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f2fs: use wait_for_stable_page to avoid contention

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In write_begin, if storage supports stable_page, we don't need to wait for
writeback to update its contents.
This patch introduces to use wait_for_stable_page instead of
wait_on_page_writeback.

Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
This commit is contained in:
Jaegeuk Kim
2016-01-20 23:43:51 +08:00
parent 718e53fa63
commit fec1d6576c
13 changed files with 47 additions and 42 deletions
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7
fs/f2fs/data.c
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@@ -255,7 +255,7 @@ void set_data_blkaddr(struct dnode_of_data *dn)
struct page *node_page = dn->node_page;
unsigned int ofs_in_node = dn->ofs_in_node;
f2fs_wait_on_page_writeback(node_page, NODE);
f2fs_wait_on_page_writeback(node_page, NODE, true);
rn = F2FS_NODE(node_page);
@@ -1319,7 +1319,8 @@ continue_unlock:
if (PageWriteback(page)) {
if (wbc->sync_mode != WB_SYNC_NONE)
f2fs_wait_on_page_writeback(page, DATA);
f2fs_wait_on_page_writeback(page,
DATA, true);
else
goto continue_unlock;
}
@@ -1547,7 +1548,7 @@ repeat:
}
}
f2fs_wait_on_page_writeback(page, DATA);
f2fs_wait_on_page_writeback(page, DATA, false);
/* wait for GCed encrypted page writeback */
if (f2fs_encrypted_inode(inode) && S_ISREG(inode->i_mode))