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f2fs: do retry operations with cond_resched

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This patch revists retrial paths in f2fs.
The basic idea is to use cond_resched instead of retrying from the very early
stage.

Suggested-by: Gu Zheng <guz.fnst@cn.fujitsu.com>
Reviewed-by: Chao Yu <chao2.yu@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
This commit is contained in:
Jaegeuk Kim
2014-12-05 10:39:49 -08:00
parent 769ec6e5b7
commit 9be32d72be
4 changed files with 20 additions and 38 deletions
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5
fs/f2fs/segment.c
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@@ -179,13 +179,13 @@ void register_inmem_page(struct inode *inode, struct page *page)
struct f2fs_inode_info *fi = F2FS_I(inode);
struct inmem_pages *new;
int err;
retry:
new = f2fs_kmem_cache_alloc(inmem_entry_slab, GFP_NOFS);
/* add atomic page indices to the list */
new->page = page;
INIT_LIST_HEAD(&new->list);
retry:
/* increase reference count with clean state */
mutex_lock(&fi->inmem_lock);
err = radix_tree_insert(&fi->inmem_root, page->index, new);
@@ -195,7 +195,6 @@ retry:
return;
} else if (err) {
mutex_unlock(&fi->inmem_lock);
kmem_cache_free(inmem_entry_slab, new);
goto retry;
}
get_page(page);