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-rw-r--r--fs/nilfs2/inode.c18
1 files changed, 10 insertions, 8 deletions
diff --git a/fs/nilfs2/inode.c b/fs/nilfs2/inode.c
index 49ab4a49bb4f..2696d6b513b7 100644
--- a/fs/nilfs2/inode.c
+++ b/fs/nilfs2/inode.c
@@ -43,22 +43,23 @@
*
* This function does not issue actual read request of the specified data
* block. It is done by VFS.
- * Bulk read for direct-io is not supported yet. (should be supported)
*/
int nilfs_get_block(struct inode *inode, sector_t blkoff,
struct buffer_head *bh_result, int create)
{
struct nilfs_inode_info *ii = NILFS_I(inode);
- unsigned long blknum = 0;
+ __u64 blknum = 0;
int err = 0, ret;
struct inode *dat = nilfs_dat_inode(NILFS_I_NILFS(inode));
+ unsigned maxblocks = bh_result->b_size >> inode->i_blkbits;
- /* This exclusion control is a workaround; should be revised */
- down_read(&NILFS_MDT(dat)->mi_sem); /* XXX */
- ret = nilfs_bmap_lookup(ii->i_bmap, (unsigned long)blkoff, &blknum);
- up_read(&NILFS_MDT(dat)->mi_sem); /* XXX */
- if (ret == 0) { /* found */
+ down_read(&NILFS_MDT(dat)->mi_sem);
+ ret = nilfs_bmap_lookup_contig(ii->i_bmap, blkoff, &blknum, maxblocks);
+ up_read(&NILFS_MDT(dat)->mi_sem);
+ if (ret >= 0) { /* found */
map_bh(bh_result, inode->i_sb, blknum);
+ if (ret > 0)
+ bh_result->b_size = (ret << inode->i_blkbits);
goto out;
}
/* data block was not found */
@@ -240,7 +241,7 @@ nilfs_direct_IO(int rw, struct kiocb *iocb, const struct iovec *iov,
struct address_space_operations nilfs_aops = {
.writepage = nilfs_writepage,
.readpage = nilfs_readpage,
- /* .sync_page = nilfs_sync_page, */
+ .sync_page = block_sync_page,
.writepages = nilfs_writepages,
.set_page_dirty = nilfs_set_page_dirty,
.readpages = nilfs_readpages,
@@ -249,6 +250,7 @@ struct address_space_operations nilfs_aops = {
/* .releasepage = nilfs_releasepage, */
.invalidatepage = block_invalidatepage,
.direct_IO = nilfs_direct_IO,
+ .is_partially_uptodate = block_is_partially_uptodate,
};
struct inode *nilfs_new_inode(struct inode *dir, int mode)