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Message-Id: <1318430946-7091-5-git-send-email-miklos@szeredi.hu> Date: Wed, 12 Oct 2011 16:48:57 +0200 From: Miklos Szeredi <miklos@...redi.hu> To: viro@...IV.linux.org.uk Cc: linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org, jack@...e.cz, hch@...radead.org, akpm@...ux-foundation.org, toshi.okajima@...fujitsu.com, mszeredi@...e.cz Subject: [PATCH 04/13] vfs: fs_may_remount_ro: turn unnecessary check into a WARN_ON From: Miklos Szeredi <mszeredi@...e.cz> Now a successful sb_prepare_remount_readonly() should ensure that no writable files remain for this superblock. So turn this check into a WARN_ON. Signed-off-by: Miklos Szeredi <mszeredi@...e.cz> --- fs/file_table.c | 7 +++++-- 1 files changed, 5 insertions(+), 2 deletions(-) diff --git a/fs/file_table.c b/fs/file_table.c index c322794..dc9f437 100644 --- a/fs/file_table.c +++ b/fs/file_table.c @@ -486,8 +486,11 @@ int fs_may_remount_ro(struct super_block *sb) if (inode->i_nlink == 0) goto too_bad; - /* Writeable file? */ - if (S_ISREG(inode->i_mode) && (file->f_mode & FMODE_WRITE)) + /* + * Writable file? + * Should be caught by sb_prepare_remount_readonly(). + */ + if (WARN_ON(S_ISREG(inode->i_mode) && (file->f_mode & FMODE_WRITE))) goto too_bad; } while_file_list_for_each_entry; lg_global_unlock(files_lglock); -- 1.7.3.4 -- 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/
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