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fs: move inode_dio_wait calls into ->setattr

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Let filesystems handle waiting for direct I/O requests themselves instead
of doing it beforehand.  This means filesystem-specific locks to prevent
new dio referenes from appearing can be held.  This is important to allow
generalizing i_dio_count to non-DIO_LOCKING filesystems.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
Christoph Hellwig
2011-06-24 14:29:45 -04:00
committed by Al Viro
parent 11b80f459a
commit 562c72aa57
12 changed files with 24 additions and 3 deletions
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2
fs/ocfs2/file.c
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@ -1142,6 +1142,8 @@ int ocfs2_setattr(struct dentry *dentry, struct iattr *attr)
if (status)
goto bail_unlock;
inode_dio_wait(inode);
if (i_size_read(inode) > attr->ia_size) {
if (ocfs2_should_order_data(inode)) {
status = ocfs2_begin_ordered_truncate(inode,