5efc2010-03-23 10:10:00 +1100168 xfs_log_item_init(mp, &efip->efi_item, XFS_LI_EFI, &xfs_efi_item_ops);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700169 efip->efi_format.efi_nextents = nextents;
Christoph Hellwigdb9d67d2015-06-22 09:43:32 +1000170 efip->efi_format.efi_id = (uintptr_t)(void *)efip;
Dave Chinnerb199c8a2010-12-20 11:59:49 +1100171 atomic_set(&efip->efi_next_extent, 0);
Dave Chinner666d6442013-04-03 14:09:21 +1100172 atomic_set(&efip->efi_refcount, 2);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700173
Christoph Hellwig7bfa31d2010-06-23 18:11:15 +1000174 return efip;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700175}
176
177/*
Tim Shimmin6d192a92006-06-09 14:55:38 +1000178 * Copy an EFI format buffer from the given buf, and into the destination
179 * EFI format structure.
180 * The given buffer can be in 32 bit or 64 bit form (which has different padding),
181 * one of which will be the native format for this kernel.
182 * It will handle the conversion of formats if necessary.
183 */
Darrick J. Wong9817aa82020-05-01 16:00:48 -0700184STATIC int
Tim Shimmin6d192a92006-06-09 14:55:38 +1000185xfs_efi_copy_format(xfs_log_iovec_t *buf, xfs_efi_log_format_t *dst_efi_fmt)
186{
Christoph Hellwig4e0d5f92010-06-23 18:11:15 +1000187 xfs_efi_log_format_t *src_efi_fmt = buf->i_addr;
Tim Shimmin6d192a92006-06-09 14:55:38 +1000188 uint i;
189 uint len = sizeof(xfs_efi_log_format_t) +
190 (src_efi_fmt->efi_nextents - 1) * sizeof(xfs_extent_t);
191 uint len32 = sizeof(xfs_efi_log_format_32_t) +
192 (src_efi_fmt->efi_nextents - 1) * sizeof(xfs_extent_32_t);
193 uint len64 = sizeof(xfs_efi_log_format_64_t) +
194 (src_efi_fmt->efi_nextents - 1) * sizeof(xfs_extent_64_t);
195
196 if (buf->i_len == len) {
197 memcpy((char *)dst_efi_fmt, (char*)src_efi_fmt, len);
198 return 0;
199 } else if (buf->i_len == len32) {
Christoph Hellwig4e0d5f92010-06-23 18:11:15 +1000200 xfs_efi_log_format_32_t *src_efi_fmt_32 = buf->i_addr;
Tim Shimmin6d192a92006-06-09 14:55:38 +1000201
202 dst_efi_fmt->efi_type = src_efi_fmt_32->efi_type;
203 dst_efi_fmt->efi_size = src_efi_fmt_32->efi_size;
204 dst_efi_fmt->efi_nextents = src_efi_fmt_32->efi_nextents;
205 dst_efi_fmt->efi_id = src_efi_fmt_32->efi_id;
206 for (i = 0; i < dst_efi_fmt->efi_nextents; i++) {
207 dst_efi_fmt->efi_extents[i].ext_start =
208 src_efi_fmt_32->efi_extents[i].ext_start;
209 dst_efi_fmt->efi_extents[i].ext_len =
210 src_efi_fmt_32->efi_extents[i].ext_len;
211 }
212 return 0;
213 } else if (buf->i_len == len64) {
Christoph Hellwig4e0d5f92010-06-23 18:11:15 +1000214 xfs_efi_log_format_64_t *src_efi_fmt_64 = buf->i_addr;
Tim Shimmin6d192a92006-06-09 14:55:38 +1000215
216 dst_efi_fmt->efi_type = src_efi_fmt_64->efi_type;
217 dst_efi_fmt->efi_size = src_efi_fmt_64->efi_size;
218 dst_efi_fmt->efi_nextents = src_efi_fmt_64->efi_nextents;
219 dst_efi_fmt->efi_id = src_efi_fmt_64->efi_id;
220 for (i = 0; i < dst_efi_fmt->efi_nextents; i++) {
221 dst_efi_fmt->efi_extents[i].ext_start =
222 src_efi_fmt_64->efi_extents[i].ext_start;
223 dst_efi_fmt->efi_extents[i].ext_len =
224 src_efi_fmt_64->efi_extents[i].ext_len;
225 }
226 return 0;
227 }
Darrick J. Wonga5155b82019-11-02 09:40:53 -0700228 XFS_ERROR_REPORT(__func__, XFS_ERRLEVEL_LOW, NULL);
Dave Chinner24513372014-06-25 14:58:08 +1000229 return -EFSCORRUPTED;
Tim Shimmin6d192a92006-06-09 14:55:38 +1000230}
231
Christoph Hellwig7bfa31d2010-06-23 18:11:15 +1000232static inline struct xfs_efd_log_item *EFD_ITEM(struct xfs_log_item *lip)
Christoph Hellwig7d795ca2005-06-21 15:41:19 +1000233{
Christoph Hellwig7bfa31d2010-06-23 18:11:15 +1000234 return container_of(lip, struct xfs_efd_log_item, efd_item);
235}
Linus Torvalds1da177e2005-04-16 15:20:36 -0700236
Christoph Hellwig7bfa31d2010-06-23 18:11:15 +1000237STATIC void
238xfs_efd_item_free(struct xfs_efd_log_item *efdp)
239{
Dave Chinnerb1c5ebb2016-07-22 09:52:35 +1000240 kmem_free(efdp->efd_item.li_lv_shadow);
Christoph Hellwig7bfa31d2010-06-23 18:11:15 +1000241 if (efdp->efd_format.efd_nextents > XFS_EFD_MAX_FAST_EXTENTS)
Denys Vlasenkof0e2d932008-05-19 16:31:57 +1000242 kmem_free(efdp);
Christoph Hellwig7bfa31d2010-06-23 18:11:15 +1000243 else
Darrick J. Wong182696f2021-10-12 11:09:23 -0700244 kmem_cache_free(xfs_efd_cache, efdp);
Christoph Hellwig7d795ca2005-06-21 15:41:19 +1000245}
Linus Torvalds1da177e2005-04-16 15:20:36 -0700246
247/*
248 * This returns the number of iovecs needed to log the given efd item.
249 * We only need 1 iovec for an efd item. It just logs the efd_log_format
250 * structure.
251 */
Dave Chinner166d1362013-08-12 20:50:04 +1000252static inline int
253xfs_efd_item_sizeof(
254 struct xfs_efd_log_item *efdp)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700255{
Dave Chinner166d1362013-08-12 20:50:04 +1000256 return sizeof(xfs_efd_log_format_t) +
257 (efdp->efd_format.efd_nextents - 1) * sizeof(xfs_extent_t);
258}
259
260STATIC void
261xfs_efd_item_size(
262 struct xfs_log_item *lip,
263 int *nvecs,
264 int *nbytes)
265{
266 *nvecs += 1;
267 *nbytes += xfs_efd_item_sizeof(EFD_ITEM(lip));
Linus Torvalds1da177e2005-04-16 15:20:36 -0700268}
269
270/*
271 * This is called to fill in the vector of log iovecs for the
272 * given efd log item. We use only 1 iovec, and we point that
273 * at the efd_log_format structure embedded in the efd item.
274 * It is at this point that we assert that all of the extent
275 * slots in the efd item have been filled.
276 */
277STATIC void
Christoph Hellwig7bfa31d2010-06-23 18:11:15 +1000278xfs_efd_item_format(
279 struct xfs_log_item *lip,
Christoph Hellwigbde7cff2013-12-13 11:34:02 +1100280 struct xfs_log_vec *lv)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700281{
Christoph Hellwig7bfa31d2010-06-23 18:11:15 +1000282 struct xfs_efd_log_item *efdp = EFD_ITEM(lip);
Christoph Hellwigbde7cff2013-12-13 11:34:02 +1100283 struct xfs_log_iovec *vecp = NULL;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700284
285 ASSERT(efdp->efd_next_extent == efdp->efd_format.efd_nextents);
286
287 efdp->efd_format.efd_type = XFS_LI_EFD;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700288 efdp->efd_format.efd_size = 1;
289
Christoph Hellwigbde7cff2013-12-13 11:34:02 +1100290 xlog_copy_iovec(lv, &vecp, XLOG_REG_TYPE_EFD_FORMAT,
Christoph Hellwig12343512013-12-13 11:00:43 +1100291 &efdp->efd_format,
292 xfs_efd_item_sizeof(efdp));
Linus Torvalds1da177e2005-04-16 15:20:36 -0700293}
294
Linus Torvalds1da177e2005-04-16 15:20:36 -0700295/*
Brian Foster8d99fe92015-08-19 09:51:16 +1000296 * The EFD is either committed or aborted if the transaction is cancelled. If
297 * the transaction is cancelled, drop our reference to the EFI and free the EFD.
298 */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700299STATIC void
Christoph Hellwigddf92052019-06-28 19:27:32 -0700300xfs_efd_item_release(
Christoph Hellwig7bfa31d2010-06-23 18:11:15 +1000301 struct xfs_log_item *lip)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700302{
Brian Foster8d99fe92015-08-19 09:51:16 +1000303 struct xfs_efd_log_item *efdp = EFD_ITEM(lip);
304
Christoph Hellwigddf92052019-06-28 19:27:32 -0700305 xfs_efi_release(efdp->efd_efip);
306 xfs_efd_item_free(efdp);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700307}
308
Christoph Hellwig272e42b2011-10-28 09:54:24 +0000309static const struct xfs_item_ops xfs_efd_item_ops = {
Christoph Hellwig9ce632a2019-06-28 19:27:32 -0700310 .flags = XFS_ITEM_RELEASE_WHEN_COMMITTED,
Christoph Hellwig7bfa31d2010-06-23 18:11:15 +1000311 .iop_size = xfs_efd_item_size,
312 .iop_format = xfs_efd_item_format,
Christoph Hellwigddf92052019-06-28 19:27:32 -0700313 .iop_release = xfs_efd_item_release,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700314};
315
Linus Torvalds1da177e2005-04-16 15:20:36 -0700316/*
Christoph Hellwig9c5e7c22019-06-28 19:27:35 -0700317 * Allocate an "extent free done" log item that will hold nextents worth of
318 * extents. The caller must use all nextents extents, because we are not
319 * flexible about this at all.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700320 */
Christoph Hellwig81f40042019-06-28 19:28:17 -0700321static struct xfs_efd_log_item *
Christoph Hellwig9c5e7c22019-06-28 19:27:35 -0700322xfs_trans_get_efd(
323 struct xfs_trans *tp,
324 struct xfs_efi_log_item *efip,
325 unsigned int nextents)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700326{
Christoph Hellwig9c5e7c22019-06-28 19:27:35 -0700327 struct xfs_efd_log_item *efdp;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700328
329 ASSERT(nextents > 0);
Christoph Hellwig9c5e7c22019-06-28 19:27:35 -0700330
Linus Torvalds1da177e2005-04-16 15:20:36 -0700331 if (nextents > XFS_EFD_MAX_FAST_EXTENTS) {
Christoph Hellwig9c5e7c22019-06-28 19:27:35 -0700332 efdp = kmem_zalloc(sizeof(struct xfs_efd_log_item) +
333 (nextents - 1) * sizeof(struct xfs_extent),
Tetsuo Handa707e0dd2019-08-26 12:06:22 -0700334 0);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700335 } else {
Darrick J. Wong182696f2021-10-12 11:09:23 -0700336 efdp = kmem_cache_zalloc(xfs_efd_cache,
Carlos Maiolino32a2b112020-07-22 09:23:10 -0700337 GFP_KERNEL | __GFP_NOFAIL);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700338 }
339
Christoph Hellwig9c5e7c22019-06-28 19:27:35 -0700340 xfs_log_item_init(tp->t_mountp, &efdp->efd_item, XFS_LI_EFD,
341 &xfs_efd_item_ops);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700342 efdp->efd_efip = efip;
343 efdp->efd_format.efd_nextents = nextents;
344 efdp->efd_format.efd_efi_id = efip->efi_format.efi_id;
345
Christoph Hellwig9c5e7c22019-06-28 19:27:35 -0700346 xfs_trans_add_item(tp, &efdp->efd_item);
Christoph Hellwig7bfa31d2010-06-23 18:11:15 +1000347 return efdp;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700348}
Darrick J. Wongdc42375d2016-08-03 11:23:49 +1000349
350/*
Christoph Hellwig81f40042019-06-28 19:28:17 -0700351 * Free an extent and log it to the EFD. Note that the transaction is marked
352 * dirty regardless of whether the extent free succeeds or fails to support the
353 * EFI/EFD lifecycle rules.
354 */
355static int
356xfs_trans_free_extent(
357 struct xfs_trans *tp,
358 struct xfs_efd_log_item *efdp,
359 xfs_fsblock_t start_block,
360 xfs_extlen_t ext_len,
361 const struct xfs_owner_info *oinfo,
362 bool skip_discard)
363{
364 struct xfs_mount *mp = tp->t_mountp;
365 struct xfs_extent *extp;
366 uint next_extent;
367 xfs_agnumber_t agno = XFS_FSB_TO_AGNO(mp, start_block);
368 xfs_agblock_t agbno = XFS_FSB_TO_AGBNO(mp,
369 start_block);
370 int error;
371
372 trace_xfs_bmap_free_deferred(tp->t_mountp, agno, 0, agbno, ext_len);
373
374 error = __xfs_free_extent(tp, start_block, ext_len,
375 oinfo, XFS_AG_RESV_NONE, skip_discard);
376 /*
377 * Mark the transaction dirty, even on error. This ensures the
378 * transaction is aborted, which:
379 *
380 * 1.) releases the EFI and frees the EFD
381 * 2.) shuts down the filesystem
382 */
383 tp->t_flags |= XFS_TRANS_DIRTY;
384 set_bit(XFS_LI_DIRTY, &efdp->efd_item.li_flags);
385
386 next_extent = efdp->efd_next_extent;
387 ASSERT(next_extent < efdp->efd_format.efd_nextents);
388 extp = &(efdp->efd_format.efd_extents[next_extent]);
389 extp->ext_start = start_block;
390 extp->ext_len = ext_len;
391 efdp->efd_next_extent++;
392
393 return error;
394}
395
396/* Sort bmap items by AG. */
397static int
398xfs_extent_free_diff_items(
399 void *priv,
Sami Tolvanen4f0f5862021-04-08 11:28:34 -0700400 const struct list_head *a,
401 const struct list_head *b)
Christoph Hellwig81f40042019-06-28 19:28:17 -0700402{
403 struct xfs_mount *mp = priv;
404 struct xfs_extent_free_item *ra;
405 struct xfs_extent_free_item *rb;
406
407 ra = container_of(a, struct xfs_extent_free_item, xefi_list);
408 rb = container_of(b, struct xfs_extent_free_item, xefi_list);
409 return XFS_FSB_TO_AGNO(mp, ra->xefi_startblock) -
410 XFS_FSB_TO_AGNO(mp, rb->xefi_startblock);
411}
412
Christoph Hellwig81f40042019-06-28 19:28:17 -0700413/* Log a free extent to the intent item. */
414STATIC void
415xfs_extent_free_log_item(
416 struct xfs_trans *tp,
Christoph Hellwigc1f09182020-04-30 12:52:20 -0700417 struct xfs_efi_log_item *efip,
418 struct xfs_extent_free_item *free)
Christoph Hellwig81f40042019-06-28 19:28:17 -0700419{
Christoph Hellwig81f40042019-06-28 19:28:17 -0700420 uint next_extent;
421 struct xfs_extent *extp;
422
Christoph Hellwig81f40042019-06-28 19:28:17 -0700423 tp->t_flags |= XFS_TRANS_DIRTY;
424 set_bit(XFS_LI_DIRTY, &efip->efi_item.li_flags);
425
426 /*
427 * atomic_inc_return gives us the value after the increment;
428 * we want to use it as an array index so we need to subtract 1 from
429 * it.
430 */
431 next_extent = atomic_inc_return(&efip->efi_next_extent) - 1;
432 ASSERT(next_extent < efip->efi_format.efi_nextents);
433 extp = &efip->efi_format.efi_extents[next_extent];
434 extp->ext_start = free->xefi_startblock;
435 extp->ext_len = free->xefi_blockcount;
436}
437
Christoph Hellwig13a83332020-04-30 12:52:21 -0700438static struct xfs_log_item *
Christoph Hellwigc1f09182020-04-30 12:52:20 -0700439xfs_extent_free_create_intent(
440 struct xfs_trans *tp,
441 struct list_head *items,
Christoph Hellwigd367a862020-04-30 12:52:20 -0700442 unsigned int count,
443 bool sort)
Christoph Hellwigc1f09182020-04-30 12:52:20 -0700444{
445 struct xfs_mount *mp = tp->t_mountp;
446 struct xfs_efi_log_item *efip = xfs_efi_init(mp, count);
447 struct xfs_extent_free_item *free;
448
449 ASSERT(count > 0);
450
451 xfs_trans_add_item(tp, &efip->efi_item);
Christoph Hellwigd367a862020-04-30 12:52:20 -0700452 if (sort)
453 list_sort(mp, items, xfs_extent_free_diff_items);
Christoph Hellwigc1f09182020-04-30 12:52:20 -0700454 list_for_each_entry(free, items, xefi_list)
455 xfs_extent_free_log_item(tp, efip, free);
Christoph Hellwig13a83332020-04-30 12:52:21 -0700456 return &efip->efi_item;
Christoph Hellwigc1f09182020-04-30 12:52:20 -0700457}
458
Christoph Hellwig81f40042019-06-28 19:28:17 -0700459/* Get an EFD so we can process all the free extents. */
Christoph Hellwigf09d1672020-04-30 12:52:22 -0700460static struct xfs_log_item *
Christoph Hellwig81f40042019-06-28 19:28:17 -0700461xfs_extent_free_create_done(
462 struct xfs_trans *tp,
Christoph Hellwig13a83332020-04-30 12:52:21 -0700463 struct xfs_log_item *intent,
Christoph Hellwig81f40042019-06-28 19:28:17 -0700464 unsigned int count)
465{
Christoph Hellwigf09d1672020-04-30 12:52:22 -0700466 return &xfs_trans_get_efd(tp, EFI_ITEM(intent), count)->efd_item;
Christoph Hellwig81f40042019-06-28 19:28:17 -0700467}
468
469/* Process a free extent. */
470STATIC int
471xfs_extent_free_finish_item(
472 struct xfs_trans *tp,
Christoph Hellwigf09d1672020-04-30 12:52:22 -0700473 struct xfs_log_item *done,
Christoph Hellwig81f40042019-06-28 19:28:17 -0700474 struct list_head *item,
Christoph Hellwig3ec1b262020-04-30 12:52:22 -0700475 struct xfs_btree_cur **state)
Christoph Hellwig81f40042019-06-28 19:28:17 -0700476{
Darrick J. Wongb3b5ff42021-10-12 15:55:54 -0700477 struct xfs_owner_info oinfo = { };
Christoph Hellwig81f40042019-06-28 19:28:17 -0700478 struct xfs_extent_free_item *free;
479 int error;
480
481 free = container_of(item, struct xfs_extent_free_item, xefi_list);
Darrick J. Wongb3b5ff42021-10-12 15:55:54 -0700482 oinfo.oi_owner = free->xefi_owner;
483 if (free->xefi_flags & XFS_EFI_ATTR_FORK)
484 oinfo.oi_flags |= XFS_OWNER_INFO_ATTR_FORK;
485 if (free->xefi_flags & XFS_EFI_BMBT_BLOCK)
486 oinfo.oi_flags |= XFS_OWNER_INFO_BMBT_BLOCK;
Christoph Hellwigf09d1672020-04-30 12:52:22 -0700487 error = xfs_trans_free_extent(tp, EFD_ITEM(done),
Christoph Hellwig81f40042019-06-28 19:28:17 -0700488 free->xefi_startblock,
489 free->xefi_blockcount,
Darrick J. Wongb3b5ff42021-10-12 15:55:54 -0700490 &oinfo, free->xefi_flags & XFS_EFI_SKIP_DISCARD);
Darrick J. Wongc201d9c2021-10-12 14:17:01 -0700491 kmem_cache_free(xfs_extfree_item_cache, free);
Christoph Hellwig81f40042019-06-28 19:28:17 -0700492 return error;
493}
494
495/* Abort all pending EFIs. */
496STATIC void
497xfs_extent_free_abort_intent(
Christoph Hellwig13a83332020-04-30 12:52:21 -0700498 struct xfs_log_item *intent)
Christoph Hellwig81f40042019-06-28 19:28:17 -0700499{
Christoph Hellwig13a83332020-04-30 12:52:21 -0700500 xfs_efi_release(EFI_ITEM(intent));
Christoph Hellwig81f40042019-06-28 19:28:17 -0700501}
502
503/* Cancel a free extent. */
504STATIC void
505xfs_extent_free_cancel_item(
506 struct list_head *item)
507{
508 struct xfs_extent_free_item *free;
509
510 free = container_of(item, struct xfs_extent_free_item, xefi_list);
Darrick J. Wongc201d9c2021-10-12 14:17:01 -0700511 kmem_cache_free(xfs_extfree_item_cache, free);
Christoph Hellwig81f40042019-06-28 19:28:17 -0700512}
513
514const struct xfs_defer_op_type xfs_extent_free_defer_type = {
515 .max_items = XFS_EFI_MAX_FAST_EXTENTS,
Christoph Hellwig81f40042019-06-28 19:28:17 -0700516 .create_intent = xfs_extent_free_create_intent,
517 .abort_intent = xfs_extent_free_abort_intent,
Christoph Hellwig81f40042019-06-28 19:28:17 -0700518 .create_done = xfs_extent_free_create_done,
519 .finish_item = xfs_extent_free_finish_item,
520 .cancel_item = xfs_extent_free_cancel_item,
521};
522
523/*
524 * AGFL blocks are accounted differently in the reserve pools and are not
525 * inserted into the busy extent list.
526 */
527STATIC int
528xfs_agfl_free_finish_item(
529 struct xfs_trans *tp,
Christoph Hellwigf09d1672020-04-30 12:52:22 -0700530 struct xfs_log_item *done,
Christoph Hellwig81f40042019-06-28 19:28:17 -0700531 struct list_head *item,
Christoph Hellwig3ec1b262020-04-30 12:52:22 -0700532 struct xfs_btree_cur **state)
Christoph Hellwig81f40042019-06-28 19:28:17 -0700533{
Darrick J. Wongb3b5ff42021-10-12 15:55:54 -0700534 struct xfs_owner_info oinfo = { };
Christoph Hellwig81f40042019-06-28 19:28:17 -0700535 struct xfs_mount *mp = tp->t_mountp;
Christoph Hellwigf09d1672020-04-30 12:52:22 -0700536 struct xfs_efd_log_item *efdp = EFD_ITEM(done);
Christoph Hellwig81f40042019-06-28 19:28:17 -0700537 struct xfs_extent_free_item *free;
538 struct xfs_extent *extp;
539 struct xfs_buf *agbp;
540 int error;
541 xfs_agnumber_t agno;
542 xfs_agblock_t agbno;
543 uint next_extent;
544
545 free = container_of(item, struct xfs_extent_free_item, xefi_list);
546 ASSERT(free->xefi_blockcount == 1);
547 agno = XFS_FSB_TO_AGNO(mp, free->xefi_startblock);
548 agbno = XFS_FSB_TO_AGBNO(mp, free->xefi_startblock);
Darrick J. Wongb3b5ff42021-10-12 15:55:54 -0700549 oinfo.oi_owner = free->xefi_owner;
Christoph Hellwig81f40042019-06-28 19:28:17 -0700550
551 trace_xfs_agfl_free_deferred(mp, agno, 0, agbno, free->xefi_blockcount);
552
553 error = xfs_alloc_read_agf(mp, tp, agno, 0, &agbp);
554 if (!error)
Darrick J. Wongb3b5ff42021-10-12 15:55:54 -0700555 error = xfs_free_agfl_block(tp, agno, agbno, agbp, &oinfo);
Christoph Hellwig81f40042019-06-28 19:28:17 -0700556
557 /*
558 * Mark the transaction dirty, even on error. This ensures the
559 * transaction is aborted, which:
560 *
561 * 1.) releases the EFI and frees the EFD
562 * 2.) shuts down the filesystem
563 */
564 tp->t_flags |= XFS_TRANS_DIRTY;
565 set_bit(XFS_LI_DIRTY, &efdp->efd_item.li_flags);
566
567 next_extent = efdp->efd_next_extent;
568 ASSERT(next_extent < efdp->efd_format.efd_nextents);
569 extp = &(efdp->efd_format.efd_extents[next_extent]);
570 extp->ext_start = free->xefi_startblock;
571 extp->ext_len = free->xefi_blockcount;
572 efdp->efd_next_extent++;
573
Darrick J. Wongc201d9c2021-10-12 14:17:01 -0700574 kmem_cache_free(xfs_extfree_item_cache, free);
Christoph Hellwig81f40042019-06-28 19:28:17 -0700575 return error;
576}
577
578/* sub-type with special handling for AGFL deferred frees */
579const struct xfs_defer_op_type xfs_agfl_free_defer_type = {
580 .max_items = XFS_EFI_MAX_FAST_EXTENTS,
Christoph Hellwig81f40042019-06-28 19:28:17 -0700581 .create_intent = xfs_extent_free_create_intent,
582 .abort_intent = xfs_extent_free_abort_intent,
Christoph Hellwig81f40042019-06-28 19:28:17 -0700583 .create_done = xfs_extent_free_create_done,
584 .finish_item = xfs_agfl_free_finish_item,
585 .cancel_item = xfs_extent_free_cancel_item,
586};
587
Darrick J. Wong3c15df32020-11-29 16:33:38 -0800588/* Is this recovered EFI ok? */
589static inline bool
590xfs_efi_validate_ext(
591 struct xfs_mount *mp,
592 struct xfs_extent *extp)
593{
Darrick J. Wong67457eb2020-12-04 13:20:00 -0800594 return xfs_verify_fsbext(mp, extp->ext_start, extp->ext_len);
Darrick J. Wong3c15df32020-11-29 16:33:38 -0800595}
596
Christoph Hellwig81f40042019-06-28 19:28:17 -0700597/*
Darrick J. Wongdc42375d2016-08-03 11:23:49 +1000598 * Process an extent free intent item that was recovered from
599 * the log. We need to free the extents that it describes.
600 */
Darrick J. Wong10d0c6e2020-05-01 16:00:50 -0700601STATIC int
Darrick J. Wong96b60f82020-05-01 16:00:55 -0700602xfs_efi_item_recover(
603 struct xfs_log_item *lip,
Darrick J. Wonge6fff812020-09-25 17:39:37 -0700604 struct list_head *capture_list)
Darrick J. Wongdc42375d2016-08-03 11:23:49 +1000605{
Darrick J. Wong96b60f82020-05-01 16:00:55 -0700606 struct xfs_efi_log_item *efip = EFI_ITEM(lip);
Dave Chinnerd86142d2022-03-17 09:09:12 -0700607 struct xfs_mount *mp = lip->li_log->l_mp;
Darrick J. Wong96b60f82020-05-01 16:00:55 -0700608 struct xfs_efd_log_item *efdp;
609 struct xfs_trans *tp;
610 struct xfs_extent *extp;
Darrick J. Wong96b60f82020-05-01 16:00:55 -0700611 int i;
612 int error = 0;
Darrick J. Wongdc42375d2016-08-03 11:23:49 +1000613
Darrick J. Wongdc42375d2016-08-03 11:23:49 +1000614 /*
615 * First check the validity of the extents described by the
616 * EFI. If any are bad, then assume that all are bad and
617 * just toss the EFI.
618 */
619 for (i = 0; i < efip->efi_format.efi_nextents; i++) {
Darrick J. Wong3c15df32020-11-29 16:33:38 -0800620 if (!xfs_efi_validate_ext(mp,
621 &efip->efi_format.efi_extents[i])) {
622 XFS_CORRUPTION_ERROR(__func__, XFS_ERRLEVEL_LOW, mp,
623 &efip->efi_format,
624 sizeof(efip->efi_format));
Darrick J. Wong895e1962019-11-06 09:17:43 -0800625 return -EFSCORRUPTED;
Darrick J. Wong3c15df32020-11-29 16:33:38 -0800626 }
Darrick J. Wongdc42375d2016-08-03 11:23:49 +1000627 }
628
629 error = xfs_trans_alloc(mp, &M_RES(mp)->tr_itruncate, 0, 0, 0, &tp);
630 if (error)
631 return error;
632 efdp = xfs_trans_get_efd(tp, efip, efip->efi_format.efi_nextents);
633
634 for (i = 0; i < efip->efi_format.efi_nextents; i++) {
Darrick J. Wonge127faf2016-08-03 12:29:32 +1000635 extp = &efip->efi_format.efi_extents[i];
Darrick J. Wongdc42375d2016-08-03 11:23:49 +1000636 error = xfs_trans_free_extent(tp, efdp, extp->ext_start,
Darrick J. Wong7280fed2018-12-12 08:46:23 -0800637 extp->ext_len,
638 &XFS_RMAP_OINFO_ANY_OWNER, false);
Darrick J. Wong43059d52021-08-06 11:06:35 -0700639 if (error == -EFSCORRUPTED)
640 XFS_CORRUPTION_ERROR(__func__, XFS_ERRLEVEL_LOW, mp,
641 extp, sizeof(*extp));
Darrick J. Wongdc42375d2016-08-03 11:23:49 +1000642 if (error)
643 goto abort_error;
644
645 }
646
Darrick J. Wong512edfa2021-09-16 17:28:07 -0700647 return xfs_defer_ops_capture_and_commit(tp, capture_list);
Darrick J. Wongdc42375d2016-08-03 11:23:49 +1000648
649abort_error:
650 xfs_trans_cancel(tp);
651 return error;
652}
Darrick J. Wong86ffa472020-05-01 16:00:45 -0700653
Darrick J. Wong154c7332020-05-01 16:00:54 -0700654STATIC bool
655xfs_efi_item_match(
656 struct xfs_log_item *lip,
657 uint64_t intent_id)
658{
659 return EFI_ITEM(lip)->efi_format.efi_id == intent_id;
660}
661
Darrick J. Wong4e919af2020-09-27 16:18:13 -0700662/* Relog an intent item to push the log tail forward. */
663static struct xfs_log_item *
664xfs_efi_item_relog(
665 struct xfs_log_item *intent,
666 struct xfs_trans *tp)
667{
668 struct xfs_efd_log_item *efdp;
669 struct xfs_efi_log_item *efip;
670 struct xfs_extent *extp;
671 unsigned int count;
672
673 count = EFI_ITEM(intent)->efi_format.efi_nextents;
674 extp = EFI_ITEM(intent)->efi_format.efi_extents;
675
676 tp->t_flags |= XFS_TRANS_DIRTY;
677 efdp = xfs_trans_get_efd(tp, EFI_ITEM(intent), count);
678 efdp->efd_next_extent = count;
679 memcpy(efdp->efd_format.efd_extents, extp, count * sizeof(*extp));
680 set_bit(XFS_LI_DIRTY, &efdp->efd_item.li_flags);
681
682 efip = xfs_efi_init(tp->t_mountp, count);
683 memcpy(efip->efi_format.efi_extents, extp, count * sizeof(*extp));
684 atomic_set(&efip->efi_next_extent, count);
685 xfs_trans_add_item(tp, &efip->efi_item);
686 set_bit(XFS_LI_DIRTY, &efip->efi_item.li_flags);
687 return &efip->efi_item;
688}
689
Darrick J. Wong10d0c6e2020-05-01 16:00:50 -0700690static const struct xfs_item_ops xfs_efi_item_ops = {
691 .iop_size = xfs_efi_item_size,
692 .iop_format = xfs_efi_item_format,
693 .iop_unpin = xfs_efi_item_unpin,
694 .iop_release = xfs_efi_item_release,
695 .iop_recover = xfs_efi_item_recover,
Darrick J. Wong154c7332020-05-01 16:00:54 -0700696 .iop_match = xfs_efi_item_match,
Darrick J. Wong4e919af2020-09-27 16:18:13 -0700697 .iop_relog = xfs_efi_item_relog,
Darrick J. Wong10d0c6e2020-05-01 16:00:50 -0700698};
699
Darrick J. Wong9817aa82020-05-01 16:00:48 -0700700/*
701 * This routine is called to create an in-core extent free intent
702 * item from the efi format structure which was logged on disk.
703 * It allocates an in-core efi, copies the extents from the format
704 * structure into it, and adds the efi to the AIL with the given
705 * LSN.
706 */
707STATIC int
708xlog_recover_efi_commit_pass2(
709 struct xlog *log,
710 struct list_head *buffer_list,
711 struct xlog_recover_item *item,
712 xfs_lsn_t lsn)
713{
714 struct xfs_mount *mp = log->l_mp;
715 struct xfs_efi_log_item *efip;
716 struct xfs_efi_log_format *efi_formatp;
717 int error;
718
719 efi_formatp = item->ri_buf[0].i_addr;
720
721 efip = xfs_efi_init(mp, efi_formatp->efi_nextents);
722 error = xfs_efi_copy_format(&item->ri_buf[0], &efip->efi_format);
723 if (error) {
724 xfs_efi_item_free(efip);
725 return error;
726 }
727 atomic_set(&efip->efi_next_extent, efi_formatp->efi_nextents);
Darrick J. Wong9817aa82020-05-01 16:00:48 -0700728 /*
Darrick J. Wong86a37172020-05-01 16:00:54 -0700729 * Insert the intent into the AIL directly and drop one reference so
730 * that finishing or canceling the work will drop the other.
Darrick J. Wong9817aa82020-05-01 16:00:48 -0700731 */
Darrick J. Wong86a37172020-05-01 16:00:54 -0700732 xfs_trans_ail_insert(log->l_ailp, &efip->efi_item, lsn);
Darrick J. Wong9817aa82020-05-01 16:00:48 -0700733 xfs_efi_release(efip);
734 return 0;
735}
736
Darrick J. Wong86ffa472020-05-01 16:00:45 -0700737const struct xlog_recover_item_ops xlog_efi_item_ops = {
738 .item_type = XFS_LI_EFI,
Darrick J. Wong9817aa82020-05-01 16:00:48 -0700739 .commit_pass2 = xlog_recover_efi_commit_pass2,
Darrick J. Wong86ffa472020-05-01 16:00:45 -0700740};
741
Darrick J. Wong9817aa82020-05-01 16:00:48 -0700742/*
743 * This routine is called when an EFD format structure is found in a committed
744 * transaction in the log. Its purpose is to cancel the corresponding EFI if it
745 * was still in the log. To do this it searches the AIL for the EFI with an id
746 * equal to that in the EFD format structure. If we find it we drop the EFD
747 * reference, which removes the EFI from the AIL and frees it.
748 */
749STATIC int
750xlog_recover_efd_commit_pass2(
751 struct xlog *log,
752 struct list_head *buffer_list,
753 struct xlog_recover_item *item,
754 xfs_lsn_t lsn)
755{
Darrick J. Wong9817aa82020-05-01 16:00:48 -0700756 struct xfs_efd_log_format *efd_formatp;
Darrick J. Wong9817aa82020-05-01 16:00:48 -0700757
758 efd_formatp = item->ri_buf[0].i_addr;
759 ASSERT((item->ri_buf[0].i_len == (sizeof(xfs_efd_log_format_32_t) +
760 ((efd_formatp->efd_nextents - 1) * sizeof(xfs_extent_32_t)))) ||
761 (item->ri_buf[0].i_len == (sizeof(xfs_efd_log_format_64_t) +
762 ((efd_formatp->efd_nextents - 1) * sizeof(xfs_extent_64_t)))));
Darrick J. Wong9817aa82020-05-01 16:00:48 -0700763
Darrick J. Wong154c7332020-05-01 16:00:54 -0700764 xlog_recover_release_intent(log, XFS_LI_EFI, efd_formatp->efd_efi_id);
Darrick J. Wong9817aa82020-05-01 16:00:48 -0700765 return 0;
766}
767
Darrick J. Wong86ffa472020-05-01 16:00:45 -0700768const struct xlog_recover_item_ops xlog_efd_item_ops = {
769 .item_type = XFS_LI_EFD,
Darrick J. Wong9817aa82020-05-01 16:00:48 -0700770 .commit_pass2 = xlog_recover_efd_commit_pass2,
Darrick J. Wong86ffa472020-05-01 16:00:45 -0700771};