From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail172.messagelabs.com (mail172.messagelabs.com [216.82.254.3]) by kanga.kvack.org (Postfix) with ESMTP id EDF7560021B for ; Fri, 4 Dec 2009 00:59:15 -0500 (EST) In-reply-to: <20091203195851.8925.30926.stgit@paris.rdu.redhat.com> (message from Eric Paris on Thu, 03 Dec 2009 14:58:51 -0500) Subject: Re: [RFC PATCH 1/6] shmem: use alloc_file instead of init_file References: <20091203195851.8925.30926.stgit@paris.rdu.redhat.com> Message-Id: From: Miklos Szeredi Date: Fri, 04 Dec 2009 06:58:41 +0100 Sender: owner-linux-mm@kvack.org To: Eric Paris Cc: linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org, viro@zeniv.linux.org.uk, jmorris@namei.org, npiggin@suse.de, zohar@us.ibm.com, jack@suse.cz, jmalicki@metacarta.com, dsmith@redhat.com, serue@us.ibm.com, hch@lst.de, john@johnmccutchan.com, rlove@rlove.org, ebiederm@xmission.com, heiko.carstens@de.ibm.com, penguin-kernel@I-love.SAKURA.ne.jp, mszeredi@suse.cz, jens.axboe@oracle.com, akpm@linux-foundation.org, matthew@wil.cx, hugh.dickins@tiscali.co.uk, kamezawa.hiroyu@jp.fujitsu.com, nishimura@mxp.nes.nec.co.jp, davem@davemloft.net, arnd@arndb.de, eric.dumazet@gmail.com List-ID: On Thu, 03 Dec 2009, Eric Paris wrote: > shmem uses get_empty_filp() and then init_file(). Their is no good reason > not to just use alloc_file() like everything else. There's a more in this patch, though, and none of that is explained... > > Signed-off-by: Eric Paris > --- > > mm/shmem.c | 20 ++++++++++---------- > 1 files changed, 10 insertions(+), 10 deletions(-) > > diff --git a/mm/shmem.c b/mm/shmem.c > index 356dd99..831f8bb 100644 > --- a/mm/shmem.c > +++ b/mm/shmem.c > @@ -2640,32 +2640,32 @@ struct file *shmem_file_setup(const char *name, loff_t size, unsigned long flags > if (!dentry) > goto put_memory; > > - error = -ENFILE; > - file = get_empty_filp(); > - if (!file) > - goto put_dentry; > - > error = -ENOSPC; > inode = shmem_get_inode(root->d_sb, S_IFREG | S_IRWXUGO, 0, flags); > if (!inode) > - goto close_file; > + goto put_dentry; > > d_instantiate(dentry, inode); > inode->i_size = size; > inode->i_nlink = 0; /* It is unlinked */ > - init_file(file, shm_mnt, dentry, FMODE_WRITE | FMODE_READ, > - &shmem_file_operations); > + > + error = -ENFILE; > + file = alloc_file(shm_mnt, dentry, FMODE_WRITE | FMODE_READ, > + &shmem_file_operations); > + if (!file) > + goto put_dentry; > > #ifndef CONFIG_MMU > error = ramfs_nommu_expand_for_mapping(inode, size); > if (error) > goto close_file; > #endif > - ima_counts_get(file); Where's this gone? > return file; > > +#ifndef CONFIG_MMU > close_file: I suggest moving this piece of cleanup into the ifdef above, instead of adding more ifdefs. > - put_filp(file); > + fput(file); OK, put_filp() seems to have been wrong here, but please document it in the changelog. > +#endif > put_dentry: > dput(dentry); > put_memory: > > -- > To unsubscribe from this list: send the line "unsubscribe linux-fsdevel" in > the body of a message to majordomo@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html > -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org