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f2fs: skip searching non-exist range in truncate_hole 

Let's skip entire non-exist area to speed up truncate_hole by
using get_next_page_offset.

Signed-off-by: Weichao Guo <guoweichao@huawei.com>
Reviewed-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
This commit is contained in:
Weichao Guo 2017-10-14 08:13:32 +08:00 committed by Jaegeuk Kim
parent 5b4267d195
commit 48ab25f486
1 changed files with 1 additions and 1 deletions
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fs/f2fs/file.c
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@ -857,7 +857,7 @@ int truncate_hole(struct inode *inode, pgoff_t pg_start, pgoff_t pg_end)
err = get_dnode_of_data(&dn, pg_start, LOOKUP_NODE);
if (err) {
if (err == -ENOENT) {
pg_start++;
pg_start = get_next_page_offset(&dn, pg_start);
continue;
}
return err;