f2fs: support large sector size
Block size in f2fs is 4096 bytes, so theoretically, f2fs can support 4096 bytes
sector device at maximum. But now f2fs only support 512 bytes size sector, so
block device such as zRAM which uses page cache as its block storage space will
not be mounted successfully as mismatch between sector size of zRAM and sector
size of f2fs supported.
In this patch we support large sector size in f2fs, so block device with sector
size of 512/1024/2048/4096 bytes can be supported in f2fs.
Signed-off-by: Chao Yu <[email protected]>
Signed-off-by: Jaegeuk Kim <[email protected]>
diff --git a/fs/f2fs/data.c b/fs/f2fs/data.c
index aaf22a91..13ab7208 100644
--- a/fs/f2fs/data.c
+++ b/fs/f2fs/data.c
@@ -85,7 +85,7 @@
bio = bio_alloc(GFP_NOIO, npages);
bio->bi_bdev = sbi->sb->s_bdev;
- bio->bi_iter.bi_sector = SECTOR_FROM_BLOCK(sbi, blk_addr);
+ bio->bi_iter.bi_sector = SECTOR_FROM_BLOCK(blk_addr);
bio->bi_end_io = is_read ? f2fs_read_end_io : f2fs_write_end_io;
bio->bi_private = sbi;
diff --git a/fs/f2fs/segment.c b/fs/f2fs/segment.c
index 4ea53aab..24b768a 100644
--- a/fs/f2fs/segment.c
+++ b/fs/f2fs/segment.c
@@ -370,8 +370,8 @@
static int f2fs_issue_discard(struct f2fs_sb_info *sbi,
block_t blkstart, block_t blklen)
{
- sector_t start = SECTOR_FROM_BLOCK(sbi, blkstart);
- sector_t len = SECTOR_FROM_BLOCK(sbi, blklen);
+ sector_t start = SECTOR_FROM_BLOCK(blkstart);
+ sector_t len = SECTOR_FROM_BLOCK(blklen);
trace_f2fs_issue_discard(sbi->sb, blkstart, blklen);
return blkdev_issue_discard(sbi->sb->s_bdev, start, len, GFP_NOFS, 0);
}
diff --git a/fs/f2fs/segment.h b/fs/f2fs/segment.h
index 848ac51..032c090 100644
--- a/fs/f2fs/segment.h
+++ b/fs/f2fs/segment.h
@@ -89,10 +89,10 @@
#define TOTAL_SECS(sbi) (sbi->total_sections)
#define TOTAL_BLKS(sbi) (SM_I(sbi)->segment_count << sbi->log_blocks_per_seg)
-#define SECTOR_FROM_BLOCK(sbi, blk_addr) \
- (((sector_t)blk_addr) << (sbi)->log_sectors_per_block)
-#define SECTOR_TO_BLOCK(sbi, sectors) \
- (sectors >> (sbi)->log_sectors_per_block)
+#define SECTOR_FROM_BLOCK(blk_addr) \
+ (((sector_t)blk_addr) << F2FS_LOG_SECTORS_PER_BLOCK)
+#define SECTOR_TO_BLOCK(sectors) \
+ (sectors >> F2FS_LOG_SECTORS_PER_BLOCK)
#define MAX_BIO_BLOCKS(sbi) \
((int)min((int)max_hw_blocks(sbi), BIO_MAX_PAGES))
@@ -711,7 +711,7 @@
{
struct block_device *bdev = sbi->sb->s_bdev;
struct request_queue *q = bdev_get_queue(bdev);
- return SECTOR_TO_BLOCK(sbi, queue_max_sectors(q));
+ return SECTOR_TO_BLOCK(queue_max_sectors(q));
}
/*
diff --git a/fs/f2fs/super.c b/fs/f2fs/super.c
index ed4095e..3dfa1b5e 100644
--- a/fs/f2fs/super.c
+++ b/fs/f2fs/super.c
@@ -788,14 +788,22 @@
return 1;
}
- if (le32_to_cpu(raw_super->log_sectorsize) !=
- F2FS_LOG_SECTOR_SIZE) {
- f2fs_msg(sb, KERN_INFO, "Invalid log sectorsize");
+ /* Currently, support 512/1024/2048/4096 bytes sector size */
+ if (le32_to_cpu(raw_super->log_sectorsize) >
+ F2FS_MAX_LOG_SECTOR_SIZE ||
+ le32_to_cpu(raw_super->log_sectorsize) <
+ F2FS_MIN_LOG_SECTOR_SIZE) {
+ f2fs_msg(sb, KERN_INFO, "Invalid log sectorsize (%u)",
+ le32_to_cpu(raw_super->log_sectorsize));
return 1;
}
- if (le32_to_cpu(raw_super->log_sectors_per_block) !=
- F2FS_LOG_SECTORS_PER_BLOCK) {
- f2fs_msg(sb, KERN_INFO, "Invalid log sectors per block");
+ if (le32_to_cpu(raw_super->log_sectors_per_block) +
+ le32_to_cpu(raw_super->log_sectorsize) !=
+ F2FS_MAX_LOG_SECTOR_SIZE) {
+ f2fs_msg(sb, KERN_INFO,
+ "Invalid log sectors per block(%u) log sectorsize(%u)",
+ le32_to_cpu(raw_super->log_sectors_per_block),
+ le32_to_cpu(raw_super->log_sectorsize));
return 1;
}
return 0;
