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Code Issues Releases Wiki Activity

f2fs: fix blkofs_end correctly in f2fs_migrate_blocks() 

In f2fs_migrate_blocks(), when traversing blocks in last section,
blkofs_end should be (start_blk + blkcnt - 1) % blk_per_sec, fix it.

Signed-off-by: Chao Yu <chao@kernel.org>
Reviewed-by: Daeho Jeong <daehojeong@google.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
This commit is contained in:
Chao Yu 2024-02-26 09:32:05 +08:00 committed by Jaegeuk Kim
parent a217f1873a
commit 8249aac1b0
1 changed files with 3 additions and 2 deletions
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5
fs/f2fs/data.c
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@ -3841,13 +3841,14 @@ static int f2fs_migrate_blocks(struct inode *inode, block_t start_blk,
struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
unsigned int blkofs;
unsigned int blk_per_sec = BLKS_PER_SEC(sbi);
unsigned int end_blk = start_blk + blkcnt - 1;
unsigned int secidx = start_blk / blk_per_sec;
unsigned int end_sec;
int ret = 0;
if (!blkcnt)
return 0;
end_sec = secidx + (blkcnt - 1) / blk_per_sec;
end_sec = end_blk / blk_per_sec;
f2fs_down_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
filemap_invalidate_lock(inode->i_mapping);
@ -3857,7 +3858,7 @@ static int f2fs_migrate_blocks(struct inode *inode, block_t start_blk,
for (; secidx <= end_sec; secidx++) {
unsigned int blkofs_end = secidx == end_sec ?
(blkcnt - 1) % blk_per_sec : blk_per_sec - 1;
end_blk % blk_per_sec : blk_per_sec - 1;
f2fs_down_write(&sbi->pin_sem);