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f2fs: trace old block address for CoWed page

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This patch enables to trace old block address of CoWed page for better
debugging.

f2fs_submit_page_mbio: dev = (1,0), ino = 1, page_index = 0x1d4f0, oldaddr = 0xfe8ab, newaddr = 0xfee90 rw = WRITE_SYNC, type = NODE
f2fs_submit_page_mbio: dev = (1,0), ino = 1, page_index = 0x1d4f8, oldaddr = 0xfe8b0, newaddr = 0xfee91 rw = WRITE_SYNC, type = NODE
f2fs_submit_page_mbio: dev = (1,0), ino = 1, page_index = 0x1d4fa, oldaddr = 0xfe8ae, newaddr = 0xfee92 rw = WRITE_SYNC, type = NODE

f2fs_submit_page_mbio: dev = (1,0), ino = 134824, page_index = 0x96, oldaddr = 0xf049b, newaddr = 0x2bbe rw = WRITE, type = DATA
f2fs_submit_page_mbio: dev = (1,0), ino = 134824, page_index = 0x97, oldaddr = 0xf049c, newaddr = 0x2bbf rw = WRITE, type = DATA
f2fs_submit_page_mbio: dev = (1,0), ino = 134824, page_index = 0x98, oldaddr = 0xf049d, newaddr = 0x2bc0 rw = WRITE, type = DATA

f2fs_submit_page_mbio: dev = (1,0), ino = 135260, page_index = 0x47, oldaddr = 0xffffffff, newaddr = 0xf2631 rw = WRITE, type = DATA
f2fs_submit_page_mbio: dev = (1,0), ino = 135260, page_index = 0x48, oldaddr = 0xffffffff, newaddr = 0xf2632 rw = WRITE, type = DATA
f2fs_submit_page_mbio: dev = (1,0), ino = 135260, page_index = 0x49, oldaddr = 0xffffffff, newaddr = 0xf2633 rw = WRITE, type = DATA

Signed-off-by: Chao Yu <chao2.yu@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
This commit is contained in:
Chao Yu
2016-02-22 18:36:38 +08:00
committed by Jaegeuk Kim
parent 9a4cbc9e53
commit 7a9d75481b
9 changed files with 48 additions and 36 deletions
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25
fs/f2fs/data.c
View File

@@ -219,7 +219,7 @@ int f2fs_submit_page_bio(struct f2fs_io_info *fio)
f2fs_trace_ios(fio, 0);
/* Allocate a new bio */
bio = __bio_alloc(fio->sbi, fio->blk_addr, 1, is_read_io(fio->rw));
bio = __bio_alloc(fio->sbi, fio->new_blkaddr, 1, is_read_io(fio->rw));
if (bio_add_page(bio, page, PAGE_CACHE_SIZE, 0) < PAGE_CACHE_SIZE) {
bio_put(bio);
@@ -240,21 +240,24 @@ void f2fs_submit_page_mbio(struct f2fs_io_info *fio)
io = is_read ? &sbi->read_io : &sbi->write_io[btype];
verify_block_addr(sbi, fio->blk_addr);
if (fio->old_blkaddr != NEW_ADDR)
verify_block_addr(sbi, fio->old_blkaddr);
verify_block_addr(sbi, fio->new_blkaddr);
down_write(&io->io_rwsem);
if (!is_read)
inc_page_count(sbi, F2FS_WRITEBACK);
if (io->bio && (io->last_block_in_bio != fio->blk_addr - 1 ||
if (io->bio && (io->last_block_in_bio != fio->new_blkaddr - 1 ||
io->fio.rw != fio->rw))
__submit_merged_bio(io);
alloc_new:
if (io->bio == NULL) {
int bio_blocks = MAX_BIO_BLOCKS(sbi);
io->bio = __bio_alloc(sbi, fio->blk_addr, bio_blocks, is_read);
io->bio = __bio_alloc(sbi, fio->new_blkaddr,
bio_blocks, is_read);
io->fio = *fio;
}
@@ -266,7 +269,7 @@ alloc_new:
goto alloc_new;
}
io->last_block_in_bio = fio->blk_addr;
io->last_block_in_bio = fio->new_blkaddr;
f2fs_trace_ios(fio, 0);
up_write(&io->io_rwsem);
@@ -400,7 +403,7 @@ got_it:
return page;
}
fio.blk_addr = dn.data_blkaddr;
fio.new_blkaddr = fio.old_blkaddr = dn.data_blkaddr;
fio.page = page;
err = f2fs_submit_page_bio(&fio);
if (err)
@@ -1071,11 +1074,10 @@ int do_write_data_page(struct f2fs_io_info *fio)
if (err)
return err;
fio->blk_addr = dn.data_blkaddr;
fio->old_blkaddr = dn.data_blkaddr;
/* This page is already truncated */
if (fio->blk_addr == NULL_ADDR) {
if (fio->old_blkaddr == NULL_ADDR) {
ClearPageUptodate(page);
goto out_writepage;
}
@@ -1084,7 +1086,7 @@ int do_write_data_page(struct f2fs_io_info *fio)
/* wait for GCed encrypted page writeback */
f2fs_wait_on_encrypted_page_writeback(F2FS_I_SB(inode),
fio->blk_addr);
fio->old_blkaddr);
fio->encrypted_page = f2fs_encrypt(inode, fio->page);
if (IS_ERR(fio->encrypted_page)) {
@@ -1099,7 +1101,7 @@ int do_write_data_page(struct f2fs_io_info *fio)
* If current allocation needs SSR,
* it had better in-place writes for updated data.
*/
if (unlikely(fio->blk_addr != NEW_ADDR &&
if (unlikely(fio->old_blkaddr != NEW_ADDR &&
!is_cold_data(page) &&
!IS_ATOMIC_WRITTEN_PAGE(page) &&
need_inplace_update(inode))) {
@@ -1573,7 +1575,8 @@ repeat:
.sbi = sbi,
.type = DATA,
.rw = READ_SYNC,
.blk_addr = blkaddr,
.old_blkaddr = blkaddr,
.new_blkaddr = blkaddr,
.page = page,
.encrypted_page = NULL,
};