diff options
| -rw-r--r-- | fs/f2fs/data.c | 51 | ||||
| -rw-r--r-- | fs/f2fs/debug.c | 4 | ||||
| -rw-r--r-- | fs/f2fs/f2fs.h | 10 |
3 files changed, 64 insertions, 1 deletions
diff --git a/fs/f2fs/data.c b/fs/f2fs/data.c index b293cb3e27a2..1d15535e3b42 100644 --- a/fs/f2fs/data.c +++ b/fs/f2fs/data.c @@ -2548,6 +2548,53 @@ static int check_direct_IO(struct inode *inode, struct iov_iter *iter, return 0; } +static void f2fs_dio_end_io(struct bio *bio) +{ + struct f2fs_private_dio *dio = bio->bi_private; + + dec_page_count(F2FS_I_SB(dio->inode), + dio->write ? F2FS_DIO_WRITE : F2FS_DIO_READ); + + bio->bi_private = dio->orig_private; + bio->bi_end_io = dio->orig_end_io; + + kfree(dio); + + bio_endio(bio); +} + +static void f2fs_dio_submit_bio(struct bio *bio, struct inode *inode, + loff_t file_offset) +{ + struct f2fs_private_dio *dio; + bool write = (bio_op(bio) == REQ_OP_WRITE); + int err; + + dio = f2fs_kzalloc(F2FS_I_SB(inode), + sizeof(struct f2fs_private_dio), GFP_NOFS); + if (!dio) { + err = -ENOMEM; + goto out; + } + + dio->inode = inode; + dio->orig_end_io = bio->bi_end_io; + dio->orig_private = bio->bi_private; + dio->write = write; + + bio->bi_end_io = f2fs_dio_end_io; + bio->bi_private = dio; + + inc_page_count(F2FS_I_SB(inode), + write ? F2FS_DIO_WRITE : F2FS_DIO_READ); + + submit_bio(bio); + return; +out: + bio->bi_status = BLK_STS_IOERR; + bio_endio(bio); +} + static ssize_t f2fs_direct_IO(struct kiocb *iocb, struct iov_iter *iter) { struct address_space *mapping = iocb->ki_filp->f_mapping; @@ -2594,7 +2641,9 @@ static ssize_t f2fs_direct_IO(struct kiocb *iocb, struct iov_iter *iter) down_read(&fi->i_gc_rwsem[READ]); } - err = blockdev_direct_IO(iocb, inode, iter, get_data_block_dio); + err = __blockdev_direct_IO(iocb, inode, inode->i_sb->s_bdev, + iter, get_data_block_dio, NULL, f2fs_dio_submit_bio, + DIO_LOCKING | DIO_SKIP_HOLES); if (do_opu) up_read(&fi->i_gc_rwsem[READ]); diff --git a/fs/f2fs/debug.c b/fs/f2fs/debug.c index 0ba662315d93..1f1230f690ec 100644 --- a/fs/f2fs/debug.c +++ b/fs/f2fs/debug.c @@ -53,6 +53,8 @@ static void update_general_status(struct f2fs_sb_info *sbi) si->vw_cnt = atomic_read(&sbi->vw_cnt); si->max_aw_cnt = atomic_read(&sbi->max_aw_cnt); si->max_vw_cnt = atomic_read(&sbi->max_vw_cnt); + si->nr_dio_read = get_pages(sbi, F2FS_DIO_READ); + si->nr_dio_write = get_pages(sbi, F2FS_DIO_WRITE); si->nr_wb_cp_data = get_pages(sbi, F2FS_WB_CP_DATA); si->nr_wb_data = get_pages(sbi, F2FS_WB_DATA); si->nr_rd_data = get_pages(sbi, F2FS_RD_DATA); @@ -374,6 +376,8 @@ static int stat_show(struct seq_file *s, void *v) seq_printf(s, " - Inner Struct Count: tree: %d(%d), node: %d\n", si->ext_tree, si->zombie_tree, si->ext_node); seq_puts(s, "\nBalancing F2FS Async:\n"); + seq_printf(s, " - DIO (R: %4d, W: %4d)\n", + si->nr_dio_read, si->nr_dio_write); seq_printf(s, " - IO_R (Data: %4d, Node: %4d, Meta: %4d\n", si->nr_rd_data, si->nr_rd_node, si->nr_rd_meta); seq_printf(s, " - IO_W (CP: %4d, Data: %4d, Flush: (%4d %4d %4d), " diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h index 2e3dde8380e7..bebf26c67061 100644 --- a/fs/f2fs/f2fs.h +++ b/fs/f2fs/f2fs.h @@ -957,6 +957,8 @@ enum count_type { F2FS_RD_DATA, F2FS_RD_NODE, F2FS_RD_META, + F2FS_DIO_WRITE, + F2FS_DIO_READ, NR_COUNT_TYPE, }; @@ -1333,6 +1335,13 @@ struct f2fs_sb_info { __u32 s_chksum_seed; }; +struct f2fs_private_dio { + struct inode *inode; + void *orig_private; + bio_end_io_t *orig_end_io; + bool write; +}; + #ifdef CONFIG_F2FS_FAULT_INJECTION #define f2fs_show_injection_info(type) \ printk_ratelimited("%sF2FS-fs : inject %s in %s of %pF\n", \ @@ -3152,6 +3161,7 @@ struct f2fs_stat_info { int total_count, utilization; int bg_gc, nr_wb_cp_data, nr_wb_data; int nr_rd_data, nr_rd_node, nr_rd_meta; + int nr_dio_read, nr_dio_write; unsigned int io_skip_bggc, other_skip_bggc; int nr_flushing, nr_flushed, flush_list_empty; int nr_discarding, nr_discarded; |