f2fs: introduce macros to convert bytes and blocks in f2fs
This patch adds two macros for transition between byte and block offsets.
Currently, f2fs only supports 4KB blocks, so use the default size for now.
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
diff --git a/fs/f2fs/segment.c b/fs/f2fs/segment.c
index 9f278d1..877a272 100644
--- a/fs/f2fs/segment.c
+++ b/fs/f2fs/segment.c
@@ -1048,8 +1048,8 @@
int f2fs_trim_fs(struct f2fs_sb_info *sbi, struct fstrim_range *range)
{
- __u64 start = range->start >> sbi->log_blocksize;
- __u64 end = start + (range->len >> sbi->log_blocksize) - 1;
+ __u64 start = F2FS_BYTES_TO_BLK(range->start);
+ __u64 end = start + F2FS_BYTES_TO_BLK(range->len) - 1;
unsigned int start_segno, end_segno;
struct cp_control cpc;
@@ -1066,7 +1066,7 @@
end_segno = (end >= MAX_BLKADDR(sbi)) ? MAIN_SEGS(sbi) - 1 :
GET_SEGNO(sbi, end);
cpc.reason = CP_DISCARD;
- cpc.trim_minlen = range->minlen >> sbi->log_blocksize;
+ cpc.trim_minlen = F2FS_BYTES_TO_BLK(range->minlen);
/* do checkpoint to issue discard commands safely */
for (; start_segno <= end_segno; start_segno = cpc.trim_end + 1) {
@@ -1080,7 +1080,7 @@
mutex_unlock(&sbi->gc_mutex);
}
out:
- range->len = cpc.trimmed << sbi->log_blocksize;
+ range->len = F2FS_BLK_TO_BYTES(cpc.trimmed);
return 0;
}