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f2fs: add to account direct IO

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This patch adds f2fs_dio_submit_bio() to hook submit_io/end_io functions
in direct IO path, in order to account DIO.

Later, we will add this count into is_idle() to let background GC/Discard
thread be aware of DIO.

Signed-off-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
This commit is contained in:
Chao Yu
2018-11-12 00:46:46 +08:00
committed by Jaegeuk Kim
parent b61ac5b720
commit 02b16d0a34
3 changed files with 64 additions and 1 deletions
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10
fs/f2fs/f2fs.h
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@@ -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;