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| author | Ingo Molnar <mingo@elte.hu> | 2008-12-24 23:08:26 +0300 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2008-12-24 23:08:26 +0300 |
| commit | db8862eafe8a5d030a3b02e81b8bb47447c315e3 (patch) | |
| tree | 073ea7b46809bf804134cbf008a593413c02a99c /drivers/md | |
| parent | c5dee6177f4bd2095aab7d9be9f6ebdddd6deee9 (diff) | |
| parent | c20137fc5329eaf24093fc48c52608dc66be8e5c (diff) | |
| download | linux-db8862eafe8a5d030a3b02e81b8bb47447c315e3.tar.xz | |
Merge branch 'linus' into tracing/hw-branch-tracing
Diffstat (limited to 'drivers/md')
| -rw-r--r-- | drivers/md/bitmap.c | 22 |
1 files changed, 17 insertions, 5 deletions
diff --git a/drivers/md/bitmap.c b/drivers/md/bitmap.c index ac89a5deaca2..ab7c8e4a61f9 100644 --- a/drivers/md/bitmap.c +++ b/drivers/md/bitmap.c @@ -208,16 +208,19 @@ static void bitmap_checkfree(struct bitmap *bitmap, unsigned long page) */ /* IO operations when bitmap is stored near all superblocks */ -static struct page *read_sb_page(mddev_t *mddev, long offset, unsigned long index) +static struct page *read_sb_page(mddev_t *mddev, long offset, + struct page *page, + unsigned long index, int size) { /* choose a good rdev and read the page from there */ mdk_rdev_t *rdev; struct list_head *tmp; - struct page *page = alloc_page(GFP_KERNEL); sector_t target; if (!page) + page = alloc_page(GFP_KERNEL); + if (!page) return ERR_PTR(-ENOMEM); rdev_for_each(rdev, tmp, mddev) { @@ -227,7 +230,9 @@ static struct page *read_sb_page(mddev_t *mddev, long offset, unsigned long inde target = rdev->sb_start + offset + index * (PAGE_SIZE/512); - if (sync_page_io(rdev->bdev, target, PAGE_SIZE, page, READ)) { + if (sync_page_io(rdev->bdev, target, + roundup(size, bdev_hardsect_size(rdev->bdev)), + page, READ)) { page->index = index; attach_page_buffers(page, NULL); /* so that free_buffer will * quietly no-op */ @@ -544,7 +549,9 @@ static int bitmap_read_sb(struct bitmap *bitmap) bitmap->sb_page = read_page(bitmap->file, 0, bitmap, bytes); } else { - bitmap->sb_page = read_sb_page(bitmap->mddev, bitmap->offset, 0); + bitmap->sb_page = read_sb_page(bitmap->mddev, bitmap->offset, + NULL, + 0, sizeof(bitmap_super_t)); } if (IS_ERR(bitmap->sb_page)) { err = PTR_ERR(bitmap->sb_page); @@ -957,11 +964,16 @@ static int bitmap_init_from_disk(struct bitmap *bitmap, sector_t start) */ page = bitmap->sb_page; offset = sizeof(bitmap_super_t); + read_sb_page(bitmap->mddev, bitmap->offset, + page, + index, count); } else if (file) { page = read_page(file, index, bitmap, count); offset = 0; } else { - page = read_sb_page(bitmap->mddev, bitmap->offset, index); + page = read_sb_page(bitmap->mddev, bitmap->offset, + NULL, + index, count); offset = 0; } if (IS_ERR(page)) { /* read error */ |