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2012 Jul 12
3
[PATCH v2] Btrfs: improve multi-thread buffer read
...> --- v1->v2: if we fail to make a allocation, just fall back to the old way to read page. fs/btrfs/extent_io.c | 41 +++++++++++++++++++++++++++++++++++++++-- 1 files changed, 39 insertions(+), 2 deletions(-) diff --git a/fs/btrfs/extent_io.c b/fs/btrfs/extent_io.c index 01c21b6..5c8ab6c 100644 --- a/fs/btrfs/extent_io.c +++ b/fs/btrfs/extent_io.c @@ -3549,6 +3549,11 @@ int extent_writepages(struct extent_io_tree *tree, return ret; } +struct pagelst { + struct page *page; + struct list_head lst; +}; + int extent_readpages(struct extent_io_tree *tree, struct address_sp...