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Code Issues Releases Wiki Activity

f2fs: clean up the start_bidx_of_node function

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This patch also resolves the following warning reported by kbuild test robot.

fs/f2fs/gc.c: In function 'start_bidx_of_node':
fs/f2fs/gc.c:453:21: warning: 'bidx' may be used uninitialized in this function

Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
This commit is contained in:
Jaegeuk Kim 2012-12-26 12:03:22 +09:00
parent 64c576fe51
commit ce19a5d432
1 changed files with 8 additions and 14 deletions
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22
fs/f2fs/gc.c
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@ -430,28 +430,22 @@ static int gc_node_segment(struct f2fs_sb_info *sbi,
*/
block_t start_bidx_of_node(unsigned int node_ofs)
{
block_t start_bidx;
unsigned int bidx, indirect_blks;
int dec;
unsigned int indirect_blks = 2 * NIDS_PER_BLOCK + 4;
unsigned int bidx;
indirect_blks = 2 * NIDS_PER_BLOCK + 4;
if (node_ofs == 0)
return 0;
start_bidx = 1;
if (node_ofs == 0) {
start_bidx = 0;
} else if (node_ofs <= 2) {
if (node_ofs <= 2) {
bidx = node_ofs - 1;
} else if (node_ofs <= indirect_blks) {
dec = (node_ofs - 4) / (NIDS_PER_BLOCK + 1);
int dec = (node_ofs - 4) / (NIDS_PER_BLOCK + 1);
bidx = node_ofs - 2 - dec;
} else {
dec = (node_ofs - indirect_blks - 3) / (NIDS_PER_BLOCK + 1);
int dec = (node_ofs - indirect_blks - 3) / (NIDS_PER_BLOCK + 1);
bidx = node_ofs - 5 - dec;
}
if (start_bidx)
start_bidx = bidx * ADDRS_PER_BLOCK + ADDRS_PER_INODE;
return start_bidx;
return bidx * ADDRS_PER_BLOCK + ADDRS_PER_INODE;
}
static int check_dnode(struct f2fs_sb_info *sbi, struct f2fs_summary *sum,