f2fs_write_node_page // 注意:使用本需要先对page持锁,同时page是非dirty状态,bdi任务不会重新下刷该pagestaticint__write_node_page(structpage*page,boolatomic,bool*submitted,structwriteback_control*wbc,booldo_balance,enumiostat_typeio_type,unsignedint*seq_id){...// 初始化fio,与block层的bio对应str...
bool retry; /* need to reallocate block address */ enum iostat_type io_type; /* io type */ struct writeback_control *io_wbc; /* writeback control */ unsigned char version; /* version of the node */ }; #define is_read_io(rw) ((rw) == READ) struct f2fs_bio_info { struct f...
int f2fs_write_single_data_page(struct page *page, int *submitted, int f2fs_write_single_data_page(struct folio *folio, int *submitted, struct bio **bio, sector_t *last_block, struct writeback_control *wbc, enum iostat_type io_type,0...
f2fs_update_iostat(sbi, NULL, FS_ZONE_RESET_IO, dc->di.len * F2FS_BLKSIZE); } #endif /* this function is copied from blkdev_issue_discard from block/blk-lib.c */ static int __submit_discard_cmd(struct f2fs_sb_info *sbi, struct discard_policy *dpolicy, @@ -1217,6 +1256,13 @...
"iostat.h" #include <trace/events/f2fs.h> #define DEFAULT_CHECKPOINT_IOPRIO (IOPRIO_PRIO_VALUE(IOPRIO_CLASS_BE, 3)) static struct kmem_cache *ino_entry_slab; struct kmem_cache *f2fs_inode_entry_slab; void f2fs_stop_checkpoint(struct f2fs_sb_info *sbi, bool end_io, unsigned char reason...
EN废话不多说了，直接上命令 # debian/ubuntu if ! type kpartx >/dev/null 2>&1; then apt...
$ iostat -p Linux 5.4.128 (OpenWrt) 07/14/21 _aarch64_ (4 CPU) avg-cpu: %user %nice %system %iowait %steal %idle 0.39 0.07 0.49 0.10 0.00 98.96 Device tps kB_read/s kB_wrtn/s kB_dscd/s kB_read kB_wrtn kB_dscd mmcblk0 3.15 80.08 8.71 5.39 214698 23352 14440 mmcblk0...
iostat_update_submit_ctx(bio, type); submit_bio(bio); @@ -689,33 +680,29 @@ void f2fs_flush_merged_writes(struct f2fs_sb_info *sbi) int f2fs_submit_page_bio(struct f2fs_io_info *fio) { struct bio *bio; struct page *page = fio->encrypted_page ?
What: /sys/fs/f2fs/<disk>/iostat_enable Date: August 2017 Contact: "Chao Yu" <yuchao0@huawei.com> Description: Controls to enable/disable IO stat. What: /sys/fs/f2fs/<disk>/ra_nid_pages Date: October 2015 Contact: "Chao Yu" <chao2.yu@samsung.com> @@ -122,6 +140,12 @@ Conta...
f2fs_update_iostat(F2FS_I_SB(inode), inode, APP_MAPPED_READ_IO, F2FS_BLKSIZE); trace_f2fs_filemap_fault(inode, vmf->pgoff, (unsigned long)ret); trace_f2fs_filemap_fault(inode, vmf->pgoff, vmf->vma->vm_flags, ret); return ret; } Expand All @@ -59,34 +59,37 @@ static vm_...