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-rw-r--r--fs/xfs/xfs_trans_rmap.c257
1 files changed, 0 insertions, 257 deletions
diff --git a/fs/xfs/xfs_trans_rmap.c b/fs/xfs/xfs_trans_rmap.c
deleted file mode 100644
index 5c7936b1be13..000000000000
--- a/fs/xfs/xfs_trans_rmap.c
+++ /dev/null
@@ -1,257 +0,0 @@
1// SPDX-License-Identifier: GPL-2.0+
2/*
3 * Copyright (C) 2016 Oracle. All Rights Reserved.
4 * Author: Darrick J. Wong <darrick.wong@oracle.com>
5 */
6#include "xfs.h"
7#include "xfs_fs.h"
8#include "xfs_shared.h"
9#include "xfs_format.h"
10#include "xfs_log_format.h"
11#include "xfs_trans_resv.h"
12#include "xfs_mount.h"
13#include "xfs_defer.h"
14#include "xfs_trans.h"
15#include "xfs_trans_priv.h"
16#include "xfs_rmap_item.h"
17#include "xfs_alloc.h"
18#include "xfs_rmap.h"
19
20/* Set the map extent flags for this reverse mapping. */
21static void
22xfs_trans_set_rmap_flags(
23 struct xfs_map_extent *rmap,
24 enum xfs_rmap_intent_type type,
25 int whichfork,
26 xfs_exntst_t state)
27{
28 rmap->me_flags = 0;
29 if (state == XFS_EXT_UNWRITTEN)
30 rmap->me_flags |= XFS_RMAP_EXTENT_UNWRITTEN;
31 if (whichfork == XFS_ATTR_FORK)
32 rmap->me_flags |= XFS_RMAP_EXTENT_ATTR_FORK;
33 switch (type) {
34 case XFS_RMAP_MAP:
35 rmap->me_flags |= XFS_RMAP_EXTENT_MAP;
36 break;
37 case XFS_RMAP_MAP_SHARED:
38 rmap->me_flags |= XFS_RMAP_EXTENT_MAP_SHARED;
39 break;
40 case XFS_RMAP_UNMAP:
41 rmap->me_flags |= XFS_RMAP_EXTENT_UNMAP;
42 break;
43 case XFS_RMAP_UNMAP_SHARED:
44 rmap->me_flags |= XFS_RMAP_EXTENT_UNMAP_SHARED;
45 break;
46 case XFS_RMAP_CONVERT:
47 rmap->me_flags |= XFS_RMAP_EXTENT_CONVERT;
48 break;
49 case XFS_RMAP_CONVERT_SHARED:
50 rmap->me_flags |= XFS_RMAP_EXTENT_CONVERT_SHARED;
51 break;
52 case XFS_RMAP_ALLOC:
53 rmap->me_flags |= XFS_RMAP_EXTENT_ALLOC;
54 break;
55 case XFS_RMAP_FREE:
56 rmap->me_flags |= XFS_RMAP_EXTENT_FREE;
57 break;
58 default:
59 ASSERT(0);
60 }
61}
62
63struct xfs_rud_log_item *
64xfs_trans_get_rud(
65 struct xfs_trans *tp,
66 struct xfs_rui_log_item *ruip)
67{
68 struct xfs_rud_log_item *rudp;
69
70 rudp = xfs_rud_init(tp->t_mountp, ruip);
71 xfs_trans_add_item(tp, &rudp->rud_item);
72 return rudp;
73}
74
75/*
76 * Finish an rmap update and log it to the RUD. Note that the transaction is
77 * marked dirty regardless of whether the rmap update succeeds or fails to
78 * support the RUI/RUD lifecycle rules.
79 */
80int
81xfs_trans_log_finish_rmap_update(
82 struct xfs_trans *tp,
83 struct xfs_rud_log_item *rudp,
84 enum xfs_rmap_intent_type type,
85 uint64_t owner,
86 int whichfork,
87 xfs_fileoff_t startoff,
88 xfs_fsblock_t startblock,
89 xfs_filblks_t blockcount,
90 xfs_exntst_t state,
91 struct xfs_btree_cur **pcur)
92{
93 int error;
94
95 error = xfs_rmap_finish_one(tp, type, owner, whichfork, startoff,
96 startblock, blockcount, state, pcur);
97
98 /*
99 * Mark the transaction dirty, even on error. This ensures the
100 * transaction is aborted, which:
101 *
102 * 1.) releases the RUI and frees the RUD
103 * 2.) shuts down the filesystem
104 */
105 tp->t_flags |= XFS_TRANS_DIRTY;
106 set_bit(XFS_LI_DIRTY, &rudp->rud_item.li_flags);
107
108 return error;
109}
110
111/* Sort rmap intents by AG. */
112static int
113xfs_rmap_update_diff_items(
114 void *priv,
115 struct list_head *a,
116 struct list_head *b)
117{
118 struct xfs_mount *mp = priv;
119 struct xfs_rmap_intent *ra;
120 struct xfs_rmap_intent *rb;
121
122 ra = container_of(a, struct xfs_rmap_intent, ri_list);
123 rb = container_of(b, struct xfs_rmap_intent, ri_list);
124 return XFS_FSB_TO_AGNO(mp, ra->ri_bmap.br_startblock) -
125 XFS_FSB_TO_AGNO(mp, rb->ri_bmap.br_startblock);
126}
127
128/* Get an RUI. */
129STATIC void *
130xfs_rmap_update_create_intent(
131 struct xfs_trans *tp,
132 unsigned int count)
133{
134 struct xfs_rui_log_item *ruip;
135
136 ASSERT(tp != NULL);
137 ASSERT(count > 0);
138
139 ruip = xfs_rui_init(tp->t_mountp, count);
140 ASSERT(ruip != NULL);
141
142 /*
143 * Get a log_item_desc to point at the new item.
144 */
145 xfs_trans_add_item(tp, &ruip->rui_item);
146 return ruip;
147}
148
149/* Log rmap updates in the intent item. */
150STATIC void
151xfs_rmap_update_log_item(
152 struct xfs_trans *tp,
153 void *intent,
154 struct list_head *item)
155{
156 struct xfs_rui_log_item *ruip = intent;
157 struct xfs_rmap_intent *rmap;
158 uint next_extent;
159 struct xfs_map_extent *map;
160
161 rmap = container_of(item, struct xfs_rmap_intent, ri_list);
162
163 tp->t_flags |= XFS_TRANS_DIRTY;
164 set_bit(XFS_LI_DIRTY, &ruip->rui_item.li_flags);
165
166 /*
167 * atomic_inc_return gives us the value after the increment;
168 * we want to use it as an array index so we need to subtract 1 from
169 * it.
170 */
171 next_extent = atomic_inc_return(&ruip->rui_next_extent) - 1;
172 ASSERT(next_extent < ruip->rui_format.rui_nextents);
173 map = &ruip->rui_format.rui_extents[next_extent];
174 map->me_owner = rmap->ri_owner;
175 map->me_startblock = rmap->ri_bmap.br_startblock;
176 map->me_startoff = rmap->ri_bmap.br_startoff;
177 map->me_len = rmap->ri_bmap.br_blockcount;
178 xfs_trans_set_rmap_flags(map, rmap->ri_type, rmap->ri_whichfork,
179 rmap->ri_bmap.br_state);
180}
181
182/* Get an RUD so we can process all the deferred rmap updates. */
183STATIC void *
184xfs_rmap_update_create_done(
185 struct xfs_trans *tp,
186 void *intent,
187 unsigned int count)
188{
189 return xfs_trans_get_rud(tp, intent);
190}
191
192/* Process a deferred rmap update. */
193STATIC int
194xfs_rmap_update_finish_item(
195 struct xfs_trans *tp,
196 struct list_head *item,
197 void *done_item,
198 void **state)
199{
200 struct xfs_rmap_intent *rmap;
201 int error;
202
203 rmap = container_of(item, struct xfs_rmap_intent, ri_list);
204 error = xfs_trans_log_finish_rmap_update(tp, done_item,
205 rmap->ri_type,
206 rmap->ri_owner, rmap->ri_whichfork,
207 rmap->ri_bmap.br_startoff,
208 rmap->ri_bmap.br_startblock,
209 rmap->ri_bmap.br_blockcount,
210 rmap->ri_bmap.br_state,
211 (struct xfs_btree_cur **)state);
212 kmem_free(rmap);
213 return error;
214}
215
216/* Clean up after processing deferred rmaps. */
217STATIC void
218xfs_rmap_update_finish_cleanup(
219 struct xfs_trans *tp,
220 void *state,
221 int error)
222{
223 struct xfs_btree_cur *rcur = state;
224
225 xfs_rmap_finish_one_cleanup(tp, rcur, error);
226}
227
228/* Abort all pending RUIs. */
229STATIC void
230xfs_rmap_update_abort_intent(
231 void *intent)
232{
233 xfs_rui_release(intent);
234}
235
236/* Cancel a deferred rmap update. */
237STATIC void
238xfs_rmap_update_cancel_item(
239 struct list_head *item)
240{
241 struct xfs_rmap_intent *rmap;
242
243 rmap = container_of(item, struct xfs_rmap_intent, ri_list);
244 kmem_free(rmap);
245}
246
247const struct xfs_defer_op_type xfs_rmap_update_defer_type = {
248 .max_items = XFS_RUI_MAX_FAST_EXTENTS,
249 .diff_items = xfs_rmap_update_diff_items,
250 .create_intent = xfs_rmap_update_create_intent,
251 .abort_intent = xfs_rmap_update_abort_intent,
252 .log_item = xfs_rmap_update_log_item,
253 .create_done = xfs_rmap_update_create_done,
254 .finish_item = xfs_rmap_update_finish_item,
255 .finish_cleanup = xfs_rmap_update_finish_cleanup,
256 .cancel_item = xfs_rmap_update_cancel_item,
257};
generated by cgit v1.2.2 (git 2.25.0) at 2026-01-06 02:10:39 -0500