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f2fs: introduce macros to convert bytes and blocks in f2fs

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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>
This commit is contained in:
Jaegeuk Kim
2015-02-09 12:02:44 -08:00
parent da17eece03
commit f7ef9b83b5
4 changed files with 12 additions and 10 deletions
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8
fs/f2fs/segment.c
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@@ -1048,8 +1048,8 @@ static const struct segment_allocation default_salloc_ops = {
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 @@ int f2fs_trim_fs(struct f2fs_sb_info *sbi, struct fstrim_range *range)
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 @@ int f2fs_trim_fs(struct f2fs_sb_info *sbi, struct fstrim_range *range)
mutex_unlock(&sbi->gc_mutex);
}
out:
range->len = cpc.trimmed << sbi->log_blocksize;
range->len = F2FS_BLK_TO_BYTES(cpc.trimmed);
return 0;
}