diff options
Diffstat (limited to 'fs/btrfs')
| -rw-r--r-- | fs/btrfs/extent_io.c | 29 |
1 files changed, 12 insertions, 17 deletions
diff --git a/fs/btrfs/extent_io.c b/fs/btrfs/extent_io.c index 2595f9ff0a57..9edef629ace2 100644 --- a/fs/btrfs/extent_io.c +++ b/fs/btrfs/extent_io.c @@ -2824,25 +2824,20 @@ static void end_bio_extent_writepage(struct bio *bio) struct page *page = bvec->bv_page; struct inode *inode = page->mapping->host; struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb); + const u32 sectorsize = fs_info->sectorsize; - /* We always issue full-page reads, but if some block - * in a page fails to read, blk_update_request() will - * advance bv_offset and adjust bv_len to compensate. - * Print a warning for nonzero offsets, and an error - * if they don't add up to a full page. */ - if (bvec->bv_offset || bvec->bv_len != PAGE_SIZE) { - if (bvec->bv_offset + bvec->bv_len != PAGE_SIZE) - btrfs_err(fs_info, - "partial page write in btrfs with offset %u and length %u", - bvec->bv_offset, bvec->bv_len); - else - btrfs_info(fs_info, - "incomplete page write in btrfs with offset %u and length %u", - bvec->bv_offset, bvec->bv_len); - } + /* Our read/write should always be sector aligned. */ + if (!IS_ALIGNED(bvec->bv_offset, sectorsize)) + btrfs_err(fs_info, + "partial page write in btrfs with offset %u and length %u", + bvec->bv_offset, bvec->bv_len); + else if (!IS_ALIGNED(bvec->bv_len, sectorsize)) + btrfs_info(fs_info, + "incomplete page write with offset %u and length %u", + bvec->bv_offset, bvec->bv_len); - start = page_offset(page); - end = start + bvec->bv_offset + bvec->bv_len - 1; + start = page_offset(page) + bvec->bv_offset; + end = start + bvec->bv_len - 1; if (first_bvec) { btrfs_record_physical_zoned(inode, start, bio); |