From mboxrd@z Thu Jan 1 00:00:00 1970 From: Matthew Auld Subject: [PATCH 03/22] mm/shmem: parse mount options for MS_KERNMOUNT Date: Mon, 25 Sep 2017 19:47:18 +0100 Message-ID: <20170925184737.8807-4-matthew.auld@intel.com> References: <20170925184737.8807-1-matthew.auld@intel.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: Received: from mga11.intel.com (mga11.intel.com [192.55.52.93]) by gabe.freedesktop.org (Postfix) with ESMTPS id ABB946E3A6 for ; Mon, 25 Sep 2017 18:47:47 +0000 (UTC) In-Reply-To: <20170925184737.8807-1-matthew.auld@intel.com> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" To: intel-gfx@lists.freedesktop.org Cc: linux-mm@kvack.org, Hugh Dickins , Dave Hansen , "Kirill A . Shutemov" , Andrew Morton List-Id: intel-gfx@lists.freedesktop.org SW4gaTkxNSB3ZSBub3cgaGF2ZSBvdXIgb3duIHRtcGZzIG1vdW50LCBzbyBlbnN1cmUgdGhhdCBz aG1lbV9maWxsX3N1cGVyCmFsc28gY2FsbHMgc2htZW1fcGFyc2Vfb3B0aW9ucyB3aGVuIGRlYWxp bmcgd2l0aCBhIGtlcm5lbCBtb3VudC4KT3RoZXJ3aXNlIHdlIGhhdmUgdG8gY2x1bXNpbHkgY2Fs bCByZW1vdW50X2ZzIHdoZW4gd2Ugd2FudCB0byBzdXBwbHkgb3VyCm1vdW50IG9wdGlvbnMuCgpT aWduZWQtb2ZmLWJ5OiBNYXR0aGV3IEF1bGQgPG1hdHRoZXcuYXVsZEBpbnRlbC5jb20+CkNjOiBK b29uYXMgTGFodGluZW4gPGpvb25hcy5sYWh0aW5lbkBsaW51eC5pbnRlbC5jb20+CkNjOiBDaHJp cyBXaWxzb24gPGNocmlzQGNocmlzLXdpbHNvbi5jby51az4KQ2M6IERhdmUgSGFuc2VuIDxkYXZl LmhhbnNlbkBpbnRlbC5jb20+CkNjOiBLaXJpbGwgQS4gU2h1dGVtb3YgPGtpcmlsbEBzaHV0ZW1v di5uYW1lPgpDYzogQW5kcmV3IE1vcnRvbiA8YWtwbUBsaW51eC1mb3VuZGF0aW9uLm9yZz4KQ2M6 IEh1Z2ggRGlja2lucyA8aHVnaGRAZ29vZ2xlLmNvbT4KQ2M6IGxpbnV4LW1tQGt2YWNrLm9yZwot LS0KIG1tL3NobWVtLmMgfCAxMCArKysrKystLS0tCiAxIGZpbGUgY2hhbmdlZCwgNiBpbnNlcnRp b25zKCspLCA0IGRlbGV0aW9ucygtKQoKZGlmZiAtLWdpdCBhL21tL3NobWVtLmMgYi9tbS9zaG1l bS5jCmluZGV4IGFlMmU0NjI5MWZmYS4uNjA3NGU1MjdiOWI5IDEwMDY0NAotLS0gYS9tbS9zaG1l bS5jCisrKyBiL21tL3NobWVtLmMKQEAgLTM3ODEsMTMgKzM3ODEsMTUgQEAgaW50IHNobWVtX2Zp bGxfc3VwZXIoc3RydWN0IHN1cGVyX2Jsb2NrICpzYiwgdm9pZCAqZGF0YSwgaW50IHNpbGVudCkK IAlpZiAoIShzYi0+c19mbGFncyAmIE1TX0tFUk5NT1VOVCkpIHsKIAkJc2JpbmZvLT5tYXhfYmxv Y2tzID0gc2htZW1fZGVmYXVsdF9tYXhfYmxvY2tzKCk7CiAJCXNiaW5mby0+bWF4X2lub2RlcyA9 IHNobWVtX2RlZmF1bHRfbWF4X2lub2RlcygpOwotCQlpZiAoc2htZW1fcGFyc2Vfb3B0aW9ucyhk YXRhLCBzYmluZm8sIGZhbHNlKSkgewotCQkJZXJyID0gLUVJTlZBTDsKLQkJCWdvdG8gZmFpbGVk OwotCQl9CiAJfSBlbHNlIHsKIAkJc2ItPnNfZmxhZ3MgfD0gTVNfTk9VU0VSOwogCX0KKworCWlm IChzaG1lbV9wYXJzZV9vcHRpb25zKGRhdGEsIHNiaW5mbywgZmFsc2UpKSB7CisJCWVyciA9IC1F SU5WQUw7CisJCWdvdG8gZmFpbGVkOworCX0KKwogCXNiLT5zX2V4cG9ydF9vcCA9ICZzaG1lbV9l eHBvcnRfb3BzOwogCXNiLT5zX2ZsYWdzIHw9IE1TX05PU0VDOwogI2Vsc2UKLS0gCjIuMTMuNQoK X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX18KSW50ZWwtZ2Z4 IG1haWxpbmcgbGlzdApJbnRlbC1nZnhAbGlzdHMuZnJlZWRlc2t0b3Aub3JnCmh0dHBzOi8vbGlz dHMuZnJlZWRlc2t0b3Aub3JnL21haWxtYW4vbGlzdGluZm8vaW50ZWwtZ2Z4Cg== From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-pg0-f72.google.com (mail-pg0-f72.google.com [74.125.83.72]) by kanga.kvack.org (Postfix) with ESMTP id C3A066B0253 for ; Mon, 25 Sep 2017 14:48:07 -0400 (EDT) Received: by mail-pg0-f72.google.com with SMTP id 6so17575006pgh.0 for ; Mon, 25 Sep 2017 11:48:07 -0700 (PDT) Received: from mga03.intel.com (mga03.intel.com. [134.134.136.65]) by mx.google.com with ESMTPS id f10si4527532pgr.778.2017.09.25.11.48.06 for (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Mon, 25 Sep 2017 11:48:06 -0700 (PDT) From: Matthew Auld Subject: [PATCH 03/22] mm/shmem: parse mount options for MS_KERNMOUNT Date: Mon, 25 Sep 2017 19:47:18 +0100 Message-Id: <20170925184737.8807-4-matthew.auld@intel.com> In-Reply-To: <20170925184737.8807-1-matthew.auld@intel.com> References: <20170925184737.8807-1-matthew.auld@intel.com> Sender: owner-linux-mm@kvack.org List-ID: To: intel-gfx@lists.freedesktop.org Cc: Joonas Lahtinen , Chris Wilson , Dave Hansen , "Kirill A . Shutemov" , Andrew Morton , Hugh Dickins , linux-mm@kvack.org In i915 we now have our own tmpfs mount, so ensure that shmem_fill_super also calls shmem_parse_options when dealing with a kernel mount. Otherwise we have to clumsily call remount_fs when we want to supply our mount options. Signed-off-by: Matthew Auld Cc: Joonas Lahtinen Cc: Chris Wilson Cc: Dave Hansen Cc: Kirill A. Shutemov Cc: Andrew Morton Cc: Hugh Dickins Cc: linux-mm@kvack.org --- mm/shmem.c | 10 ++++++---- 1 file changed, 6 insertions(+), 4 deletions(-) diff --git a/mm/shmem.c b/mm/shmem.c index ae2e46291ffa..6074e527b9b9 100644 --- a/mm/shmem.c +++ b/mm/shmem.c @@ -3781,13 +3781,15 @@ int shmem_fill_super(struct super_block *sb, void *data, int silent) if (!(sb->s_flags & MS_KERNMOUNT)) { sbinfo->max_blocks = shmem_default_max_blocks(); sbinfo->max_inodes = shmem_default_max_inodes(); - if (shmem_parse_options(data, sbinfo, false)) { - err = -EINVAL; - goto failed; - } } else { sb->s_flags |= MS_NOUSER; } + + if (shmem_parse_options(data, sbinfo, false)) { + err = -EINVAL; + goto failed; + } + sb->s_export_op = &shmem_export_ops; sb->s_flags |= MS_NOSEC; #else -- 2.13.5 -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. 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