reiserfs: replace open-coded atomic_dec_and_mutex_lock() (a9913d7e) · Commits · 戴 / test

Replace the open-coded logic of atomic_dec_and_mutex_lock() in reiserfs_file_release(). Link: https://lore.kernel.org/r/20191103094431.GA18576-nikitas.angelinas@gmail.com Signed-off-by:

fs/reiserfs/file.c

+2 −8

Original line number	Diff line number	Diff line
		@@ -38,16 +38,10 @@ static int reiserfs_file_release(struct inode inode, struct file filp)

		BUG_ON(!S_ISREG(inode->i_mode));

		if (atomic_add_unless(&REISERFS_I(inode)->openers, -1, 1))
		if (!atomic_dec_and_mutex_lock(&REISERFS_I(inode)->openers,
		&REISERFS_I(inode)->tailpack))
		return 0;

		mutex_lock(&REISERFS_I(inode)->tailpack);

		if (!atomic_dec_and_test(&REISERFS_I(inode)->openers)) {
		mutex_unlock(&REISERFS_I(inode)->tailpack);
		return 0;
		}

		/* fast out for when nothing needs to be done */
		if ((!(REISERFS_I(inode)->i_flags & i_pack_on_close_mask) \|\|
		!tail_has_to_be_packed(inode)) &&