| lists.openwall.net | lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC | |
|
Open Source and information security mailing list archives
| ||
|
Date: Thu, 01 Nov 2012 00:58:29 -0700
From: "Darrick J. Wong" <darrick.wong@...cle.com>
To: axboe@...nel.dk, lucho@...kov.net, tytso@....edu, sage@...tank.com,
darrick.wong@...cle.com, ericvh@...il.com, mfasheh@...e.com,
dedekind1@...il.com, adrian.hunter@...el.com, dhowells@...hat.com,
sfrench@...ba.org, jlbec@...lplan.org, rminnich@...dia.gov
Cc: linux-cifs@...r.kernel.org, jack@...e.cz,
martin.petersen@...cle.com, neilb@...e.de, david@...morbit.com,
linux-kernel@...r.kernel.org, linux-mm@...ck.org,
linux-mtd@...ts.infradead.org, bharrosh@...asas.com,
linux-fsdevel@...r.kernel.org,
v9fs-developer@...ts.sourceforge.net, ceph-devel@...r.kernel.org,
linux-ext4@...r.kernel.org, linux-afs@...ts.infradead.org,
ocfs2-devel@....oracle.com
Subject: [PATCH 3/3] fs: Fix remaining filesystems to wait for stable page
writeback
Fix up the filesystems that provide their own ->page_mkwrite handlers to
provide stable page writes if necessary.
Signed-off-by: Darrick J. Wong <darrick.wong@...cle.com>
---
fs/9p/vfs_file.c | 1 +
fs/afs/write.c | 4 ++--
fs/ceph/addr.c | 1 +
fs/cifs/file.c | 1 +
fs/ocfs2/mmap.c | 1 +
fs/ubifs/file.c | 4 ++--
6 files changed, 8 insertions(+), 4 deletions(-)
diff --git a/fs/9p/vfs_file.c b/fs/9p/vfs_file.c
index c2483e9..aa253f0 100644
--- a/fs/9p/vfs_file.c
+++ b/fs/9p/vfs_file.c
@@ -620,6 +620,7 @@ v9fs_vm_page_mkwrite(struct vm_area_struct *vma, struct vm_fault *vmf)
lock_page(page);
if (page->mapping != inode->i_mapping)
goto out_unlock;
+ wait_on_stable_page_write(page);
return VM_FAULT_LOCKED;
out_unlock:
diff --git a/fs/afs/write.c b/fs/afs/write.c
index 9aa52d9..39eb2a4 100644
--- a/fs/afs/write.c
+++ b/fs/afs/write.c
@@ -758,7 +758,7 @@ int afs_page_mkwrite(struct vm_area_struct *vma, struct page *page)
#ifdef CONFIG_AFS_FSCACHE
fscache_wait_on_page_write(vnode->cache, page);
#endif
-
+ wait_on_stable_page_write(page);
_leave(" = 0");
- return 0;
+ return VM_FAULT_LOCKED;
}
diff --git a/fs/ceph/addr.c b/fs/ceph/addr.c
index 6690269..e9734bf 100644
--- a/fs/ceph/addr.c
+++ b/fs/ceph/addr.c
@@ -1208,6 +1208,7 @@ static int ceph_page_mkwrite(struct vm_area_struct *vma, struct vm_fault *vmf)
set_page_dirty(page);
up_read(&mdsc->snap_rwsem);
ret = VM_FAULT_LOCKED;
+ wait_on_stable_page_write(page);
} else {
if (ret == -ENOMEM)
ret = VM_FAULT_OOM;
diff --git a/fs/cifs/file.c b/fs/cifs/file.c
index edb25b4..a8770bf 100644
--- a/fs/cifs/file.c
+++ b/fs/cifs/file.c
@@ -2997,6 +2997,7 @@ cifs_page_mkwrite(struct vm_area_struct *vma, struct vm_fault *vmf)
struct page *page = vmf->page;
lock_page(page);
+ wait_on_stable_page_write(page);
return VM_FAULT_LOCKED;
}
diff --git a/fs/ocfs2/mmap.c b/fs/ocfs2/mmap.c
index 47a87dd..a0027b1 100644
--- a/fs/ocfs2/mmap.c
+++ b/fs/ocfs2/mmap.c
@@ -124,6 +124,7 @@ static int __ocfs2_page_mkwrite(struct file *file, struct buffer_head *di_bh,
fsdata);
BUG_ON(ret != len);
ret = VM_FAULT_LOCKED;
+ wait_on_stable_page_write(page);
out:
return ret;
}
diff --git a/fs/ubifs/file.c b/fs/ubifs/file.c
index 5bc7781..cb0d3aa 100644
--- a/fs/ubifs/file.c
+++ b/fs/ubifs/file.c
@@ -1522,8 +1522,8 @@ static int ubifs_vm_page_mkwrite(struct vm_area_struct *vma,
ubifs_release_dirty_inode_budget(c, ui);
}
- unlock_page(page);
- return 0;
+ wait_on_stable_page_write(page);
+ return VM_FAULT_LOCKED;
out_unlock:
unlock_page(page);
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
Powered by blists - more mailing lists