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[PATCH] fuse: don't update file times

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Don't change mtime/ctime/atime to local time on read/write.  Rather invalidate
file attributes, so next stat() will force a GETATTR call.  Bug reported by
Ben Grimm.

Signed-off-by: Miklos Szeredi <miklos@szeredi.hu>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Miklos Szeredi 2005-09-09 13:10:38 -07:00 committed by Linus Torvalds
parent 45323fb764
commit b36c31ba95
3 changed files with 9 additions and 4 deletions
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2
fs/fuse/dir.c
View file

@ -552,6 +552,7 @@ static int fuse_readdir(struct file *file, void *dstbuf, filldir_t filldir)
filldir);
__free_page(page);
fuse_invalidate_attr(inode); /* atime changed */
return err;
}
@ -585,6 +586,7 @@ static char *read_link(struct dentry *dentry)
link[req->out.args[0].size] = '\0';
out:
fuse_put_request(fc, req);
fuse_invalidate_attr(inode); /* atime changed */
return link;
}

10
fs/fuse/file.c
View file

@ -244,6 +244,7 @@ static int fuse_readpage(struct file *file, struct page *page)
fuse_put_request(fc, req);
if (!err)
SetPageUptodate(page);
fuse_invalidate_attr(inode); /* atime changed */
out:
unlock_page(page);
return err;
@ -312,6 +313,7 @@ static int fuse_readpages(struct file *file, struct address_space *mapping,
if (!err && data.req->num_pages)
err = fuse_send_readpages(data.req, file, inode);
fuse_put_request(fc, data.req);
fuse_invalidate_attr(inode); /* atime changed */
return err;
}
@ -380,8 +382,8 @@ static int fuse_commit_write(struct file *file, struct page *page,
clear_page_dirty(page);
SetPageUptodate(page);
}
} else if (err == -EINTR || err == -EIO)
fuse_invalidate_attr(inode);
}
fuse_invalidate_attr(inode);
return err;
}
@ -473,8 +475,8 @@ static ssize_t fuse_direct_io(struct file *file, const char __user *buf,
if (write && pos > i_size_read(inode))
i_size_write(inode, pos);
*ppos = pos;
} else if (write && (res == -EINTR || res == -EIO))
fuse_invalidate_attr(inode);
}
fuse_invalidate_attr(inode);
return res;
}

1
fs/fuse/inode.c
View file

@ -173,6 +173,7 @@ struct inode *fuse_iget(struct super_block *sb, unsigned long nodeid,
return NULL;
if ((inode->i_state & I_NEW)) {
inode->i_flags |= S_NOATIME|S_NOCMTIME;
inode->i_generation = generation;
inode->i_data.backing_dev_info = &fc->bdi;
fuse_init_inode(inode, attr);