forked from ~ljy/RK356X_SDK_RELEASE
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hc
2023-12-11 d2ccde1c8e90d38cee87a1b0309ad2827f3fd30d 
 kernel/fs/btrfs/check-integrity.c
....@@ -77,13 +77,12 @@
7777 
7878 #include <linux/sched.h>
7979 #include <linux/slab.h>
80
-#include <linux/buffer_head.h>
8180 #include <linux/mutex.h>
8281 #include <linux/genhd.h>
8382 #include <linux/blkdev.h>
8483 #include <linux/mm.h>
8584 #include <linux/string.h>
86
-#include <linux/crc32c.h>
85
+#include <crypto/hash.h>
8786 #include "ctree.h"
8887 #include "disk-io.h"
8988 #include "transaction.h"
....@@ -152,11 +151,8 @@
152151 	struct list_head ref_to_list;	/* list */
153152 	struct list_head ref_from_list;	/* list */
154153 	struct btrfsic_block *next_in_same_bio;
155
-	void *orig_bio_bh_private;
156
-	union {
157
-		bio_end_io_t *bio;
158
-		bh_end_io_t *bh;
159
-	} orig_bio_bh_end_io;
154
+	void *orig_bio_private;
155
+	bio_end_io_t *orig_bio_end_io;
160156 	int submit_bio_bh_rw;
161157 	u64 flush_gen; /* only valid if !never_written */
162158 };
....@@ -325,14 +321,12 @@
325321 					  u64 dev_bytenr, char **mapped_datav,
326322 					  unsigned int num_pages,
327323 					  struct bio *bio, int *bio_is_patched,
328
-					  struct buffer_head *bh,
329324 					  int submit_bio_bh_rw);
330325 static int btrfsic_process_written_superblock(
331326 		struct btrfsic_state *state,
332327 		struct btrfsic_block *const block,
333328 		struct btrfs_super_block *const super_hdr);
334329 static void btrfsic_bio_end_io(struct bio *bp);
335
-static void btrfsic_bh_end_io(struct buffer_head *bh, int uptodate);
336330 static int btrfsic_is_block_ref_by_superblock(const struct btrfsic_state *state,
337331 					      const struct btrfsic_block *block,
338332 					      int recursion_level);
....@@ -399,8 +393,8 @@
399393 	b->never_written = 0;
400394 	b->mirror_num = 0;
401395 	b->next_in_same_bio = NULL;
402
-	b->orig_bio_bh_private = NULL;
403
-	b->orig_bio_bh_end_io.bio = NULL;
396
+	b->orig_bio_private = NULL;
397
+	b->orig_bio_end_io = NULL;
404398 	INIT_LIST_HEAD(&b->collision_resolving_node);
405399 	INIT_LIST_HEAD(&b->all_blocks_node);
406400 	INIT_LIST_HEAD(&b->ref_to_list);
....@@ -636,12 +630,9 @@
636630 	int ret = 0;
637631 	int pass;
638632 
639
-	BUG_ON(NULL == state);
640633 	selected_super = kzalloc(sizeof(*selected_super), GFP_NOFS);
641
-	if (NULL == selected_super) {
642
-		pr_info("btrfsic: error, kmalloc failed!\n");
634
+	if (!selected_super)
643635 		return -ENOMEM;
644
-	}
645636 
646637 	list_for_each_entry(device, dev_head, dev_list) {
647638 		int i;
....@@ -768,29 +759,31 @@
768759 	struct btrfs_fs_info *fs_info = state->fs_info;
769760 	struct btrfs_super_block *super_tmp;
770761 	u64 dev_bytenr;
771
-	struct buffer_head *bh;
772762 	struct btrfsic_block *superblock_tmp;
773763 	int pass;
774764 	struct block_device *const superblock_bdev = device->bdev;
765
+	struct page *page;
766
+	struct address_space *mapping = superblock_bdev->bd_inode->i_mapping;
767
+	int ret = 0;
775768 
776769 	/* super block bytenr is always the unmapped device bytenr */
777770 	dev_bytenr = btrfs_sb_offset(superblock_mirror_num);
778771 	if (dev_bytenr + BTRFS_SUPER_INFO_SIZE > device->commit_total_bytes)
779772 		return -1;
780
-	bh = __bread(superblock_bdev, dev_bytenr / BTRFS_BDEV_BLOCKSIZE,
781
-		     BTRFS_SUPER_INFO_SIZE);
782
-	if (NULL == bh)
773
+
774
+	page = read_cache_page_gfp(mapping, dev_bytenr >> PAGE_SHIFT, GFP_NOFS);
775
+	if (IS_ERR(page))
783776 		return -1;
784
-	super_tmp = (struct btrfs_super_block *)
785
-	    (bh->b_data + (dev_bytenr & (BTRFS_BDEV_BLOCKSIZE - 1)));
777
+
778
+	super_tmp = page_address(page);
786779 
787780 	if (btrfs_super_bytenr(super_tmp) != dev_bytenr ||
788781 	    btrfs_super_magic(super_tmp) != BTRFS_MAGIC ||
789782 	    memcmp(device->uuid, super_tmp->dev_item.uuid, BTRFS_UUID_SIZE) ||
790783 	    btrfs_super_nodesize(super_tmp) != state->metablock_size ||
791784 	    btrfs_super_sectorsize(super_tmp) != state->datablock_size) {
792
-		brelse(bh);
793
-		return 0;
785
+		ret = 0;
786
+		goto out;
794787 	}
795788 
796789 	superblock_tmp =
....@@ -800,9 +793,8 @@
800793 	if (NULL == superblock_tmp) {
801794 		superblock_tmp = btrfsic_block_alloc();
802795 		if (NULL == superblock_tmp) {
803
-			pr_info("btrfsic: error, kmalloc failed!\n");
804
-			brelse(bh);
805
-			return -1;
796
+			ret = -1;
797
+			goto out;
806798 		}
807799 		/* for superblock, only the dev_bytenr makes sense */
808800 		superblock_tmp->dev_bytenr = dev_bytenr;
....@@ -886,8 +878,8 @@
886878 					      mirror_num)) {
887879 				pr_info("btrfsic: btrfsic_map_block(bytenr @%llu, mirror %d) failed!\n",
888880 				       next_bytenr, mirror_num);
889
-				brelse(bh);
890
-				return -1;
881
+				ret = -1;
882
+				goto out;
891883 			}
892884 
893885 			next_block = btrfsic_block_lookup_or_add(
....@@ -896,8 +888,8 @@
896888 					mirror_num, NULL);
897889 			if (NULL == next_block) {
898890 				btrfsic_release_block_ctx(&tmp_next_block_ctx);
899
-				brelse(bh);
900
-				return -1;
891
+				ret = -1;
892
+				goto out;
901893 			}
902894 
903895 			next_block->disk_key = tmp_disk_key;
....@@ -908,16 +900,17 @@
908900 					BTRFSIC_GENERATION_UNKNOWN);
909901 			btrfsic_release_block_ctx(&tmp_next_block_ctx);
910902 			if (NULL == l) {
911
-				brelse(bh);
912
-				return -1;
903
+				ret = -1;
904
+				goto out;
913905 			}
914906 		}
915907 	}
916908 	if (state->print_mask & BTRFSIC_PRINT_MASK_INITIAL_ALL_TREES)
917909 		btrfsic_dump_tree_sub(state, superblock_tmp, 0);
918910 
919
-	brelse(bh);
920
-	return 0;
911
+out:
912
+	put_page(page);
913
+	return ret;
921914 }
922915 
923916 static struct btrfsic_stack_frame *btrfsic_stack_frame_alloc(void)
....@@ -925,9 +918,7 @@
925918 	struct btrfsic_stack_frame *sf;
926919 
927920 	sf = kzalloc(sizeof(*sf), GFP_NOFS);
928
-	if (NULL == sf)
929
-		pr_info("btrfsic: alloc memory failed!\n");
930
-	else
921
+	if (sf)
931922 		sf->magic = BTRFSIC_BLOCK_STACK_FRAME_MAGIC_NUMBER;
932923 	return sf;
933924 }
....@@ -939,7 +930,7 @@
939930 	kfree(sf);
940931 }
941932 
942
-static int btrfsic_process_metablock(
933
+static noinline_for_stack int btrfsic_process_metablock(
943934 		struct btrfsic_state *state,
944935 		struct btrfsic_block *const first_block,
945936 		struct btrfsic_block_data_ctx *const first_block_ctx,
....@@ -1201,24 +1192,24 @@
12011192 	void *dstv, u32 offset, size_t len)
12021193 {
12031194 	size_t cur;
1204
-	size_t offset_in_page;
1195
+	size_t pgoff;
12051196 	char *kaddr;
12061197 	char *dst = (char *)dstv;
1207
-	size_t start_offset = block_ctx->start & ((u64)PAGE_SIZE - 1);
1198
+	size_t start_offset = offset_in_page(block_ctx->start);
12081199 	unsigned long i = (start_offset + offset) >> PAGE_SHIFT;
12091200 
12101201 	WARN_ON(offset + len > block_ctx->len);
1211
-	offset_in_page = (start_offset + offset) & (PAGE_SIZE - 1);
1202
+	pgoff = offset_in_page(start_offset + offset);
12121203 
12131204 	while (len > 0) {
1214
-		cur = min(len, ((size_t)PAGE_SIZE - offset_in_page));
1205
+		cur = min(len, ((size_t)PAGE_SIZE - pgoff));
12151206 		BUG_ON(i >= DIV_ROUND_UP(block_ctx->len, PAGE_SIZE));
12161207 		kaddr = block_ctx->datav[i];
1217
-		memcpy(dst, kaddr + offset_in_page, cur);
1208
+		memcpy(dst, kaddr + pgoff, cur);
12181209 
12191210 		dst += cur;
12201211 		len -= cur;
1221
-		offset_in_page = 0;
1212
+		pgoff = 0;
12221213 		i++;
12231214 	}
12241215 }
....@@ -1317,7 +1308,6 @@
13171308 	if (NULL == l) {
13181309 		l = btrfsic_block_link_alloc();
13191310 		if (NULL == l) {
1320
-			pr_info("btrfsic: error, kmalloc failed!\n");
13211311 			btrfsic_release_block_ctx(next_block_ctx);
13221312 			*next_blockp = NULL;
13231313 			return -1;
....@@ -1474,7 +1464,6 @@
14741464 					mirror_num,
14751465 					&block_was_created);
14761466 			if (NULL == next_block) {
1477
-				pr_info("btrfsic: error, kmalloc failed!\n");
14781467 				btrfsic_release_block_ctx(&next_block_ctx);
14791468 				return -1;
14801469 			}
....@@ -1593,13 +1582,14 @@
15931582 {
15941583 	unsigned int num_pages;
15951584 	unsigned int i;
1585
+	size_t size;
15961586 	u64 dev_bytenr;
15971587 	int ret;
15981588 
15991589 	BUG_ON(block_ctx->datav);
16001590 	BUG_ON(block_ctx->pagev);
16011591 	BUG_ON(block_ctx->mem_to_free);
1602
-	if (block_ctx->dev_bytenr & ((u64)PAGE_SIZE - 1)) {
1592
+	if (!PAGE_ALIGNED(block_ctx->dev_bytenr)) {
16031593 		pr_info("btrfsic: read_block() with unaligned bytenr %llu\n",
16041594 		       block_ctx->dev_bytenr);
16051595 		return -1;
....@@ -1607,9 +1597,8 @@
16071597 
16081598 	num_pages = (block_ctx->len + (u64)PAGE_SIZE - 1) >>
16091599 		    PAGE_SHIFT;
1610
-	block_ctx->mem_to_free = kcalloc(sizeof(*block_ctx->datav) +
1611
-						sizeof(*block_ctx->pagev),
1612
-					 num_pages, GFP_NOFS);
1600
+	size = sizeof(*block_ctx->datav) + sizeof(*block_ctx->pagev);
1601
+	block_ctx->mem_to_free = kcalloc(num_pages, size, GFP_NOFS);
16131602 	if (!block_ctx->mem_to_free)
16141603 		return -ENOMEM;
16151604 	block_ctx->datav = block_ctx->mem_to_free;
....@@ -1705,13 +1694,14 @@
17051694  * Test whether the disk block contains a tree block (leaf or node)
17061695  * (note that this test fails for the super block)
17071696  */
1708
-static int btrfsic_test_for_metadata(struct btrfsic_state *state,
1709
-				     char **datav, unsigned int num_pages)
1697
+static noinline_for_stack int btrfsic_test_for_metadata(
1698
+		struct btrfsic_state *state,
1699
+		char **datav, unsigned int num_pages)
17101700 {
17111701 	struct btrfs_fs_info *fs_info = state->fs_info;
1702
+	SHASH_DESC_ON_STACK(shash, fs_info->csum_shash);
17121703 	struct btrfs_header *h;
17131704 	u8 csum[BTRFS_CSUM_SIZE];
1714
-	u32 crc = ~(u32)0;
17151705 	unsigned int i;
17161706 
17171707 	if (num_pages * PAGE_SIZE < state->metablock_size)
....@@ -1719,17 +1709,20 @@
17191709 	num_pages = state->metablock_size >> PAGE_SHIFT;
17201710 	h = (struct btrfs_header *)datav[0];
17211711 
1722
-	if (memcmp(h->fsid, fs_info->fsid, BTRFS_FSID_SIZE))
1712
+	if (memcmp(h->fsid, fs_info->fs_devices->fsid, BTRFS_FSID_SIZE))
17231713 		return 1;
1714
+
1715
+	shash->tfm = fs_info->csum_shash;
1716
+	crypto_shash_init(shash);
17241717 
17251718 	for (i = 0; i < num_pages; i++) {
17261719 		u8 *data = i ? datav[i] : (datav[i] + BTRFS_CSUM_SIZE);
17271720 		size_t sublen = i ? PAGE_SIZE :
17281721 				    (PAGE_SIZE - BTRFS_CSUM_SIZE);
17291722 
1730
-		crc = crc32c(crc, data, sublen);
1723
+		crypto_shash_update(shash, data, sublen);
17311724 	}
1732
-	btrfs_csum_final(crc, csum);
1725
+	crypto_shash_final(shash, csum);
17331726 	if (memcmp(csum, h->csum, state->csum_size))
17341727 		return 1;
17351728 
....@@ -1740,7 +1733,6 @@
17401733 					  u64 dev_bytenr, char **mapped_datav,
17411734 					  unsigned int num_pages,
17421735 					  struct bio *bio, int *bio_is_patched,
1743
-					  struct buffer_head *bh,
17441736 					  int submit_bio_bh_rw)
17451737 {
17461738 	int is_metadata;
....@@ -1777,7 +1769,7 @@
17771769 				return;
17781770 			}
17791771 			is_metadata = 1;
1780
-			BUG_ON(BTRFS_SUPER_INFO_SIZE & (PAGE_SIZE - 1));
1772
+			BUG_ON(!PAGE_ALIGNED(BTRFS_SUPER_INFO_SIZE));
17811773 			processed_len = BTRFS_SUPER_INFO_SIZE;
17821774 			if (state->print_mask &
17831775 			    BTRFSIC_PRINT_MASK_TREE_BEFORE_SB_WRITE) {
....@@ -1899,9 +1891,9 @@
18991891 				block->is_iodone = 0;
19001892 				BUG_ON(NULL == bio_is_patched);
19011893 				if (!*bio_is_patched) {
1902
-					block->orig_bio_bh_private =
1894
+					block->orig_bio_private =
19031895 					    bio->bi_private;
1904
-					block->orig_bio_bh_end_io.bio =
1896
+					block->orig_bio_end_io =
19051897 					    bio->bi_end_io;
19061898 					block->next_in_same_bio = NULL;
19071899 					bio->bi_private = block;
....@@ -1913,25 +1905,17 @@
19131905 					    bio->bi_private;
19141906 
19151907 					BUG_ON(NULL == chained_block);
1916
-					block->orig_bio_bh_private =
1917
-					    chained_block->orig_bio_bh_private;
1918
-					block->orig_bio_bh_end_io.bio =
1919
-					    chained_block->orig_bio_bh_end_io.
1920
-					    bio;
1908
+					block->orig_bio_private =
1909
+					    chained_block->orig_bio_private;
1910
+					block->orig_bio_end_io =
1911
+					    chained_block->orig_bio_end_io;
19211912 					block->next_in_same_bio = chained_block;
19221913 					bio->bi_private = block;
19231914 				}
1924
-			} else if (NULL != bh) {
1925
-				block->is_iodone = 0;
1926
-				block->orig_bio_bh_private = bh->b_private;
1927
-				block->orig_bio_bh_end_io.bh = bh->b_end_io;
1928
-				block->next_in_same_bio = NULL;
1929
-				bh->b_private = block;
1930
-				bh->b_end_io = btrfsic_bh_end_io;
19311915 			} else {
19321916 				block->is_iodone = 1;
1933
-				block->orig_bio_bh_private = NULL;
1934
-				block->orig_bio_bh_end_io.bio = NULL;
1917
+				block->orig_bio_private = NULL;
1918
+				block->orig_bio_end_io = NULL;
19351919 				block->next_in_same_bio = NULL;
19361920 			}
19371921 		}
....@@ -2022,7 +2006,6 @@
20222006 
20232007 		block = btrfsic_block_alloc();
20242008 		if (NULL == block) {
2025
-			pr_info("btrfsic: error, kmalloc failed!\n");
20262009 			btrfsic_release_block_ctx(&block_ctx);
20272010 			goto continue_loop;
20282011 		}
....@@ -2039,8 +2022,8 @@
20392022 			block->is_iodone = 0;
20402023 			BUG_ON(NULL == bio_is_patched);
20412024 			if (!*bio_is_patched) {
2042
-				block->orig_bio_bh_private = bio->bi_private;
2043
-				block->orig_bio_bh_end_io.bio = bio->bi_end_io;
2025
+				block->orig_bio_private = bio->bi_private;
2026
+				block->orig_bio_end_io = bio->bi_end_io;
20442027 				block->next_in_same_bio = NULL;
20452028 				bio->bi_private = block;
20462029 				bio->bi_end_io = btrfsic_bio_end_io;
....@@ -2051,24 +2034,17 @@
20512034 				    bio->bi_private;
20522035 
20532036 				BUG_ON(NULL == chained_block);
2054
-				block->orig_bio_bh_private =
2055
-				    chained_block->orig_bio_bh_private;
2056
-				block->orig_bio_bh_end_io.bio =
2057
-				    chained_block->orig_bio_bh_end_io.bio;
2037
+				block->orig_bio_private =
2038
+				    chained_block->orig_bio_private;
2039
+				block->orig_bio_end_io =
2040
+				    chained_block->orig_bio_end_io;
20582041 				block->next_in_same_bio = chained_block;
20592042 				bio->bi_private = block;
20602043 			}
2061
-		} else if (NULL != bh) {
2062
-			block->is_iodone = 0;
2063
-			block->orig_bio_bh_private = bh->b_private;
2064
-			block->orig_bio_bh_end_io.bh = bh->b_end_io;
2065
-			block->next_in_same_bio = NULL;
2066
-			bh->b_private = block;
2067
-			bh->b_end_io = btrfsic_bh_end_io;
20682044 		} else {
20692045 			block->is_iodone = 1;
2070
-			block->orig_bio_bh_private = NULL;
2071
-			block->orig_bio_bh_end_io.bio = NULL;
2046
+			block->orig_bio_private = NULL;
2047
+			block->orig_bio_end_io = NULL;
20722048 			block->next_in_same_bio = NULL;
20732049 		}
20742050 		if (state->print_mask & BTRFSIC_PRINT_MASK_VERBOSE)
....@@ -2109,8 +2085,8 @@
21092085 		iodone_w_error = 1;
21102086 
21112087 	BUG_ON(NULL == block);
2112
-	bp->bi_private = block->orig_bio_bh_private;
2113
-	bp->bi_end_io = block->orig_bio_bh_end_io.bio;
2088
+	bp->bi_private = block->orig_bio_private;
2089
+	bp->bi_end_io = block->orig_bio_end_io;
21142090 
21152091 	do {
21162092 		struct btrfsic_block *next_block;
....@@ -2141,38 +2117,6 @@
21412117 	} while (NULL != block);
21422118 
21432119 	bp->bi_end_io(bp);
2144
-}
2145
-
2146
-static void btrfsic_bh_end_io(struct buffer_head *bh, int uptodate)
2147
-{
2148
-	struct btrfsic_block *block = (struct btrfsic_block *)bh->b_private;
2149
-	int iodone_w_error = !uptodate;
2150
-	struct btrfsic_dev_state *dev_state;
2151
-
2152
-	BUG_ON(NULL == block);
2153
-	dev_state = block->dev_state;
2154
-	if ((dev_state->state->print_mask & BTRFSIC_PRINT_MASK_END_IO_BIO_BH))
2155
-		pr_info("bh_end_io(error=%d) for %c @%llu (%s/%llu/%d)\n",
2156
-		       iodone_w_error,
2157
-		       btrfsic_get_block_type(dev_state->state, block),
2158
-		       block->logical_bytenr, block->dev_state->name,
2159
-		       block->dev_bytenr, block->mirror_num);
2160
-
2161
-	block->iodone_w_error = iodone_w_error;
2162
-	if (block->submit_bio_bh_rw & REQ_PREFLUSH) {
2163
-		dev_state->last_flush_gen++;
2164
-		if ((dev_state->state->print_mask &
2165
-		     BTRFSIC_PRINT_MASK_END_IO_BIO_BH))
2166
-			pr_info("bh_end_io() new %s flush_gen=%llu\n",
2167
-			       dev_state->name, dev_state->last_flush_gen);
2168
-	}
2169
-	if (block->submit_bio_bh_rw & REQ_FUA)
2170
-		block->flush_gen = 0; /* FUA completed means block is on disk */
2171
-
2172
-	bh->b_private = block->orig_bio_bh_private;
2173
-	bh->b_end_io = block->orig_bio_bh_end_io.bh;
2174
-	block->is_iodone = 1; /* for FLUSH, this releases the block */
2175
-	bh->b_end_io(bh, uptodate);
21762120 }
21772121 
21782122 static int btrfsic_process_written_superblock(
....@@ -2282,7 +2226,6 @@
22822226 					mirror_num,
22832227 					&was_created);
22842228 			if (NULL == next_block) {
2285
-				pr_info("btrfsic: error, kmalloc failed!\n");
22862229 				btrfsic_release_block_ctx(&tmp_next_block_ctx);
22872230 				return -1;
22882231 			}
....@@ -2326,7 +2269,7 @@
23262269 		 * write operations. Therefore it keeps the linkage
23272270 		 * information for a block until a block is
23282271 		 * rewritten. This can temporarily cause incorrect
2329
-		 * and even circular linkage informations. This
2272
+		 * and even circular linkage information. This
23302273 		 * causes no harm unless such blocks are referenced
23312274 		 * by the most recent super block.
23322275 		 */
....@@ -2590,10 +2533,8 @@
25902533 						&state->block_link_hashtable);
25912534 	if (NULL == l) {
25922535 		l = btrfsic_block_link_alloc();
2593
-		if (NULL == l) {
2594
-			pr_info("btrfsic: error, kmalloc failed!\n");
2536
+		if (!l)
25952537 			return NULL;
2596
-		}
25972538 
25982539 		l->block_ref_to = next_block;
25992540 		l->block_ref_from = from_block;
....@@ -2637,10 +2578,9 @@
26372578 		struct btrfsic_dev_state *dev_state;
26382579 
26392580 		block = btrfsic_block_alloc();
2640
-		if (NULL == block) {
2641
-			pr_info("btrfsic: error, kmalloc failed!\n");
2581
+		if (!block)
26422582 			return NULL;
2643
-		}
2583
+
26442584 		dev_state = btrfsic_dev_state_lookup(block_ctx->dev->bdev->bd_dev);
26452585 		if (NULL == dev_state) {
26462586 			pr_info("btrfsic: error, lookup dev_state failed!\n");
....@@ -2727,63 +2667,6 @@
27272667 						  &btrfsic_dev_state_hashtable);
27282668 }
27292669 
2730
-int btrfsic_submit_bh(int op, int op_flags, struct buffer_head *bh)
2731
-{
2732
-	struct btrfsic_dev_state *dev_state;
2733
-
2734
-	if (!btrfsic_is_initialized)
2735
-		return submit_bh(op, op_flags, bh);
2736
-
2737
-	mutex_lock(&btrfsic_mutex);
2738
-	/* since btrfsic_submit_bh() might also be called before
2739
-	 * btrfsic_mount(), this might return NULL */
2740
-	dev_state = btrfsic_dev_state_lookup(bh->b_bdev->bd_dev);
2741
-
2742
-	/* Only called to write the superblock (incl. FLUSH/FUA) */
2743
-	if (NULL != dev_state &&
2744
-	    (op == REQ_OP_WRITE) && bh->b_size > 0) {
2745
-		u64 dev_bytenr;
2746
-
2747
-		dev_bytenr = BTRFS_BDEV_BLOCKSIZE * bh->b_blocknr;
2748
-		if (dev_state->state->print_mask &
2749
-		    BTRFSIC_PRINT_MASK_SUBMIT_BIO_BH)
2750
-			pr_info("submit_bh(op=0x%x,0x%x, blocknr=%llu (bytenr %llu), size=%zu, data=%p, bdev=%p)\n",
2751
-			       op, op_flags, (unsigned long long)bh->b_blocknr,
2752
-			       dev_bytenr, bh->b_size, bh->b_data, bh->b_bdev);
2753
-		btrfsic_process_written_block(dev_state, dev_bytenr,
2754
-					      &bh->b_data, 1, NULL,
2755
-					      NULL, bh, op_flags);
2756
-	} else if (NULL != dev_state && (op_flags & REQ_PREFLUSH)) {
2757
-		if (dev_state->state->print_mask &
2758
-		    BTRFSIC_PRINT_MASK_SUBMIT_BIO_BH)
2759
-			pr_info("submit_bh(op=0x%x,0x%x FLUSH, bdev=%p)\n",
2760
-			       op, op_flags, bh->b_bdev);
2761
-		if (!dev_state->dummy_block_for_bio_bh_flush.is_iodone) {
2762
-			if ((dev_state->state->print_mask &
2763
-			     (BTRFSIC_PRINT_MASK_SUBMIT_BIO_BH |
2764
-			      BTRFSIC_PRINT_MASK_VERBOSE)))
2765
-				pr_info("btrfsic_submit_bh(%s) with FLUSH but dummy block already in use (ignored)!\n",
2766
-				       dev_state->name);
2767
-		} else {
2768
-			struct btrfsic_block *const block =
2769
-				&dev_state->dummy_block_for_bio_bh_flush;
2770
-
2771
-			block->is_iodone = 0;
2772
-			block->never_written = 0;
2773
-			block->iodone_w_error = 0;
2774
-			block->flush_gen = dev_state->last_flush_gen + 1;
2775
-			block->submit_bio_bh_rw = op_flags;
2776
-			block->orig_bio_bh_private = bh->b_private;
2777
-			block->orig_bio_bh_end_io.bh = bh->b_end_io;
2778
-			block->next_in_same_bio = NULL;
2779
-			bh->b_private = block;
2780
-			bh->b_end_io = btrfsic_bh_end_io;
2781
-		}
2782
-	}
2783
-	mutex_unlock(&btrfsic_mutex);
2784
-	return submit_bh(op, op_flags, bh);
2785
-}
2786
-
27872670 static void __btrfsic_submit_bio(struct bio *bio)
27882671 {
27892672 	struct btrfsic_dev_state *dev_state;
....@@ -2835,7 +2718,7 @@
28352718 		btrfsic_process_written_block(dev_state, dev_bytenr,
28362719 					      mapped_datav, segs,
28372720 					      bio, &bio_is_patched,
2838
-					      NULL, bio->bi_opf);
2721
+					      bio->bi_opf);
28392722 		bio_for_each_segment(bvec, bio, iter)
28402723 			kunmap(bvec.bv_page);
28412724 		kfree(mapped_datav);
....@@ -2859,8 +2742,8 @@
28592742 			block->iodone_w_error = 0;
28602743 			block->flush_gen = dev_state->last_flush_gen + 1;
28612744 			block->submit_bio_bh_rw = bio->bi_opf;
2862
-			block->orig_bio_bh_private = bio->bi_private;
2863
-			block->orig_bio_bh_end_io.bio = bio->bi_end_io;
2745
+			block->orig_bio_private = bio->bi_private;
2746
+			block->orig_bio_end_io = bio->bi_end_io;
28642747 			block->next_in_same_bio = NULL;
28652748 			bio->bi_private = block;
28662749 			bio->bi_end_io = btrfsic_bio_end_io;
....@@ -2891,21 +2774,19 @@
28912774 	struct list_head *dev_head = &fs_devices->devices;
28922775 	struct btrfs_device *device;
28932776 
2894
-	if (fs_info->nodesize & ((u64)PAGE_SIZE - 1)) {
2777
+	if (!PAGE_ALIGNED(fs_info->nodesize)) {
28952778 		pr_info("btrfsic: cannot handle nodesize %d not being a multiple of PAGE_SIZE %ld!\n",
28962779 		       fs_info->nodesize, PAGE_SIZE);
28972780 		return -1;
28982781 	}
2899
-	if (fs_info->sectorsize & ((u64)PAGE_SIZE - 1)) {
2782
+	if (!PAGE_ALIGNED(fs_info->sectorsize)) {
29002783 		pr_info("btrfsic: cannot handle sectorsize %d not being a multiple of PAGE_SIZE %ld!\n",
29012784 		       fs_info->sectorsize, PAGE_SIZE);
29022785 		return -1;
29032786 	}
29042787 	state = kvzalloc(sizeof(*state), GFP_KERNEL);
2905
-	if (!state) {
2906
-		pr_info("btrfs check-integrity: allocation failed!\n");
2788
+	if (!state)
29072789 		return -ENOMEM;
2908
-	}
29092790 
29102791 	if (!btrfsic_is_initialized) {
29112792 		mutex_init(&btrfsic_mutex);
....@@ -2934,7 +2815,6 @@
29342815 
29352816 		ds = btrfsic_dev_state_alloc();
29362817 		if (NULL == ds) {
2937
-			pr_info("btrfs check-integrity: kmalloc() failed!\n");
29382818 			mutex_unlock(&btrfsic_mutex);
29392819 			return -ENOMEM;
29402820 		}