diff options
author | David S. Miller <davem@davemloft.net> | 2010-01-22 22:45:46 -0800 |
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committer | David S. Miller <davem@davemloft.net> | 2010-01-22 22:45:46 -0800 |
commit | 6be325719b3e54624397e413efd4b33a997e55a3 (patch) | |
tree | 57f321a56794cab2222e179b16731e0d76a4a68a /fs/ocfs2/aops.c | |
parent | 26d92f9276a56d55511a427fb70bd70886af647a (diff) | |
parent | 92dcffb916d309aa01778bf8963a6932e4014d07 (diff) |
Merge branch 'master' of /home/davem/src/GIT/linux-2.6/
Diffstat (limited to 'fs/ocfs2/aops.c')
-rw-r--r-- | fs/ocfs2/aops.c | 34 |
1 files changed, 4 insertions, 30 deletions
diff --git a/fs/ocfs2/aops.c b/fs/ocfs2/aops.c index deb2b132ae5e..3dae4a13f6e4 100644 --- a/fs/ocfs2/aops.c +++ b/fs/ocfs2/aops.c @@ -547,6 +547,9 @@ bail: * * called like this: dio->get_blocks(dio->inode, fs_startblk, * fs_count, map_bh, dio->rw == WRITE); + * + * Note that we never bother to allocate blocks here, and thus ignore the + * create argument. */ static int ocfs2_direct_IO_get_blocks(struct inode *inode, sector_t iblock, struct buffer_head *bh_result, int create) @@ -563,14 +566,6 @@ static int ocfs2_direct_IO_get_blocks(struct inode *inode, sector_t iblock, inode_blocks = ocfs2_blocks_for_bytes(inode->i_sb, i_size_read(inode)); - /* - * Any write past EOF is not allowed because we'd be extending. - */ - if (create && (iblock + max_blocks) > inode_blocks) { - ret = -EIO; - goto bail; - } - /* This figures out the size of the next contiguous block, and * our logical offset */ ret = ocfs2_extent_map_get_blocks(inode, iblock, &p_blkno, @@ -582,15 +577,6 @@ static int ocfs2_direct_IO_get_blocks(struct inode *inode, sector_t iblock, goto bail; } - if (!ocfs2_sparse_alloc(OCFS2_SB(inode->i_sb)) && !p_blkno && create) { - ocfs2_error(inode->i_sb, - "Inode %llu has a hole at block %llu\n", - (unsigned long long)OCFS2_I(inode)->ip_blkno, - (unsigned long long)iblock); - ret = -EROFS; - goto bail; - } - /* We should already CoW the refcounted extent. */ BUG_ON(ext_flags & OCFS2_EXT_REFCOUNTED); /* @@ -601,20 +587,8 @@ static int ocfs2_direct_IO_get_blocks(struct inode *inode, sector_t iblock, */ if (p_blkno && !(ext_flags & OCFS2_EXT_UNWRITTEN)) map_bh(bh_result, inode->i_sb, p_blkno); - else { - /* - * ocfs2_prepare_inode_for_write() should have caught - * the case where we'd be filling a hole and triggered - * a buffered write instead. - */ - if (create) { - ret = -EIO; - mlog_errno(ret); - goto bail; - } - + else clear_buffer_mapped(bh_result); - } /* make sure we don't map more than max_blocks blocks here as that's all the kernel will handle at this point. */ |