Gitweb: http://git.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=778f3dd5a13c9e1642e0b2efea4b769387a70afa Commit: 778f3dd5a13c9e1642e0b2efea4b769387a70afa Parent: 040b3a2df2dd26c3e401823f3b0ce3fe99e966c5 Author: David Miller <[EMAIL PROTECTED]> AuthorDate: Fri Jul 27 22:58:37 2007 -0700 Committer: Linus Torvalds <[EMAIL PROTECTED]> CommitDate: Sat Jul 28 19:42:22 2007 -0700
Fix procfs compat_ioctl regression It is important to only provide the compat_ioctl method if the downstream de->proc_fops does too, otherwise this utterly confuses the logic in fs/compat_ioctl.c and we end up doing the wrong thing. Signed-off-by: David S. Miller <[EMAIL PROTECTED]> Acked-by: Alexey Dobriyan <[EMAIL PROTECTED]> Signed-off-by: Linus Torvalds <[EMAIL PROTECTED]> --- fs/proc/inode.c | 24 ++++++++++++++++++++++-- 1 files changed, 22 insertions(+), 2 deletions(-) diff --git a/fs/proc/inode.c b/fs/proc/inode.c index 94e2c1a..a5b0dfd 100644 --- a/fs/proc/inode.c +++ b/fs/proc/inode.c @@ -386,6 +386,19 @@ static const struct file_operations proc_reg_file_ops = { .release = proc_reg_release, }; +#ifdef CONFIG_COMPAT +static const struct file_operations proc_reg_file_ops_no_compat = { + .llseek = proc_reg_llseek, + .read = proc_reg_read, + .write = proc_reg_write, + .poll = proc_reg_poll, + .unlocked_ioctl = proc_reg_unlocked_ioctl, + .mmap = proc_reg_mmap, + .open = proc_reg_open, + .release = proc_reg_release, +}; +#endif + struct inode *proc_get_inode(struct super_block *sb, unsigned int ino, struct proc_dir_entry *de) { @@ -413,8 +426,15 @@ struct inode *proc_get_inode(struct super_block *sb, unsigned int ino, if (de->proc_iops) inode->i_op = de->proc_iops; if (de->proc_fops) { - if (S_ISREG(inode->i_mode)) - inode->i_fop = &proc_reg_file_ops; + if (S_ISREG(inode->i_mode)) { +#ifdef CONFIG_COMPAT + if (!de->proc_fops->compat_ioctl) + inode->i_fop = + &proc_reg_file_ops_no_compat; + else +#endif + inode->i_fop = &proc_reg_file_ops; + } else inode->i_fop = de->proc_fops; } - To unsubscribe from this list: send the line "unsubscribe git-commits-head" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html