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authorJan Kara <jack@suse.cz>2012-06-12 16:20:40 +0200
committerAl Viro <viro@zeniv.linux.org.uk>2012-07-31 09:45:49 +0400
commitfef6925cd4c6b564ecff477e07a0fca987542223 (patch)
tree2791b2d287819453b830ad60c316d4f19fcaeead /fs/ocfs2/mmap.c
parentd9457dc056249913a7abe8b71dc09e427e590e35 (diff)
ocfs2: Convert to new freezing mechanism
Protect ocfs2_page_mkwrite() and ocfs2_file_aio_write() using the new freeze protection. We also protect several ioctl entry points which were missing the protection. Finally, we add freeze protection to the journaling mechanism so that iput() of unlinked inode cannot modify a frozen filesystem. CC: Mark Fasheh <mfasheh@suse.com> CC: Joel Becker <jlbec@evilplan.org> CC: ocfs2-devel@oss.oracle.com Acked-by: Joel Becker <jlbec@evilplan.org> Signed-off-by: Jan Kara <jack@suse.cz> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'fs/ocfs2/mmap.c')
-rw-r--r--fs/ocfs2/mmap.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/fs/ocfs2/mmap.c b/fs/ocfs2/mmap.c
index 9cd41083e99..d150372fd81 100644
--- a/fs/ocfs2/mmap.c
+++ b/fs/ocfs2/mmap.c
@@ -136,6 +136,7 @@ static int ocfs2_page_mkwrite(struct vm_area_struct *vma, struct vm_fault *vmf)
sigset_t oldset;
int ret;
+ sb_start_pagefault(inode->i_sb);
ocfs2_block_signals(&oldset);
/*
@@ -165,6 +166,7 @@ static int ocfs2_page_mkwrite(struct vm_area_struct *vma, struct vm_fault *vmf)
out:
ocfs2_unblock_signals(&oldset);
+ sb_end_pagefault(inode->i_sb);
return ret;
}