1 // SPDX-License-Identifier: GPL-2.0-only 1 // SPDX-License-Identifier: GPL-2.0-only
2 /* 2 /*
3 * Copyright (C) Sistina Software, Inc. 1997- 3 * Copyright (C) Sistina Software, Inc. 1997-2003 All rights reserved.
4 * Copyright (C) 2004-2006 Red Hat, Inc. All 4 * Copyright (C) 2004-2006 Red Hat, Inc. All rights reserved.
5 */ 5 */
6 6
7 #include <linux/sched.h> 7 #include <linux/sched.h>
8 #include <linux/slab.h> 8 #include <linux/slab.h>
9 #include <linux/spinlock.h> 9 #include <linux/spinlock.h>
10 #include <linux/completion.h> 10 #include <linux/completion.h>
11 #include <linux/buffer_head.h> 11 #include <linux/buffer_head.h>
12 #include <linux/mempool.h> 12 #include <linux/mempool.h>
13 #include <linux/gfs2_ondisk.h> 13 #include <linux/gfs2_ondisk.h>
14 #include <linux/bio.h> 14 #include <linux/bio.h>
15 #include <linux/fs.h> 15 #include <linux/fs.h>
16 #include <linux/list_sort.h> 16 #include <linux/list_sort.h>
17 #include <linux/blkdev.h> 17 #include <linux/blkdev.h>
18 18
19 #include "bmap.h" 19 #include "bmap.h"
20 #include "dir.h" 20 #include "dir.h"
21 #include "gfs2.h" 21 #include "gfs2.h"
22 #include "incore.h" 22 #include "incore.h"
23 #include "inode.h" 23 #include "inode.h"
24 #include "glock.h" 24 #include "glock.h"
25 #include "glops.h" 25 #include "glops.h"
26 #include "log.h" 26 #include "log.h"
27 #include "lops.h" 27 #include "lops.h"
28 #include "meta_io.h" 28 #include "meta_io.h"
29 #include "recovery.h" 29 #include "recovery.h"
30 #include "rgrp.h" 30 #include "rgrp.h"
31 #include "trans.h" 31 #include "trans.h"
32 #include "util.h" 32 #include "util.h"
33 #include "trace_gfs2.h" 33 #include "trace_gfs2.h"
34 34
35 /** 35 /**
36 * gfs2_pin - Pin a buffer in memory 36 * gfs2_pin - Pin a buffer in memory
37 * @sdp: The superblock 37 * @sdp: The superblock
38 * @bh: The buffer to be pinned 38 * @bh: The buffer to be pinned
39 * 39 *
40 * The log lock must be held when calling this 40 * The log lock must be held when calling this function
41 */ 41 */
42 void gfs2_pin(struct gfs2_sbd *sdp, struct buf 42 void gfs2_pin(struct gfs2_sbd *sdp, struct buffer_head *bh)
43 { 43 {
44 struct gfs2_bufdata *bd; 44 struct gfs2_bufdata *bd;
45 45
46 BUG_ON(!current->journal_info); 46 BUG_ON(!current->journal_info);
47 47
48 clear_buffer_dirty(bh); 48 clear_buffer_dirty(bh);
49 if (test_set_buffer_pinned(bh)) 49 if (test_set_buffer_pinned(bh))
50 gfs2_assert_withdraw(sdp, 0); 50 gfs2_assert_withdraw(sdp, 0);
51 if (!buffer_uptodate(bh)) 51 if (!buffer_uptodate(bh))
52 gfs2_io_error_bh_wd(sdp, bh); 52 gfs2_io_error_bh_wd(sdp, bh);
53 bd = bh->b_private; 53 bd = bh->b_private;
54 /* If this buffer is in the AIL and it 54 /* If this buffer is in the AIL and it has already been written
55 * to in-place disk block, remove it f 55 * to in-place disk block, remove it from the AIL.
56 */ 56 */
57 spin_lock(&sdp->sd_ail_lock); 57 spin_lock(&sdp->sd_ail_lock);
58 if (bd->bd_tr) 58 if (bd->bd_tr)
59 list_move(&bd->bd_ail_st_list, 59 list_move(&bd->bd_ail_st_list, &bd->bd_tr->tr_ail2_list);
60 spin_unlock(&sdp->sd_ail_lock); 60 spin_unlock(&sdp->sd_ail_lock);
61 get_bh(bh); 61 get_bh(bh);
62 atomic_inc(&sdp->sd_log_pinned); 62 atomic_inc(&sdp->sd_log_pinned);
63 trace_gfs2_pin(bd, 1); 63 trace_gfs2_pin(bd, 1);
64 } 64 }
65 65
66 static bool buffer_is_rgrp(const struct gfs2_b 66 static bool buffer_is_rgrp(const struct gfs2_bufdata *bd)
67 { 67 {
68 return bd->bd_gl->gl_name.ln_type == L 68 return bd->bd_gl->gl_name.ln_type == LM_TYPE_RGRP;
69 } 69 }
70 70
71 static void maybe_release_space(struct gfs2_bu 71 static void maybe_release_space(struct gfs2_bufdata *bd)
72 { 72 {
73 struct gfs2_glock *gl = bd->bd_gl; 73 struct gfs2_glock *gl = bd->bd_gl;
74 struct gfs2_sbd *sdp = gl->gl_name.ln_ 74 struct gfs2_sbd *sdp = gl->gl_name.ln_sbd;
75 struct gfs2_rgrpd *rgd = gfs2_glock2rg 75 struct gfs2_rgrpd *rgd = gfs2_glock2rgrp(gl);
76 unsigned int index = bd->bd_bh->b_bloc 76 unsigned int index = bd->bd_bh->b_blocknr - gl->gl_name.ln_number;
77 struct gfs2_bitmap *bi = rgd->rd_bits 77 struct gfs2_bitmap *bi = rgd->rd_bits + index;
78 78
79 rgrp_lock_local(rgd); 79 rgrp_lock_local(rgd);
80 if (bi->bi_clone == NULL) 80 if (bi->bi_clone == NULL)
81 goto out; 81 goto out;
82 if (sdp->sd_args.ar_discard) 82 if (sdp->sd_args.ar_discard)
83 gfs2_rgrp_send_discards(sdp, r 83 gfs2_rgrp_send_discards(sdp, rgd->rd_data0, bd->bd_bh, bi, 1, NULL);
84 memcpy(bi->bi_clone + bi->bi_offset, 84 memcpy(bi->bi_clone + bi->bi_offset,
85 bd->bd_bh->b_data + bi->bi_offs 85 bd->bd_bh->b_data + bi->bi_offset, bi->bi_bytes);
86 clear_bit(GBF_FULL, &bi->bi_flags); 86 clear_bit(GBF_FULL, &bi->bi_flags);
87 rgd->rd_free_clone = rgd->rd_free; 87 rgd->rd_free_clone = rgd->rd_free;
88 BUG_ON(rgd->rd_free_clone < rgd->rd_re 88 BUG_ON(rgd->rd_free_clone < rgd->rd_reserved);
89 rgd->rd_extfail_pt = rgd->rd_free; 89 rgd->rd_extfail_pt = rgd->rd_free;
90 90
91 out: 91 out:
92 rgrp_unlock_local(rgd); 92 rgrp_unlock_local(rgd);
93 } 93 }
94 94
95 /** 95 /**
96 * gfs2_unpin - Unpin a buffer 96 * gfs2_unpin - Unpin a buffer
97 * @sdp: the filesystem the buffer belongs to 97 * @sdp: the filesystem the buffer belongs to
98 * @bh: The buffer to unpin 98 * @bh: The buffer to unpin
99 * @tr: The system transaction being flushed !! 99 * @ai:
>> 100 * @flags: The inode dirty flags
>> 101 *
100 */ 102 */
101 103
102 static void gfs2_unpin(struct gfs2_sbd *sdp, s 104 static void gfs2_unpin(struct gfs2_sbd *sdp, struct buffer_head *bh,
103 struct gfs2_trans *tr) 105 struct gfs2_trans *tr)
104 { 106 {
105 struct gfs2_bufdata *bd = bh->b_privat 107 struct gfs2_bufdata *bd = bh->b_private;
106 108
107 BUG_ON(!buffer_uptodate(bh)); 109 BUG_ON(!buffer_uptodate(bh));
108 BUG_ON(!buffer_pinned(bh)); 110 BUG_ON(!buffer_pinned(bh));
109 111
110 lock_buffer(bh); 112 lock_buffer(bh);
111 mark_buffer_dirty(bh); 113 mark_buffer_dirty(bh);
112 clear_buffer_pinned(bh); 114 clear_buffer_pinned(bh);
113 115
114 if (buffer_is_rgrp(bd)) 116 if (buffer_is_rgrp(bd))
115 maybe_release_space(bd); 117 maybe_release_space(bd);
116 118
117 spin_lock(&sdp->sd_ail_lock); 119 spin_lock(&sdp->sd_ail_lock);
118 if (bd->bd_tr) { 120 if (bd->bd_tr) {
119 list_del(&bd->bd_ail_st_list); 121 list_del(&bd->bd_ail_st_list);
120 brelse(bh); 122 brelse(bh);
121 } else { 123 } else {
122 struct gfs2_glock *gl = bd->bd 124 struct gfs2_glock *gl = bd->bd_gl;
123 list_add(&bd->bd_ail_gl_list, 125 list_add(&bd->bd_ail_gl_list, &gl->gl_ail_list);
124 atomic_inc(&gl->gl_ail_count); 126 atomic_inc(&gl->gl_ail_count);
125 } 127 }
126 bd->bd_tr = tr; 128 bd->bd_tr = tr;
127 list_add(&bd->bd_ail_st_list, &tr->tr_ 129 list_add(&bd->bd_ail_st_list, &tr->tr_ail1_list);
128 spin_unlock(&sdp->sd_ail_lock); 130 spin_unlock(&sdp->sd_ail_lock);
129 131
130 clear_bit(GLF_LFLUSH, &bd->bd_gl->gl_f 132 clear_bit(GLF_LFLUSH, &bd->bd_gl->gl_flags);
131 trace_gfs2_pin(bd, 0); 133 trace_gfs2_pin(bd, 0);
132 unlock_buffer(bh); 134 unlock_buffer(bh);
133 atomic_dec(&sdp->sd_log_pinned); 135 atomic_dec(&sdp->sd_log_pinned);
134 } 136 }
135 137
136 void gfs2_log_incr_head(struct gfs2_sbd *sdp) 138 void gfs2_log_incr_head(struct gfs2_sbd *sdp)
137 { 139 {
138 BUG_ON((sdp->sd_log_flush_head == sdp- 140 BUG_ON((sdp->sd_log_flush_head == sdp->sd_log_tail) &&
139 (sdp->sd_log_flush_head != sdp- 141 (sdp->sd_log_flush_head != sdp->sd_log_head));
140 142
141 if (++sdp->sd_log_flush_head == sdp->s 143 if (++sdp->sd_log_flush_head == sdp->sd_jdesc->jd_blocks)
142 sdp->sd_log_flush_head = 0; 144 sdp->sd_log_flush_head = 0;
143 } 145 }
144 146
145 u64 gfs2_log_bmap(struct gfs2_jdesc *jd, unsig 147 u64 gfs2_log_bmap(struct gfs2_jdesc *jd, unsigned int lblock)
146 { 148 {
147 struct gfs2_journal_extent *je; 149 struct gfs2_journal_extent *je;
148 150
149 list_for_each_entry(je, &jd->extent_li 151 list_for_each_entry(je, &jd->extent_list, list) {
150 if (lblock >= je->lblock && lb 152 if (lblock >= je->lblock && lblock < je->lblock + je->blocks)
151 return je->dblock + lb 153 return je->dblock + lblock - je->lblock;
152 } 154 }
153 155
154 return -1; 156 return -1;
155 } 157 }
156 158
157 /** 159 /**
158 * gfs2_end_log_write_bh - end log write of pa 160 * gfs2_end_log_write_bh - end log write of pagecache data with buffers
159 * @sdp: The superblock 161 * @sdp: The superblock
160 * @bvec: The bio_vec 162 * @bvec: The bio_vec
161 * @error: The i/o status 163 * @error: The i/o status
162 * 164 *
163 * This finds the relevant buffers and unlocks 165 * This finds the relevant buffers and unlocks them and sets the
164 * error flag according to the status of the i 166 * error flag according to the status of the i/o request. This is
165 * used when the log is writing data which has 167 * used when the log is writing data which has an in-place version
166 * that is pinned in the pagecache. 168 * that is pinned in the pagecache.
167 */ 169 */
168 170
169 static void gfs2_end_log_write_bh(struct gfs2_ 171 static void gfs2_end_log_write_bh(struct gfs2_sbd *sdp,
170 struct bio_v 172 struct bio_vec *bvec,
171 blk_status_t 173 blk_status_t error)
172 { 174 {
173 struct buffer_head *bh, *next; 175 struct buffer_head *bh, *next;
174 struct page *page = bvec->bv_page; 176 struct page *page = bvec->bv_page;
175 unsigned size; 177 unsigned size;
176 178
177 bh = page_buffers(page); 179 bh = page_buffers(page);
178 size = bvec->bv_len; 180 size = bvec->bv_len;
179 while (bh_offset(bh) < bvec->bv_offset 181 while (bh_offset(bh) < bvec->bv_offset)
180 bh = bh->b_this_page; 182 bh = bh->b_this_page;
181 do { 183 do {
182 if (error) 184 if (error)
183 mark_buffer_write_io_e 185 mark_buffer_write_io_error(bh);
184 unlock_buffer(bh); 186 unlock_buffer(bh);
185 next = bh->b_this_page; 187 next = bh->b_this_page;
186 size -= bh->b_size; 188 size -= bh->b_size;
187 brelse(bh); 189 brelse(bh);
188 bh = next; 190 bh = next;
189 } while(bh && size); 191 } while(bh && size);
190 } 192 }
191 193
192 /** 194 /**
193 * gfs2_end_log_write - end of i/o to the log 195 * gfs2_end_log_write - end of i/o to the log
194 * @bio: The bio 196 * @bio: The bio
195 * 197 *
196 * Each bio_vec contains either data from the 198 * Each bio_vec contains either data from the pagecache or data
197 * relating to the log itself. Here we iterate 199 * relating to the log itself. Here we iterate over the bio_vec
198 * array, processing both kinds of data. 200 * array, processing both kinds of data.
199 * 201 *
200 */ 202 */
201 203
202 static void gfs2_end_log_write(struct bio *bio 204 static void gfs2_end_log_write(struct bio *bio)
203 { 205 {
204 struct gfs2_sbd *sdp = bio->bi_private 206 struct gfs2_sbd *sdp = bio->bi_private;
205 struct bio_vec *bvec; 207 struct bio_vec *bvec;
206 struct page *page; 208 struct page *page;
207 struct bvec_iter_all iter_all; 209 struct bvec_iter_all iter_all;
208 210
209 if (bio->bi_status) { 211 if (bio->bi_status) {
210 if (!cmpxchg(&sdp->sd_log_erro 212 if (!cmpxchg(&sdp->sd_log_error, 0, (int)bio->bi_status))
211 fs_err(sdp, "Error %d 213 fs_err(sdp, "Error %d writing to journal, jid=%u\n",
212 bio->bi_status, 214 bio->bi_status, sdp->sd_jdesc->jd_jid);
213 gfs2_withdraw_delayed(sdp); 215 gfs2_withdraw_delayed(sdp);
214 /* prevent more writes to the 216 /* prevent more writes to the journal */
215 clear_bit(SDF_JOURNAL_LIVE, &s 217 clear_bit(SDF_JOURNAL_LIVE, &sdp->sd_flags);
216 wake_up(&sdp->sd_logd_waitq); 218 wake_up(&sdp->sd_logd_waitq);
217 } 219 }
218 220
219 bio_for_each_segment_all(bvec, bio, it 221 bio_for_each_segment_all(bvec, bio, iter_all) {
220 page = bvec->bv_page; 222 page = bvec->bv_page;
221 if (page_has_buffers(page)) 223 if (page_has_buffers(page))
222 gfs2_end_log_write_bh( 224 gfs2_end_log_write_bh(sdp, bvec, bio->bi_status);
223 else 225 else
224 mempool_free(page, gfs 226 mempool_free(page, gfs2_page_pool);
225 } 227 }
226 228
227 bio_put(bio); 229 bio_put(bio);
228 if (atomic_dec_and_test(&sdp->sd_log_i 230 if (atomic_dec_and_test(&sdp->sd_log_in_flight))
229 wake_up(&sdp->sd_log_flush_wai 231 wake_up(&sdp->sd_log_flush_wait);
230 } 232 }
231 233
232 /** 234 /**
233 * gfs2_log_submit_bio - Submit any pending lo 235 * gfs2_log_submit_bio - Submit any pending log bio
234 * @biop: Address of the bio pointer 236 * @biop: Address of the bio pointer
235 * @opf: REQ_OP | op_flags 237 * @opf: REQ_OP | op_flags
236 * 238 *
237 * Submit any pending part-built or full bio t 239 * Submit any pending part-built or full bio to the block device. If
238 * there is no pending bio, then this is a no- 240 * there is no pending bio, then this is a no-op.
239 */ 241 */
240 242
241 void gfs2_log_submit_bio(struct bio **biop, bl !! 243 void gfs2_log_submit_bio(struct bio **biop, int opf)
242 { 244 {
243 struct bio *bio = *biop; 245 struct bio *bio = *biop;
244 if (bio) { 246 if (bio) {
245 struct gfs2_sbd *sdp = bio->bi 247 struct gfs2_sbd *sdp = bio->bi_private;
246 atomic_inc(&sdp->sd_log_in_fli 248 atomic_inc(&sdp->sd_log_in_flight);
247 bio->bi_opf = opf; 249 bio->bi_opf = opf;
248 submit_bio(bio); 250 submit_bio(bio);
249 *biop = NULL; 251 *biop = NULL;
250 } 252 }
251 } 253 }
252 254
253 /** 255 /**
254 * gfs2_log_alloc_bio - Allocate a bio 256 * gfs2_log_alloc_bio - Allocate a bio
255 * @sdp: The super block 257 * @sdp: The super block
256 * @blkno: The device block number we want to 258 * @blkno: The device block number we want to write to
257 * @end_io: The bi_end_io callback 259 * @end_io: The bi_end_io callback
258 * 260 *
259 * Allocate a new bio, initialize it with the 261 * Allocate a new bio, initialize it with the given parameters and return it.
260 * 262 *
261 * Returns: The newly allocated bio 263 * Returns: The newly allocated bio
262 */ 264 */
263 265
264 static struct bio *gfs2_log_alloc_bio(struct g 266 static struct bio *gfs2_log_alloc_bio(struct gfs2_sbd *sdp, u64 blkno,
265 bio_end_ 267 bio_end_io_t *end_io)
266 { 268 {
267 struct super_block *sb = sdp->sd_vfs; 269 struct super_block *sb = sdp->sd_vfs;
268 struct bio *bio = bio_alloc(sb->s_bdev !! 270 struct bio *bio = bio_alloc(GFP_NOIO, BIO_MAX_VECS);
269 271
270 bio->bi_iter.bi_sector = blkno << sdp- 272 bio->bi_iter.bi_sector = blkno << sdp->sd_fsb2bb_shift;
>> 273 bio_set_dev(bio, sb->s_bdev);
271 bio->bi_end_io = end_io; 274 bio->bi_end_io = end_io;
272 bio->bi_private = sdp; 275 bio->bi_private = sdp;
273 276
274 return bio; 277 return bio;
275 } 278 }
276 279
277 /** 280 /**
278 * gfs2_log_get_bio - Get cached log bio, or a 281 * gfs2_log_get_bio - Get cached log bio, or allocate a new one
279 * @sdp: The super block 282 * @sdp: The super block
280 * @blkno: The device block number we want to 283 * @blkno: The device block number we want to write to
281 * @biop: The bio to get or allocate !! 284 * @bio: The bio to get or allocate
282 * @op: REQ_OP 285 * @op: REQ_OP
283 * @end_io: The bi_end_io callback 286 * @end_io: The bi_end_io callback
284 * @flush: Always flush the current bio and al 287 * @flush: Always flush the current bio and allocate a new one?
285 * 288 *
286 * If there is a cached bio, then if the next 289 * If there is a cached bio, then if the next block number is sequential
287 * with the previous one, return it, otherwise 290 * with the previous one, return it, otherwise flush the bio to the
288 * device. If there is no cached bio, or we ju 291 * device. If there is no cached bio, or we just flushed it, then
289 * allocate a new one. 292 * allocate a new one.
290 * 293 *
291 * Returns: The bio to use for log writes 294 * Returns: The bio to use for log writes
292 */ 295 */
293 296
294 static struct bio *gfs2_log_get_bio(struct gfs 297 static struct bio *gfs2_log_get_bio(struct gfs2_sbd *sdp, u64 blkno,
295 struct bio !! 298 struct bio **biop, int op,
296 bio_end_io 299 bio_end_io_t *end_io, bool flush)
297 { 300 {
298 struct bio *bio = *biop; 301 struct bio *bio = *biop;
299 302
300 if (bio) { 303 if (bio) {
301 u64 nblk; 304 u64 nblk;
302 305
303 nblk = bio_end_sector(bio); 306 nblk = bio_end_sector(bio);
304 nblk >>= sdp->sd_fsb2bb_shift; 307 nblk >>= sdp->sd_fsb2bb_shift;
305 if (blkno == nblk && !flush) 308 if (blkno == nblk && !flush)
306 return bio; 309 return bio;
307 gfs2_log_submit_bio(biop, op); 310 gfs2_log_submit_bio(biop, op);
308 } 311 }
309 312
310 *biop = gfs2_log_alloc_bio(sdp, blkno, 313 *biop = gfs2_log_alloc_bio(sdp, blkno, end_io);
311 return *biop; 314 return *biop;
312 } 315 }
313 316
314 /** 317 /**
315 * gfs2_log_write - write to log 318 * gfs2_log_write - write to log
316 * @sdp: the filesystem 319 * @sdp: the filesystem
317 * @jd: The journal descriptor <<
318 * @page: the page to write 320 * @page: the page to write
319 * @size: the size of the data to write 321 * @size: the size of the data to write
320 * @offset: the offset within the page 322 * @offset: the offset within the page
321 * @blkno: block number of the log entry 323 * @blkno: block number of the log entry
322 * 324 *
323 * Try and add the page segment to the current 325 * Try and add the page segment to the current bio. If that fails,
324 * submit the current bio to the device and cr 326 * submit the current bio to the device and create a new one, and
325 * then add the page segment to that. 327 * then add the page segment to that.
326 */ 328 */
327 329
328 void gfs2_log_write(struct gfs2_sbd *sdp, stru 330 void gfs2_log_write(struct gfs2_sbd *sdp, struct gfs2_jdesc *jd,
329 struct page *page, unsigne 331 struct page *page, unsigned size, unsigned offset,
330 u64 blkno) 332 u64 blkno)
331 { 333 {
332 struct bio *bio; 334 struct bio *bio;
333 int ret; 335 int ret;
334 336
335 bio = gfs2_log_get_bio(sdp, blkno, &jd 337 bio = gfs2_log_get_bio(sdp, blkno, &jd->jd_log_bio, REQ_OP_WRITE,
336 gfs2_end_log_wr 338 gfs2_end_log_write, false);
337 ret = bio_add_page(bio, page, size, of 339 ret = bio_add_page(bio, page, size, offset);
338 if (ret == 0) { 340 if (ret == 0) {
339 bio = gfs2_log_get_bio(sdp, bl 341 bio = gfs2_log_get_bio(sdp, blkno, &jd->jd_log_bio,
340 REQ_OP_ 342 REQ_OP_WRITE, gfs2_end_log_write, true);
341 ret = bio_add_page(bio, page, 343 ret = bio_add_page(bio, page, size, offset);
342 WARN_ON(ret == 0); 344 WARN_ON(ret == 0);
343 } 345 }
344 } 346 }
345 347
346 /** 348 /**
347 * gfs2_log_write_bh - write a buffer's conten 349 * gfs2_log_write_bh - write a buffer's content to the log
348 * @sdp: The super block 350 * @sdp: The super block
349 * @bh: The buffer pointing to the in-place lo 351 * @bh: The buffer pointing to the in-place location
350 * 352 *
351 * This writes the content of the buffer to th 353 * This writes the content of the buffer to the next available location
352 * in the log. The buffer will be unlocked onc 354 * in the log. The buffer will be unlocked once the i/o to the log has
353 * completed. 355 * completed.
354 */ 356 */
355 357
356 static void gfs2_log_write_bh(struct gfs2_sbd 358 static void gfs2_log_write_bh(struct gfs2_sbd *sdp, struct buffer_head *bh)
357 { 359 {
358 u64 dblock; 360 u64 dblock;
359 361
360 dblock = gfs2_log_bmap(sdp->sd_jdesc, 362 dblock = gfs2_log_bmap(sdp->sd_jdesc, sdp->sd_log_flush_head);
361 gfs2_log_incr_head(sdp); 363 gfs2_log_incr_head(sdp);
362 gfs2_log_write(sdp, sdp->sd_jdesc, bh- 364 gfs2_log_write(sdp, sdp->sd_jdesc, bh->b_page, bh->b_size,
363 bh_offset(bh), dblock); 365 bh_offset(bh), dblock);
364 } 366 }
365 367
366 /** 368 /**
367 * gfs2_log_write_page - write one block store 369 * gfs2_log_write_page - write one block stored in a page, into the log
368 * @sdp: The superblock 370 * @sdp: The superblock
369 * @page: The struct page 371 * @page: The struct page
370 * 372 *
371 * This writes the first block-sized part of t 373 * This writes the first block-sized part of the page into the log. Note
372 * that the page must have been allocated from 374 * that the page must have been allocated from the gfs2_page_pool mempool
373 * and that after this has been called, owners 375 * and that after this has been called, ownership has been transferred and
374 * the page may be freed at any time. 376 * the page may be freed at any time.
375 */ 377 */
376 378
377 static void gfs2_log_write_page(struct gfs2_sb 379 static void gfs2_log_write_page(struct gfs2_sbd *sdp, struct page *page)
378 { 380 {
379 struct super_block *sb = sdp->sd_vfs; 381 struct super_block *sb = sdp->sd_vfs;
380 u64 dblock; 382 u64 dblock;
381 383
382 dblock = gfs2_log_bmap(sdp->sd_jdesc, 384 dblock = gfs2_log_bmap(sdp->sd_jdesc, sdp->sd_log_flush_head);
383 gfs2_log_incr_head(sdp); 385 gfs2_log_incr_head(sdp);
384 gfs2_log_write(sdp, sdp->sd_jdesc, pag 386 gfs2_log_write(sdp, sdp->sd_jdesc, page, sb->s_blocksize, 0, dblock);
385 } 387 }
386 388
387 /** 389 /**
388 * gfs2_end_log_read - end I/O callback for re 390 * gfs2_end_log_read - end I/O callback for reads from the log
389 * @bio: The bio 391 * @bio: The bio
390 * 392 *
391 * Simply unlock the pages in the bio. The mai 393 * Simply unlock the pages in the bio. The main thread will wait on them and
392 * process them in order as necessary. 394 * process them in order as necessary.
393 */ 395 */
>> 396
394 static void gfs2_end_log_read(struct bio *bio) 397 static void gfs2_end_log_read(struct bio *bio)
395 { 398 {
396 int error = blk_status_to_errno(bio->b !! 399 struct page *page;
397 struct folio_iter fi; !! 400 struct bio_vec *bvec;
>> 401 struct bvec_iter_all iter_all;
398 402
399 bio_for_each_folio_all(fi, bio) { !! 403 bio_for_each_segment_all(bvec, bio, iter_all) {
400 /* We're abusing wb_err to get !! 404 page = bvec->bv_page;
401 filemap_set_wb_err(fi.folio->m !! 405 if (bio->bi_status) {
402 folio_end_read(fi.folio, !erro !! 406 int err = blk_status_to_errno(bio->bi_status);
>> 407
>> 408 SetPageError(page);
>> 409 mapping_set_error(page->mapping, err);
>> 410 }
>> 411 unlock_page(page);
403 } 412 }
404 413
405 bio_put(bio); 414 bio_put(bio);
406 } 415 }
407 416
408 /** 417 /**
409 * gfs2_jhead_pg_srch - Look for the journal h 418 * gfs2_jhead_pg_srch - Look for the journal head in a given page.
410 * @jd: The journal descriptor 419 * @jd: The journal descriptor
411 * @head: The journal head to start from <<
412 * @page: The page to look in 420 * @page: The page to look in
413 * 421 *
414 * Returns: 1 if found, 0 otherwise. 422 * Returns: 1 if found, 0 otherwise.
415 */ 423 */
416 424
417 static bool gfs2_jhead_pg_srch(struct gfs2_jde 425 static bool gfs2_jhead_pg_srch(struct gfs2_jdesc *jd,
418 struct gfs2_log_ 426 struct gfs2_log_header_host *head,
419 struct page *pag 427 struct page *page)
420 { 428 {
421 struct gfs2_sbd *sdp = GFS2_SB(jd->jd_ 429 struct gfs2_sbd *sdp = GFS2_SB(jd->jd_inode);
422 struct gfs2_log_header_host lh; 430 struct gfs2_log_header_host lh;
423 void *kaddr; !! 431 void *kaddr = kmap_atomic(page);
424 unsigned int offset; 432 unsigned int offset;
425 bool ret = false; 433 bool ret = false;
426 434
427 kaddr = kmap_local_page(page); <<
428 for (offset = 0; offset < PAGE_SIZE; o 435 for (offset = 0; offset < PAGE_SIZE; offset += sdp->sd_sb.sb_bsize) {
429 if (!__get_log_header(sdp, kad 436 if (!__get_log_header(sdp, kaddr + offset, 0, &lh)) {
430 if (lh.lh_sequence >= 437 if (lh.lh_sequence >= head->lh_sequence)
431 *head = lh; 438 *head = lh;
432 else { 439 else {
433 ret = true; 440 ret = true;
434 break; 441 break;
435 } 442 }
436 } 443 }
437 } 444 }
438 kunmap_local(kaddr); !! 445 kunmap_atomic(kaddr);
439 return ret; 446 return ret;
440 } 447 }
441 448
442 /** 449 /**
443 * gfs2_jhead_process_page - Search/cleanup a 450 * gfs2_jhead_process_page - Search/cleanup a page
444 * @jd: The journal descriptor 451 * @jd: The journal descriptor
445 * @index: Index of the page to look into 452 * @index: Index of the page to look into
446 * @head: The journal head to start from <<
447 * @done: If set, perform only cleanup, else s 453 * @done: If set, perform only cleanup, else search and set if found.
448 * 454 *
449 * Find the folio with 'index' in the journal' !! 455 * Find the page with 'index' in the journal's mapping. Search the page for
450 * the journal head if requested (cleanup == f 456 * the journal head if requested (cleanup == false). Release refs on the
451 * folio so the page cache can reclaim it. We !! 457 * page so the page cache can reclaim it (put_page() twice). We grabbed a
452 * reference on this folio twice, first when w !! 458 * reference on this page two times, first when we did a find_or_create_page()
453 * to obtain the folio to add it to the bio an !! 459 * to obtain the page to add it to the bio and second when we do a
454 * filemap_get_folio() here to get the folio t !! 460 * find_get_page() here to get the page to wait on while I/O on it is being
455 * completed. 461 * completed.
456 * This function is also used to free up a fol !! 462 * This function is also used to free up a page we might've grabbed but not
457 * used. Maybe we added it to a bio, but not s 463 * used. Maybe we added it to a bio, but not submitted it for I/O. Or we
458 * submitted the I/O, but we already found the 464 * submitted the I/O, but we already found the jhead so we only need to drop
459 * our references to the folio. !! 465 * our references to the page.
460 */ 466 */
461 467
462 static void gfs2_jhead_process_page(struct gfs 468 static void gfs2_jhead_process_page(struct gfs2_jdesc *jd, unsigned long index,
463 struct gfs 469 struct gfs2_log_header_host *head,
464 bool *done 470 bool *done)
465 { 471 {
466 struct folio *folio; !! 472 struct page *page;
467 473
468 folio = filemap_get_folio(jd->jd_inode !! 474 page = find_get_page(jd->jd_inode->i_mapping, index);
>> 475 wait_on_page_locked(page);
469 476
470 folio_wait_locked(folio); !! 477 if (PageError(page))
471 if (!folio_test_uptodate(folio)) <<
472 *done = true; 478 *done = true;
473 479
474 if (!*done) 480 if (!*done)
475 *done = gfs2_jhead_pg_srch(jd, !! 481 *done = gfs2_jhead_pg_srch(jd, head, page);
476 482
477 /* filemap_get_folio() and the earlier !! 483 put_page(page); /* Once for find_get_page */
478 folio_put_refs(folio, 2); !! 484 put_page(page); /* Once more for find_or_create_page */
479 } 485 }
480 486
481 static struct bio *gfs2_chain_bio(struct bio * 487 static struct bio *gfs2_chain_bio(struct bio *prev, unsigned int nr_iovecs)
482 { 488 {
483 struct bio *new; 489 struct bio *new;
484 490
485 new = bio_alloc(prev->bi_bdev, nr_iove !! 491 new = bio_alloc(GFP_NOIO, nr_iovecs);
486 bio_clone_blkg_association(new, prev); !! 492 bio_copy_dev(new, prev);
487 new->bi_iter.bi_sector = bio_end_secto 493 new->bi_iter.bi_sector = bio_end_sector(prev);
>> 494 new->bi_opf = prev->bi_opf;
>> 495 new->bi_write_hint = prev->bi_write_hint;
488 bio_chain(new, prev); 496 bio_chain(new, prev);
489 submit_bio(prev); 497 submit_bio(prev);
490 return new; 498 return new;
491 } 499 }
492 500
493 /** 501 /**
494 * gfs2_find_jhead - find the head of a log 502 * gfs2_find_jhead - find the head of a log
495 * @jd: The journal descriptor 503 * @jd: The journal descriptor
496 * @head: The log descriptor for the head of t 504 * @head: The log descriptor for the head of the log is returned here
497 * @keep_cache: If set inode pages will not be <<
498 * 505 *
499 * Do a search of a journal by reading it in l 506 * Do a search of a journal by reading it in large chunks using bios and find
500 * the valid log entry with the highest sequen 507 * the valid log entry with the highest sequence number. (i.e. the log head)
501 * 508 *
502 * Returns: 0 on success, errno otherwise 509 * Returns: 0 on success, errno otherwise
503 */ 510 */
504 int gfs2_find_jhead(struct gfs2_jdesc *jd, str 511 int gfs2_find_jhead(struct gfs2_jdesc *jd, struct gfs2_log_header_host *head,
505 bool keep_cache) 512 bool keep_cache)
506 { 513 {
507 struct gfs2_sbd *sdp = GFS2_SB(jd->jd_ 514 struct gfs2_sbd *sdp = GFS2_SB(jd->jd_inode);
508 struct address_space *mapping = jd->jd 515 struct address_space *mapping = jd->jd_inode->i_mapping;
509 unsigned int block = 0, blocks_submitt 516 unsigned int block = 0, blocks_submitted = 0, blocks_read = 0;
510 unsigned int bsize = sdp->sd_sb.sb_bsi 517 unsigned int bsize = sdp->sd_sb.sb_bsize, off;
511 unsigned int bsize_shift = sdp->sd_sb. 518 unsigned int bsize_shift = sdp->sd_sb.sb_bsize_shift;
512 unsigned int shift = PAGE_SHIFT - bsiz 519 unsigned int shift = PAGE_SHIFT - bsize_shift;
513 unsigned int max_blocks = 2 * 1024 * 1 520 unsigned int max_blocks = 2 * 1024 * 1024 >> bsize_shift;
514 struct gfs2_journal_extent *je; 521 struct gfs2_journal_extent *je;
515 int sz, ret = 0; 522 int sz, ret = 0;
516 struct bio *bio = NULL; 523 struct bio *bio = NULL;
517 struct page *page = NULL; 524 struct page *page = NULL;
518 bool done = false; 525 bool done = false;
519 errseq_t since; 526 errseq_t since;
520 527
521 memset(head, 0, sizeof(*head)); 528 memset(head, 0, sizeof(*head));
522 if (list_empty(&jd->extent_list)) 529 if (list_empty(&jd->extent_list))
523 gfs2_map_journal_extents(sdp, 530 gfs2_map_journal_extents(sdp, jd);
524 531
525 since = filemap_sample_wb_err(mapping) 532 since = filemap_sample_wb_err(mapping);
526 list_for_each_entry(je, &jd->extent_li 533 list_for_each_entry(je, &jd->extent_list, list) {
527 u64 dblock = je->dblock; 534 u64 dblock = je->dblock;
528 535
529 for (; block < je->lblock + je 536 for (; block < je->lblock + je->blocks; block++, dblock++) {
530 if (!page) { 537 if (!page) {
531 page = grab_ca !! 538 page = find_or_create_page(mapping,
>> 539 block >> shift, GFP_NOFS);
532 if (!page) { 540 if (!page) {
533 ret = 541 ret = -ENOMEM;
534 done = 542 done = true;
535 goto o 543 goto out;
536 } 544 }
537 off = 0; 545 off = 0;
538 } 546 }
539 547
540 if (bio && (off || blo 548 if (bio && (off || block < blocks_submitted + max_blocks)) {
541 sector_t secto 549 sector_t sector = dblock << sdp->sd_fsb2bb_shift;
542 550
543 if (bio_end_se 551 if (bio_end_sector(bio) == sector) {
544 sz = b 552 sz = bio_add_page(bio, page, bsize, off);
545 if (sz 553 if (sz == bsize)
546 554 goto block_added;
547 } 555 }
548 if (off) { 556 if (off) {
549 unsign 557 unsigned int blocks =
550 558 (PAGE_SIZE - off) >> bsize_shift;
551 559
552 bio = 560 bio = gfs2_chain_bio(bio, blocks);
553 goto a 561 goto add_block_to_new_bio;
554 } 562 }
555 } 563 }
556 564
557 if (bio) { 565 if (bio) {
558 blocks_submitt 566 blocks_submitted = block;
559 submit_bio(bio 567 submit_bio(bio);
560 } 568 }
561 569
562 bio = gfs2_log_alloc_b 570 bio = gfs2_log_alloc_bio(sdp, dblock, gfs2_end_log_read);
563 bio->bi_opf = REQ_OP_R 571 bio->bi_opf = REQ_OP_READ;
564 add_block_to_new_bio: 572 add_block_to_new_bio:
565 sz = bio_add_page(bio, 573 sz = bio_add_page(bio, page, bsize, off);
566 BUG_ON(sz != bsize); 574 BUG_ON(sz != bsize);
567 block_added: 575 block_added:
568 off += bsize; 576 off += bsize;
569 if (off == PAGE_SIZE) 577 if (off == PAGE_SIZE)
570 page = NULL; 578 page = NULL;
571 if (blocks_submitted < 579 if (blocks_submitted <= blocks_read + max_blocks) {
572 /* Keep at lea 580 /* Keep at least one bio in flight */
573 continue; 581 continue;
574 } 582 }
575 583
576 gfs2_jhead_process_pag 584 gfs2_jhead_process_page(jd, blocks_read >> shift, head, &done);
577 blocks_read += PAGE_SI 585 blocks_read += PAGE_SIZE >> bsize_shift;
578 if (done) 586 if (done)
579 goto out; /* 587 goto out; /* found */
580 } 588 }
581 } 589 }
582 590
583 out: 591 out:
584 if (bio) 592 if (bio)
585 submit_bio(bio); 593 submit_bio(bio);
586 while (blocks_read < block) { 594 while (blocks_read < block) {
587 gfs2_jhead_process_page(jd, bl 595 gfs2_jhead_process_page(jd, blocks_read >> shift, head, &done);
588 blocks_read += PAGE_SIZE >> bs 596 blocks_read += PAGE_SIZE >> bsize_shift;
589 } 597 }
590 598
591 if (!ret) 599 if (!ret)
592 ret = filemap_check_wb_err(map 600 ret = filemap_check_wb_err(mapping, since);
593 601
594 if (!keep_cache) 602 if (!keep_cache)
595 truncate_inode_pages(mapping, 603 truncate_inode_pages(mapping, 0);
596 604
597 return ret; 605 return ret;
598 } 606 }
599 607
600 static struct page *gfs2_get_log_desc(struct g 608 static struct page *gfs2_get_log_desc(struct gfs2_sbd *sdp, u32 ld_type,
601 u32 ld_l 609 u32 ld_length, u32 ld_data1)
602 { 610 {
603 struct page *page = mempool_alloc(gfs2 611 struct page *page = mempool_alloc(gfs2_page_pool, GFP_NOIO);
604 struct gfs2_log_descriptor *ld = page_ 612 struct gfs2_log_descriptor *ld = page_address(page);
605 clear_page(ld); 613 clear_page(ld);
606 ld->ld_header.mh_magic = cpu_to_be32(G 614 ld->ld_header.mh_magic = cpu_to_be32(GFS2_MAGIC);
607 ld->ld_header.mh_type = cpu_to_be32(GF 615 ld->ld_header.mh_type = cpu_to_be32(GFS2_METATYPE_LD);
608 ld->ld_header.mh_format = cpu_to_be32( 616 ld->ld_header.mh_format = cpu_to_be32(GFS2_FORMAT_LD);
609 ld->ld_type = cpu_to_be32(ld_type); 617 ld->ld_type = cpu_to_be32(ld_type);
610 ld->ld_length = cpu_to_be32(ld_length) 618 ld->ld_length = cpu_to_be32(ld_length);
611 ld->ld_data1 = cpu_to_be32(ld_data1); 619 ld->ld_data1 = cpu_to_be32(ld_data1);
612 ld->ld_data2 = 0; 620 ld->ld_data2 = 0;
613 return page; 621 return page;
614 } 622 }
615 623
616 static void gfs2_check_magic(struct buffer_hea 624 static void gfs2_check_magic(struct buffer_head *bh)
617 { 625 {
618 void *kaddr; 626 void *kaddr;
619 __be32 *ptr; 627 __be32 *ptr;
620 628
621 clear_buffer_escaped(bh); 629 clear_buffer_escaped(bh);
622 kaddr = kmap_local_page(bh->b_page); !! 630 kaddr = kmap_atomic(bh->b_page);
623 ptr = kaddr + bh_offset(bh); 631 ptr = kaddr + bh_offset(bh);
624 if (*ptr == cpu_to_be32(GFS2_MAGIC)) 632 if (*ptr == cpu_to_be32(GFS2_MAGIC))
625 set_buffer_escaped(bh); 633 set_buffer_escaped(bh);
626 kunmap_local(kaddr); !! 634 kunmap_atomic(kaddr);
627 } 635 }
628 636
629 static int blocknr_cmp(void *priv, const struc !! 637 static int blocknr_cmp(void *priv, struct list_head *a, struct list_head *b)
630 const struct list_head <<
631 { 638 {
632 struct gfs2_bufdata *bda, *bdb; 639 struct gfs2_bufdata *bda, *bdb;
633 640
634 bda = list_entry(a, struct gfs2_bufdat 641 bda = list_entry(a, struct gfs2_bufdata, bd_list);
635 bdb = list_entry(b, struct gfs2_bufdat 642 bdb = list_entry(b, struct gfs2_bufdata, bd_list);
636 643
637 if (bda->bd_bh->b_blocknr < bdb->bd_bh 644 if (bda->bd_bh->b_blocknr < bdb->bd_bh->b_blocknr)
638 return -1; 645 return -1;
639 if (bda->bd_bh->b_blocknr > bdb->bd_bh 646 if (bda->bd_bh->b_blocknr > bdb->bd_bh->b_blocknr)
640 return 1; 647 return 1;
641 return 0; 648 return 0;
642 } 649 }
643 650
644 static void gfs2_before_commit(struct gfs2_sbd 651 static void gfs2_before_commit(struct gfs2_sbd *sdp, unsigned int limit,
645 unsigned int t 652 unsigned int total, struct list_head *blist,
646 bool is_databu 653 bool is_databuf)
647 { 654 {
648 struct gfs2_log_descriptor *ld; 655 struct gfs2_log_descriptor *ld;
649 struct gfs2_bufdata *bd1 = NULL, *bd2; 656 struct gfs2_bufdata *bd1 = NULL, *bd2;
650 struct page *page; 657 struct page *page;
651 unsigned int num; 658 unsigned int num;
652 unsigned n; 659 unsigned n;
653 __be64 *ptr; 660 __be64 *ptr;
654 661
655 gfs2_log_lock(sdp); 662 gfs2_log_lock(sdp);
656 list_sort(NULL, blist, blocknr_cmp); 663 list_sort(NULL, blist, blocknr_cmp);
657 bd1 = bd2 = list_prepare_entry(bd1, bl 664 bd1 = bd2 = list_prepare_entry(bd1, blist, bd_list);
658 while(total) { 665 while(total) {
659 num = total; 666 num = total;
660 if (total > limit) 667 if (total > limit)
661 num = limit; 668 num = limit;
662 gfs2_log_unlock(sdp); 669 gfs2_log_unlock(sdp);
663 page = gfs2_get_log_desc(sdp, 670 page = gfs2_get_log_desc(sdp,
664 is_da 671 is_databuf ? GFS2_LOG_DESC_JDATA :
665 GFS2_ 672 GFS2_LOG_DESC_METADATA, num + 1, num);
666 ld = page_address(page); 673 ld = page_address(page);
667 gfs2_log_lock(sdp); 674 gfs2_log_lock(sdp);
668 ptr = (__be64 *)(ld + 1); 675 ptr = (__be64 *)(ld + 1);
669 676
670 n = 0; 677 n = 0;
671 list_for_each_entry_continue(b 678 list_for_each_entry_continue(bd1, blist, bd_list) {
672 *ptr++ = cpu_to_be64(b 679 *ptr++ = cpu_to_be64(bd1->bd_bh->b_blocknr);
673 if (is_databuf) { 680 if (is_databuf) {
674 gfs2_check_mag 681 gfs2_check_magic(bd1->bd_bh);
675 *ptr++ = cpu_t 682 *ptr++ = cpu_to_be64(buffer_escaped(bd1->bd_bh) ? 1 : 0);
676 } 683 }
677 if (++n >= num) 684 if (++n >= num)
678 break; 685 break;
679 } 686 }
680 687
681 gfs2_log_unlock(sdp); 688 gfs2_log_unlock(sdp);
682 gfs2_log_write_page(sdp, page) 689 gfs2_log_write_page(sdp, page);
683 gfs2_log_lock(sdp); 690 gfs2_log_lock(sdp);
684 691
685 n = 0; 692 n = 0;
686 list_for_each_entry_continue(b 693 list_for_each_entry_continue(bd2, blist, bd_list) {
687 get_bh(bd2->bd_bh); 694 get_bh(bd2->bd_bh);
688 gfs2_log_unlock(sdp); 695 gfs2_log_unlock(sdp);
689 lock_buffer(bd2->bd_bh 696 lock_buffer(bd2->bd_bh);
690 697
691 if (buffer_escaped(bd2 698 if (buffer_escaped(bd2->bd_bh)) {
692 void *p; !! 699 void *kaddr;
693 <<
694 page = mempool 700 page = mempool_alloc(gfs2_page_pool, GFP_NOIO);
695 p = page_addre !! 701 ptr = page_address(page);
696 memcpy_from_pa !! 702 kaddr = kmap_atomic(bd2->bd_bh->b_page);
697 *(__be32 *)p = !! 703 memcpy(ptr, kaddr + bh_offset(bd2->bd_bh),
>> 704 bd2->bd_bh->b_size);
>> 705 kunmap_atomic(kaddr);
>> 706 *(__be32 *)ptr = 0;
698 clear_buffer_e 707 clear_buffer_escaped(bd2->bd_bh);
699 unlock_buffer( 708 unlock_buffer(bd2->bd_bh);
700 brelse(bd2->bd 709 brelse(bd2->bd_bh);
701 gfs2_log_write 710 gfs2_log_write_page(sdp, page);
702 } else { 711 } else {
703 gfs2_log_write 712 gfs2_log_write_bh(sdp, bd2->bd_bh);
704 } 713 }
705 gfs2_log_lock(sdp); 714 gfs2_log_lock(sdp);
706 if (++n >= num) 715 if (++n >= num)
707 break; 716 break;
708 } 717 }
709 718
710 BUG_ON(total < num); 719 BUG_ON(total < num);
711 total -= num; 720 total -= num;
712 } 721 }
713 gfs2_log_unlock(sdp); 722 gfs2_log_unlock(sdp);
714 } 723 }
715 724
716 static void buf_lo_before_commit(struct gfs2_s 725 static void buf_lo_before_commit(struct gfs2_sbd *sdp, struct gfs2_trans *tr)
717 { 726 {
718 unsigned int limit = buf_limit(sdp); / 727 unsigned int limit = buf_limit(sdp); /* 503 for 4k blocks */
719 unsigned int nbuf; 728 unsigned int nbuf;
720 if (tr == NULL) 729 if (tr == NULL)
721 return; 730 return;
722 nbuf = tr->tr_num_buf_new - tr->tr_num 731 nbuf = tr->tr_num_buf_new - tr->tr_num_buf_rm;
723 gfs2_before_commit(sdp, limit, nbuf, & 732 gfs2_before_commit(sdp, limit, nbuf, &tr->tr_buf, 0);
724 } 733 }
725 734
726 static void buf_lo_after_commit(struct gfs2_sb 735 static void buf_lo_after_commit(struct gfs2_sbd *sdp, struct gfs2_trans *tr)
727 { 736 {
728 struct list_head *head; 737 struct list_head *head;
729 struct gfs2_bufdata *bd; 738 struct gfs2_bufdata *bd;
730 739
731 if (tr == NULL) 740 if (tr == NULL)
732 return; 741 return;
733 742
734 head = &tr->tr_buf; 743 head = &tr->tr_buf;
735 while (!list_empty(head)) { 744 while (!list_empty(head)) {
736 bd = list_first_entry(head, st 745 bd = list_first_entry(head, struct gfs2_bufdata, bd_list);
737 list_del_init(&bd->bd_list); 746 list_del_init(&bd->bd_list);
738 gfs2_unpin(sdp, bd->bd_bh, tr) 747 gfs2_unpin(sdp, bd->bd_bh, tr);
739 } 748 }
740 } 749 }
741 750
742 static void buf_lo_before_scan(struct gfs2_jde 751 static void buf_lo_before_scan(struct gfs2_jdesc *jd,
743 struct gfs2_log 752 struct gfs2_log_header_host *head, int pass)
744 { 753 {
745 if (pass != 0) 754 if (pass != 0)
746 return; 755 return;
747 756
748 jd->jd_found_blocks = 0; 757 jd->jd_found_blocks = 0;
749 jd->jd_replayed_blocks = 0; 758 jd->jd_replayed_blocks = 0;
750 } 759 }
751 760
752 #define obsolete_rgrp_replay \ <<
753 "Replaying 0x%llx from jid=%d/0x%llx but we al <<
754 #define obsolete_rgrp_replay2 \ <<
755 "busy:%d, pinned:%d rg_gen:0x%llx, j_gen:0x%ll <<
756 <<
757 static void obsolete_rgrp(struct gfs2_jdesc *j <<
758 u64 blkno) <<
759 { <<
760 struct gfs2_sbd *sdp = GFS2_SB(jd->jd_ <<
761 struct gfs2_rgrpd *rgd; <<
762 struct gfs2_rgrp *jrgd = (struct gfs2_ <<
763 <<
764 rgd = gfs2_blk2rgrpd(sdp, blkno, false <<
765 if (rgd && rgd->rd_addr == blkno && <<
766 rgd->rd_bits && rgd->rd_bits->bi_b <<
767 fs_info(sdp, obsolete_rgrp_rep <<
768 jd->jd_jid, bh_log->b_ <<
769 fs_info(sdp, obsolete_rgrp_rep <<
770 buffer_busy(rgd->rd_bi <<
771 buffer_pinned(rgd->rd_ <<
772 rgd->rd_igeneration, <<
773 be64_to_cpu(jrgd->rg_i <<
774 gfs2_dump_glock(NULL, rgd->rd_ <<
775 } <<
776 } <<
777 <<
778 static int buf_lo_scan_elements(struct gfs2_jd 761 static int buf_lo_scan_elements(struct gfs2_jdesc *jd, u32 start,
779 struct gfs2_lo 762 struct gfs2_log_descriptor *ld, __be64 *ptr,
780 int pass) 763 int pass)
781 { 764 {
782 struct gfs2_inode *ip = GFS2_I(jd->jd_ 765 struct gfs2_inode *ip = GFS2_I(jd->jd_inode);
783 struct gfs2_sbd *sdp = GFS2_SB(jd->jd_ 766 struct gfs2_sbd *sdp = GFS2_SB(jd->jd_inode);
784 struct gfs2_glock *gl = ip->i_gl; 767 struct gfs2_glock *gl = ip->i_gl;
785 unsigned int blks = be32_to_cpu(ld->ld 768 unsigned int blks = be32_to_cpu(ld->ld_data1);
786 struct buffer_head *bh_log, *bh_ip; 769 struct buffer_head *bh_log, *bh_ip;
787 u64 blkno; 770 u64 blkno;
788 int error = 0; 771 int error = 0;
789 772
790 if (pass != 1 || be32_to_cpu(ld->ld_ty 773 if (pass != 1 || be32_to_cpu(ld->ld_type) != GFS2_LOG_DESC_METADATA)
791 return 0; 774 return 0;
792 775
793 gfs2_replay_incr_blk(jd, &start); 776 gfs2_replay_incr_blk(jd, &start);
794 777
795 for (; blks; gfs2_replay_incr_blk(jd, 778 for (; blks; gfs2_replay_incr_blk(jd, &start), blks--) {
796 blkno = be64_to_cpu(*ptr++); 779 blkno = be64_to_cpu(*ptr++);
797 780
798 jd->jd_found_blocks++; 781 jd->jd_found_blocks++;
799 782
800 if (gfs2_revoke_check(jd, blkn 783 if (gfs2_revoke_check(jd, blkno, start))
801 continue; 784 continue;
802 785
803 error = gfs2_replay_read_block 786 error = gfs2_replay_read_block(jd, start, &bh_log);
804 if (error) 787 if (error)
805 return error; 788 return error;
806 789
807 bh_ip = gfs2_meta_new(gl, blkn 790 bh_ip = gfs2_meta_new(gl, blkno);
808 memcpy(bh_ip->b_data, bh_log-> 791 memcpy(bh_ip->b_data, bh_log->b_data, bh_log->b_size);
809 792
810 if (gfs2_meta_check(sdp, bh_ip 793 if (gfs2_meta_check(sdp, bh_ip))
811 error = -EIO; 794 error = -EIO;
812 else { 795 else {
813 struct gfs2_meta_heade 796 struct gfs2_meta_header *mh =
814 (struct gfs2_m 797 (struct gfs2_meta_header *)bh_ip->b_data;
815 798
816 if (mh->mh_type == cpu !! 799 if (mh->mh_type == cpu_to_be32(GFS2_METATYPE_RG)) {
817 obsolete_rgrp( !! 800 struct gfs2_rgrpd *rgd;
818 801
>> 802 rgd = gfs2_blk2rgrpd(sdp, blkno, false);
>> 803 if (rgd && rgd->rd_addr == blkno &&
>> 804 rgd->rd_bits && rgd->rd_bits->bi_bh) {
>> 805 fs_info(sdp, "Replaying 0x%llx but we "
>> 806 "already have a bh!\n",
>> 807 (unsigned long long)blkno);
>> 808 fs_info(sdp, "busy:%d, pinned:%d\n",
>> 809 buffer_busy(rgd->rd_bits->bi_bh) ? 1 : 0,
>> 810 buffer_pinned(rgd->rd_bits->bi_bh));
>> 811 gfs2_dump_glock(NULL, rgd->rd_gl, true);
>> 812 }
>> 813 }
819 mark_buffer_dirty(bh_i 814 mark_buffer_dirty(bh_ip);
820 } 815 }
821 brelse(bh_log); 816 brelse(bh_log);
822 brelse(bh_ip); 817 brelse(bh_ip);
823 818
824 if (error) 819 if (error)
825 break; 820 break;
826 821
827 jd->jd_replayed_blocks++; 822 jd->jd_replayed_blocks++;
828 } 823 }
829 824
830 return error; 825 return error;
831 } 826 }
832 827
833 static void buf_lo_after_scan(struct gfs2_jdes 828 static void buf_lo_after_scan(struct gfs2_jdesc *jd, int error, int pass)
834 { 829 {
835 struct gfs2_inode *ip = GFS2_I(jd->jd_ 830 struct gfs2_inode *ip = GFS2_I(jd->jd_inode);
836 struct gfs2_sbd *sdp = GFS2_SB(jd->jd_ 831 struct gfs2_sbd *sdp = GFS2_SB(jd->jd_inode);
837 832
838 if (error) { 833 if (error) {
839 gfs2_inode_metasync(ip->i_gl); 834 gfs2_inode_metasync(ip->i_gl);
840 return; 835 return;
841 } 836 }
842 if (pass != 1) 837 if (pass != 1)
843 return; 838 return;
844 839
845 gfs2_inode_metasync(ip->i_gl); 840 gfs2_inode_metasync(ip->i_gl);
846 841
847 fs_info(sdp, "jid=%u: Replayed %u of % 842 fs_info(sdp, "jid=%u: Replayed %u of %u blocks\n",
848 jd->jd_jid, jd->jd_replayed_bl 843 jd->jd_jid, jd->jd_replayed_blocks, jd->jd_found_blocks);
849 } 844 }
850 845
851 static void revoke_lo_before_commit(struct gfs 846 static void revoke_lo_before_commit(struct gfs2_sbd *sdp, struct gfs2_trans *tr)
852 { 847 {
853 struct gfs2_meta_header *mh; 848 struct gfs2_meta_header *mh;
854 unsigned int offset; 849 unsigned int offset;
855 struct list_head *head = &sdp->sd_log_ 850 struct list_head *head = &sdp->sd_log_revokes;
856 struct gfs2_bufdata *bd; 851 struct gfs2_bufdata *bd;
857 struct page *page; 852 struct page *page;
858 unsigned int length; 853 unsigned int length;
859 854
860 gfs2_flush_revokes(sdp); 855 gfs2_flush_revokes(sdp);
861 if (!sdp->sd_log_num_revoke) 856 if (!sdp->sd_log_num_revoke)
862 return; 857 return;
863 858
864 length = gfs2_struct2blk(sdp, sdp->sd_ 859 length = gfs2_struct2blk(sdp, sdp->sd_log_num_revoke);
865 page = gfs2_get_log_desc(sdp, GFS2_LOG 860 page = gfs2_get_log_desc(sdp, GFS2_LOG_DESC_REVOKE, length, sdp->sd_log_num_revoke);
866 offset = sizeof(struct gfs2_log_descri 861 offset = sizeof(struct gfs2_log_descriptor);
867 862
868 list_for_each_entry(bd, head, bd_list) 863 list_for_each_entry(bd, head, bd_list) {
869 sdp->sd_log_num_revoke--; 864 sdp->sd_log_num_revoke--;
870 865
871 if (offset + sizeof(u64) > sdp 866 if (offset + sizeof(u64) > sdp->sd_sb.sb_bsize) {
872 gfs2_log_write_page(sd 867 gfs2_log_write_page(sdp, page);
873 page = mempool_alloc(g 868 page = mempool_alloc(gfs2_page_pool, GFP_NOIO);
874 mh = page_address(page 869 mh = page_address(page);
875 clear_page(mh); 870 clear_page(mh);
876 mh->mh_magic = cpu_to_ 871 mh->mh_magic = cpu_to_be32(GFS2_MAGIC);
877 mh->mh_type = cpu_to_b 872 mh->mh_type = cpu_to_be32(GFS2_METATYPE_LB);
878 mh->mh_format = cpu_to 873 mh->mh_format = cpu_to_be32(GFS2_FORMAT_LB);
879 offset = sizeof(struct 874 offset = sizeof(struct gfs2_meta_header);
880 } 875 }
881 876
882 *(__be64 *)(page_address(page) 877 *(__be64 *)(page_address(page) + offset) = cpu_to_be64(bd->bd_blkno);
883 offset += sizeof(u64); 878 offset += sizeof(u64);
884 } 879 }
885 gfs2_assert_withdraw(sdp, !sdp->sd_log 880 gfs2_assert_withdraw(sdp, !sdp->sd_log_num_revoke);
886 881
887 gfs2_log_write_page(sdp, page); 882 gfs2_log_write_page(sdp, page);
888 } 883 }
889 884
890 void gfs2_drain_revokes(struct gfs2_sbd *sdp) 885 void gfs2_drain_revokes(struct gfs2_sbd *sdp)
891 { 886 {
892 struct list_head *head = &sdp->sd_log_ 887 struct list_head *head = &sdp->sd_log_revokes;
893 struct gfs2_bufdata *bd; 888 struct gfs2_bufdata *bd;
894 struct gfs2_glock *gl; 889 struct gfs2_glock *gl;
895 890
896 while (!list_empty(head)) { 891 while (!list_empty(head)) {
897 bd = list_first_entry(head, st 892 bd = list_first_entry(head, struct gfs2_bufdata, bd_list);
898 list_del_init(&bd->bd_list); 893 list_del_init(&bd->bd_list);
899 gl = bd->bd_gl; 894 gl = bd->bd_gl;
900 gfs2_glock_remove_revoke(gl); 895 gfs2_glock_remove_revoke(gl);
901 kmem_cache_free(gfs2_bufdata_c 896 kmem_cache_free(gfs2_bufdata_cachep, bd);
902 } 897 }
903 } 898 }
904 899
905 static void revoke_lo_after_commit(struct gfs2 900 static void revoke_lo_after_commit(struct gfs2_sbd *sdp, struct gfs2_trans *tr)
906 { 901 {
907 gfs2_drain_revokes(sdp); 902 gfs2_drain_revokes(sdp);
908 } 903 }
909 904
910 static void revoke_lo_before_scan(struct gfs2_ 905 static void revoke_lo_before_scan(struct gfs2_jdesc *jd,
911 struct gfs2_ 906 struct gfs2_log_header_host *head, int pass)
912 { 907 {
913 if (pass != 0) 908 if (pass != 0)
914 return; 909 return;
915 910
916 jd->jd_found_revokes = 0; 911 jd->jd_found_revokes = 0;
917 jd->jd_replay_tail = head->lh_tail; 912 jd->jd_replay_tail = head->lh_tail;
918 } 913 }
919 914
920 static int revoke_lo_scan_elements(struct gfs2 915 static int revoke_lo_scan_elements(struct gfs2_jdesc *jd, u32 start,
921 struct gfs2 916 struct gfs2_log_descriptor *ld, __be64 *ptr,
922 int pass) 917 int pass)
923 { 918 {
924 struct gfs2_sbd *sdp = GFS2_SB(jd->jd_ 919 struct gfs2_sbd *sdp = GFS2_SB(jd->jd_inode);
925 unsigned int blks = be32_to_cpu(ld->ld 920 unsigned int blks = be32_to_cpu(ld->ld_length);
926 unsigned int revokes = be32_to_cpu(ld- 921 unsigned int revokes = be32_to_cpu(ld->ld_data1);
927 struct buffer_head *bh; 922 struct buffer_head *bh;
928 unsigned int offset; 923 unsigned int offset;
929 u64 blkno; 924 u64 blkno;
930 int first = 1; 925 int first = 1;
931 int error; 926 int error;
932 927
933 if (pass != 0 || be32_to_cpu(ld->ld_ty 928 if (pass != 0 || be32_to_cpu(ld->ld_type) != GFS2_LOG_DESC_REVOKE)
934 return 0; 929 return 0;
935 930
936 offset = sizeof(struct gfs2_log_descri 931 offset = sizeof(struct gfs2_log_descriptor);
937 932
938 for (; blks; gfs2_replay_incr_blk(jd, 933 for (; blks; gfs2_replay_incr_blk(jd, &start), blks--) {
939 error = gfs2_replay_read_block 934 error = gfs2_replay_read_block(jd, start, &bh);
940 if (error) 935 if (error)
941 return error; 936 return error;
942 937
943 if (!first) 938 if (!first)
944 gfs2_metatype_check(sd 939 gfs2_metatype_check(sdp, bh, GFS2_METATYPE_LB);
945 940
946 while (offset + sizeof(u64) <= 941 while (offset + sizeof(u64) <= sdp->sd_sb.sb_bsize) {
947 blkno = be64_to_cpu(*( 942 blkno = be64_to_cpu(*(__be64 *)(bh->b_data + offset));
948 943
949 error = gfs2_revoke_ad 944 error = gfs2_revoke_add(jd, blkno, start);
950 if (error < 0) { 945 if (error < 0) {
951 brelse(bh); 946 brelse(bh);
952 return error; 947 return error;
953 } 948 }
954 else if (error) 949 else if (error)
955 jd->jd_found_r 950 jd->jd_found_revokes++;
956 951
957 if (!--revokes) 952 if (!--revokes)
958 break; 953 break;
959 offset += sizeof(u64); 954 offset += sizeof(u64);
960 } 955 }
961 956
962 brelse(bh); 957 brelse(bh);
963 offset = sizeof(struct gfs2_me 958 offset = sizeof(struct gfs2_meta_header);
964 first = 0; 959 first = 0;
965 } 960 }
966 961
967 return 0; 962 return 0;
968 } 963 }
969 964
970 static void revoke_lo_after_scan(struct gfs2_j 965 static void revoke_lo_after_scan(struct gfs2_jdesc *jd, int error, int pass)
971 { 966 {
972 struct gfs2_sbd *sdp = GFS2_SB(jd->jd_ 967 struct gfs2_sbd *sdp = GFS2_SB(jd->jd_inode);
973 968
974 if (error) { 969 if (error) {
975 gfs2_revoke_clean(jd); 970 gfs2_revoke_clean(jd);
976 return; 971 return;
977 } 972 }
978 if (pass != 1) 973 if (pass != 1)
979 return; 974 return;
980 975
981 fs_info(sdp, "jid=%u: Found %u revoke 976 fs_info(sdp, "jid=%u: Found %u revoke tags\n",
982 jd->jd_jid, jd->jd_found_revok 977 jd->jd_jid, jd->jd_found_revokes);
983 978
984 gfs2_revoke_clean(jd); 979 gfs2_revoke_clean(jd);
985 } 980 }
986 981
987 /** 982 /**
988 * databuf_lo_before_commit - Scan the data bu 983 * databuf_lo_before_commit - Scan the data buffers, writing as we go
989 * @sdp: The filesystem !! 984 *
990 * @tr: The system transaction being flushed <<
991 */ 985 */
992 986
993 static void databuf_lo_before_commit(struct gf 987 static void databuf_lo_before_commit(struct gfs2_sbd *sdp, struct gfs2_trans *tr)
994 { 988 {
995 unsigned int limit = databuf_limit(sdp 989 unsigned int limit = databuf_limit(sdp);
996 unsigned int nbuf; 990 unsigned int nbuf;
997 if (tr == NULL) 991 if (tr == NULL)
998 return; 992 return;
999 nbuf = tr->tr_num_databuf_new - tr->tr 993 nbuf = tr->tr_num_databuf_new - tr->tr_num_databuf_rm;
1000 gfs2_before_commit(sdp, limit, nbuf, 994 gfs2_before_commit(sdp, limit, nbuf, &tr->tr_databuf, 1);
1001 } 995 }
1002 996
1003 static int databuf_lo_scan_elements(struct gf 997 static int databuf_lo_scan_elements(struct gfs2_jdesc *jd, u32 start,
1004 struct gf 998 struct gfs2_log_descriptor *ld,
1005 __be64 *p 999 __be64 *ptr, int pass)
1006 { 1000 {
1007 struct gfs2_inode *ip = GFS2_I(jd->jd 1001 struct gfs2_inode *ip = GFS2_I(jd->jd_inode);
1008 struct gfs2_glock *gl = ip->i_gl; 1002 struct gfs2_glock *gl = ip->i_gl;
1009 unsigned int blks = be32_to_cpu(ld->l 1003 unsigned int blks = be32_to_cpu(ld->ld_data1);
1010 struct buffer_head *bh_log, *bh_ip; 1004 struct buffer_head *bh_log, *bh_ip;
1011 u64 blkno; 1005 u64 blkno;
1012 u64 esc; 1006 u64 esc;
1013 int error = 0; 1007 int error = 0;
1014 1008
1015 if (pass != 1 || be32_to_cpu(ld->ld_t 1009 if (pass != 1 || be32_to_cpu(ld->ld_type) != GFS2_LOG_DESC_JDATA)
1016 return 0; 1010 return 0;
1017 1011
1018 gfs2_replay_incr_blk(jd, &start); 1012 gfs2_replay_incr_blk(jd, &start);
1019 for (; blks; gfs2_replay_incr_blk(jd, 1013 for (; blks; gfs2_replay_incr_blk(jd, &start), blks--) {
1020 blkno = be64_to_cpu(*ptr++); 1014 blkno = be64_to_cpu(*ptr++);
1021 esc = be64_to_cpu(*ptr++); 1015 esc = be64_to_cpu(*ptr++);
1022 1016
1023 jd->jd_found_blocks++; 1017 jd->jd_found_blocks++;
1024 1018
1025 if (gfs2_revoke_check(jd, blk 1019 if (gfs2_revoke_check(jd, blkno, start))
1026 continue; 1020 continue;
1027 1021
1028 error = gfs2_replay_read_bloc 1022 error = gfs2_replay_read_block(jd, start, &bh_log);
1029 if (error) 1023 if (error)
1030 return error; 1024 return error;
1031 1025
1032 bh_ip = gfs2_meta_new(gl, blk 1026 bh_ip = gfs2_meta_new(gl, blkno);
1033 memcpy(bh_ip->b_data, bh_log- 1027 memcpy(bh_ip->b_data, bh_log->b_data, bh_log->b_size);
1034 1028
1035 /* Unescape */ 1029 /* Unescape */
1036 if (esc) { 1030 if (esc) {
1037 __be32 *eptr = (__be3 1031 __be32 *eptr = (__be32 *)bh_ip->b_data;
1038 *eptr = cpu_to_be32(G 1032 *eptr = cpu_to_be32(GFS2_MAGIC);
1039 } 1033 }
1040 mark_buffer_dirty(bh_ip); 1034 mark_buffer_dirty(bh_ip);
1041 1035
1042 brelse(bh_log); 1036 brelse(bh_log);
1043 brelse(bh_ip); 1037 brelse(bh_ip);
1044 1038
1045 jd->jd_replayed_blocks++; 1039 jd->jd_replayed_blocks++;
1046 } 1040 }
1047 1041
1048 return error; 1042 return error;
1049 } 1043 }
1050 1044
1051 /* FIXME: sort out accounting for log blocks 1045 /* FIXME: sort out accounting for log blocks etc. */
1052 1046
1053 static void databuf_lo_after_scan(struct gfs2 1047 static void databuf_lo_after_scan(struct gfs2_jdesc *jd, int error, int pass)
1054 { 1048 {
1055 struct gfs2_inode *ip = GFS2_I(jd->jd 1049 struct gfs2_inode *ip = GFS2_I(jd->jd_inode);
1056 struct gfs2_sbd *sdp = GFS2_SB(jd->jd 1050 struct gfs2_sbd *sdp = GFS2_SB(jd->jd_inode);
1057 1051
1058 if (error) { 1052 if (error) {
1059 gfs2_inode_metasync(ip->i_gl) 1053 gfs2_inode_metasync(ip->i_gl);
1060 return; 1054 return;
1061 } 1055 }
1062 if (pass != 1) 1056 if (pass != 1)
1063 return; 1057 return;
1064 1058
1065 /* data sync? */ 1059 /* data sync? */
1066 gfs2_inode_metasync(ip->i_gl); 1060 gfs2_inode_metasync(ip->i_gl);
1067 1061
1068 fs_info(sdp, "jid=%u: Replayed %u of 1062 fs_info(sdp, "jid=%u: Replayed %u of %u data blocks\n",
1069 jd->jd_jid, jd->jd_replayed_b 1063 jd->jd_jid, jd->jd_replayed_blocks, jd->jd_found_blocks);
1070 } 1064 }
1071 1065
1072 static void databuf_lo_after_commit(struct gf 1066 static void databuf_lo_after_commit(struct gfs2_sbd *sdp, struct gfs2_trans *tr)
1073 { 1067 {
1074 struct list_head *head; 1068 struct list_head *head;
1075 struct gfs2_bufdata *bd; 1069 struct gfs2_bufdata *bd;
1076 1070
1077 if (tr == NULL) 1071 if (tr == NULL)
1078 return; 1072 return;
1079 1073
1080 head = &tr->tr_databuf; 1074 head = &tr->tr_databuf;
1081 while (!list_empty(head)) { 1075 while (!list_empty(head)) {
1082 bd = list_first_entry(head, s 1076 bd = list_first_entry(head, struct gfs2_bufdata, bd_list);
1083 list_del_init(&bd->bd_list); 1077 list_del_init(&bd->bd_list);
1084 gfs2_unpin(sdp, bd->bd_bh, tr 1078 gfs2_unpin(sdp, bd->bd_bh, tr);
1085 } 1079 }
1086 } 1080 }
1087 1081
1088 1082
1089 static const struct gfs2_log_operations gfs2_ 1083 static const struct gfs2_log_operations gfs2_buf_lops = {
1090 .lo_before_commit = buf_lo_before_com 1084 .lo_before_commit = buf_lo_before_commit,
1091 .lo_after_commit = buf_lo_after_commi 1085 .lo_after_commit = buf_lo_after_commit,
1092 .lo_before_scan = buf_lo_before_scan, 1086 .lo_before_scan = buf_lo_before_scan,
1093 .lo_scan_elements = buf_lo_scan_eleme 1087 .lo_scan_elements = buf_lo_scan_elements,
1094 .lo_after_scan = buf_lo_after_scan, 1088 .lo_after_scan = buf_lo_after_scan,
1095 .lo_name = "buf", 1089 .lo_name = "buf",
1096 }; 1090 };
1097 1091
1098 static const struct gfs2_log_operations gfs2_ 1092 static const struct gfs2_log_operations gfs2_revoke_lops = {
1099 .lo_before_commit = revoke_lo_before_ 1093 .lo_before_commit = revoke_lo_before_commit,
1100 .lo_after_commit = revoke_lo_after_co 1094 .lo_after_commit = revoke_lo_after_commit,
1101 .lo_before_scan = revoke_lo_before_sc 1095 .lo_before_scan = revoke_lo_before_scan,
1102 .lo_scan_elements = revoke_lo_scan_el 1096 .lo_scan_elements = revoke_lo_scan_elements,
1103 .lo_after_scan = revoke_lo_after_scan 1097 .lo_after_scan = revoke_lo_after_scan,
1104 .lo_name = "revoke", 1098 .lo_name = "revoke",
1105 }; 1099 };
1106 1100
1107 static const struct gfs2_log_operations gfs2_ 1101 static const struct gfs2_log_operations gfs2_databuf_lops = {
1108 .lo_before_commit = databuf_lo_before 1102 .lo_before_commit = databuf_lo_before_commit,
1109 .lo_after_commit = databuf_lo_after_c 1103 .lo_after_commit = databuf_lo_after_commit,
1110 .lo_scan_elements = databuf_lo_scan_e 1104 .lo_scan_elements = databuf_lo_scan_elements,
1111 .lo_after_scan = databuf_lo_after_sca 1105 .lo_after_scan = databuf_lo_after_scan,
1112 .lo_name = "databuf", 1106 .lo_name = "databuf",
1113 }; 1107 };
1114 1108
1115 const struct gfs2_log_operations *gfs2_log_op 1109 const struct gfs2_log_operations *gfs2_log_ops[] = {
1116 &gfs2_databuf_lops, 1110 &gfs2_databuf_lops,
1117 &gfs2_buf_lops, 1111 &gfs2_buf_lops,
1118 &gfs2_revoke_lops, 1112 &gfs2_revoke_lops,
1119 NULL, 1113 NULL,
1120 }; 1114 };
1121 1115
1122 1116
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