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f2fs: drop page cache after fs shutdown

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Don't remain dirtied page cache in f2fs after shutdown, it can mitigate
memory pressure of whole system, in order to keep other modules working
properly.

Signed-off-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
This commit is contained in:
Chao Yu 2018-01-18 17:29:10 +08:00 committed by Jaegeuk Kim
parent 7950e9ac63
commit db198ae0f8
3 changed files with 21 additions and 17 deletions
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7
fs/f2fs/checkpoint.c
View File

@ -237,12 +237,15 @@ static int __f2fs_write_meta_page(struct page *page,
trace_f2fs_writepage(page, META);
if (unlikely(f2fs_cp_error(sbi))) {
dec_page_count(sbi, F2FS_DIRTY_META);
unlock_page(page);
return 0;
}
if (unlikely(is_sbi_flag_set(sbi, SBI_POR_DOING)))
goto redirty_out;
if (wbc->for_reclaim && page->index < GET_SUM_BLOCK(sbi, 0))
goto redirty_out;
if (unlikely(f2fs_cp_error(sbi)))
goto redirty_out;
write_meta_page(sbi, page, io_type);
dec_page_count(sbi, F2FS_DIRTY_META);

12
fs/f2fs/data.c
View File

@ -1716,6 +1716,12 @@ static int __write_data_page(struct page *page, bool *submitted,
trace_f2fs_writepage(page, DATA);
/* we should bypass data pages to proceed the kworkder jobs */
if (unlikely(f2fs_cp_error(sbi))) {
mapping_set_error(page->mapping, -EIO);
goto out;
}
if (unlikely(is_sbi_flag_set(sbi, SBI_POR_DOING)))
goto redirty_out;
@ -1740,12 +1746,6 @@ write:
available_free_memory(sbi, BASE_CHECK))))
goto redirty_out;
/* we should bypass data pages to proceed the kworkder jobs */
if (unlikely(f2fs_cp_error(sbi))) {
mapping_set_error(page->mapping, -EIO);
goto out;
}
/* Dentry blocks are controlled by checkpoint */
if (S_ISDIR(inode->i_mode)) {
fio.need_lock = LOCK_DONE;

19
fs/f2fs/node.c
View File

@ -1340,10 +1340,14 @@ static int __write_node_page(struct page *page, bool atomic, bool *submitted,
trace_f2fs_writepage(page, NODE);
if (unlikely(f2fs_cp_error(sbi))) {
dec_page_count(sbi, F2FS_DIRTY_NODES);
unlock_page(page);
return 0;
}
if (unlikely(is_sbi_flag_set(sbi, SBI_POR_DOING)))
goto redirty_out;
if (unlikely(f2fs_cp_error(sbi)))
goto redirty_out;
/* get old block addr of this node page */
nid = nid_of_node(page);
@ -1580,12 +1584,6 @@ next_step:
struct page *page = pvec.pages[i];
bool submitted = false;
if (unlikely(f2fs_cp_error(sbi))) {
pagevec_release(&pvec);
ret = -EIO;
goto out;
}
/*
* flushing sequence with step:
* 0. indirect nodes
@ -1655,9 +1653,12 @@ continue_unlock:
step++;
goto next_step;
}
out:
if (nwritten)
f2fs_submit_merged_write(sbi, NODE);
if (unlikely(f2fs_cp_error(sbi)))
return -EIO;
return ret;
}