Dave Chinner | 0b61f8a | 2018-06-05 19:42:14 -0700 | [diff] [blame] | 1 | // SPDX-License-Identifier: GPL-2.0 |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2 | /* |
Nathan Scott | 7b71876 | 2005-11-02 14:58:39 +1100 | [diff] [blame] | 3 | * Copyright (c) 2000-2001,2005 Silicon Graphics, Inc. |
| 4 | * All Rights Reserved. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5 | */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 6 | #include "xfs.h" |
Nathan Scott | a844f45 | 2005-11-02 14:38:42 +1100 | [diff] [blame] | 7 | #include "xfs_fs.h" |
Christoph Hellwig | 4fb6e8a | 2014-11-28 14:25:04 +1100 | [diff] [blame] | 8 | #include "xfs_format.h" |
Dave Chinner | 239880e | 2013-10-23 10:50:10 +1100 | [diff] [blame] | 9 | #include "xfs_log_format.h" |
| 10 | #include "xfs_trans_resv.h" |
Darrick J. Wong | dc42375d | 2016-08-03 11:23:49 +1000 | [diff] [blame] | 11 | #include "xfs_bit.h" |
Darrick J. Wong | 5467b34 | 2019-06-28 19:25:35 -0700 | [diff] [blame] | 12 | #include "xfs_shared.h" |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 13 | #include "xfs_mount.h" |
Dave Chinner | 08d3e84 | 2022-07-07 19:07:40 +1000 | [diff] [blame] | 14 | #include "xfs_ag.h" |
Christoph Hellwig | 81f4004 | 2019-06-28 19:28:17 -0700 | [diff] [blame] | 15 | #include "xfs_defer.h" |
Dave Chinner | 239880e | 2013-10-23 10:50:10 +1100 | [diff] [blame] | 16 | #include "xfs_trans.h" |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 17 | #include "xfs_trans_priv.h" |
| 18 | #include "xfs_extfree_item.h" |
Christoph Hellwig | 1234351 | 2013-12-13 11:00:43 +1100 | [diff] [blame] | 19 | #include "xfs_log.h" |
Darrick J. Wong | 340785c | 2016-08-03 11:33:42 +1000 | [diff] [blame] | 20 | #include "xfs_btree.h" |
| 21 | #include "xfs_rmap.h" |
Christoph Hellwig | 81f4004 | 2019-06-28 19:28:17 -0700 | [diff] [blame] | 22 | #include "xfs_alloc.h" |
| 23 | #include "xfs_bmap.h" |
| 24 | #include "xfs_trace.h" |
Darrick J. Wong | a5155b8 | 2019-11-02 09:40:53 -0700 | [diff] [blame] | 25 | #include "xfs_error.h" |
Darrick J. Wong | 9817aa8 | 2020-05-01 16:00:48 -0700 | [diff] [blame] | 26 | #include "xfs_log_priv.h" |
Darrick J. Wong | 86ffa47 | 2020-05-01 16:00:45 -0700 | [diff] [blame] | 27 | #include "xfs_log_recover.h" |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 28 | |
Darrick J. Wong | 182696f | 2021-10-12 11:09:23 -0700 | [diff] [blame] | 29 | struct kmem_cache *xfs_efi_cache; |
| 30 | struct kmem_cache *xfs_efd_cache; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 31 | |
Darrick J. Wong | 10d0c6e | 2020-05-01 16:00:50 -0700 | [diff] [blame] | 32 | static const struct xfs_item_ops xfs_efi_item_ops; |
| 33 | |
Christoph Hellwig | 7bfa31d | 2010-06-23 18:11:15 +1000 | [diff] [blame] | 34 | static inline struct xfs_efi_log_item *EFI_ITEM(struct xfs_log_item *lip) |
| 35 | { |
| 36 | return container_of(lip, struct xfs_efi_log_item, efi_item); |
| 37 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 38 | |
Darrick J. Wong | 9817aa8 | 2020-05-01 16:00:48 -0700 | [diff] [blame] | 39 | STATIC void |
Christoph Hellwig | 7bfa31d | 2010-06-23 18:11:15 +1000 | [diff] [blame] | 40 | xfs_efi_item_free( |
| 41 | struct xfs_efi_log_item *efip) |
Christoph Hellwig | 7d795ca | 2005-06-21 15:41:19 +1000 | [diff] [blame] | 42 | { |
Dave Chinner | b1c5ebb | 2016-07-22 09:52:35 +1000 | [diff] [blame] | 43 | kmem_free(efip->efi_item.li_lv_shadow); |
Christoph Hellwig | 7bfa31d | 2010-06-23 18:11:15 +1000 | [diff] [blame] | 44 | if (efip->efi_format.efi_nextents > XFS_EFI_MAX_FAST_EXTENTS) |
Denys Vlasenko | f0e2d93 | 2008-05-19 16:31:57 +1000 | [diff] [blame] | 45 | kmem_free(efip); |
Christoph Hellwig | 7bfa31d | 2010-06-23 18:11:15 +1000 | [diff] [blame] | 46 | else |
Darrick J. Wong | 182696f | 2021-10-12 11:09:23 -0700 | [diff] [blame] | 47 | kmem_cache_free(xfs_efi_cache, efip); |
Christoph Hellwig | 7d795ca | 2005-06-21 15:41:19 +1000 | [diff] [blame] | 48 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 49 | |
| 50 | /* |
Dave Chinner | 0612d11 | 2018-04-02 20:08:27 -0700 | [diff] [blame] | 51 | * Freeing the efi requires that we remove it from the AIL if it has already |
| 52 | * been placed there. However, the EFI may not yet have been placed in the AIL |
| 53 | * when called by xfs_efi_release() from EFD processing due to the ordering of |
| 54 | * committed vs unpin operations in bulk insert operations. Hence the reference |
| 55 | * count to ensure only the last caller frees the EFI. |
| 56 | */ |
Darrick J. Wong | 10d0c6e | 2020-05-01 16:00:50 -0700 | [diff] [blame] | 57 | STATIC void |
Dave Chinner | 0612d11 | 2018-04-02 20:08:27 -0700 | [diff] [blame] | 58 | xfs_efi_release( |
| 59 | struct xfs_efi_log_item *efip) |
| 60 | { |
| 61 | ASSERT(atomic_read(&efip->efi_refcount) > 0); |
Dave Chinner | 3512fc1 | 2022-05-04 11:46:47 +1000 | [diff] [blame] | 62 | if (!atomic_dec_and_test(&efip->efi_refcount)) |
| 63 | return; |
| 64 | |
| 65 | xfs_trans_ail_delete(&efip->efi_item, 0); |
| 66 | xfs_efi_item_free(efip); |
Dave Chinner | 0612d11 | 2018-04-02 20:08:27 -0700 | [diff] [blame] | 67 | } |
| 68 | |
Dave Chinner | 166d136 | 2013-08-12 20:50:04 +1000 | [diff] [blame] | 69 | STATIC void |
| 70 | xfs_efi_item_size( |
| 71 | struct xfs_log_item *lip, |
| 72 | int *nvecs, |
| 73 | int *nbytes) |
| 74 | { |
Darrick J. Wong | 3c5aaac | 2022-10-21 09:10:05 -0700 | [diff] [blame] | 75 | struct xfs_efi_log_item *efip = EFI_ITEM(lip); |
| 76 | |
Dave Chinner | 166d136 | 2013-08-12 20:50:04 +1000 | [diff] [blame] | 77 | *nvecs += 1; |
Darrick J. Wong | 3c5aaac | 2022-10-21 09:10:05 -0700 | [diff] [blame] | 78 | *nbytes += xfs_efi_log_format_sizeof(efip->efi_format.efi_nextents); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 79 | } |
| 80 | |
| 81 | /* |
| 82 | * This is called to fill in the vector of log iovecs for the |
| 83 | * given efi log item. We use only 1 iovec, and we point that |
| 84 | * at the efi_log_format structure embedded in the efi item. |
| 85 | * It is at this point that we assert that all of the extent |
| 86 | * slots in the efi item have been filled. |
| 87 | */ |
| 88 | STATIC void |
Christoph Hellwig | 7bfa31d | 2010-06-23 18:11:15 +1000 | [diff] [blame] | 89 | xfs_efi_item_format( |
| 90 | struct xfs_log_item *lip, |
Christoph Hellwig | bde7cff | 2013-12-13 11:34:02 +1100 | [diff] [blame] | 91 | struct xfs_log_vec *lv) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 92 | { |
Christoph Hellwig | 7bfa31d | 2010-06-23 18:11:15 +1000 | [diff] [blame] | 93 | struct xfs_efi_log_item *efip = EFI_ITEM(lip); |
Christoph Hellwig | bde7cff | 2013-12-13 11:34:02 +1100 | [diff] [blame] | 94 | struct xfs_log_iovec *vecp = NULL; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 95 | |
Dave Chinner | b199c8a | 2010-12-20 11:59:49 +1100 | [diff] [blame] | 96 | ASSERT(atomic_read(&efip->efi_next_extent) == |
| 97 | efip->efi_format.efi_nextents); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 98 | |
| 99 | efip->efi_format.efi_type = XFS_LI_EFI; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 100 | efip->efi_format.efi_size = 1; |
| 101 | |
Christoph Hellwig | bde7cff | 2013-12-13 11:34:02 +1100 | [diff] [blame] | 102 | xlog_copy_iovec(lv, &vecp, XLOG_REG_TYPE_EFI_FORMAT, |
Christoph Hellwig | 1234351 | 2013-12-13 11:00:43 +1100 | [diff] [blame] | 103 | &efip->efi_format, |
Darrick J. Wong | 3c5aaac | 2022-10-21 09:10:05 -0700 | [diff] [blame] | 104 | xfs_efi_log_format_sizeof(efip->efi_format.efi_nextents)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 105 | } |
| 106 | |
| 107 | |
| 108 | /* |
Brian Foster | 8d99fe9 | 2015-08-19 09:51:16 +1000 | [diff] [blame] | 109 | * The unpin operation is the last place an EFI is manipulated in the log. It is |
| 110 | * either inserted in the AIL or aborted in the event of a log I/O error. In |
| 111 | * either case, the EFI transaction has been successfully committed to make it |
| 112 | * this far. Therefore, we expect whoever committed the EFI to either construct |
| 113 | * and commit the EFD or drop the EFD's reference in the event of error. Simply |
| 114 | * drop the log's EFI reference now that the log is done with it. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 115 | */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 116 | STATIC void |
Christoph Hellwig | 7bfa31d | 2010-06-23 18:11:15 +1000 | [diff] [blame] | 117 | xfs_efi_item_unpin( |
| 118 | struct xfs_log_item *lip, |
| 119 | int remove) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 120 | { |
Christoph Hellwig | 7bfa31d | 2010-06-23 18:11:15 +1000 | [diff] [blame] | 121 | struct xfs_efi_log_item *efip = EFI_ITEM(lip); |
Brian Foster | 5e4b538 | 2015-08-19 09:50:12 +1000 | [diff] [blame] | 122 | xfs_efi_release(efip); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 123 | } |
| 124 | |
| 125 | /* |
Brian Foster | 8d99fe9 | 2015-08-19 09:51:16 +1000 | [diff] [blame] | 126 | * The EFI has been either committed or aborted if the transaction has been |
| 127 | * cancelled. If the transaction was cancelled, an EFD isn't going to be |
| 128 | * constructed and thus we free the EFI here directly. |
| 129 | */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 130 | STATIC void |
Christoph Hellwig | ddf9205 | 2019-06-28 19:27:32 -0700 | [diff] [blame] | 131 | xfs_efi_item_release( |
Christoph Hellwig | 7bfa31d | 2010-06-23 18:11:15 +1000 | [diff] [blame] | 132 | struct xfs_log_item *lip) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 133 | { |
Christoph Hellwig | ddf9205 | 2019-06-28 19:27:32 -0700 | [diff] [blame] | 134 | xfs_efi_release(EFI_ITEM(lip)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 135 | } |
| 136 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 137 | /* |
| 138 | * Allocate and initialize an efi item with the given number of extents. |
| 139 | */ |
Darrick J. Wong | 9817aa8 | 2020-05-01 16:00:48 -0700 | [diff] [blame] | 140 | STATIC struct xfs_efi_log_item * |
Christoph Hellwig | 7bfa31d | 2010-06-23 18:11:15 +1000 | [diff] [blame] | 141 | xfs_efi_init( |
| 142 | struct xfs_mount *mp, |
| 143 | uint nextents) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 144 | |
| 145 | { |
Christoph Hellwig | 7bfa31d | 2010-06-23 18:11:15 +1000 | [diff] [blame] | 146 | struct xfs_efi_log_item *efip; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 147 | |
| 148 | ASSERT(nextents > 0); |
| 149 | if (nextents > XFS_EFI_MAX_FAST_EXTENTS) { |
Darrick J. Wong | 3c5aaac | 2022-10-21 09:10:05 -0700 | [diff] [blame] | 150 | efip = kzalloc(xfs_efi_log_item_sizeof(nextents), |
| 151 | GFP_KERNEL | __GFP_NOFAIL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 152 | } else { |
Darrick J. Wong | 182696f | 2021-10-12 11:09:23 -0700 | [diff] [blame] | 153 | efip = kmem_cache_zalloc(xfs_efi_cache, |
Carlos Maiolino | 32a2b11 | 2020-07-22 09:23:10 -0700 | [diff] [blame] | 154 | GFP_KERNEL | __GFP_NOFAIL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 155 | } |
| 156 | |
Dave Chinner | 43f5efc | 2010-03-23 10:10:00 +1100 | [diff] [blame] | 157 | xfs_log_item_init(mp, &efip->efi_item, XFS_LI_EFI, &xfs_efi_item_ops); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 158 | efip->efi_format.efi_nextents = nextents; |
Christoph Hellwig | db9d67d | 2015-06-22 09:43:32 +1000 | [diff] [blame] | 159 | efip->efi_format.efi_id = (uintptr_t)(void *)efip; |
Dave Chinner | b199c8a | 2010-12-20 11:59:49 +1100 | [diff] [blame] | 160 | atomic_set(&efip->efi_next_extent, 0); |
Dave Chinner | 666d644 | 2013-04-03 14:09:21 +1100 | [diff] [blame] | 161 | atomic_set(&efip->efi_refcount, 2); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 162 | |
Christoph Hellwig | 7bfa31d | 2010-06-23 18:11:15 +1000 | [diff] [blame] | 163 | return efip; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 164 | } |
| 165 | |
| 166 | /* |
Tim Shimmin | 6d192a9 | 2006-06-09 14:55:38 +1000 | [diff] [blame] | 167 | * Copy an EFI format buffer from the given buf, and into the destination |
| 168 | * EFI format structure. |
| 169 | * The given buffer can be in 32 bit or 64 bit form (which has different padding), |
| 170 | * one of which will be the native format for this kernel. |
| 171 | * It will handle the conversion of formats if necessary. |
| 172 | */ |
Darrick J. Wong | 9817aa8 | 2020-05-01 16:00:48 -0700 | [diff] [blame] | 173 | STATIC int |
Tim Shimmin | 6d192a9 | 2006-06-09 14:55:38 +1000 | [diff] [blame] | 174 | xfs_efi_copy_format(xfs_log_iovec_t *buf, xfs_efi_log_format_t *dst_efi_fmt) |
| 175 | { |
Christoph Hellwig | 4e0d5f9 | 2010-06-23 18:11:15 +1000 | [diff] [blame] | 176 | xfs_efi_log_format_t *src_efi_fmt = buf->i_addr; |
Tim Shimmin | 6d192a9 | 2006-06-09 14:55:38 +1000 | [diff] [blame] | 177 | uint i; |
Darrick J. Wong | 3c5aaac | 2022-10-21 09:10:05 -0700 | [diff] [blame] | 178 | uint len = xfs_efi_log_format_sizeof(src_efi_fmt->efi_nextents); |
| 179 | uint len32 = xfs_efi_log_format32_sizeof(src_efi_fmt->efi_nextents); |
| 180 | uint len64 = xfs_efi_log_format64_sizeof(src_efi_fmt->efi_nextents); |
Tim Shimmin | 6d192a9 | 2006-06-09 14:55:38 +1000 | [diff] [blame] | 181 | |
| 182 | if (buf->i_len == len) { |
Darrick J. Wong | 03a7485 | 2022-10-20 16:39:59 -0700 | [diff] [blame] | 183 | memcpy(dst_efi_fmt, src_efi_fmt, |
| 184 | offsetof(struct xfs_efi_log_format, efi_extents)); |
| 185 | for (i = 0; i < src_efi_fmt->efi_nextents; i++) |
| 186 | memcpy(&dst_efi_fmt->efi_extents[i], |
| 187 | &src_efi_fmt->efi_extents[i], |
| 188 | sizeof(struct xfs_extent)); |
Tim Shimmin | 6d192a9 | 2006-06-09 14:55:38 +1000 | [diff] [blame] | 189 | return 0; |
| 190 | } else if (buf->i_len == len32) { |
Christoph Hellwig | 4e0d5f9 | 2010-06-23 18:11:15 +1000 | [diff] [blame] | 191 | xfs_efi_log_format_32_t *src_efi_fmt_32 = buf->i_addr; |
Tim Shimmin | 6d192a9 | 2006-06-09 14:55:38 +1000 | [diff] [blame] | 192 | |
| 193 | dst_efi_fmt->efi_type = src_efi_fmt_32->efi_type; |
| 194 | dst_efi_fmt->efi_size = src_efi_fmt_32->efi_size; |
| 195 | dst_efi_fmt->efi_nextents = src_efi_fmt_32->efi_nextents; |
| 196 | dst_efi_fmt->efi_id = src_efi_fmt_32->efi_id; |
| 197 | for (i = 0; i < dst_efi_fmt->efi_nextents; i++) { |
| 198 | dst_efi_fmt->efi_extents[i].ext_start = |
| 199 | src_efi_fmt_32->efi_extents[i].ext_start; |
| 200 | dst_efi_fmt->efi_extents[i].ext_len = |
| 201 | src_efi_fmt_32->efi_extents[i].ext_len; |
| 202 | } |
| 203 | return 0; |
| 204 | } else if (buf->i_len == len64) { |
Christoph Hellwig | 4e0d5f9 | 2010-06-23 18:11:15 +1000 | [diff] [blame] | 205 | xfs_efi_log_format_64_t *src_efi_fmt_64 = buf->i_addr; |
Tim Shimmin | 6d192a9 | 2006-06-09 14:55:38 +1000 | [diff] [blame] | 206 | |
| 207 | dst_efi_fmt->efi_type = src_efi_fmt_64->efi_type; |
| 208 | dst_efi_fmt->efi_size = src_efi_fmt_64->efi_size; |
| 209 | dst_efi_fmt->efi_nextents = src_efi_fmt_64->efi_nextents; |
| 210 | dst_efi_fmt->efi_id = src_efi_fmt_64->efi_id; |
| 211 | for (i = 0; i < dst_efi_fmt->efi_nextents; i++) { |
| 212 | dst_efi_fmt->efi_extents[i].ext_start = |
| 213 | src_efi_fmt_64->efi_extents[i].ext_start; |
| 214 | dst_efi_fmt->efi_extents[i].ext_len = |
| 215 | src_efi_fmt_64->efi_extents[i].ext_len; |
| 216 | } |
| 217 | return 0; |
| 218 | } |
Darrick J. Wong | 950f0d5 | 2022-10-25 15:07:14 -0700 | [diff] [blame] | 219 | XFS_CORRUPTION_ERROR(__func__, XFS_ERRLEVEL_LOW, NULL, buf->i_addr, |
| 220 | buf->i_len); |
Dave Chinner | 2451337 | 2014-06-25 14:58:08 +1000 | [diff] [blame] | 221 | return -EFSCORRUPTED; |
Tim Shimmin | 6d192a9 | 2006-06-09 14:55:38 +1000 | [diff] [blame] | 222 | } |
| 223 | |
Christoph Hellwig | 7bfa31d | 2010-06-23 18:11:15 +1000 | [diff] [blame] | 224 | static inline struct xfs_efd_log_item *EFD_ITEM(struct xfs_log_item *lip) |
Christoph Hellwig | 7d795ca | 2005-06-21 15:41:19 +1000 | [diff] [blame] | 225 | { |
Christoph Hellwig | 7bfa31d | 2010-06-23 18:11:15 +1000 | [diff] [blame] | 226 | return container_of(lip, struct xfs_efd_log_item, efd_item); |
| 227 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 228 | |
Christoph Hellwig | 7bfa31d | 2010-06-23 18:11:15 +1000 | [diff] [blame] | 229 | STATIC void |
| 230 | xfs_efd_item_free(struct xfs_efd_log_item *efdp) |
| 231 | { |
Dave Chinner | b1c5ebb | 2016-07-22 09:52:35 +1000 | [diff] [blame] | 232 | kmem_free(efdp->efd_item.li_lv_shadow); |
Christoph Hellwig | 7bfa31d | 2010-06-23 18:11:15 +1000 | [diff] [blame] | 233 | if (efdp->efd_format.efd_nextents > XFS_EFD_MAX_FAST_EXTENTS) |
Denys Vlasenko | f0e2d93 | 2008-05-19 16:31:57 +1000 | [diff] [blame] | 234 | kmem_free(efdp); |
Christoph Hellwig | 7bfa31d | 2010-06-23 18:11:15 +1000 | [diff] [blame] | 235 | else |
Darrick J. Wong | 182696f | 2021-10-12 11:09:23 -0700 | [diff] [blame] | 236 | kmem_cache_free(xfs_efd_cache, efdp); |
Christoph Hellwig | 7d795ca | 2005-06-21 15:41:19 +1000 | [diff] [blame] | 237 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 238 | |
Dave Chinner | 166d136 | 2013-08-12 20:50:04 +1000 | [diff] [blame] | 239 | STATIC void |
| 240 | xfs_efd_item_size( |
| 241 | struct xfs_log_item *lip, |
| 242 | int *nvecs, |
| 243 | int *nbytes) |
| 244 | { |
Darrick J. Wong | 3c5aaac | 2022-10-21 09:10:05 -0700 | [diff] [blame] | 245 | struct xfs_efd_log_item *efdp = EFD_ITEM(lip); |
| 246 | |
Dave Chinner | 166d136 | 2013-08-12 20:50:04 +1000 | [diff] [blame] | 247 | *nvecs += 1; |
Darrick J. Wong | 3c5aaac | 2022-10-21 09:10:05 -0700 | [diff] [blame] | 248 | *nbytes += xfs_efd_log_format_sizeof(efdp->efd_format.efd_nextents); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 249 | } |
| 250 | |
| 251 | /* |
| 252 | * This is called to fill in the vector of log iovecs for the |
| 253 | * given efd log item. We use only 1 iovec, and we point that |
| 254 | * at the efd_log_format structure embedded in the efd item. |
| 255 | * It is at this point that we assert that all of the extent |
| 256 | * slots in the efd item have been filled. |
| 257 | */ |
| 258 | STATIC void |
Christoph Hellwig | 7bfa31d | 2010-06-23 18:11:15 +1000 | [diff] [blame] | 259 | xfs_efd_item_format( |
| 260 | struct xfs_log_item *lip, |
Christoph Hellwig | bde7cff | 2013-12-13 11:34:02 +1100 | [diff] [blame] | 261 | struct xfs_log_vec *lv) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 262 | { |
Christoph Hellwig | 7bfa31d | 2010-06-23 18:11:15 +1000 | [diff] [blame] | 263 | struct xfs_efd_log_item *efdp = EFD_ITEM(lip); |
Christoph Hellwig | bde7cff | 2013-12-13 11:34:02 +1100 | [diff] [blame] | 264 | struct xfs_log_iovec *vecp = NULL; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 265 | |
| 266 | ASSERT(efdp->efd_next_extent == efdp->efd_format.efd_nextents); |
| 267 | |
| 268 | efdp->efd_format.efd_type = XFS_LI_EFD; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 269 | efdp->efd_format.efd_size = 1; |
| 270 | |
Christoph Hellwig | bde7cff | 2013-12-13 11:34:02 +1100 | [diff] [blame] | 271 | xlog_copy_iovec(lv, &vecp, XLOG_REG_TYPE_EFD_FORMAT, |
Christoph Hellwig | 1234351 | 2013-12-13 11:00:43 +1100 | [diff] [blame] | 272 | &efdp->efd_format, |
Darrick J. Wong | 3c5aaac | 2022-10-21 09:10:05 -0700 | [diff] [blame] | 273 | xfs_efd_log_format_sizeof(efdp->efd_format.efd_nextents)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 274 | } |
| 275 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 276 | /* |
Brian Foster | 8d99fe9 | 2015-08-19 09:51:16 +1000 | [diff] [blame] | 277 | * The EFD is either committed or aborted if the transaction is cancelled. If |
| 278 | * the transaction is cancelled, drop our reference to the EFI and free the EFD. |
| 279 | */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 280 | STATIC void |
Christoph Hellwig | ddf9205 | 2019-06-28 19:27:32 -0700 | [diff] [blame] | 281 | xfs_efd_item_release( |
Christoph Hellwig | 7bfa31d | 2010-06-23 18:11:15 +1000 | [diff] [blame] | 282 | struct xfs_log_item *lip) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 283 | { |
Brian Foster | 8d99fe9 | 2015-08-19 09:51:16 +1000 | [diff] [blame] | 284 | struct xfs_efd_log_item *efdp = EFD_ITEM(lip); |
| 285 | |
Christoph Hellwig | ddf9205 | 2019-06-28 19:27:32 -0700 | [diff] [blame] | 286 | xfs_efi_release(efdp->efd_efip); |
| 287 | xfs_efd_item_free(efdp); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 288 | } |
| 289 | |
Dave Chinner | c23ab60 | 2022-05-04 11:46:39 +1000 | [diff] [blame] | 290 | static struct xfs_log_item * |
| 291 | xfs_efd_item_intent( |
| 292 | struct xfs_log_item *lip) |
| 293 | { |
| 294 | return &EFD_ITEM(lip)->efd_efip->efi_item; |
| 295 | } |
| 296 | |
Christoph Hellwig | 272e42b | 2011-10-28 09:54:24 +0000 | [diff] [blame] | 297 | static const struct xfs_item_ops xfs_efd_item_ops = { |
Dave Chinner | f5b8120 | 2022-05-04 11:46:09 +1000 | [diff] [blame] | 298 | .flags = XFS_ITEM_RELEASE_WHEN_COMMITTED | |
| 299 | XFS_ITEM_INTENT_DONE, |
Christoph Hellwig | 7bfa31d | 2010-06-23 18:11:15 +1000 | [diff] [blame] | 300 | .iop_size = xfs_efd_item_size, |
| 301 | .iop_format = xfs_efd_item_format, |
Christoph Hellwig | ddf9205 | 2019-06-28 19:27:32 -0700 | [diff] [blame] | 302 | .iop_release = xfs_efd_item_release, |
Dave Chinner | c23ab60 | 2022-05-04 11:46:39 +1000 | [diff] [blame] | 303 | .iop_intent = xfs_efd_item_intent, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 304 | }; |
| 305 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 306 | /* |
Christoph Hellwig | 9c5e7c2 | 2019-06-28 19:27:35 -0700 | [diff] [blame] | 307 | * Allocate an "extent free done" log item that will hold nextents worth of |
| 308 | * extents. The caller must use all nextents extents, because we are not |
| 309 | * flexible about this at all. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 310 | */ |
Christoph Hellwig | 81f4004 | 2019-06-28 19:28:17 -0700 | [diff] [blame] | 311 | static struct xfs_efd_log_item * |
Christoph Hellwig | 9c5e7c2 | 2019-06-28 19:27:35 -0700 | [diff] [blame] | 312 | xfs_trans_get_efd( |
| 313 | struct xfs_trans *tp, |
| 314 | struct xfs_efi_log_item *efip, |
| 315 | unsigned int nextents) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 316 | { |
Christoph Hellwig | 9c5e7c2 | 2019-06-28 19:27:35 -0700 | [diff] [blame] | 317 | struct xfs_efd_log_item *efdp; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 318 | |
| 319 | ASSERT(nextents > 0); |
Christoph Hellwig | 9c5e7c2 | 2019-06-28 19:27:35 -0700 | [diff] [blame] | 320 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 321 | if (nextents > XFS_EFD_MAX_FAST_EXTENTS) { |
Darrick J. Wong | 3c5aaac | 2022-10-21 09:10:05 -0700 | [diff] [blame] | 322 | efdp = kzalloc(xfs_efd_log_item_sizeof(nextents), |
| 323 | GFP_KERNEL | __GFP_NOFAIL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 324 | } else { |
Darrick J. Wong | 182696f | 2021-10-12 11:09:23 -0700 | [diff] [blame] | 325 | efdp = kmem_cache_zalloc(xfs_efd_cache, |
Carlos Maiolino | 32a2b11 | 2020-07-22 09:23:10 -0700 | [diff] [blame] | 326 | GFP_KERNEL | __GFP_NOFAIL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 327 | } |
| 328 | |
Christoph Hellwig | 9c5e7c2 | 2019-06-28 19:27:35 -0700 | [diff] [blame] | 329 | xfs_log_item_init(tp->t_mountp, &efdp->efd_item, XFS_LI_EFD, |
| 330 | &xfs_efd_item_ops); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 331 | efdp->efd_efip = efip; |
| 332 | efdp->efd_format.efd_nextents = nextents; |
| 333 | efdp->efd_format.efd_efi_id = efip->efi_format.efi_id; |
| 334 | |
Christoph Hellwig | 9c5e7c2 | 2019-06-28 19:27:35 -0700 | [diff] [blame] | 335 | xfs_trans_add_item(tp, &efdp->efd_item); |
Christoph Hellwig | 7bfa31d | 2010-06-23 18:11:15 +1000 | [diff] [blame] | 336 | return efdp; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 337 | } |
Darrick J. Wong | dc42375d | 2016-08-03 11:23:49 +1000 | [diff] [blame] | 338 | |
| 339 | /* |
Dave Chinner | 0853b5de | 2023-06-28 11:04:33 -0700 | [diff] [blame] | 340 | * Fill the EFD with all extents from the EFI when we need to roll the |
| 341 | * transaction and continue with a new EFI. |
| 342 | * |
| 343 | * This simply copies all the extents in the EFI to the EFD rather than make |
| 344 | * assumptions about which extents in the EFI have already been processed. We |
| 345 | * currently keep the xefi list in the same order as the EFI extent list, but |
| 346 | * that may not always be the case. Copying everything avoids leaving a landmine |
| 347 | * were we fail to cancel all the extents in an EFI if the xefi list is |
| 348 | * processed in a different order to the extents in the EFI. |
| 349 | */ |
| 350 | static void |
| 351 | xfs_efd_from_efi( |
| 352 | struct xfs_efd_log_item *efdp) |
| 353 | { |
| 354 | struct xfs_efi_log_item *efip = efdp->efd_efip; |
| 355 | uint i; |
| 356 | |
| 357 | ASSERT(efip->efi_format.efi_nextents > 0); |
| 358 | ASSERT(efdp->efd_next_extent < efip->efi_format.efi_nextents); |
| 359 | |
| 360 | for (i = 0; i < efip->efi_format.efi_nextents; i++) { |
| 361 | efdp->efd_format.efd_extents[i] = |
| 362 | efip->efi_format.efi_extents[i]; |
| 363 | } |
| 364 | efdp->efd_next_extent = efip->efi_format.efi_nextents; |
| 365 | } |
| 366 | |
| 367 | /* |
Christoph Hellwig | 81f4004 | 2019-06-28 19:28:17 -0700 | [diff] [blame] | 368 | * Free an extent and log it to the EFD. Note that the transaction is marked |
| 369 | * dirty regardless of whether the extent free succeeds or fails to support the |
| 370 | * EFI/EFD lifecycle rules. |
| 371 | */ |
| 372 | static int |
| 373 | xfs_trans_free_extent( |
| 374 | struct xfs_trans *tp, |
| 375 | struct xfs_efd_log_item *efdp, |
Darrick J. Wong | 578c714 | 2023-02-01 10:16:02 -0800 | [diff] [blame] | 376 | struct xfs_extent_free_item *xefi) |
Christoph Hellwig | 81f4004 | 2019-06-28 19:28:17 -0700 | [diff] [blame] | 377 | { |
Darrick J. Wong | 72ba455 | 2023-02-01 10:16:02 -0800 | [diff] [blame] | 378 | struct xfs_owner_info oinfo = { }; |
Christoph Hellwig | 81f4004 | 2019-06-28 19:28:17 -0700 | [diff] [blame] | 379 | struct xfs_mount *mp = tp->t_mountp; |
| 380 | struct xfs_extent *extp; |
| 381 | uint next_extent; |
Christoph Hellwig | 81f4004 | 2019-06-28 19:28:17 -0700 | [diff] [blame] | 382 | xfs_agblock_t agbno = XFS_FSB_TO_AGBNO(mp, |
Darrick J. Wong | 578c714 | 2023-02-01 10:16:02 -0800 | [diff] [blame] | 383 | xefi->xefi_startblock); |
Christoph Hellwig | 81f4004 | 2019-06-28 19:28:17 -0700 | [diff] [blame] | 384 | int error; |
| 385 | |
Darrick J. Wong | 578c714 | 2023-02-01 10:16:02 -0800 | [diff] [blame] | 386 | oinfo.oi_owner = xefi->xefi_owner; |
| 387 | if (xefi->xefi_flags & XFS_EFI_ATTR_FORK) |
Darrick J. Wong | 72ba455 | 2023-02-01 10:16:02 -0800 | [diff] [blame] | 388 | oinfo.oi_flags |= XFS_OWNER_INFO_ATTR_FORK; |
Darrick J. Wong | 578c714 | 2023-02-01 10:16:02 -0800 | [diff] [blame] | 389 | if (xefi->xefi_flags & XFS_EFI_BMBT_BLOCK) |
Darrick J. Wong | 72ba455 | 2023-02-01 10:16:02 -0800 | [diff] [blame] | 390 | oinfo.oi_flags |= XFS_OWNER_INFO_BMBT_BLOCK; |
Christoph Hellwig | 81f4004 | 2019-06-28 19:28:17 -0700 | [diff] [blame] | 391 | |
Darrick J. Wong | f6b3846 | 2023-04-11 18:59:54 -0700 | [diff] [blame] | 392 | trace_xfs_bmap_free_deferred(tp->t_mountp, xefi->xefi_pag->pag_agno, 0, |
| 393 | agbno, xefi->xefi_blockcount); |
Darrick J. Wong | 72ba455 | 2023-02-01 10:16:02 -0800 | [diff] [blame] | 394 | |
Darrick J. Wong | f6b3846 | 2023-04-11 18:59:54 -0700 | [diff] [blame] | 395 | error = __xfs_free_extent(tp, xefi->xefi_pag, agbno, |
Dave Chinner | b742d7b4 | 2023-06-28 11:04:32 -0700 | [diff] [blame] | 396 | xefi->xefi_blockcount, &oinfo, xefi->xefi_agresv, |
Darrick J. Wong | 578c714 | 2023-02-01 10:16:02 -0800 | [diff] [blame] | 397 | xefi->xefi_flags & XFS_EFI_SKIP_DISCARD); |
Darrick J. Wong | b2ccab31 | 2023-04-11 18:59:53 -0700 | [diff] [blame] | 398 | |
Christoph Hellwig | 81f4004 | 2019-06-28 19:28:17 -0700 | [diff] [blame] | 399 | /* |
| 400 | * Mark the transaction dirty, even on error. This ensures the |
| 401 | * transaction is aborted, which: |
| 402 | * |
| 403 | * 1.) releases the EFI and frees the EFD |
| 404 | * 2.) shuts down the filesystem |
| 405 | */ |
Dave Chinner | bb7b1c9 | 2022-05-04 11:46:21 +1000 | [diff] [blame] | 406 | tp->t_flags |= XFS_TRANS_DIRTY | XFS_TRANS_HAS_INTENT_DONE; |
Christoph Hellwig | 81f4004 | 2019-06-28 19:28:17 -0700 | [diff] [blame] | 407 | set_bit(XFS_LI_DIRTY, &efdp->efd_item.li_flags); |
| 408 | |
Dave Chinner | 0853b5de | 2023-06-28 11:04:33 -0700 | [diff] [blame] | 409 | /* |
| 410 | * If we need a new transaction to make progress, the caller will log a |
| 411 | * new EFI with the current contents. It will also log an EFD to cancel |
| 412 | * the existing EFI, and so we need to copy all the unprocessed extents |
| 413 | * in this EFI to the EFD so this works correctly. |
| 414 | */ |
| 415 | if (error == -EAGAIN) { |
| 416 | xfs_efd_from_efi(efdp); |
| 417 | return error; |
| 418 | } |
| 419 | |
Christoph Hellwig | 81f4004 | 2019-06-28 19:28:17 -0700 | [diff] [blame] | 420 | next_extent = efdp->efd_next_extent; |
| 421 | ASSERT(next_extent < efdp->efd_format.efd_nextents); |
| 422 | extp = &(efdp->efd_format.efd_extents[next_extent]); |
Darrick J. Wong | 578c714 | 2023-02-01 10:16:02 -0800 | [diff] [blame] | 423 | extp->ext_start = xefi->xefi_startblock; |
| 424 | extp->ext_len = xefi->xefi_blockcount; |
Christoph Hellwig | 81f4004 | 2019-06-28 19:28:17 -0700 | [diff] [blame] | 425 | efdp->efd_next_extent++; |
| 426 | |
| 427 | return error; |
| 428 | } |
| 429 | |
| 430 | /* Sort bmap items by AG. */ |
| 431 | static int |
| 432 | xfs_extent_free_diff_items( |
| 433 | void *priv, |
Sami Tolvanen | 4f0f586 | 2021-04-08 11:28:34 -0700 | [diff] [blame] | 434 | const struct list_head *a, |
| 435 | const struct list_head *b) |
Christoph Hellwig | 81f4004 | 2019-06-28 19:28:17 -0700 | [diff] [blame] | 436 | { |
Christoph Hellwig | 81f4004 | 2019-06-28 19:28:17 -0700 | [diff] [blame] | 437 | struct xfs_extent_free_item *ra; |
| 438 | struct xfs_extent_free_item *rb; |
| 439 | |
| 440 | ra = container_of(a, struct xfs_extent_free_item, xefi_list); |
| 441 | rb = container_of(b, struct xfs_extent_free_item, xefi_list); |
Darrick J. Wong | f6b3846 | 2023-04-11 18:59:54 -0700 | [diff] [blame] | 442 | |
| 443 | return ra->xefi_pag->pag_agno - rb->xefi_pag->pag_agno; |
Christoph Hellwig | 81f4004 | 2019-06-28 19:28:17 -0700 | [diff] [blame] | 444 | } |
| 445 | |
Christoph Hellwig | 81f4004 | 2019-06-28 19:28:17 -0700 | [diff] [blame] | 446 | /* Log a free extent to the intent item. */ |
| 447 | STATIC void |
| 448 | xfs_extent_free_log_item( |
| 449 | struct xfs_trans *tp, |
Christoph Hellwig | c1f0918 | 2020-04-30 12:52:20 -0700 | [diff] [blame] | 450 | struct xfs_efi_log_item *efip, |
Darrick J. Wong | 578c714 | 2023-02-01 10:16:02 -0800 | [diff] [blame] | 451 | struct xfs_extent_free_item *xefi) |
Christoph Hellwig | 81f4004 | 2019-06-28 19:28:17 -0700 | [diff] [blame] | 452 | { |
Christoph Hellwig | 81f4004 | 2019-06-28 19:28:17 -0700 | [diff] [blame] | 453 | uint next_extent; |
| 454 | struct xfs_extent *extp; |
| 455 | |
Christoph Hellwig | 81f4004 | 2019-06-28 19:28:17 -0700 | [diff] [blame] | 456 | tp->t_flags |= XFS_TRANS_DIRTY; |
| 457 | set_bit(XFS_LI_DIRTY, &efip->efi_item.li_flags); |
| 458 | |
| 459 | /* |
| 460 | * atomic_inc_return gives us the value after the increment; |
| 461 | * we want to use it as an array index so we need to subtract 1 from |
| 462 | * it. |
| 463 | */ |
| 464 | next_extent = atomic_inc_return(&efip->efi_next_extent) - 1; |
| 465 | ASSERT(next_extent < efip->efi_format.efi_nextents); |
| 466 | extp = &efip->efi_format.efi_extents[next_extent]; |
Darrick J. Wong | 578c714 | 2023-02-01 10:16:02 -0800 | [diff] [blame] | 467 | extp->ext_start = xefi->xefi_startblock; |
| 468 | extp->ext_len = xefi->xefi_blockcount; |
Christoph Hellwig | 81f4004 | 2019-06-28 19:28:17 -0700 | [diff] [blame] | 469 | } |
| 470 | |
Christoph Hellwig | 13a8333 | 2020-04-30 12:52:21 -0700 | [diff] [blame] | 471 | static struct xfs_log_item * |
Christoph Hellwig | c1f0918 | 2020-04-30 12:52:20 -0700 | [diff] [blame] | 472 | xfs_extent_free_create_intent( |
| 473 | struct xfs_trans *tp, |
| 474 | struct list_head *items, |
Christoph Hellwig | d367a86 | 2020-04-30 12:52:20 -0700 | [diff] [blame] | 475 | unsigned int count, |
| 476 | bool sort) |
Christoph Hellwig | c1f0918 | 2020-04-30 12:52:20 -0700 | [diff] [blame] | 477 | { |
| 478 | struct xfs_mount *mp = tp->t_mountp; |
| 479 | struct xfs_efi_log_item *efip = xfs_efi_init(mp, count); |
Darrick J. Wong | 578c714 | 2023-02-01 10:16:02 -0800 | [diff] [blame] | 480 | struct xfs_extent_free_item *xefi; |
Christoph Hellwig | c1f0918 | 2020-04-30 12:52:20 -0700 | [diff] [blame] | 481 | |
| 482 | ASSERT(count > 0); |
| 483 | |
| 484 | xfs_trans_add_item(tp, &efip->efi_item); |
Christoph Hellwig | d367a86 | 2020-04-30 12:52:20 -0700 | [diff] [blame] | 485 | if (sort) |
| 486 | list_sort(mp, items, xfs_extent_free_diff_items); |
Darrick J. Wong | 578c714 | 2023-02-01 10:16:02 -0800 | [diff] [blame] | 487 | list_for_each_entry(xefi, items, xefi_list) |
| 488 | xfs_extent_free_log_item(tp, efip, xefi); |
Christoph Hellwig | 13a8333 | 2020-04-30 12:52:21 -0700 | [diff] [blame] | 489 | return &efip->efi_item; |
Christoph Hellwig | c1f0918 | 2020-04-30 12:52:20 -0700 | [diff] [blame] | 490 | } |
| 491 | |
Christoph Hellwig | 81f4004 | 2019-06-28 19:28:17 -0700 | [diff] [blame] | 492 | /* Get an EFD so we can process all the free extents. */ |
Christoph Hellwig | f09d167 | 2020-04-30 12:52:22 -0700 | [diff] [blame] | 493 | static struct xfs_log_item * |
Christoph Hellwig | 81f4004 | 2019-06-28 19:28:17 -0700 | [diff] [blame] | 494 | xfs_extent_free_create_done( |
| 495 | struct xfs_trans *tp, |
Christoph Hellwig | 13a8333 | 2020-04-30 12:52:21 -0700 | [diff] [blame] | 496 | struct xfs_log_item *intent, |
Christoph Hellwig | 81f4004 | 2019-06-28 19:28:17 -0700 | [diff] [blame] | 497 | unsigned int count) |
| 498 | { |
Christoph Hellwig | f09d167 | 2020-04-30 12:52:22 -0700 | [diff] [blame] | 499 | return &xfs_trans_get_efd(tp, EFI_ITEM(intent), count)->efd_item; |
Christoph Hellwig | 81f4004 | 2019-06-28 19:28:17 -0700 | [diff] [blame] | 500 | } |
| 501 | |
Darrick J. Wong | f6b3846 | 2023-04-11 18:59:54 -0700 | [diff] [blame] | 502 | /* Take a passive ref to the AG containing the space we're freeing. */ |
| 503 | void |
| 504 | xfs_extent_free_get_group( |
| 505 | struct xfs_mount *mp, |
| 506 | struct xfs_extent_free_item *xefi) |
| 507 | { |
| 508 | xfs_agnumber_t agno; |
| 509 | |
| 510 | agno = XFS_FSB_TO_AGNO(mp, xefi->xefi_startblock); |
Darrick J. Wong | d5c8813 | 2023-04-11 18:59:58 -0700 | [diff] [blame] | 511 | xefi->xefi_pag = xfs_perag_intent_get(mp, agno); |
Darrick J. Wong | f6b3846 | 2023-04-11 18:59:54 -0700 | [diff] [blame] | 512 | } |
| 513 | |
| 514 | /* Release a passive AG ref after some freeing work. */ |
| 515 | static inline void |
| 516 | xfs_extent_free_put_group( |
| 517 | struct xfs_extent_free_item *xefi) |
| 518 | { |
Darrick J. Wong | d5c8813 | 2023-04-11 18:59:58 -0700 | [diff] [blame] | 519 | xfs_perag_intent_put(xefi->xefi_pag); |
Darrick J. Wong | f6b3846 | 2023-04-11 18:59:54 -0700 | [diff] [blame] | 520 | } |
| 521 | |
Christoph Hellwig | 81f4004 | 2019-06-28 19:28:17 -0700 | [diff] [blame] | 522 | /* Process a free extent. */ |
| 523 | STATIC int |
| 524 | xfs_extent_free_finish_item( |
| 525 | struct xfs_trans *tp, |
Christoph Hellwig | f09d167 | 2020-04-30 12:52:22 -0700 | [diff] [blame] | 526 | struct xfs_log_item *done, |
Christoph Hellwig | 81f4004 | 2019-06-28 19:28:17 -0700 | [diff] [blame] | 527 | struct list_head *item, |
Christoph Hellwig | 3ec1b26 | 2020-04-30 12:52:22 -0700 | [diff] [blame] | 528 | struct xfs_btree_cur **state) |
Christoph Hellwig | 81f4004 | 2019-06-28 19:28:17 -0700 | [diff] [blame] | 529 | { |
Darrick J. Wong | 578c714 | 2023-02-01 10:16:02 -0800 | [diff] [blame] | 530 | struct xfs_extent_free_item *xefi; |
Christoph Hellwig | 81f4004 | 2019-06-28 19:28:17 -0700 | [diff] [blame] | 531 | int error; |
| 532 | |
Darrick J. Wong | 578c714 | 2023-02-01 10:16:02 -0800 | [diff] [blame] | 533 | xefi = container_of(item, struct xfs_extent_free_item, xefi_list); |
Darrick J. Wong | 72ba455 | 2023-02-01 10:16:02 -0800 | [diff] [blame] | 534 | |
Darrick J. Wong | 578c714 | 2023-02-01 10:16:02 -0800 | [diff] [blame] | 535 | error = xfs_trans_free_extent(tp, EFD_ITEM(done), xefi); |
Darrick J. Wong | f6b3846 | 2023-04-11 18:59:54 -0700 | [diff] [blame] | 536 | |
Dave Chinner | 0853b5de | 2023-06-28 11:04:33 -0700 | [diff] [blame] | 537 | /* |
| 538 | * Don't free the XEFI if we need a new transaction to complete |
| 539 | * processing of it. |
| 540 | */ |
| 541 | if (error == -EAGAIN) |
| 542 | return error; |
| 543 | |
Darrick J. Wong | f6b3846 | 2023-04-11 18:59:54 -0700 | [diff] [blame] | 544 | xfs_extent_free_put_group(xefi); |
Darrick J. Wong | 578c714 | 2023-02-01 10:16:02 -0800 | [diff] [blame] | 545 | kmem_cache_free(xfs_extfree_item_cache, xefi); |
Christoph Hellwig | 81f4004 | 2019-06-28 19:28:17 -0700 | [diff] [blame] | 546 | return error; |
| 547 | } |
| 548 | |
| 549 | /* Abort all pending EFIs. */ |
| 550 | STATIC void |
| 551 | xfs_extent_free_abort_intent( |
Christoph Hellwig | 13a8333 | 2020-04-30 12:52:21 -0700 | [diff] [blame] | 552 | struct xfs_log_item *intent) |
Christoph Hellwig | 81f4004 | 2019-06-28 19:28:17 -0700 | [diff] [blame] | 553 | { |
Christoph Hellwig | 13a8333 | 2020-04-30 12:52:21 -0700 | [diff] [blame] | 554 | xfs_efi_release(EFI_ITEM(intent)); |
Christoph Hellwig | 81f4004 | 2019-06-28 19:28:17 -0700 | [diff] [blame] | 555 | } |
| 556 | |
| 557 | /* Cancel a free extent. */ |
| 558 | STATIC void |
| 559 | xfs_extent_free_cancel_item( |
| 560 | struct list_head *item) |
| 561 | { |
Darrick J. Wong | 578c714 | 2023-02-01 10:16:02 -0800 | [diff] [blame] | 562 | struct xfs_extent_free_item *xefi; |
Christoph Hellwig | 81f4004 | 2019-06-28 19:28:17 -0700 | [diff] [blame] | 563 | |
Darrick J. Wong | 578c714 | 2023-02-01 10:16:02 -0800 | [diff] [blame] | 564 | xefi = container_of(item, struct xfs_extent_free_item, xefi_list); |
Darrick J. Wong | f6b3846 | 2023-04-11 18:59:54 -0700 | [diff] [blame] | 565 | |
| 566 | xfs_extent_free_put_group(xefi); |
Darrick J. Wong | 578c714 | 2023-02-01 10:16:02 -0800 | [diff] [blame] | 567 | kmem_cache_free(xfs_extfree_item_cache, xefi); |
Christoph Hellwig | 81f4004 | 2019-06-28 19:28:17 -0700 | [diff] [blame] | 568 | } |
| 569 | |
| 570 | const struct xfs_defer_op_type xfs_extent_free_defer_type = { |
| 571 | .max_items = XFS_EFI_MAX_FAST_EXTENTS, |
Christoph Hellwig | 81f4004 | 2019-06-28 19:28:17 -0700 | [diff] [blame] | 572 | .create_intent = xfs_extent_free_create_intent, |
| 573 | .abort_intent = xfs_extent_free_abort_intent, |
Christoph Hellwig | 81f4004 | 2019-06-28 19:28:17 -0700 | [diff] [blame] | 574 | .create_done = xfs_extent_free_create_done, |
| 575 | .finish_item = xfs_extent_free_finish_item, |
| 576 | .cancel_item = xfs_extent_free_cancel_item, |
| 577 | }; |
| 578 | |
| 579 | /* |
| 580 | * AGFL blocks are accounted differently in the reserve pools and are not |
| 581 | * inserted into the busy extent list. |
| 582 | */ |
| 583 | STATIC int |
| 584 | xfs_agfl_free_finish_item( |
| 585 | struct xfs_trans *tp, |
Christoph Hellwig | f09d167 | 2020-04-30 12:52:22 -0700 | [diff] [blame] | 586 | struct xfs_log_item *done, |
Christoph Hellwig | 81f4004 | 2019-06-28 19:28:17 -0700 | [diff] [blame] | 587 | struct list_head *item, |
Christoph Hellwig | 3ec1b26 | 2020-04-30 12:52:22 -0700 | [diff] [blame] | 588 | struct xfs_btree_cur **state) |
Christoph Hellwig | 81f4004 | 2019-06-28 19:28:17 -0700 | [diff] [blame] | 589 | { |
Darrick J. Wong | b3b5ff4 | 2021-10-12 15:55:54 -0700 | [diff] [blame] | 590 | struct xfs_owner_info oinfo = { }; |
Christoph Hellwig | 81f4004 | 2019-06-28 19:28:17 -0700 | [diff] [blame] | 591 | struct xfs_mount *mp = tp->t_mountp; |
Christoph Hellwig | f09d167 | 2020-04-30 12:52:22 -0700 | [diff] [blame] | 592 | struct xfs_efd_log_item *efdp = EFD_ITEM(done); |
Darrick J. Wong | 578c714 | 2023-02-01 10:16:02 -0800 | [diff] [blame] | 593 | struct xfs_extent_free_item *xefi; |
Christoph Hellwig | 81f4004 | 2019-06-28 19:28:17 -0700 | [diff] [blame] | 594 | struct xfs_extent *extp; |
| 595 | struct xfs_buf *agbp; |
| 596 | int error; |
Christoph Hellwig | 81f4004 | 2019-06-28 19:28:17 -0700 | [diff] [blame] | 597 | xfs_agblock_t agbno; |
| 598 | uint next_extent; |
| 599 | |
Darrick J. Wong | 578c714 | 2023-02-01 10:16:02 -0800 | [diff] [blame] | 600 | xefi = container_of(item, struct xfs_extent_free_item, xefi_list); |
| 601 | ASSERT(xefi->xefi_blockcount == 1); |
Darrick J. Wong | 578c714 | 2023-02-01 10:16:02 -0800 | [diff] [blame] | 602 | agbno = XFS_FSB_TO_AGBNO(mp, xefi->xefi_startblock); |
| 603 | oinfo.oi_owner = xefi->xefi_owner; |
Christoph Hellwig | 81f4004 | 2019-06-28 19:28:17 -0700 | [diff] [blame] | 604 | |
Darrick J. Wong | f6b3846 | 2023-04-11 18:59:54 -0700 | [diff] [blame] | 605 | trace_xfs_agfl_free_deferred(mp, xefi->xefi_pag->pag_agno, 0, agbno, |
| 606 | xefi->xefi_blockcount); |
Christoph Hellwig | 81f4004 | 2019-06-28 19:28:17 -0700 | [diff] [blame] | 607 | |
Darrick J. Wong | f6b3846 | 2023-04-11 18:59:54 -0700 | [diff] [blame] | 608 | error = xfs_alloc_read_agf(xefi->xefi_pag, tp, 0, &agbp); |
Christoph Hellwig | 81f4004 | 2019-06-28 19:28:17 -0700 | [diff] [blame] | 609 | if (!error) |
Darrick J. Wong | f6b3846 | 2023-04-11 18:59:54 -0700 | [diff] [blame] | 610 | error = xfs_free_agfl_block(tp, xefi->xefi_pag->pag_agno, |
| 611 | agbno, agbp, &oinfo); |
Christoph Hellwig | 81f4004 | 2019-06-28 19:28:17 -0700 | [diff] [blame] | 612 | |
| 613 | /* |
| 614 | * Mark the transaction dirty, even on error. This ensures the |
| 615 | * transaction is aborted, which: |
| 616 | * |
| 617 | * 1.) releases the EFI and frees the EFD |
| 618 | * 2.) shuts down the filesystem |
| 619 | */ |
| 620 | tp->t_flags |= XFS_TRANS_DIRTY; |
| 621 | set_bit(XFS_LI_DIRTY, &efdp->efd_item.li_flags); |
| 622 | |
| 623 | next_extent = efdp->efd_next_extent; |
| 624 | ASSERT(next_extent < efdp->efd_format.efd_nextents); |
| 625 | extp = &(efdp->efd_format.efd_extents[next_extent]); |
Darrick J. Wong | 578c714 | 2023-02-01 10:16:02 -0800 | [diff] [blame] | 626 | extp->ext_start = xefi->xefi_startblock; |
| 627 | extp->ext_len = xefi->xefi_blockcount; |
Christoph Hellwig | 81f4004 | 2019-06-28 19:28:17 -0700 | [diff] [blame] | 628 | efdp->efd_next_extent++; |
| 629 | |
Darrick J. Wong | f6b3846 | 2023-04-11 18:59:54 -0700 | [diff] [blame] | 630 | xfs_extent_free_put_group(xefi); |
Darrick J. Wong | 578c714 | 2023-02-01 10:16:02 -0800 | [diff] [blame] | 631 | kmem_cache_free(xfs_extfree_item_cache, xefi); |
Christoph Hellwig | 81f4004 | 2019-06-28 19:28:17 -0700 | [diff] [blame] | 632 | return error; |
| 633 | } |
| 634 | |
| 635 | /* sub-type with special handling for AGFL deferred frees */ |
| 636 | const struct xfs_defer_op_type xfs_agfl_free_defer_type = { |
| 637 | .max_items = XFS_EFI_MAX_FAST_EXTENTS, |
Christoph Hellwig | 81f4004 | 2019-06-28 19:28:17 -0700 | [diff] [blame] | 638 | .create_intent = xfs_extent_free_create_intent, |
| 639 | .abort_intent = xfs_extent_free_abort_intent, |
Christoph Hellwig | 81f4004 | 2019-06-28 19:28:17 -0700 | [diff] [blame] | 640 | .create_done = xfs_extent_free_create_done, |
| 641 | .finish_item = xfs_agfl_free_finish_item, |
| 642 | .cancel_item = xfs_extent_free_cancel_item, |
| 643 | }; |
| 644 | |
Darrick J. Wong | 3c15df3 | 2020-11-29 16:33:38 -0800 | [diff] [blame] | 645 | /* Is this recovered EFI ok? */ |
| 646 | static inline bool |
| 647 | xfs_efi_validate_ext( |
| 648 | struct xfs_mount *mp, |
| 649 | struct xfs_extent *extp) |
| 650 | { |
Darrick J. Wong | 67457eb | 2020-12-04 13:20:00 -0800 | [diff] [blame] | 651 | return xfs_verify_fsbext(mp, extp->ext_start, extp->ext_len); |
Darrick J. Wong | 3c15df3 | 2020-11-29 16:33:38 -0800 | [diff] [blame] | 652 | } |
| 653 | |
Christoph Hellwig | 81f4004 | 2019-06-28 19:28:17 -0700 | [diff] [blame] | 654 | /* |
Darrick J. Wong | dc42375d | 2016-08-03 11:23:49 +1000 | [diff] [blame] | 655 | * Process an extent free intent item that was recovered from |
| 656 | * the log. We need to free the extents that it describes. |
| 657 | */ |
Darrick J. Wong | 10d0c6e | 2020-05-01 16:00:50 -0700 | [diff] [blame] | 658 | STATIC int |
Darrick J. Wong | 96b60f8 | 2020-05-01 16:00:55 -0700 | [diff] [blame] | 659 | xfs_efi_item_recover( |
| 660 | struct xfs_log_item *lip, |
Darrick J. Wong | e6fff81 | 2020-09-25 17:39:37 -0700 | [diff] [blame] | 661 | struct list_head *capture_list) |
Darrick J. Wong | dc42375d | 2016-08-03 11:23:49 +1000 | [diff] [blame] | 662 | { |
Darrick J. Wong | 3c919b0 | 2023-09-11 08:39:05 -0700 | [diff] [blame] | 663 | struct xfs_trans_res resv; |
Darrick J. Wong | 96b60f8 | 2020-05-01 16:00:55 -0700 | [diff] [blame] | 664 | struct xfs_efi_log_item *efip = EFI_ITEM(lip); |
Dave Chinner | d86142d | 2022-03-17 09:09:12 -0700 | [diff] [blame] | 665 | struct xfs_mount *mp = lip->li_log->l_mp; |
Darrick J. Wong | 96b60f8 | 2020-05-01 16:00:55 -0700 | [diff] [blame] | 666 | struct xfs_efd_log_item *efdp; |
| 667 | struct xfs_trans *tp; |
Darrick J. Wong | 96b60f8 | 2020-05-01 16:00:55 -0700 | [diff] [blame] | 668 | int i; |
| 669 | int error = 0; |
Dave Chinner | 0853b5de | 2023-06-28 11:04:33 -0700 | [diff] [blame] | 670 | bool requeue_only = false; |
Darrick J. Wong | dc42375d | 2016-08-03 11:23:49 +1000 | [diff] [blame] | 671 | |
Darrick J. Wong | dc42375d | 2016-08-03 11:23:49 +1000 | [diff] [blame] | 672 | /* |
| 673 | * First check the validity of the extents described by the |
| 674 | * EFI. If any are bad, then assume that all are bad and |
| 675 | * just toss the EFI. |
| 676 | */ |
| 677 | for (i = 0; i < efip->efi_format.efi_nextents; i++) { |
Darrick J. Wong | 3c15df3 | 2020-11-29 16:33:38 -0800 | [diff] [blame] | 678 | if (!xfs_efi_validate_ext(mp, |
| 679 | &efip->efi_format.efi_extents[i])) { |
| 680 | XFS_CORRUPTION_ERROR(__func__, XFS_ERRLEVEL_LOW, mp, |
| 681 | &efip->efi_format, |
| 682 | sizeof(efip->efi_format)); |
Darrick J. Wong | 895e196 | 2019-11-06 09:17:43 -0800 | [diff] [blame] | 683 | return -EFSCORRUPTED; |
Darrick J. Wong | 3c15df3 | 2020-11-29 16:33:38 -0800 | [diff] [blame] | 684 | } |
Darrick J. Wong | dc42375d | 2016-08-03 11:23:49 +1000 | [diff] [blame] | 685 | } |
| 686 | |
Darrick J. Wong | 3c919b0 | 2023-09-11 08:39:05 -0700 | [diff] [blame] | 687 | resv = xlog_recover_resv(&M_RES(mp)->tr_itruncate); |
| 688 | error = xfs_trans_alloc(mp, &resv, 0, 0, 0, &tp); |
Darrick J. Wong | dc42375d | 2016-08-03 11:23:49 +1000 | [diff] [blame] | 689 | if (error) |
| 690 | return error; |
| 691 | efdp = xfs_trans_get_efd(tp, efip, efip->efi_format.efi_nextents); |
| 692 | |
| 693 | for (i = 0; i < efip->efi_format.efi_nextents; i++) { |
Darrick J. Wong | 72ba455 | 2023-02-01 10:16:02 -0800 | [diff] [blame] | 694 | struct xfs_extent_free_item fake = { |
| 695 | .xefi_owner = XFS_RMAP_OWN_UNKNOWN, |
Dave Chinner | b742d7b4 | 2023-06-28 11:04:32 -0700 | [diff] [blame] | 696 | .xefi_agresv = XFS_AG_RESV_NONE, |
Darrick J. Wong | 72ba455 | 2023-02-01 10:16:02 -0800 | [diff] [blame] | 697 | }; |
| 698 | struct xfs_extent *extp; |
| 699 | |
Darrick J. Wong | e127faf | 2016-08-03 12:29:32 +1000 | [diff] [blame] | 700 | extp = &efip->efi_format.efi_extents[i]; |
Darrick J. Wong | 72ba455 | 2023-02-01 10:16:02 -0800 | [diff] [blame] | 701 | |
| 702 | fake.xefi_startblock = extp->ext_start; |
| 703 | fake.xefi_blockcount = extp->ext_len; |
| 704 | |
Dave Chinner | 0853b5de | 2023-06-28 11:04:33 -0700 | [diff] [blame] | 705 | if (!requeue_only) { |
| 706 | xfs_extent_free_get_group(mp, &fake); |
| 707 | error = xfs_trans_free_extent(tp, efdp, &fake); |
| 708 | xfs_extent_free_put_group(&fake); |
| 709 | } |
| 710 | |
| 711 | /* |
| 712 | * If we can't free the extent without potentially deadlocking, |
| 713 | * requeue the rest of the extents to a new so that they get |
| 714 | * run again later with a new transaction context. |
| 715 | */ |
| 716 | if (error == -EAGAIN || requeue_only) { |
| 717 | error = xfs_free_extent_later(tp, fake.xefi_startblock, |
| 718 | fake.xefi_blockcount, |
| 719 | &XFS_RMAP_OINFO_ANY_OWNER, |
| 720 | fake.xefi_agresv); |
| 721 | if (!error) { |
| 722 | requeue_only = true; |
| 723 | continue; |
| 724 | } |
Yang Li | 34accea | 2023-07-03 09:38:50 -0700 | [diff] [blame] | 725 | } |
Dave Chinner | 0853b5de | 2023-06-28 11:04:33 -0700 | [diff] [blame] | 726 | |
Darrick J. Wong | 43059d5 | 2021-08-06 11:06:35 -0700 | [diff] [blame] | 727 | if (error == -EFSCORRUPTED) |
| 728 | XFS_CORRUPTION_ERROR(__func__, XFS_ERRLEVEL_LOW, mp, |
| 729 | extp, sizeof(*extp)); |
Darrick J. Wong | dc42375d | 2016-08-03 11:23:49 +1000 | [diff] [blame] | 730 | if (error) |
| 731 | goto abort_error; |
| 732 | |
| 733 | } |
| 734 | |
Darrick J. Wong | 512edfa | 2021-09-16 17:28:07 -0700 | [diff] [blame] | 735 | return xfs_defer_ops_capture_and_commit(tp, capture_list); |
Darrick J. Wong | dc42375d | 2016-08-03 11:23:49 +1000 | [diff] [blame] | 736 | |
| 737 | abort_error: |
| 738 | xfs_trans_cancel(tp); |
| 739 | return error; |
| 740 | } |
Darrick J. Wong | 86ffa47 | 2020-05-01 16:00:45 -0700 | [diff] [blame] | 741 | |
Darrick J. Wong | 154c733 | 2020-05-01 16:00:54 -0700 | [diff] [blame] | 742 | STATIC bool |
| 743 | xfs_efi_item_match( |
| 744 | struct xfs_log_item *lip, |
| 745 | uint64_t intent_id) |
| 746 | { |
| 747 | return EFI_ITEM(lip)->efi_format.efi_id == intent_id; |
| 748 | } |
| 749 | |
Darrick J. Wong | 4e919af | 2020-09-27 16:18:13 -0700 | [diff] [blame] | 750 | /* Relog an intent item to push the log tail forward. */ |
| 751 | static struct xfs_log_item * |
| 752 | xfs_efi_item_relog( |
| 753 | struct xfs_log_item *intent, |
| 754 | struct xfs_trans *tp) |
| 755 | { |
| 756 | struct xfs_efd_log_item *efdp; |
| 757 | struct xfs_efi_log_item *efip; |
| 758 | struct xfs_extent *extp; |
| 759 | unsigned int count; |
| 760 | |
| 761 | count = EFI_ITEM(intent)->efi_format.efi_nextents; |
| 762 | extp = EFI_ITEM(intent)->efi_format.efi_extents; |
| 763 | |
| 764 | tp->t_flags |= XFS_TRANS_DIRTY; |
| 765 | efdp = xfs_trans_get_efd(tp, EFI_ITEM(intent), count); |
| 766 | efdp->efd_next_extent = count; |
| 767 | memcpy(efdp->efd_format.efd_extents, extp, count * sizeof(*extp)); |
| 768 | set_bit(XFS_LI_DIRTY, &efdp->efd_item.li_flags); |
| 769 | |
| 770 | efip = xfs_efi_init(tp->t_mountp, count); |
| 771 | memcpy(efip->efi_format.efi_extents, extp, count * sizeof(*extp)); |
| 772 | atomic_set(&efip->efi_next_extent, count); |
| 773 | xfs_trans_add_item(tp, &efip->efi_item); |
| 774 | set_bit(XFS_LI_DIRTY, &efip->efi_item.li_flags); |
| 775 | return &efip->efi_item; |
| 776 | } |
| 777 | |
Darrick J. Wong | 10d0c6e | 2020-05-01 16:00:50 -0700 | [diff] [blame] | 778 | static const struct xfs_item_ops xfs_efi_item_ops = { |
Dave Chinner | f5b8120 | 2022-05-04 11:46:09 +1000 | [diff] [blame] | 779 | .flags = XFS_ITEM_INTENT, |
Darrick J. Wong | 10d0c6e | 2020-05-01 16:00:50 -0700 | [diff] [blame] | 780 | .iop_size = xfs_efi_item_size, |
| 781 | .iop_format = xfs_efi_item_format, |
| 782 | .iop_unpin = xfs_efi_item_unpin, |
| 783 | .iop_release = xfs_efi_item_release, |
| 784 | .iop_recover = xfs_efi_item_recover, |
Darrick J. Wong | 154c733 | 2020-05-01 16:00:54 -0700 | [diff] [blame] | 785 | .iop_match = xfs_efi_item_match, |
Darrick J. Wong | 4e919af | 2020-09-27 16:18:13 -0700 | [diff] [blame] | 786 | .iop_relog = xfs_efi_item_relog, |
Darrick J. Wong | 10d0c6e | 2020-05-01 16:00:50 -0700 | [diff] [blame] | 787 | }; |
| 788 | |
Darrick J. Wong | 9817aa8 | 2020-05-01 16:00:48 -0700 | [diff] [blame] | 789 | /* |
| 790 | * This routine is called to create an in-core extent free intent |
| 791 | * item from the efi format structure which was logged on disk. |
| 792 | * It allocates an in-core efi, copies the extents from the format |
| 793 | * structure into it, and adds the efi to the AIL with the given |
| 794 | * LSN. |
| 795 | */ |
| 796 | STATIC int |
| 797 | xlog_recover_efi_commit_pass2( |
| 798 | struct xlog *log, |
| 799 | struct list_head *buffer_list, |
| 800 | struct xlog_recover_item *item, |
| 801 | xfs_lsn_t lsn) |
| 802 | { |
| 803 | struct xfs_mount *mp = log->l_mp; |
| 804 | struct xfs_efi_log_item *efip; |
| 805 | struct xfs_efi_log_format *efi_formatp; |
| 806 | int error; |
| 807 | |
| 808 | efi_formatp = item->ri_buf[0].i_addr; |
| 809 | |
Darrick J. Wong | 3c5aaac | 2022-10-21 09:10:05 -0700 | [diff] [blame] | 810 | if (item->ri_buf[0].i_len < xfs_efi_log_format_sizeof(0)) { |
Darrick J. Wong | 950f0d5 | 2022-10-25 15:07:14 -0700 | [diff] [blame] | 811 | XFS_CORRUPTION_ERROR(__func__, XFS_ERRLEVEL_LOW, mp, |
| 812 | item->ri_buf[0].i_addr, item->ri_buf[0].i_len); |
Darrick J. Wong | 03a7485 | 2022-10-20 16:39:59 -0700 | [diff] [blame] | 813 | return -EFSCORRUPTED; |
| 814 | } |
| 815 | |
Darrick J. Wong | 9817aa8 | 2020-05-01 16:00:48 -0700 | [diff] [blame] | 816 | efip = xfs_efi_init(mp, efi_formatp->efi_nextents); |
| 817 | error = xfs_efi_copy_format(&item->ri_buf[0], &efip->efi_format); |
| 818 | if (error) { |
| 819 | xfs_efi_item_free(efip); |
| 820 | return error; |
| 821 | } |
| 822 | atomic_set(&efip->efi_next_extent, efi_formatp->efi_nextents); |
Darrick J. Wong | 9817aa8 | 2020-05-01 16:00:48 -0700 | [diff] [blame] | 823 | /* |
Darrick J. Wong | 86a3717 | 2020-05-01 16:00:54 -0700 | [diff] [blame] | 824 | * Insert the intent into the AIL directly and drop one reference so |
| 825 | * that finishing or canceling the work will drop the other. |
Darrick J. Wong | 9817aa8 | 2020-05-01 16:00:48 -0700 | [diff] [blame] | 826 | */ |
Darrick J. Wong | 86a3717 | 2020-05-01 16:00:54 -0700 | [diff] [blame] | 827 | xfs_trans_ail_insert(log->l_ailp, &efip->efi_item, lsn); |
Darrick J. Wong | 9817aa8 | 2020-05-01 16:00:48 -0700 | [diff] [blame] | 828 | xfs_efi_release(efip); |
| 829 | return 0; |
| 830 | } |
| 831 | |
Darrick J. Wong | 86ffa47 | 2020-05-01 16:00:45 -0700 | [diff] [blame] | 832 | const struct xlog_recover_item_ops xlog_efi_item_ops = { |
| 833 | .item_type = XFS_LI_EFI, |
Darrick J. Wong | 9817aa8 | 2020-05-01 16:00:48 -0700 | [diff] [blame] | 834 | .commit_pass2 = xlog_recover_efi_commit_pass2, |
Darrick J. Wong | 86ffa47 | 2020-05-01 16:00:45 -0700 | [diff] [blame] | 835 | }; |
| 836 | |
Darrick J. Wong | 9817aa8 | 2020-05-01 16:00:48 -0700 | [diff] [blame] | 837 | /* |
| 838 | * This routine is called when an EFD format structure is found in a committed |
| 839 | * transaction in the log. Its purpose is to cancel the corresponding EFI if it |
| 840 | * was still in the log. To do this it searches the AIL for the EFI with an id |
| 841 | * equal to that in the EFD format structure. If we find it we drop the EFD |
| 842 | * reference, which removes the EFI from the AIL and frees it. |
| 843 | */ |
| 844 | STATIC int |
| 845 | xlog_recover_efd_commit_pass2( |
| 846 | struct xlog *log, |
| 847 | struct list_head *buffer_list, |
| 848 | struct xlog_recover_item *item, |
| 849 | xfs_lsn_t lsn) |
| 850 | { |
Darrick J. Wong | 9817aa8 | 2020-05-01 16:00:48 -0700 | [diff] [blame] | 851 | struct xfs_efd_log_format *efd_formatp; |
Darrick J. Wong | 921ed96 | 2022-10-25 15:14:06 -0700 | [diff] [blame] | 852 | int buflen = item->ri_buf[0].i_len; |
Darrick J. Wong | 9817aa8 | 2020-05-01 16:00:48 -0700 | [diff] [blame] | 853 | |
| 854 | efd_formatp = item->ri_buf[0].i_addr; |
Darrick J. Wong | 921ed96 | 2022-10-25 15:14:06 -0700 | [diff] [blame] | 855 | |
| 856 | if (buflen < sizeof(struct xfs_efd_log_format)) { |
| 857 | XFS_CORRUPTION_ERROR(__func__, XFS_ERRLEVEL_LOW, log->l_mp, |
| 858 | efd_formatp, buflen); |
| 859 | return -EFSCORRUPTED; |
| 860 | } |
| 861 | |
| 862 | if (item->ri_buf[0].i_len != xfs_efd_log_format32_sizeof( |
| 863 | efd_formatp->efd_nextents) && |
| 864 | item->ri_buf[0].i_len != xfs_efd_log_format64_sizeof( |
| 865 | efd_formatp->efd_nextents)) { |
| 866 | XFS_CORRUPTION_ERROR(__func__, XFS_ERRLEVEL_LOW, log->l_mp, |
| 867 | efd_formatp, buflen); |
| 868 | return -EFSCORRUPTED; |
| 869 | } |
Darrick J. Wong | 9817aa8 | 2020-05-01 16:00:48 -0700 | [diff] [blame] | 870 | |
Darrick J. Wong | 154c733 | 2020-05-01 16:00:54 -0700 | [diff] [blame] | 871 | xlog_recover_release_intent(log, XFS_LI_EFI, efd_formatp->efd_efi_id); |
Darrick J. Wong | 9817aa8 | 2020-05-01 16:00:48 -0700 | [diff] [blame] | 872 | return 0; |
| 873 | } |
| 874 | |
Darrick J. Wong | 86ffa47 | 2020-05-01 16:00:45 -0700 | [diff] [blame] | 875 | const struct xlog_recover_item_ops xlog_efd_item_ops = { |
| 876 | .item_type = XFS_LI_EFD, |
Darrick J. Wong | 9817aa8 | 2020-05-01 16:00:48 -0700 | [diff] [blame] | 877 | .commit_pass2 = xlog_recover_efd_commit_pass2, |
Darrick J. Wong | 86ffa47 | 2020-05-01 16:00:45 -0700 | [diff] [blame] | 878 | }; |