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f2fs: avoid reading NAT page by get_node_info

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We've not seen this buggy case for a long time, so it's time to avoid this
unnecessary get_node_info() call which reading NAT page to cache nat entry.

Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
This commit is contained in:
Jaegeuk Kim 2017-02-13 17:02:44 -08:00
parent 9b064f7d0c
commit 25cc5d3b9d
1 changed files with 9 additions and 7 deletions
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16
fs/f2fs/node.c
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@ -1028,7 +1028,7 @@ struct page *new_node_page(struct dnode_of_data *dn,
unsigned int ofs, struct page *ipage)
{
struct f2fs_sb_info *sbi = F2FS_I_SB(dn->inode);
struct node_info old_ni, new_ni;
struct node_info new_ni;
struct page *page;
int err;
@ -1043,13 +1043,15 @@ struct page *new_node_page(struct dnode_of_data *dn,
err = -ENOSPC;
goto fail;
}
get_node_info(sbi, dn->nid, &old_ni);
/* Reinitialize old_ni with new node page */
f2fs_bug_on(sbi, old_ni.blk_addr != NULL_ADDR);
new_ni = old_ni;
#ifdef CONFIG_F2FS_CHECK_FS
get_node_info(sbi, dn->nid, &new_ni);
f2fs_bug_on(sbi, new_ni.blk_addr != NULL_ADDR);
#endif
new_ni.nid = dn->nid;
new_ni.ino = dn->inode->i_ino;
new_ni.blk_addr = NULL_ADDR;
new_ni.flag = 0;
new_ni.version = 0;
set_node_addr(sbi, &new_ni, NEW_ADDR, false);
f2fs_wait_on_page_writeback(page, NODE, true);