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f2fs: preserve extent info for extent cache

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This patch tries to preserve last extent info in extent tree cache into on-disk
inode, so this can help us to reuse the last extent info next time for
performance.

Signed-off-by: Chao Yu <chao2.yu@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
This commit is contained in:
Chao Yu
2015-03-19 19:27:51 +08:00
committed by Jaegeuk Kim
parent 028a41e893
commit 0bdee48250
3 changed files with 62 additions and 0 deletions
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5
fs/f2fs/inode.c
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@@ -343,7 +343,12 @@ void f2fs_evict_inode(struct inode *inode)
no_delete:
stat_dec_inline_dir(inode);
stat_dec_inline_inode(inode);
/* update extent info in inode */
if (inode->i_nlink)
f2fs_preserve_extent_tree(inode);
f2fs_destroy_extent_tree(inode);
invalidate_mapping_pages(NODE_MAPPING(sbi), inode->i_ino, inode->i_ino);
if (xnid)
invalidate_mapping_pages(NODE_MAPPING(sbi), xnid, xnid);