If the bitmap size is less than one page including super_block and
bitmap and the inode's i_blkbits is also small, when doing the
read_page function call to read the sb_page, it may return a error.
For example, if the device is 12800 chunks, its bitmap file size is
about 1.6KB include the bitmap
the end of the file.
Cc: yang yin [EMAIL PROTECTED]
Signed-off-by: Neil Brown [EMAIL PROTECTED]
### Diffstat output
./drivers/md/bitmap.c | 12
1 file changed, 8 insertions(+), 4 deletions(-)
diff .prev/drivers/md/bitmap.c ./drivers/md/bitmap.c
--- .prev/drivers/md/bitmap.c 2007
