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| author | Paul Mackerras <paulus@samba.org> | 2007-02-07 14:05:13 +1100 |
|---|---|---|
| committer | Paul Mackerras <paulus@samba.org> | 2007-02-07 14:05:13 +1100 |
| commit | 8423200553113cc031caa9b147f6150a8e26545c (patch) | |
| tree | 752c93a200c9ba056c7469c96f7e27d02c99291d /drivers/md/bitmap.c | |
| parent | f03e64f2ca6ee3d0b7824536b1940497701fe766 (diff) | |
| parent | 62d0cfcb27cf755cebdc93ca95dabc83608007cd (diff) | |
| download | blackbird-op-linux-8423200553113cc031caa9b147f6150a8e26545c.tar.gz blackbird-op-linux-8423200553113cc031caa9b147f6150a8e26545c.zip | |
Merge branch 'linux-2.6'
Diffstat (limited to 'drivers/md/bitmap.c')
| -rw-r--r-- | drivers/md/bitmap.c | 12 |
1 files changed, 8 insertions, 4 deletions
diff --git a/drivers/md/bitmap.c b/drivers/md/bitmap.c index 5432d07c074d..11108165e264 100644 --- a/drivers/md/bitmap.c +++ b/drivers/md/bitmap.c @@ -479,9 +479,12 @@ static int bitmap_read_sb(struct bitmap *bitmap) int err = -EINVAL; /* page 0 is the superblock, read it... */ - if (bitmap->file) - bitmap->sb_page = read_page(bitmap->file, 0, bitmap, PAGE_SIZE); - else { + if (bitmap->file) { + loff_t isize = i_size_read(bitmap->file->f_mapping->host); + int bytes = isize > PAGE_SIZE ? PAGE_SIZE : isize; + + bitmap->sb_page = read_page(bitmap->file, 0, bitmap, bytes); + } else { bitmap->sb_page = read_sb_page(bitmap->mddev, bitmap->offset, 0); } if (IS_ERR(bitmap->sb_page)) { @@ -877,7 +880,8 @@ static int bitmap_init_from_disk(struct bitmap *bitmap, sector_t start) int count; /* unmap the old page, we're done with it */ if (index == num_pages-1) - count = bytes - index * PAGE_SIZE; + count = bytes + sizeof(bitmap_super_t) + - index * PAGE_SIZE; else count = PAGE_SIZE; if (index == 0) { |
